add list style

build.gradle

@@ -5,7 +5,7 @@ buildscript {
         jcenter()
     }
     dependencies {
-        classpath 'com.android.tools.build:gradle:2.2.2'
+        classpath 'com.android.tools.build:gradle:2.2.3'
         // NOTE: Do not place your application dependencies here; they belong
         // in the individual module build.gradle files
     }

dragrecyclerview/src/main/java/cn/cyan/dragrecyclerview/DragRecyclerView.java

@@ -14,17 +14,13 @@
 import android.view.animation.ScaleAnimation;
 
 /**
- * Desc : 可拖动recyclerView
- * User : Cyan([email protected])
- * New  : 2016/9/21 14:27
+ * User : Cyan([email protected])
+ * Date : 2016/9/28
  */
 public class DragRecyclerView extends RecyclerView {
 
-    /* 适配器 */
     private OnItemChangeListener adapter;
-    /* 是否可拖动 */
     private boolean dragEnable;
-    /* 是否显示拖动动画 */
     private boolean showDragAnimation;
 
 
@@ -50,9 +46,6 @@ private void init(Context context, AttributeSet attrs) {
         }
     }
 
-    ///////////////////////////////////////////////////////////////////////////
-    // 拖动监听
-    ///////////////////////////////////////////////////////////////////////////
     ItemTouchHelper touchHelper = new ItemTouchHelper(new ItemTouchHelper.Callback() {
         @Override
         public int getMovementFlags(RecyclerView recyclerView, RecyclerView.ViewHolder viewHolder) {
@@ -71,9 +64,7 @@ public int getMovementFlags(RecyclerView recyclerView, RecyclerView.ViewHolder v
 
         @Override
         public boolean onMove(RecyclerView recyclerView, RecyclerView.ViewHolder viewHolder, RecyclerView.ViewHolder target) {
-            // 原位置
             int oldPosition = viewHolder.getAdapterPosition();
-            // 目标位置
             int targetPosition = target.getAdapterPosition();
             adapter.onItemMoved(oldPosition, targetPosition);
             return false;
@@ -91,14 +82,12 @@ public boolean isItemViewSwipeEnabled() {
 
         @Override
         public boolean isLongPressDragEnabled() {
-            // 禁用,使用自定义触摸监听
             return false;
         }
 
         @Override
         public void onChildDraw(Canvas c, RecyclerView recyclerView, ViewHolder viewHolder, float dX, float dY, int actionState, boolean isCurrentlyActive) {
             if (actionState == ItemTouchHelper.ACTION_STATE_SWIPE) {
-                //滑动时改变Item的透明度
                 final float alpha = 1 - Math.abs(dX) / (float) viewHolder.itemView.getWidth();
                 viewHolder.itemView.setAlpha(alpha);
                 viewHolder.itemView.setTranslationX(dX);
@@ -110,10 +99,7 @@ public void onChildDraw(Canvas c, RecyclerView recyclerView, ViewHolder viewHold
         @Override
         public void onSelectedChanged(RecyclerView.ViewHolder viewHolder, int actionState) {
             if (actionState != ItemTouchHelper.ACTION_STATE_IDLE) {
-                /** item已经被拽起(托起状态) */
-                // 设置背景
                 viewHolder.itemView.setBackgroundColor(Color.LTGRAY);
-                // 放大动画
                 if (showDragAnimation) zoomView(viewHolder.itemView);
             }
             super.onSelectedChanged(viewHolder, actionState);
@@ -122,68 +108,45 @@ public void onSelectedChanged(RecyclerView.ViewHolder viewHolder, int actionStat
         @Override
         public void clearView(RecyclerView recyclerView, ViewHolder viewHolder) {
             super.clearView(recyclerView, viewHolder);
-            // 还原item的样式
             viewHolder.itemView.setAlpha(1.0f);
             viewHolder.itemView.setBackgroundColor(Color.WHITE);
-            // 缩放动画
             if (showDragAnimation) revertView(viewHolder.itemView);
         }
 
         @Override
         public boolean canDropOver(RecyclerView recyclerView, ViewHolder current, ViewHolder target) {
-            /** 被禁用的位置不会被挤兑 */
-            return adapter.onItemDrag(target.getAdapterPosition());
+            return adapter.onItemDrop(target.getAdapterPosition());
         }
     });
 
