From 2c6fd7f005829231b19bd6b37549d4b656d422cc Mon Sep 17 00:00:00 2001
From: yangchong <yangchong211@163.com>
Date: Sat, 16 Oct 2021 12:40:24 +0800
Subject: [PATCH] =?UTF-8?q?=E5=AE=8C=E5=96=84=E4=BB=A3=E7=A0=81=E6=A1=88?=
 =?UTF-8?q?=E4=BE=8B?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 .idea/gradle.xml                              |   2 +
 .idea/modules.xml                             |   2 +
 SelectViewLib/.gitignore                      |   1 +
 SelectViewLib/build.gradle                    | 148 +++++++++
 SelectViewLib/consumer-rules.pro              |   0
 SelectViewLib/proguard-rules.pro              |  21 ++
 .../ExampleInstrumentedTest.java              |  26 ++
 SelectViewLib/src/main/AndroidManifest.xml    |   5 +
 .../com/yc/selectviewlib/FingerListener.java  |   5 +
 .../yc/selectviewlib/SelectRecyclerView.java  | 284 ++++++++++++++++++
 .../SelectRecyclerViewAdapter.java            | 193 ++++++++++++
 .../yc/selectviewlib/SelectionListener.java   |   5 +
 SelectViewLib/src/main/res/values/attrs.xml   |   9 +
 SelectViewLib/src/main/res/values/dimens.xml  |   4 +
 .../com/yc/selectviewlib/ExampleUnitTest.java |  17 ++
 ShopCatLib/.gitignore                         |   1 +
 ShopCatLib/build.gradle                       |  30 ++
 ShopCatLib/proguard-rules.pro                 |  21 ++
 ShopCatLib/src/main/AndroidManifest.xml       |   2 +
 .../ycbjie/ycshopcatlib/VerticalListView.java |  85 ++++++
 .../ycshopcatlib/VerticalRecyclerView.java    | 137 +++++++++
 ShopCatLib/src/main/res/values/strings.xml    |   3 +
 app/build.gradle                              |   1 +
 app/src/main/AndroidManifest.xml              |   1 +
 .../org/yczbj/ycrefreshview/MainActivity.java |   5 +
 .../select/SelectFollowActivity.java          | 140 +++++++++
 .../select/SelectFollowAdapter.java           |  96 ++++++
 .../ycrefreshview/select/SelectPoint.java     |  42 +++
 .../main/res/drawable/shape_btn_color_bg.xml  |  19 ++
 .../res/drawable/shape_btn_color_bg_press.xml |  18 ++
 app/src/main/res/layout/activity_main.xml     |   8 +
 .../res/layout/activity_select_follow.xml     |  53 ++++
 app/src/main/res/layout/tag_select_follow.xml |  18 ++
 app/src/main/res/values/array.xml             |  42 +++
 settings.gradle                               |   2 +
 35 files changed, 1446 insertions(+)
 create mode 100644 SelectViewLib/.gitignore
 create mode 100644 SelectViewLib/build.gradle
 create mode 100644 SelectViewLib/consumer-rules.pro
 create mode 100644 SelectViewLib/proguard-rules.pro
 create mode 100644 SelectViewLib/src/androidTest/java/com/yc/selectviewlib/ExampleInstrumentedTest.java
 create mode 100644 SelectViewLib/src/main/AndroidManifest.xml
 create mode 100644 SelectViewLib/src/main/java/com/yc/selectviewlib/FingerListener.java
 create mode 100644 SelectViewLib/src/main/java/com/yc/selectviewlib/SelectRecyclerView.java
 create mode 100644 SelectViewLib/src/main/java/com/yc/selectviewlib/SelectRecyclerViewAdapter.java
 create mode 100644 SelectViewLib/src/main/java/com/yc/selectviewlib/SelectionListener.java
 create mode 100644 SelectViewLib/src/main/res/values/attrs.xml
 create mode 100644 SelectViewLib/src/main/res/values/dimens.xml
 create mode 100644 SelectViewLib/src/test/java/com/yc/selectviewlib/ExampleUnitTest.java
 create mode 100644 ShopCatLib/.gitignore
 create mode 100644 ShopCatLib/build.gradle
 create mode 100644 ShopCatLib/proguard-rules.pro
 create mode 100644 ShopCatLib/src/main/AndroidManifest.xml
 create mode 100644 ShopCatLib/src/main/java/com/ycbjie/ycshopcatlib/VerticalListView.java
 create mode 100644 ShopCatLib/src/main/java/com/ycbjie/ycshopcatlib/VerticalRecyclerView.java
 create mode 100644 ShopCatLib/src/main/res/values/strings.xml
 create mode 100644 app/src/main/java/org/yczbj/ycrefreshview/select/SelectFollowActivity.java
 create mode 100644 app/src/main/java/org/yczbj/ycrefreshview/select/SelectFollowAdapter.java
 create mode 100644 app/src/main/java/org/yczbj/ycrefreshview/select/SelectPoint.java
 create mode 100644 app/src/main/res/drawable/shape_btn_color_bg.xml
 create mode 100644 app/src/main/res/drawable/shape_btn_color_bg_press.xml
 create mode 100644 app/src/main/res/layout/activity_select_follow.xml
 create mode 100644 app/src/main/res/layout/tag_select_follow.xml

diff --git a/.idea/gradle.xml b/.idea/gradle.xml
index 7a60436..d3ad020 100644
--- a/.idea/gradle.xml
+++ b/.idea/gradle.xml
@@ -12,6 +12,8 @@
             <option value="$PROJECT_DIR$" />
             <option value="$PROJECT_DIR$/PhotoCoverLib" />
             <option value="$PROJECT_DIR$/RefreshViewLib" />
+            <option value="$PROJECT_DIR$/SelectViewLib" />
+            <option value="$PROJECT_DIR$/ShopCatLib" />
             <option value="$PROJECT_DIR$/SlideViewLib" />
             <option value="$PROJECT_DIR$/app" />
           </set>
diff --git a/.idea/modules.xml b/.idea/modules.xml
index eacc900..930fd59 100644
--- a/.idea/modules.xml
+++ b/.idea/modules.xml
@@ -5,6 +5,8 @@
       <module fileurl="file://$PROJECT_DIR$/.idea/modules/YCRefreshView.iml" filepath="$PROJECT_DIR$/.idea/modules/YCRefreshView.iml" />
       <module fileurl="file://$PROJECT_DIR$/.idea/modules/PhotoCoverLib/YCRefreshView.PhotoCoverLib.iml" filepath="$PROJECT_DIR$/.idea/modules/PhotoCoverLib/YCRefreshView.PhotoCoverLib.iml" />
       <module fileurl="file://$PROJECT_DIR$/.idea/modules/YCRefreshViewLib/YCRefreshView.RefreshViewLib.iml" filepath="$PROJECT_DIR$/.idea/modules/YCRefreshViewLib/YCRefreshView.RefreshViewLib.iml" />
+      <module fileurl="file://$PROJECT_DIR$/.idea/modules/SelectViewLib/YCRefreshView.SelectViewLib.iml" filepath="$PROJECT_DIR$/.idea/modules/SelectViewLib/YCRefreshView.SelectViewLib.iml" />
+      <module fileurl="file://$PROJECT_DIR$/.idea/modules/YCShopCatLib/YCRefreshView.ShopCatLib.iml" filepath="$PROJECT_DIR$/.idea/modules/YCShopCatLib/YCRefreshView.ShopCatLib.iml" />
       <module fileurl="file://$PROJECT_DIR$/.idea/modules/YCSlideViewLib/YCRefreshView.SlideViewLib.iml" filepath="$PROJECT_DIR$/.idea/modules/YCSlideViewLib/YCRefreshView.SlideViewLib.iml" />
       <module fileurl="file://$PROJECT_DIR$/.idea/modules/app/YCRefreshView.app.iml" filepath="$PROJECT_DIR$/.idea/modules/app/YCRefreshView.app.iml" />
     </modules>
diff --git a/SelectViewLib/.gitignore b/SelectViewLib/.gitignore
new file mode 100644
index 0000000..42afabf
--- /dev/null
