add image pick component

Android-components/android-app-components/src/main/java/com/heaven7/android/component/gallery/ImagePickComponent.java

@@ -0,0 +1,52 @@
+package com.heaven7.android.component.gallery;
+
+import android.app.Activity;
+import android.content.Intent;
+
+import com.heaven7.android.component.AppComponentContext;
+
+import java.util.List;
+
+/**
+ * the image pick delegate
+ * @author heaven7
+ * @since 1.1.4
+ */
+public interface ImagePickComponent extends AppComponentContext {
+
+    /**
+     * start pick image from camera. you should start with startActivityForResult and setResult for callback
+     * @param activity the activity
+     * @param op the pick option
+     * @param callback the callback of pick
+     */
+     void startPickFromCamera(Activity activity, PickOption op, Callback callback);
+
+    /**
+     * start pick from gallery.
+     * @param activity the activity
+     * @param op the pick option
+     * @param callback the callback of pick
+     */
+     void startPickFromGallery(Activity activity, PickOption op, Callback callback);
+
+    /**
+     * often we handle data from activity onActivityResult.
+     * @param requestCode the request code
+     * @param resultCode the result code
+     * @param data the intent data.
+     */
+    void onActivityResult(int requestCode, int resultCode, Intent data);
+
+    /**
+     * the callback of pick
+     */
+    interface Callback{
+        /**
+         * called on pick result
+         * @param activity the activity
+         * @param files the files.
+         */
+        void onPickResult(Activity activity, List<String> files);
+    }
+}

Android-components/android-app-components/src/main/java/com/heaven7/android/component/gallery/PickOption.java

@@ -0,0 +1,116 @@
+package com.heaven7.android.component.gallery;
+
+/**
+ * the pick option
+ * @author heaven7
+ * @since 1.1.4
+ */
+public class PickOption {
+
+    private int minCount;
+    private int maxCount;
+    private boolean crop;
+    private int aspectX;
+    private int aspectY;
+    private int outputX;
+    private int outputY;
+    private String outputFormat; //png ,jpeg and etc.
+
+    protected PickOption(PickOption.Builder builder) {
+        this.minCount = builder.minCount;
+        this.maxCount = builder.maxCount;
+        this.crop = builder.crop;
+        this.aspectX = builder.aspectX;
+        this.aspectY = builder.aspectY;
+        this.outputX = builder.outputX;
+        this.outputY = builder.outputY;
+        this.outputFormat = builder.outputFormat;
+    }
+
+    public int getMinCount() {
+        return this.minCount;
+    }
+
+    public int getMaxCount() {
+        return this.maxCount;
+    }
+
+    public boolean isCrop() {
+        return this.crop;
+    }
+
+    public int getAspectX() {
+        return this.aspectX;
+    }
+
+    public int getAspectY() {
+        return this.aspectY;
+    }
+
+    public int getOutputX() {
+        return this.outputX;
+    }
+
+    public int getOutputY() {
+        return this.outputY;
+    }
+
+    public String getOutputFormat() {
+        return this.outputFormat;
+    }
+
+    public static class Builder {
+        private int minCount;
+        private int maxCount;
+        private boolean crop;
+        private int aspectX;
+        private int aspectY;
+        private int outputX;
+        private int outputY;
+        private String outputFormat; //png ,jpeg and etc.
+
+        public Builder setMinCount(int minCount) {
+            this.minCount = minCount;
+            return this;
+        }
+
+        public Builder setMaxCount(int maxCount) {
+            this.maxCount = maxCount;
+            return this;
+        }
+
+        public Builder setCrop(boolean crop) {
+            this.crop = crop;
+            return this;
+        }
+
+        public Builder setAspectX(int aspectX) {
+            this.aspectX = aspectX;
+            return this;
+        }
+
+        public Builder setAspectY(int aspectY) {
+            this.aspectY = aspectY;
+            return this;
+        }
+
+        public Builder setOutputX(int outputX) {
+            this.outputX = outputX;
+            return this;
+        }
+
+        public Builder setOutputY(int outputY) {
+            this.outputY = outputY;
+            return this;
+        }
+
+        public Builder setOutputFormat(String outputFormat) {
+            this.outputFormat = outputFormat;
+            return this;
+        }
+
+        public PickOption build() {
+            return new PickOption(this);
+        }
+    }
+}