-    /* 放大动画 */
     private ScaleAnimation zoomAnimation = new ScaleAnimation(1.0f, 1.1f, 1.0f, 1.1f, Animation.RELATIVE_TO_SELF, 0.5f, Animation.RELATIVE_TO_SELF, 0.5f);
-    /* 还原动画 */
     private ScaleAnimation revertAnimation = new ScaleAnimation(1.1f, 1.0f, 1.1f, 1.0f, Animation.RELATIVE_TO_SELF, 0.5f, Animation.RELATIVE_TO_SELF, 0.5f);
 
-    /**
-     * 放大
-     *
-     * @param v 视图
-     */
     private void zoomView(final View v) {
         v.setAnimation(zoomAnimation);
-        // 动画执行完停留位置
         zoomAnimation.setFillAfter(true);
-        // 动画持续时间
         zoomAnimation.setDuration(200);
-        // 开始
         zoomAnimation.start();
     }
 
-    /**
-     * 还原
-     *
-     * @param v 视图
-     */
     private void revertView(final View v) {
         v.setAnimation(revertAnimation);
-        // 动画执行完停留位置
         revertAnimation.setFillAfter(true);
-        // 动画持续时间
         revertAnimation.setDuration(400);
-        // 执行监听
         revertAnimation.setAnimationListener(new Animation.AnimationListener() {
             @Override
             public void onAnimationStart(Animation animation) {
             }
 
             @Override
             public void onAnimationEnd(Animation animation) {
-                /** 动画结束后清除效果 */
                 v.clearAnimation();
             }
 
             @Override
             public void onAnimationRepeat(Animation animation) {
             }
         });
-        // 开始
         revertAnimation.start();
     }
 
@@ -197,17 +160,19 @@ public DragRecyclerView showDragAnimation(boolean showDragAnimation) {
         return this;
     }
 
+
     public DragRecyclerView setDragAdapter(OnItemChangeListener dragBaseAdapter) {
         if (dragBaseAdapter instanceof Adapter) {
             this.adapter = dragBaseAdapter;
             touchHelper.attachToRecyclerView(this);
-            setAdapter((Adapter) adapter);
+            super.setAdapter((Adapter) adapter);
         } else {
             throw new IllegalArgumentException();
         }
         return this;
     }
 
+
     public DragRecyclerView bindEvent(HoldTouchHelper.OnItemTouchEvent onItemTouchEvent) {
         HoldTouchHelper.bind(this, onItemTouchEvent);
         return this;

dragrecyclerview/src/main/java/cn/cyan/dragrecyclerview/HoldTouchHelper.java

@@ -7,11 +7,9 @@
 import android.view.View;
 
 /**
- * Desc : 拦截 recyclerView 单击/长按事件
- * User : Cyan([email protected])
- * New  : 2016/11/21 13:09
+ * User : Cyan([email protected])
+ * Date : 2016/9/28
  */
-
 public class HoldTouchHelper {
 
     private RecyclerView recyclerView;

dragrecyclerview/src/main/java/cn/cyan/dragrecyclerview/OnItemChangeListener.java

@@ -1,15 +1,18 @@
 package cn.cyan.dragrecyclerview;
 
+
 /**
- * Desc : item改变
- * User : Cyan([email protected])
- * New  : 2016/9/28 8:41
+ * User : Cyan([email protected])
+ * Date : 2016/9/28
  */
 public interface OnItemChangeListener {
 
-    /* 是否可拖动 */
+    /* item can be dragged */
     boolean onItemDrag(int position);
 
-    /* item移动 */
+    /* item moved */
     void onItemMoved(int form, int target);
+
+    /* item can be dropped */
+    boolean onItemDrop(int position);
 }

sample/src/androidTest/java/cn/cyan/dragtab/ExampleInstrumentedTest.java → sample/src/androidTest/java/cn/cyan/sample/ExampleInstrumentedTest.java

@@ -1,4 +1,4 @@
-package cn.cyan.dragtab;
+package cn.cyan.sample;
 
 import android.content.Context;
 import android.support.test.InstrumentationRegistry;

sample/src/main/AndroidManifest.xml

@@ -1,14 +1,15 @@
 <?xml version="1.0" encoding="utf-8"?>
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
-    package="cn.cyan.dragtab">
+    package="cn.cyan.sample">
 
     <application
+        android:name=".base.SampleApplication"
         android:allowBackup="true"
         android:icon="@mipmap/ic_launcher"
         android:label="@string/app_name"
         android:supportsRtl="true"
         android:theme="@style/AppTheme">
-        <activity android:name=".MainActivity">
+        <activity android:name="cn.cyan.sample.base.MainActivity">
             <intent-filter>
                 <action android:name="android.intent.action.MAIN" />