+++ b/SelectViewLib/.gitignore
@@ -0,0 +1 @@
+/build
\ No newline at end of file
diff --git a/SelectViewLib/build.gradle b/SelectViewLib/build.gradle
new file mode 100644
index 0000000..e919040
--- /dev/null
+++ b/SelectViewLib/build.gradle
@@ -0,0 +1,148 @@
+plugins {
+    id 'com.android.library'
+}
+
+android {
+    compileSdkVersion 29
+    buildToolsVersion "29.0.0"
+
+    defaultConfig {
+        minSdkVersion 17
+        targetSdkVersion 29
+        versionCode 1
+        versionName "1.0"
+
+        testInstrumentationRunner 'androidx.test.runner.AndroidJUnitRunner'
+
+    }
+    buildTypes {
+        release {
+            minifyEnabled false
+            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
+        }
+    }
+}
+
+dependencies {
+    implementation fileTree(dir: 'libs', include: ['*.jar'])
+    implementation 'androidx.appcompat:appcompat:1.2.0'
+    implementation 'androidx.annotation:annotation:1.1.0'
+    implementation 'androidx.recyclerview:recyclerview:1.1.0'
+}
+
+
+/** 以下开始是将Android Library上传到jcenter的相关配置**/
+apply plugin: 'com.github.dcendents.android-maven'
+apply plugin: 'com.jfrog.bintray'
+
+//项目主页
+def siteUrl = 'https://github.com/yangchong211/YCRefreshView'    // project homepage
+//项目的版本控制地址
+def gitUrl = 'https://github.com/yangchong211/YCRefreshView.git' // project git
+
+//发布到组织名称名字，必须填写
+group = "cn.yc"
+//发布到JCenter上的项目名字，必须填写
+def libName = "YCRecycleViewLib"
+// 版本号，下次更新是只需要更改版本号即可
+version = "1.1"
+/**  上面配置后上传至jcenter后的编译路径是这样的： compile 'cn.yc:YCRefreshViewLib:2.5'  **/
+
+//生成源文件
+task sourcesJar(type: Jar) {
+    from android.sourceSets.main.java.srcDirs
+    classifier = 'sources'
+}
+//生成文档
+task javadoc(type: Javadoc) {
+    source = android.sourceSets.main.java.srcDirs
+    classpath += project.files(android.getBootClasspath().join(File.pathSeparator))
+    options.encoding "UTF-8"
+    options.charSet 'UTF-8'
+    options.author true
+    options.version true
+    options.links "https://github.com/linglongxin24/FastDev/tree/master/mylibrary/docs/javadoc"
+    failOnError false
+}
+
+//文档打包成jar
+task javadocJar(type: Jar, dependsOn: javadoc) {
+    classifier = 'javadoc'
+    from javadoc.destinationDir
+}
+//拷贝javadoc文件
+task copyDoc(type: Copy) {
+    from "${buildDir}/docs/"
+    into "docs"
+}
+
+//上传到jcenter所需要的源码文件
+artifacts {
+    archives javadocJar
+    archives sourcesJar
+}
+
+// 配置maven库，生成POM.xml文件
+install {
+    repositories.mavenInstaller {
+        // This generates POM.xml with proper parameters
+        pom {
+            project {
+                packaging 'aar'
+                //项目描述，自由填写
+                name 'This is refresh view'
+                url siteUrl
+                licenses {
+                    license {
+                        //开源协议
+                        name 'The Apache Software License, Version 2.0'
+                        url 'http://www.apache.org/licenses/LICENSE-2.0.txt'
+                    }
+                }
+                developers {
+                    developer {
+                        //开发者的个人信息，根据个人信息填写
+                        id 'yangchong'
+                        name 'yc'
+                        email 'yangchong211@163.com'
+                    }
+                }
+                scm {
+                    connection gitUrl
+                    developerConnection gitUrl
+                    url siteUrl
+                }
+            }
+        }
+    }
+}
+
+//上传到jcenter
+Properties properties = new Properties()
+properties.load(project.rootProject.file('local.properties').newDataInputStream())
+bintray {
+    user = properties.getProperty("bintray.user")    //读取 local.properties 文件里面的 bintray.user
+    key = properties.getProperty("bintray.apikey")  //读取 local.properties 文件里面的 bintray.apikey
+    configurations = ['archives']
+    pkg {
+        repo = "maven"
+        name = libName    //发布到JCenter上的项目名字，必须填写
+        desc = 'android YCRecycleViewLib'    //项目描述
+        websiteUrl = siteUrl
+        vcsUrl = gitUrl
+        licenses = ["Apache-2.0"]
+        publish = true
+    }
+}
+
+javadoc {
+    options {
+        //如果你的项目里面有中文注释的话，必须将格式设置为UTF-8，不然会出现乱码
+        encoding "UTF-8"
+        charSet 'UTF-8'
+        author true
+        version true
+        links "http://docs.oracle.com/javase/7/docs/api"
+    }
+}
+
diff --git a/SelectViewLib/consumer-rules.pro b/SelectViewLib/consumer-rules.pro
new file mode 100644
index 0000000..e69de29
diff --git a/SelectViewLib/proguard-rules.pro b/SelectViewLib/proguard-rules.pro
new file mode 100644
index 0000000..481bb43
--- /dev/null
+++ b/SelectViewLib/proguard-rules.pro
@@ -0,0 +1,21 @@
+# Add project specific ProGuard rules here.
+# You can control the set of applied configuration files using the
+# proguardFiles setting in build.gradle.
+#
+# For more details, see
+#   http://developer.android.com/guide/developing/tools/proguard.html
+
+# If your project uses WebView with JS, uncomment the following
+# and specify the fully qualified class name to the JavaScript interface
+# class:
+#-keepclassmembers class fqcn.of.javascript.interface.for.webview {
+#   public *;
+#}
+
+# Uncomment this to preserve the line number information for
+# debugging stack traces.
+#-keepattributes SourceFile,LineNumberTable
+
+# If you keep the line number information, uncomment this to
+# hide the original source file name.
+#-renamesourcefileattribute SourceFile
\ No newline at end of file
diff --git a/SelectViewLib/src/androidTest/java/com/yc/selectviewlib/ExampleInstrumentedTest.java b/SelectViewLib/src/androidTest/java/com/yc/selectviewlib/ExampleInstrumentedTest.java
new file mode 100644
index 0000000..77c4a5f
--- /dev/null
+++ b/SelectViewLib/src/androidTest/java/com/yc/selectviewlib/ExampleInstrumentedTest.java
@@ -0,0 +1,26 @@
+package com.yc.selectviewlib;
+
+import android.content.Context;
+
+import androidx.test.platform.app.InstrumentationRegistry;
+import androidx.test.ext.junit.runners.AndroidJUnit4;
+
+import org.junit.Test;
+import org.junit.runner.RunWith;
+
+import static org.junit.Assert.*;
+
+/**
+ * Instrumented test, which will execute on an Android device.
+ *
+ * @see <a href="http://d.android.com/tools/testing">Testing documentation</a>
+ */
+@RunWith(AndroidJUnit4.class)
+public class ExampleInstrumentedTest {
+    @Test
+    public void useAppContext() {
+        // Context of the app under test.
