添加注释

Author: donkingliang

imageselector/src/main/java/com/donkingliang/imageselector/ImageSelectorActivity.java

@@ -372,6 +372,7 @@ private void confirm() {
         if (mAdapter == null) {
             return;
         }
+        //因为图片的实体类是Image，而我们返回的是String数组，所以要进行转换。
         ArrayList<Image> selectImages = mAdapter.getSelectImages();
         ArrayList<String> images = new ArrayList<>();
         for (Image image : selectImages) {
@@ -382,6 +383,7 @@ private void confirm() {
         Intent intent = new Intent();
         intent.putStringArrayListExtra(ImageSelectorUtils.SELECT_RESULT, images);
         setResult(RESULT_OK, intent);
+
         finish();
     }
 

imageselector/src/main/java/com/donkingliang/imageselector/adapter/FolderAdapter.java

@@ -38,7 +38,7 @@ public ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
     }
 
     @Override
-    public void onBindViewHolder(ViewHolder holder, final int position) {
+    public void onBindViewHolder(final ViewHolder holder,int position) {
         final Folder folder = mFolders.get(position);
         ArrayList<Image> images = folder.getImages();
         holder.tvFolderName.setText(folder.getName());
@@ -55,7 +55,7 @@ public void onBindViewHolder(ViewHolder holder, final int position) {
         holder.itemView.setOnClickListener(new View.OnClickListener() {
             @Override
             public void onClick(View v) {
-                mSelectItem = position;
+                mSelectItem = holder.getAdapterPosition();
                 notifyDataSetChanged();
                 if(mListener != null){
                     mListener.OnFolderSelect(folder);

imageselector/src/main/java/com/donkingliang/imageselector/adapter/ImageAdapter.java

@@ -46,7 +46,7 @@ public ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
     }
 
     @Override
-    public void onBindViewHolder(final ViewHolder holder, final int position) {
+    public void onBindViewHolder(final ViewHolder holder, int position) {
         final Image image = mImages.get(position);
         Glide.with(mContext).load(new File(image.getPath()))
                 .diskCacheStrategy(DiskCacheStrategy.NONE).into(holder.ivImage);
@@ -78,7 +78,7 @@ public void onClick(View v) {
             @Override
             public void onClick(View v) {
                 if(mItemClickListener != null){
-                    mItemClickListener.OnItemClick(image,position);
+                    mItemClickListener.OnItemClick(image,holder.getAdapterPosition());
                 }
             }
         });

imageselector/src/main/java/com/donkingliang/imageselector/model/ImageModel.java

@@ -25,10 +25,11 @@ public class ImageModel {
      * @param callback
      */
     public static void loadImageForSDCard(final Context context, final DataCallback callback) {
+        //由于扫描图片是耗时的操作，所以要在子线程处理。
         new Thread(new Runnable() {
             @Override
             public void run() {
-
+                //扫描图片
                 Uri mImageUri = MediaStore.Images.Media.EXTERNAL_CONTENT_URI;
                 ContentResolver mContentResolver = context.getContentResolver();
 
@@ -43,19 +44,22 @@ public void run() {
 
                 ArrayList<Image> images = new ArrayList<>();
 
-                while (mCursor.moveToNext()) {
-                    // 获取图片的路径
-                    String path = mCursor.getString(
-                            mCursor.getColumnIndex(MediaStore.Images.Media.DATA));
-                    //获取图片名称
-                    String name = mCursor.getString(
-                            mCursor.getColumnIndex(MediaStore.Images.Media.DISPLAY_NAME));
-                    //获取图片时间
-                    long time = mCursor.getLong(
-                            mCursor.getColumnIndex(MediaStore.Images.Media.DATE_ADDED));
-                    images.add(new Image(path, time, name));
+                //读取扫描到的图片
+                if (mCursor != null) {
+                    while (mCursor.moveToNext()) {
+                        // 获取图片的路径
+                        String path = mCursor.getString(
+                                mCursor.getColumnIndex(MediaStore.Images.Media.DATA));
+                        //获取图片名称
+                        String name = mCursor.getString(
+                                mCursor.getColumnIndex(MediaStore.Images.Media.DISPLAY_NAME));
+                        //获取图片时间
+                        long time = mCursor.getLong(
+                                mCursor.getColumnIndex(MediaStore.Images.Media.DATE_ADDED));
+                        images.add(new Image(path, time, name));
+                    }
+                    mCursor.close();
                 }
-                mCursor.close();
                 Collections.reverse(images);
                 callback.onSuccess(splitFolder(images));
             }
@@ -64,6 +68,7 @@ public void run() {
 
     /**
      * 把图片按文件夹拆分，第一个文件夹保存所有的图片
+     *
      * @param images
      * @return
      */
@@ -87,6 +92,7 @@ private static ArrayList<Folder> splitFolder(ArrayList<Image> images) {
 
     /**
      * 跟着图片路径，获取图片文件夹名称
+     *
      * @param path
      * @return
      */
@@ -101,7 +107,7 @@ private static String getFolderName(String path) {
     }
 
     private static Folder getFolder(String name, List<Folder> folders) {
-        if (folders != null && !folders.isEmpty()) {
+        if (!folders.isEmpty()) {
             int size = folders.size();
             for (int i = 0; i < size; i++) {
                 Folder folder = folders.get(i);