+        Context appContext = InstrumentationRegistry.getInstrumentation().getTargetContext();
+        assertEquals("com.yc.selectviewlib.test", appContext.getPackageName());
+    }
+}
\ No newline at end of file
diff --git a/SelectViewLib/src/main/AndroidManifest.xml b/SelectViewLib/src/main/AndroidManifest.xml
new file mode 100644
index 0000000..bc078be
--- /dev/null
+++ b/SelectViewLib/src/main/AndroidManifest.xml
@@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    package="com.yc.selectviewlib">
+
+</manifest>
\ No newline at end of file
diff --git a/SelectViewLib/src/main/java/com/yc/selectviewlib/FingerListener.java b/SelectViewLib/src/main/java/com/yc/selectviewlib/FingerListener.java
new file mode 100644
index 0000000..caebe79
--- /dev/null
+++ b/SelectViewLib/src/main/java/com/yc/selectviewlib/FingerListener.java
@@ -0,0 +1,5 @@
+package com.yc.selectviewlib;
+
+public interface FingerListener {
+    void onDragSelectFingerAction(boolean var1);
+}
diff --git a/SelectViewLib/src/main/java/com/yc/selectviewlib/SelectRecyclerView.java b/SelectViewLib/src/main/java/com/yc/selectviewlib/SelectRecyclerView.java
new file mode 100644
index 0000000..15d9f9c
--- /dev/null
+++ b/SelectViewLib/src/main/java/com/yc/selectviewlib/SelectRecyclerView.java
@@ -0,0 +1,284 @@
+package com.yc.selectviewlib;
+
+
+import android.content.Context;
+import android.content.res.TypedArray;
+import android.graphics.Canvas;
+import android.graphics.Paint;
+import android.graphics.RectF;
+import android.graphics.Paint.Style;
+import android.os.Handler;
+import android.util.AttributeSet;
+import android.view.MotionEvent;
+import android.view.View;
+
+import androidx.annotation.Nullable;
+import androidx.recyclerview.widget.RecyclerView;
+
+
+public class SelectRecyclerView extends RecyclerView {
+    private static final boolean LOGGING = false;
+    private static final int AUTO_SCROLL_DELAY = 25;
+    private int lastDraggedIndex = -1;
+    private SelectRecyclerViewAdapter<?> adapter;
+    private int initialSelection;
+    private boolean dragSelectActive;
+    private int minReached;
+    private int maxReached;
+    private int hotspotHeight;
+    private int hotspotOffsetTop;
+    private int hotspotOffsetBottom;
+    private int hotspotTopBoundStart;
+    private int hotspotTopBoundEnd;
+    private int hotspotBottomBoundStart;
+    private int hotspotBottomBoundEnd;
+    private int autoScrollVelocity;
+    private boolean inTopHotspot;
+    private boolean inBottomHotspot;
+    private RectF topBoundRect;
+    private RectF bottomBoundRect;
+    private Paint debugPaint;
+    private boolean debugEnabled = false;
+    private FingerListener fingerListener;
+    private Handler autoScrollHandler;
+    private Runnable autoScrollRunnable;
+
+    public SelectRecyclerView(Context context) {
+        super(context);
+        this.autoScrollRunnable = new NamelessClass_1();
+        this.init(context, (AttributeSet)null);
+    }
+
+    public SelectRecyclerView(Context context, AttributeSet attrs) {
+        super(context, attrs);
+        this.autoScrollRunnable = new NamelessClass_1();
+        this.init(context, attrs);
+    }
+
+    public SelectRecyclerView(Context context, AttributeSet attrs, int defStyle) {
+        super(context, attrs, defStyle);
+        this.autoScrollRunnable = new NamelessClass_1();
+        this.init(context, attrs);
+    }
+
+    class NamelessClass_1 implements Runnable {
+        NamelessClass_1() {
+        }
+        public void run() {
+            if (SelectRecyclerView.this.autoScrollHandler != null) {
+                if (SelectRecyclerView.this.inTopHotspot) {
+                    SelectRecyclerView.this.scrollBy(0, -SelectRecyclerView.this.autoScrollVelocity);
+                    SelectRecyclerView.this.autoScrollHandler.postDelayed(this, 25L);
+                } else if (SelectRecyclerView.this.inBottomHotspot) {
+                    SelectRecyclerView.this.scrollBy(0, SelectRecyclerView.this.autoScrollVelocity);
+                    SelectRecyclerView.this.autoScrollHandler.postDelayed(this, 25L);
+                }
+
+            }
+        }
+    }
+
+    private void init(Context context, AttributeSet attrs) {
+        this.autoScrollHandler = new Handler();
+        int defaultHotspotHeight = context.getResources().getDimensionPixelSize(R.dimen.spotHeight);
+        if (attrs != null) {
+            TypedArray a = context.getTheme().obtainStyledAttributes(attrs, R.styleable.SelectRecyclerView, 0, 0);
+
+            try {
+                boolean autoScrollEnabled = a.getBoolean(R.styleable.SelectRecyclerView_scrollEnabled, true);
+                if (!autoScrollEnabled) {
+                    this.hotspotHeight = -1;
+                    this.hotspotOffsetTop = -1;
+                    this.hotspotOffsetBottom = -1;
+                } else {
+                    this.hotspotHeight = a.getDimensionPixelSize(R.styleable.SelectRecyclerView_spotHeight, defaultHotspotHeight);
+                    this.hotspotOffsetTop = a.getDimensionPixelSize(R.styleable.SelectRecyclerView_spot_offsetTop, 0);
+                    this.hotspotOffsetBottom = a.getDimensionPixelSize(R.styleable.SelectRecyclerView_spot_offsetBottom, 0);
+                }
+            } finally {
+                a.recycle();
+            }
+        } else {
+            this.hotspotHeight = defaultHotspotHeight;
+        }
+
+    }
+
+    public void setFingerListener(@Nullable FingerListener listener) {
+        this.fingerListener = listener;
+    }
+
+    protected void onMeasure(int widthSpec, int heightSpec) {
+        super.onMeasure(widthSpec, heightSpec);
+        if (this.hotspotHeight > -1) {
+            this.hotspotTopBoundStart = this.hotspotOffsetTop;
+            this.hotspotTopBoundEnd = this.hotspotOffsetTop + this.hotspotHeight;
+            this.hotspotBottomBoundStart = this.getMeasuredHeight() - this.hotspotHeight - this.hotspotOffsetBottom;
+            this.hotspotBottomBoundEnd = this.getMeasuredHeight() - this.hotspotOffsetBottom;
+        }
+
+    }
+
+    public boolean setDragSelectActive(boolean active, int initialSelection) {
+        if (active && this.dragSelectActive) {
+            return false;
+        } else {
+            this.lastDraggedIndex = -1;
+            this.minReached = -1;
+            this.maxReached = -1;
+            if (!this.adapter.isIndexSelectable(initialSelection)) {
+                this.dragSelectActive = false;
+                this.initialSelection = -1;
+                this.lastDraggedIndex = -1;
+                return false;
+            } else {
+                this.adapter.setSelected(initialSelection, true);
+                this.dragSelectActive = active;
+                this.initialSelection = initialSelection;
+                this.lastDraggedIndex = initialSelection;
+                if (this.fingerListener != null) {
+                    this.fingerListener.onDragSelectFingerAction(true);
+                }
+
+                return true;
+            }
+        }
+    }
+
+    /** @deprecated */
+    @Deprecated
+    public void setAdapter(Adapter adapter) {
+        if (!(adapter instanceof SelectRecyclerViewAdapter)) {
+            throw new IllegalArgumentException("Adapter must be a DragSelectRecyclerViewAdapter.");
+        } else {
+            this.setAdapter((SelectRecyclerViewAdapter)adapter);
+        }
+    }
+
+    public void setAdapter(SelectRecyclerViewAdapter<?> adapter) {
+        super.setAdapter(adapter);
+        this.adapter = adapter;
+    }
+
+    private int getItemPosition(MotionEvent e) {
+        View v = this.findChildViewUnder(e.getX(), e.getY());
+        if (v == null) {
+            return -1;
+        } else if (v.getTag() != null && v.getTag() instanceof ViewHolder) {
+            ViewHolder holder = (ViewHolder)v.getTag();
+            return holder.getAdapterPosition();
+        } else {
+            throw new IllegalStateException("Make sure your adapter makes a call to super.onBindViewHolder(), and doesn't override itemView tags.");
+        }
+    }
+
+    public final void enableDebug() {
+        this.debugEnabled = true;
+        this.invalidate();
+    }
+
+    public void onDraw(Canvas c) {
+        super.onDraw(c);
+        if (this.debugEnabled) {
+            if (this.debugPaint == null) {
+                this.debugPaint = new Paint();
+                this.debugPaint.setColor(-16777216);
+                this.debugPaint.setAntiAlias(true);
+                this.debugPaint.setStyle(Style.FILL);
+                this.topBoundRect = new RectF(0.0F, (float)this.hotspotTopBoundStart, (float)this.getMeasuredWidth(), (float)this.hotspotTopBoundEnd);
+                this.bottomBoundRect = new RectF(0.0F, (float)this.hotspotBottomBoundStart, (float)this.getMeasuredWidth(), (float)this.hotspotBottomBoundEnd);
+            }
+
+            c.drawRect(this.topBoundRect, this.debugPaint);
+            c.drawRect(this.bottomBoundRect, this.debugPaint);
+        }
+
+    }
+
+    public boolean dispatchTouchEvent(MotionEvent e) {
+        if (this.adapter.getItemCount() == 0) {
+            return super.dispatchTouchEvent(e);
+        } else {
+            if (this.dragSelectActive) {
+                int itemPosition = this.getItemPosition(e);
+                if (e.getAction() == 1) {
+                    this.dragSelectActive = false;
+                    this.inTopHotspot = false;
+                    this.inBottomHotspot = false;
+                    this.autoScrollHandler.removeCallbacks(this.autoScrollRunnable);
+                    if (this.fingerListener != null) {
+                        this.fingerListener.onDragSelectFingerAction(false);
+                    }
+
+                    return true;
+                }
+
+                if (e.getAction() == 2) {
+                    if (this.hotspotHeight > -1) {
+                        float simulatedY;
+                        float simulatedFactor;
+                        if (e.getY() >= (float)this.hotspotTopBoundStart && e.getY() <= (float)this.hotspotTopBoundEnd) {
+                            this.inBottomHotspot = false;
+                            if (!this.inTopHotspot) {
+                                this.inTopHotspot = true;
+                                this.autoScrollHandler.removeCallbacks(this.autoScrollRunnable);
+                                this.autoScrollHandler.postDelayed(this.autoScrollRunnable, 25L);
+                            }
+
+                            simulatedY = (float)(this.hotspotTopBoundEnd - this.hotspotTopBoundStart);
+                            simulatedFactor = e.getY() - (float)this.hotspotTopBoundStart;
+                            this.autoScrollVelocity = (int)(simulatedY - simulatedFactor) / 2;
+                        } else if (e.getY() >= (float)this.hotspotBottomBoundStart && e.getY() <= (float)this.hotspotBottomBoundEnd) {
+                            this.inTopHotspot = false;
+                            if (!this.inBottomHotspot) {
+                                this.inBottomHotspot = true;
+                                this.autoScrollHandler.removeCallbacks(this.autoScrollRunnable);
+                                this.autoScrollHandler.postDelayed(this.autoScrollRunnable, 25L);
+                            }
+
+                            simulatedY = e.getY() + (float)this.hotspotBottomBoundEnd;
+                            simulatedFactor = (float)(this.hotspotBottomBoundStart + this.hotspotBottomBoundEnd);
+                            this.autoScrollVelocity = (int)(simulatedY - simulatedFactor) / 2;
+                        } else if (this.inTopHotspot || this.inBottomHotspot) {
+                            this.autoScrollHandler.removeCallbacks(this.autoScrollRunnable);
+                            this.inTopHotspot = false;
+                            this.inBottomHotspot = false;
+                        }
+                    }
+
+                    if (itemPosition != -1 && this.lastDraggedIndex != itemPosition) {
+                        this.lastDraggedIndex = itemPosition;
+                        if (this.minReached == -1) {
+                            this.minReached = this.lastDraggedIndex;
+                        }
+
+                        if (this.maxReached == -1) {
+                            this.maxReached = this.lastDraggedIndex;
+                        }
+
+                        if (this.lastDraggedIndex > this.maxReached) {
+                            this.maxReached = this.lastDraggedIndex;
+                        }
+
+                        if (this.lastDraggedIndex < this.minReached) {
+                            this.minReached = this.lastDraggedIndex;
+                        }
+
+                        if (this.adapter != null) {
+                            this.adapter.selectRange(this.initialSelection, this.lastDraggedIndex, this.minReached, this.maxReached);
+                        }
+
+                        if (this.initialSelection == this.lastDraggedIndex) {
+                            this.minReached = this.lastDraggedIndex;
+                            this.maxReached = this.lastDraggedIndex;
+                        }
+                    }
+
+                    return true;
+                }
+            }
+
+            return super.dispatchTouchEvent(e);
+        }
+    }
+}
diff --git a/SelectViewLib/src/main/java/com/yc/selectviewlib/SelectRecyclerViewAdapter.java b/SelectViewLib/src/main/java/com/yc/selectviewlib/SelectRecyclerViewAdapter.java
new file mode 100644
index 0000000..cfa753d
--- /dev/null
+++ b/SelectViewLib/src/main/java/com/yc/selectviewlib/SelectRecyclerViewAdapter.java
@@ -0,0 +1,193 @@
+package com.yc.selectviewlib;
+
+
+import android.os.Bundle;
+
+import androidx.annotation.CallSuper;
+import androidx.recyclerview.widget.RecyclerView;
+
+import java.util.ArrayList;
+
+public abstract class SelectRecyclerViewAdapter<VH extends RecyclerView.ViewHolder>
+        extends RecyclerView.Adapter<VH> {
+
+    private ArrayList<Integer> selectedIndices = new ArrayList<>();
+    private SelectionListener selectionListener;
+    private int lastCount = -1;
+    private int maxSelectionCount = -1;
+
+    private void fireSelectionListener() {
+        if (this.lastCount != this.selectedIndices.size()) {
+            this.lastCount = this.selectedIndices.size();
+            if (this.selectionListener != null) {
+                this.selectionListener.onDragSelectionChanged(this.lastCount);
+            }
+
+        }
+    }
+
+    protected SelectRecyclerViewAdapter() {
+    }
+
+    @CallSuper
+    public void onBindViewHolder(VH holder, int position) {
+        holder.itemView.setTag(holder);
+    }
+
+    public void setMaxSelectionCount(int maxSelectionCount) {
+        this.maxSelectionCount = maxSelectionCount;
+    }
+
+    public void setSelectionListener(SelectionListener selectionListener) {
+        this.selectionListener = selectionListener;
+    }
+
+    public void saveInstanceState(Bundle out) {
+        this.saveInstanceState("selected_indices", out);
+    }
+
+    public void saveInstanceState(String key, Bundle out) {
+        out.putSerializable(key, this.selectedIndices);
+    }
+
+    public void restoreInstanceState(Bundle in) {
+        this.restoreInstanceState("selected_indices", in);
+    }
+
+    public void restoreInstanceState(String key, Bundle in) {
+        if (in != null && in.containsKey(key)) {
+            this.selectedIndices = (ArrayList)in.getSerializable(key);
+            if (this.selectedIndices == null) {
+                this.selectedIndices = new ArrayList();
+            } else {
+                this.fireSelectionListener();
+            }
+        }
+
+    }
+
+    public final void setSelected(int index, boolean selected) {
+        if (!this.isIndexSelectable(index)) {
+            selected = false;
+        }
+
+        if (selected) {
+            if (!this.selectedIndices.contains(index) && (this.maxSelectionCount == -1 || this.selectedIndices.size() < this.maxSelectionCount)) {
+                this.selectedIndices.add(index);
+                this.notifyItemChanged(index);
+            }
+        } else if (this.selectedIndices.contains(index)) {
+            this.selectedIndices.remove(index);
+            this.notifyItemChanged(index);
+        }
+
+        this.fireSelectionListener();
+    }
+
+    public final boolean toggleSelected(int index) {
+        boolean selectedNow = false;
+        if (this.isIndexSelectable(index)) {
+            if (this.selectedIndices.contains(index)) {
+                this.selectedIndices.remove(index);
+            } else if (this.maxSelectionCount == -1 || this.selectedIndices.size() < this.maxSelectionCount) {
+                this.selectedIndices.add(index);
+                selectedNow = true;
+            }
+
+            this.notifyItemChanged(index);
+        }
+
+        this.fireSelectionListener();
+        return selectedNow;
+    }
+
+    public final void selectRange(int from, int to, int min, int max) {
+        int i;
+        if (from == to) {
+            for(i = min; i <= max; ++i) {
+                if (i != from) {
+                    this.setSelected(i, false);
+                }
+            }
+
+            this.fireSelectionListener();
+        } else {
+            if (to < from) {
+                for(i = to; i <= from; ++i) {
+                    this.setSelected(i, true);
+                }
+
+                if (min > -1 && min < to) {
+                    for(i = min; i < to; ++i) {
+                        if (i != from) {
+                            this.setSelected(i, false);
+                        }
+                    }
+                }
+
+                if (max > -1) {
+                    for(i = from + 1; i <= max; ++i) {
+                        this.setSelected(i, false);
+                    }
+                }
+            } else {
+                for(i = from; i <= to; ++i) {
+                    this.setSelected(i, true);
+                }
+
+                if (max > -1 && max > to) {
+                    for(i = to + 1; i <= max; ++i) {
+                        if (i != from) {
+                            this.setSelected(i, false);
+                        }
+                    }
+                }
+
+                if (min > -1) {
+                    for(i = min; i < from; ++i) {
+                        this.setSelected(i, false);
+                    }
+                }
+            }
+
+            this.fireSelectionListener();
+        }
+    }
+
+    protected boolean isIndexSelectable(int index) {
+        return true;
+    }
+
+    public final void selectAll() {
+        int max = this.getItemCount();
+        this.selectedIndices.clear();
+
+        for(int i = 0; i < max; ++i) {
+            if (this.isIndexSelectable(i)) {
+                this.selectedIndices.add(i);
+            }
+        }
+
+        this.notifyDataSetChanged();
+        this.fireSelectionListener();
+    }
+
+    public final void clearSelected() {
+        this.selectedIndices.clear();
+        this.notifyDataSetChanged();
+        this.fireSelectionListener();
+    }
+
+    public final int getSelectedCount() {
+        return this.selectedIndices.size();
+    }
+
+    public final Integer[] getSelectedIndices() {
+        return (Integer[])this.selectedIndices.toArray(new Integer[this.selectedIndices.size()]);
+    }
+
+    public final boolean isIndexSelected(int index) {
+        return this.selectedIndices.contains(index);
+    }
+}
+
diff --git a/SelectViewLib/src/main/java/com/yc/selectviewlib/SelectionListener.java b/SelectViewLib/src/main/java/com/yc/selectviewlib/SelectionListener.java
new file mode 100644
index 0000000..78f1e2a
--- /dev/null
+++ b/SelectViewLib/src/main/java/com/yc/selectviewlib/SelectionListener.java
@@ -0,0 +1,5 @@
+package com.yc.selectviewlib;
+
+public interface SelectionListener {
+    void onDragSelectionChanged(int var1);
+}
diff --git a/SelectViewLib/src/main/res/values/attrs.xml b/SelectViewLib/src/main/res/values/attrs.xml
new file mode 100644
index 0000000..5f2f331
--- /dev/null
+++ b/SelectViewLib/src/main/res/values/attrs.xml
@@ -0,0 +1,9 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <declare-styleable name="SelectRecyclerView">
+        <attr format="dimension" name="spotHeight"/>
+        <attr format="boolean" name="scrollEnabled"/>
+        <attr format="dimension" name="spot_offsetTop"/>
+        <attr format="dimension" name="spot_offsetBottom"/>
+    </declare-styleable>
+</resources>
\ No newline at end of file
diff --git a/SelectViewLib/src/main/res/values/dimens.xml b/SelectViewLib/src/main/res/values/dimens.xml
new file mode 100644
index 0000000..d516b24
--- /dev/null
+++ b/SelectViewLib/src/main/res/values/dimens.xml
@@ -0,0 +1,4 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <dimen name="spotHeight">56dp</dimen>
+</resources>
\ No newline at end of file
diff --git a/SelectViewLib/src/test/java/com/yc/selectviewlib/ExampleUnitTest.java b/SelectViewLib/src/test/java/com/yc/selectviewlib/ExampleUnitTest.java
new file mode 100644
index 0000000..9e9db6e
--- /dev/null
+++ b/SelectViewLib/src/test/java/com/yc/selectviewlib/ExampleUnitTest.java
@@ -0,0 +1,17 @@
+package com.yc.selectviewlib;
+
+import org.junit.Test;
+
+import static org.junit.Assert.*;
+
+/**
+ * Example local unit test, which will execute on the development machine (host).
+ *
+ * @see <a href="http://d.android.com/tools/testing">Testing documentation</a>
+ */
+public class ExampleUnitTest {
+    @Test
+    public void addition_isCorrect() {
+        assertEquals(4, 2 + 2);
+    }
+}
\ No newline at end of file
diff --git a/ShopCatLib/.gitignore b/ShopCatLib/.gitignore
new file mode 100644
index 0000000..796b96d
--- /dev/null
+++ b/ShopCatLib/.gitignore
@@ -0,0 +1 @@
+/build
diff --git a/ShopCatLib/build.gradle b/ShopCatLib/build.gradle
new file mode 100644
index 0000000..139e254
--- /dev/null
+++ b/ShopCatLib/build.gradle
@@ -0,0 +1,30 @@
+apply plugin: 'com.android.library'
+
+android {
+    compileSdkVersion 29
+    buildToolsVersion "29.0.0"
+
+    defaultConfig {
+        minSdkVersion 17
+        targetSdkVersion 29
+        versionCode 1
+        versionName "1.0"
+
+        testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
+
+    }
+
+    buildTypes {
+        release {
+            minifyEnabled false
+            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
+        }
+    }
+
+}
+
+dependencies {
+    implementation fileTree(dir: 'libs', include: ['*.jar'])
+    implementation 'androidx.appcompat:appcompat:1.2.0'
+    implementation 'androidx.recyclerview:recyclerview:1.1.0'
+}
diff --git a/ShopCatLib/proguard-rules.pro b/ShopCatLib/proguard-rules.pro
new file mode 100644
index 0000000..f1b4245
--- /dev/null
+++ b/ShopCatLib/proguard-rules.pro
@@ -0,0 +1,21 @@
+# Add project specific ProGuard rules here.
+# You can control the set of applied configuration files using the
+# proguardFiles setting in build.gradle.
+#
+# For more details, see
+#   http://developer.android.com/guide/developing/tools/proguard.html
+
+# If your project uses WebView with JS, uncomment the following
+# and specify the fully qualified class name to the JavaScript interface
+# class:
+#-keepclassmembers class fqcn.of.javascript.interface.for.webview {
+#   public *;
+#}
+
+# Uncomment this to preserve the line number information for
+# debugging stack traces.
+#-keepattributes SourceFile,LineNumberTable
+
+# If you keep the line number information, uncomment this to
+# hide the original source file name.
+#-renamesourcefileattribute SourceFile
diff --git a/ShopCatLib/src/main/AndroidManifest.xml b/ShopCatLib/src/main/AndroidManifest.xml
new file mode 100644
index 0000000..48652d5
--- /dev/null
+++ b/ShopCatLib/src/main/AndroidManifest.xml
@@ -0,0 +1,2 @@
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    package="com.ycbjie.ycshopcatlib" />
diff --git a/ShopCatLib/src/main/java/com/ycbjie/ycshopcatlib/VerticalListView.java b/ShopCatLib/src/main/java/com/ycbjie/ycshopcatlib/VerticalListView.java
new file mode 100644
index 0000000..c209e36
--- /dev/null
+++ b/ShopCatLib/src/main/java/com/ycbjie/ycshopcatlib/VerticalListView.java
@@ -0,0 +1,85 @@
+package com.ycbjie.ycshopcatlib;
+
+import android.content.Context;
+import android.util.AttributeSet;
+import android.view.MotionEvent;
+import android.widget.ExpandableListView;
+
+
+/**
+ * <pre>
+ *     @author yangchong
+ *     blog  :
+ *     time  : 2018/6/21.
+ *     desc  : 当ListView在最顶部或者最底部的时候，不消费事件
+ *     revise:
+ * </pre>
+ */
+public class VerticalListView extends ExpandableListView {
+
+    private float downX;
+    private float downY;
+
+    public VerticalListView(Context context) {
+        this(context, null);
+    }
+
+    public VerticalListView(Context context, AttributeSet attrs) {
+        this(context, attrs, android.R.attr.listViewStyle);
+    }
+
+    public VerticalListView(Context context, AttributeSet attrs, int defStyleAttr) {
+        super(context, attrs, defStyleAttr);
+    }
+
+    @Override
+    public boolean dispatchTouchEvent(MotionEvent ev) {
+        switch (ev.getAction()) {
+            case MotionEvent.ACTION_DOWN:
+                downX = ev.getX();
+                downY = ev.getY();
+                //如果滑动到了最底部，就允许继续向上滑动加载下一页，否者不允许
+                getParent().requestDisallowInterceptTouchEvent(true);
+                break;
+            case MotionEvent.ACTION_MOVE:
+                float dx = ev.getX() - downX;
+                float dy = ev.getY() - downY;
+                boolean allowParentTouchEvent;
+                if (Math.abs(dy) > Math.abs(dx)) {
+                    //垂直方向滑动
+                    if (dy > 0) {
+                        //位于顶部时下拉，让父View消费事件
+                        allowParentTouchEvent = isTop();
+                    } else {
+                        //位于底部时上拉，让父View消费事件
+                        allowParentTouchEvent = isBottom();
+                    }
+                } else {
+                    //水平方向滑动
+                    allowParentTouchEvent = true;
+                }
+                getParent().requestDisallowInterceptTouchEvent(!allowParentTouchEvent);
+        }
+        return super.dispatchTouchEvent(ev);
+    }
+
+    public boolean isTop() {
+        if (getChildCount() <= 0) return false;
+        final int firstTop = getChildAt(0).getTop();
+        return getFirstVisiblePosition() == 0 && firstTop >= getListPaddingTop();
+    }
+
+    public boolean isBottom() {
+        final int childCount = getChildCount();
+        if (childCount <= 0) return false;
+        final int itemsCount = getCount();
+        final int firstPosition = getFirstVisiblePosition();
+        final int lastPosition = firstPosition + childCount;
+        final int lastBottom = getChildAt(childCount - 1).getBottom();
+        return lastPosition >= itemsCount && lastBottom <= getHeight() - getListPaddingBottom();
+    }
+
+    public void goTop() {
+        setSelection(0);
+    }
+}
diff --git a/ShopCatLib/src/main/java/com/ycbjie/ycshopcatlib/VerticalRecyclerView.java b/ShopCatLib/src/main/java/com/ycbjie/ycshopcatlib/VerticalRecyclerView.java
new file mode 100644
index 0000000..83f161e
--- /dev/null
+++ b/ShopCatLib/src/main/java/com/ycbjie/ycshopcatlib/VerticalRecyclerView.java
@@ -0,0 +1,137 @@
+package com.ycbjie.ycshopcatlib;
+
+import android.content.Context;
+import android.util.AttributeSet;
+import android.view.MotionEvent;
+
+import androidx.recyclerview.widget.GridLayoutManager;
+import androidx.recyclerview.widget.LinearLayoutManager;
+import androidx.recyclerview.widget.RecyclerView;
+import androidx.recyclerview.widget.StaggeredGridLayoutManager;
+
+
+/**
+ * <pre>
+ *     @author yangchong
+ *     blog  :
+ *     time  : 2018/6/21.
+ *     desc  : 当RecyclerView在最顶部或者最底部的时候，不消费事件
+ *     revise:
+ * </pre>
+ */
+public class VerticalRecyclerView extends RecyclerView {
+
+    private float downX;
+    private float downY;
+    /** 第一个可见的item的位置 */
+    private int firstVisibleItemPosition;
+    /** 第一个的位置 */
+    private int[] firstPositions;
+    /** 最后一个可见的item的位置 */
+    private int lastVisibleItemPosition;
+    /** 最后一个的位置 */
+    private int[] lastPositions;
+    private boolean isTop;
+    private boolean isBottom;
+
+    public VerticalRecyclerView(Context context) {
+        this(context, null);
+    }
+
+    public VerticalRecyclerView(Context context, AttributeSet attrs) {
+        this(context, attrs, 0);
+    }
+
+    public VerticalRecyclerView(Context context, AttributeSet attrs, int defStyle) {
+        super(context, attrs, defStyle);
+    }
+
+    @Override
+    public boolean dispatchTouchEvent(MotionEvent ev) {
+
+        RecyclerView.LayoutManager layoutManager = getLayoutManager();
+        if (layoutManager != null) {
+            if (layoutManager instanceof GridLayoutManager) {
+                lastVisibleItemPosition = ((GridLayoutManager) layoutManager).findLastVisibleItemPosition();
+                firstVisibleItemPosition = ((GridLayoutManager) layoutManager).findFirstVisibleItemPosition();
+            } else if (layoutManager instanceof LinearLayoutManager) {
+                lastVisibleItemPosition = ((LinearLayoutManager) layoutManager).findLastVisibleItemPosition();
+                firstVisibleItemPosition = ((LinearLayoutManager) layoutManager).findFirstVisibleItemPosition();
+            } else if (layoutManager instanceof StaggeredGridLayoutManager) {
+                StaggeredGridLayoutManager staggeredGridLayoutManager = (StaggeredGridLayoutManager) layoutManager;
+                if (lastPositions == null) {
+                    lastPositions = new int[staggeredGridLayoutManager.getSpanCount()];
+                    firstPositions = new int[staggeredGridLayoutManager.getSpanCount()];
+                }
+                staggeredGridLayoutManager.findLastVisibleItemPositions(lastPositions);
+                staggeredGridLayoutManager.findFirstVisibleItemPositions(firstPositions);
+                lastVisibleItemPosition = findMax(lastPositions);
+                firstVisibleItemPosition = findMin(firstPositions);
+            }
+        } else {
+            throw new RuntimeException("Unsupported LayoutManager used. Valid ones are LinearLayoutManager, GridLayoutManager and StaggeredGridLayoutManager");
+        }
+
+        switch (ev.getAction()) {
+            case MotionEvent.ACTION_DOWN:
+                downX = ev.getX();
+                downY = ev.getY();
+                //如果滑动到了最底部，就允许继续向上滑动加载下一页，否者不允许
+                getParent().requestDisallowInterceptTouchEvent(true);
+                break;
+            case MotionEvent.ACTION_MOVE:
+                float dx = ev.getX() - downX;
+                float dy = ev.getY() - downY;
+                boolean allowParentTouchEvent;
+                if (Math.abs(dy) > Math.abs(dx)) {
+                    if (dy > 0) {
+                        //位于顶部时下拉，让父View消费事件
+                        allowParentTouchEvent = isTop = firstVisibleItemPosition == 0 && getChildAt(0).getTop() >= 0;
+                    } else {
+                        //位于底部时上拉，让父View消费事件
+                        int visibleItemCount = layoutManager.getChildCount();
+                        int totalItemCount = layoutManager.getItemCount();
+                        allowParentTouchEvent = isBottom = visibleItemCount > 0 && (lastVisibleItemPosition) >= totalItemCount - 1 && getChildAt(getChildCount() - 1).getBottom() <= getHeight();
+                    }
+                } else {
+                    //水平方向滑动
+                    allowParentTouchEvent = true;
+                }
+                getParent().requestDisallowInterceptTouchEvent(!allowParentTouchEvent);
+        }
+        return super.dispatchTouchEvent(ev);
+
+    }
+
+    private int findMax(int[] lastPositions) {
+        int max = lastPositions[0];
+        for (int value : lastPositions) {
+            if (value >= max) {
+                max = value;
+            }
+        }
+        return max;
+    }
+
+    private int findMin(int[] firstPositions) {
+        int min = firstPositions[0];
+        for (int value : firstPositions) {
+            if (value < min) {
+                min = value;
+            }
+        }
+        return min;
+    }
+
+    public boolean isTop() {
+        return isTop;
+    }
+
+    public boolean isBottom() {
+        return isBottom;
+    }
+
+    public void goTop() {
+        scrollToPosition(0);
+    }
+}
diff --git a/ShopCatLib/src/main/res/values/strings.xml b/ShopCatLib/src/main/res/values/strings.xml
new file mode 100644
index 0000000..9c4b05e
--- /dev/null
+++ b/ShopCatLib/src/main/res/values/strings.xml
@@ -0,0 +1,3 @@
+<resources>
+    <string name="app_name">YCShopCatLib</string>
+</resources>
diff --git a/app/build.gradle b/app/build.gradle
index 240cf6d..ba3f671 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -31,6 +31,7 @@ dependencies {
     //implementation 'org.yczbj:YCRefreshViewLib:2.5.8'
     implementation project(path: ':SlideViewLib')
     implementation project(path: ':PhotoCoverLib')
+    implementation project(path: ':SelectViewLib')
     implementation 'cn.yc:GroupAdapterLib:1.0.1'
     //glide
     implementation 'cn.yc:zoomImageLib:1.0.1'
diff --git a/app/src/main/AndroidManifest.xml b/app/src/main/AndroidManifest.xml
index 69cb7a3..ced9576 100644
--- a/app/src/main/AndroidManifest.xml
+++ b/app/src/main/AndroidManifest.xml
@@ -49,6 +49,7 @@
         <activity android:name=".cover.CoverActivity"/>
         <activity android:name=".cover.CoverFirstActivity"/>
         <activity android:name=".cover.CoverSecondActivity"/>
+        <activity android:name=".select.SelectFollowActivity"/>
     </application>
 
 </manifest>
\ No newline at end of file
diff --git a/app/src/main/java/org/yczbj/ycrefreshview/MainActivity.java b/app/src/main/java/org/yczbj/ycrefreshview/MainActivity.java
index 58002dc..560eac9 100644
--- a/app/src/main/java/org/yczbj/ycrefreshview/MainActivity.java
+++ b/app/src/main/java/org/yczbj/ycrefreshview/MainActivity.java
@@ -16,6 +16,7 @@
 import org.yczbj.ycrefreshview.horizontal.FourHorizontalActivity;
 import org.yczbj.ycrefreshview.refresh.RefreshAndMoreActivity3;
 import org.yczbj.ycrefreshview.scroll.ScrollActivity;
+import org.yczbj.ycrefreshview.select.SelectFollowActivity;
 import org.yczbj.ycrefreshview.slide.SlideViewActivity;
 import org.yczbj.ycrefreshview.staggered.SevenStaggeredActivity;
 import org.yczbj.ycrefreshview.staggered.StageredLoadMoreActivity;
@@ -75,6 +76,7 @@ private void init() {
         findViewById(R.id.tv_16).setOnClickListener(this);
         findViewById(R.id.tv_17).setOnClickListener(this);
         findViewById(R.id.tv_18).setOnClickListener(this);
+        findViewById(R.id.tv_19).setOnClickListener(this);
     }
 
 
@@ -161,6 +163,9 @@ public void onClick(View view) {
             case R.id.tv_18:
                 startActivity(new Intent(this, CoverActivity.class));
                 break;
+            case R.id.tv_19:
+                startActivity(new Intent(this, SelectFollowActivity.class));
+                break;
             default:
                 break;
         }
diff --git a/app/src/main/java/org/yczbj/ycrefreshview/select/SelectFollowActivity.java b/app/src/main/java/org/yczbj/ycrefreshview/select/SelectFollowActivity.java
new file mode 100644
index 0000000..0916158
--- /dev/null
+++ b/app/src/main/java/org/yczbj/ycrefreshview/select/SelectFollowActivity.java
@@ -0,0 +1,140 @@
+package org.yczbj.ycrefreshview.select;
+
+import android.os.Bundle;
+import android.view.View;
+import android.widget.FrameLayout;
+import android.widget.TextView;
+
+
+import androidx.annotation.Nullable;
+import androidx.appcompat.app.AppCompatActivity;
+import androidx.recyclerview.widget.GridLayoutManager;
+
+import com.yc.selectviewlib.SelectRecyclerView;
+
+import org.yczbj.ycrefreshview.R;
+import org.yczbj.ycrefreshviewlib.item.SpaceViewItemLine;
+
+import java.util.ArrayList;
+import java.util.List;
+
+
+/**
+ * <pre>
+ *     @author yangchong
+ *     blog  : https://github.com/yangchong211
+ *     time  : 2016/03/22
+ *     desc  : 关注点页面
+ *     revise: https://github.com/yangchong211/YCRecycleView
+ * </pre>
+ */
+public class SelectFollowActivity extends AppCompatActivity implements View.OnClickListener {
+
+    FrameLayout llTitleMenu;
+    TextView toolbarTitle;
+    TextView tvTitleRight;
+    SelectRecyclerView selectView;
+    TextView tvClean;
+    TextView tvStart;
+
+    private SelectFollowAdapter adapter;
+    private List<SelectPoint> lists = new ArrayList<>();
+
+    @Override
+    protected void onCreate(@Nullable Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.activity_select_follow);
+        initView();
+        initListener();
+        initData();
+    }
+
+
+    public void initView() {
+        initFindViewById();
+        initToolBar();
+        initRecycleView();
+    }
+
+    private void initFindViewById() {
+        llTitleMenu = findViewById(R.id.ll_title_menu);
+        toolbarTitle = findViewById(R.id.toolbar_title);
+        tvTitleRight = findViewById(R.id.tv_title_right);
+        selectView = findViewById(R.id.select_view);
+        tvClean = findViewById(R.id.tv_clean);
+        tvStart = findViewById(R.id.tv_start);
+    }
+
+
+    private void initToolBar() {
+        toolbarTitle.setText("关注点");
+        tvTitleRight.setVisibility(View.VISIBLE);
+        tvTitleRight.setText("跳过");
+    }
+
+
+    public void initListener() {
+        llTitleMenu.setOnClickListener(this);
+        tvTitleRight.setOnClickListener(this);
+        tvClean.setOnClickListener(this);
+        tvStart.setOnClickListener(this);
+        adapter.setOnItemClickListener(new SelectFollowAdapter.OnListItemClickListener() {
+            @Override
+            public void onItemClick(View view, int position) {
+                if (adapter.data != null && adapter.data.size() > 0) {
+                    adapter.toggleSelected(position);
+                }
+            }
+        });
+    }
+
+    public void initData() {
+        List<SelectPoint> list = new ArrayList<>();
+        String[] titles = this.getResources().getStringArray(R.array.select_follow);
+        for(int a=0 ; a<titles.length ; a++){
+            SelectPoint selectPoint = new SelectPoint();
+            selectPoint.setName(titles[a]);
+            list.add(selectPoint);
+        }
+        refreshData(list);
+    }
+
+    @Override
+    public void onClick(View v) {
+        switch (v.getId()) {
+            case R.id.ll_title_menu:
+                break;
+            case R.id.tv_title_right:
+                break;
+            case R.id.tv_clean:
+                if(adapter!=null && adapter.data!=null){
+                    adapter.clearSelected();
+                }
+                break;
+            default:
+                break;
+        }
+    }
+
+
+    private void initRecycleView() {
+        selectView.setLayoutManager(new GridLayoutManager(this, 4));
+        adapter = new SelectFollowAdapter(this, lists);
+        selectView.setAdapter(adapter);
+        //下划线
+        SpaceViewItemLine itemDecoration = new SpaceViewItemLine(10);
+        itemDecoration.setPaddingEdgeSide(false);
+        itemDecoration.setPaddingStart(false);
+        itemDecoration.setPaddingHeaderFooter(false);
+        selectView.addItemDecoration(itemDecoration);
+    }
+
+
+    public void refreshData(List<SelectPoint> list) {
+        lists.clear();
+        lists.addAll(list);
+        adapter.notifyDataSetChanged();
+    }
+
+
+}
diff --git a/app/src/main/java/org/yczbj/ycrefreshview/select/SelectFollowAdapter.java b/app/src/main/java/org/yczbj/ycrefreshview/select/SelectFollowAdapter.java
new file mode 100644
index 0000000..00c5397
--- /dev/null
+++ b/app/src/main/java/org/yczbj/ycrefreshview/select/SelectFollowAdapter.java
@@ -0,0 +1,96 @@
+package org.yczbj.ycrefreshview.select;
+
+import android.annotation.SuppressLint;
+import android.app.Activity;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.TextView;
+
+import androidx.recyclerview.widget.RecyclerView;
+
+import com.yc.selectviewlib.SelectRecyclerViewAdapter;
+
+import org.yczbj.ycrefreshview.R;
+
+import java.util.List;
+
+
+/**
+ * <pre>
+ *     @author yangchong
+ *     blog  : https://github.com/yangchong211
+ *     time  : 2016/03/22
+ *     desc  : 关注点页面适配器
+ *     revise:
+ * </pre>
+ */
+public class SelectFollowAdapter extends SelectRecyclerViewAdapter<SelectFollowAdapter.MyViewHolder> {
+
+    public Activity activity;
+    public List<SelectPoint> data;
+
+    public SelectFollowAdapter(Activity activity, List<SelectPoint> data) {
+        this.activity = activity;
+        this.data = data;
+    }
+
+
+    @Override
+    public MyViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
+        View view = LayoutInflater.from(activity).inflate(R.layout.tag_select_follow, parent, false);
+        return new MyViewHolder(view , mItemClickListener);
+    }
+
+
+    @SuppressLint("MissingSuperCall")
+    @Override
+    public void onBindViewHolder(MyViewHolder holder, int position) {
+        if(data!=null && data.size()>0){
+            holder.tvName.setText(data.get(position).getName());
+            if(isIndexSelected(position)){
+                holder.tvName.setBackgroundResource(R.drawable.shape_btn_color_bg_press);
+                holder.tvName.setTextColor(activity.getResources().getColor(R.color.colorAccent));
+            }else {
+                holder.tvName.setBackgroundResource(R.drawable.shape_btn_color_bg);
+                holder.tvName.setTextColor(activity.getResources().getColor(R.color.color_666666));
+            }
+        }
+    }
+
+
+    @Override
+    public int getItemCount() {
+        return data!=null ? data.size() : 0;
+    }
+
+
+    class MyViewHolder extends  RecyclerView.ViewHolder{
+
+        private  OnListItemClickListener listener;
+        TextView tvName;
+        MyViewHolder(View itemView , OnListItemClickListener mItemClickListener) {
+            super(itemView);
+            tvName = itemView.findViewById(R.id.tv_name);
+            this.listener = mItemClickListener;
+            itemView.setOnClickListener(new View.OnClickListener() {
+                @Override
+                public void onClick(View v) {
+                    listener.onItemClick(v,getAdapterPosition());
+                }
+            });
+        }
+
+    }
+
+    private OnListItemClickListener mItemClickListener;
+    public void setOnItemClickListener(OnListItemClickListener listener) {
+        this.mItemClickListener = listener;
+    }
+
+    public interface OnListItemClickListener {
+
+        void onItemClick(View view, int position);
+
+    }
+}
diff --git a/app/src/main/java/org/yczbj/ycrefreshview/select/SelectPoint.java b/app/src/main/java/org/yczbj/ycrefreshview/select/SelectPoint.java
new file mode 100644
index 0000000..ce2391e
--- /dev/null
+++ b/app/src/main/java/org/yczbj/ycrefreshview/select/SelectPoint.java
@@ -0,0 +1,42 @@
+package org.yczbj.ycrefreshview.select;
+
+
+public class SelectPoint {
+
+    private int id;
+    private String name;
+    private int index;
+    private String logo;
+
+    public int getId() {
+        return id;
+    }
+
+    public void setId(int id) {
+        this.id = id;
+    }
+
+    public String getName() {
+        return name;
+    }
+
+    public void setName(String name) {
+        this.name = name;
+    }
+
+    public int getIndex() {
+        return index;
+    }
+
+    public void setIndex(int index) {
+        this.index = index;
+    }
+
+    public String getLogo() {
+        return logo;
+    }
+
+    public void setLogo(String logo) {
+        this.logo = logo;
+    }
+}
diff --git a/app/src/main/res/drawable/shape_btn_color_bg.xml b/app/src/main/res/drawable/shape_btn_color_bg.xml
new file mode 100644
index 0000000..e4e4262
--- /dev/null
+++ b/app/src/main/res/drawable/shape_btn_color_bg.xml
@@ -0,0 +1,19 @@
+<?xml version="1.0" encoding="utf-8"?>
+<shape
+    xmlns:android="http://schemas.android.com/apk/res/android"
+       android:shape="rectangle">
+    <!-- 填充颜色 -->
+    <solid android:color="#E5E5E5" />
+    <!-- 线的宽度，颜色灰色 -->
+    <stroke
+        android:width="0dp"
+        android:color="#E5E5E5" />
+    <!-- 矩形的圆角半径 -->
+    <corners android:radius="20dp" />
+    <padding
+        android:bottom="1dp"
+        android:left="1dp"
+        android:right="1dp"
+        android:top="1dp" />
+
+</shape>
\ No newline at end of file
diff --git a/app/src/main/res/drawable/shape_btn_color_bg_press.xml b/app/src/main/res/drawable/shape_btn_color_bg_press.xml
new file mode 100644
index 0000000..5e7b974
--- /dev/null
+++ b/app/src/main/res/drawable/shape_btn_color_bg_press.xml
@@ -0,0 +1,18 @@
+<?xml version="1.0" encoding="utf-8"?>
+<shape xmlns:android="http://schemas.android.com/apk/res/android"
+       android:shape="rectangle">
+    <!-- 填充颜色 -->
+    <solid android:color="#666666" />
+    <!-- 线的宽度，颜色灰色 -->
+    <stroke
+        android:width="0dp"
+        android:color="#E5E5E5" />
+    <!-- 矩形的圆角半径 -->
+    <corners android:radius="20dp" />
+    <padding
+        android:bottom="1dp"
+        android:left="1dp"
+        android:right="1dp"
+        android:top="1dp" />
+
+</shape>
\ No newline at end of file
diff --git a/app/src/main/res/layout/activity_main.xml b/app/src/main/res/layout/activity_main.xml
index aadd07a..3a703fc 100644
--- a/app/src/main/res/layout/activity_main.xml
+++ b/app/src/main/res/layout/activity_main.xml
@@ -284,6 +284,14 @@
             android:background="@android:color/darker_gray"
             android:text="18.画廊浏览相册"/>
 
+        <TextView
+            android:id="@+id/tv_19"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:padding="10dp"
+            android:layout_marginTop="10dp"
+            android:background="@android:color/darker_gray"
+            android:text="19.recycler实现item多选和单选"/>
     </LinearLayout>
 
 
diff --git a/app/src/main/res/layout/activity_select_follow.xml b/app/src/main/res/layout/activity_select_follow.xml
new file mode 100644
index 0000000..2949492
--- /dev/null
+++ b/app/src/main/res/layout/activity_select_follow.xml
@@ -0,0 +1,53 @@
+<?xml version="1.0" encoding="utf-8"?>
+<LinearLayout
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    android:orientation="vertical"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent">
+
+    <include layout="@layout/base_tool_bar"/>
+
+    <com.yc.selectviewlib.SelectRecyclerView
+        android:id="@+id/select_view"
+        android:layout_width="match_parent"
+        android:layout_height="0dp"
+        android:layout_weight="1"
+        android:horizontalSpacing="8dp"
+        android:padding="10dp"
+        android:verticalSpacing="8dp"
+        android:scrollbars="vertical"/>
+
+    <LinearLayout
+        android:layout_width="match_parent"
+        android:layout_height="80dp"
+        android:orientation="horizontal"
+        android:gravity="center"
+        android:background="@color/color_f9f9f9">
+        <TextView
+            android:id="@+id/tv_clean"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:text="清除选择"
+            android:gravity="center"
+            android:layout_gravity="center"
+            android:paddingRight="30dp"
+            android:paddingLeft="30dp"
+            android:paddingBottom="10dp"
+            android:paddingTop="10dp"
+            android:textSize="18sp"/>
+        <TextView
+            android:id="@+id/tv_start"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:text="现在开启"
+            android:gravity="center"
+            android:layout_marginLeft="20dp"
+            android:paddingRight="30dp"
+            android:paddingLeft="30dp"
+            android:paddingBottom="10dp"
+            android:paddingTop="10dp"
+            android:layout_gravity="center"
+            android:textSize="18sp"/>
+    </LinearLayout>
+
+</LinearLayout>
\ No newline at end of file
diff --git a/app/src/main/res/layout/tag_select_follow.xml b/app/src/main/res/layout/tag_select_follow.xml
new file mode 100644
index 0000000..5bc4a37
--- /dev/null
+++ b/app/src/main/res/layout/tag_select_follow.xml
@@ -0,0 +1,18 @@
+<?xml version="1.0" encoding="utf-8"?>
+<LinearLayout
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="match_parent"
+    android:layout_height="wrap_content"
+    android:layout_marginTop="8dp">
+
+    <TextView
+        android:id="@+id/tv_name"
+        android:layout_width="match_parent"
+        android:layout_height="35dp"
+        android:gravity="center"
+        android:background="@drawable/shape_btn_color_bg"
+        android:textSize="12dp"
+        android:text="选择标签">
+    </TextView>
+
+</LinearLayout>
\ No newline at end of file
diff --git a/app/src/main/res/values/array.xml b/app/src/main/res/values/array.xml
index 7bebcd1..c34b6ae 100644
--- a/app/src/main/res/values/array.xml
+++ b/app/src/main/res/values/array.xml
@@ -93,4 +93,46 @@
 
     </integer-array>
 
+
+    <!--数据页图片对应的位子-->
+    <string-array name="select_follow">
+        <item>快递</item>
+        <item>天气</item>
+        <item>记事</item>
+        <item>工商</item>
+        <item>画廊</item>
+        <item>身份</item>
+        <item>人脸</item>
+        <item>归属地</item>
+        <item>空气</item>
+        <item>今日</item>
+        <item>翻译</item>
+        <item>缴费</item>
+        <item>快递</item>
+        <item>天气</item>
+        <item>记事</item>
+        <item>工商</item>
+        <item>画廊</item>
+        <item>身份</item>
+        <item>人脸</item>
+        <item>归属地</item>
+        <item>空气</item>
+        <item>今日</item>
+        <item>翻译</item>
+        <item>缴费</item>
+        <item>快递</item>
+        <item>天气</item>
+        <item>记事</item>
+        <item>工商</item>
+        <item>画廊</item>
+        <item>身份</item>
+        <item>人脸</item>
+        <item>归属地</item>
+        <item>空气</item>
+        <item>今日</item>
+        <item>翻译</item>
+        <item>缴费</item>
+    </string-array>
+
+
 </resources>
\ No newline at end of file
diff --git a/settings.gradle b/settings.gradle
index 46c6fdf..48218d4 100644
--- a/settings.gradle
+++ b/settings.gradle
@@ -1,3 +1,5 @@
 include ':app', ':RefreshViewLib'
 include ':SlideViewLib'
 include ':PhotoCoverLib'
+include ':ShopCatLib'
+include ':SelectViewLib'