Android 图片选择器（拍照）自定义

开发经常遇到获取图片问题

/**
 * 读取手机中所有图片信息
 */
private void getAllPhotoInfo() {
    new Thread(new Runnable() {
        @Override
        public void run() {

            Uri mImageUri = MediaStore.Images.Media.EXTERNAL_CONTENT_URI;
            String[] projImage = { MediaStore.Images.Media._ID
                    , MediaStore.Images.Media.DATA
                    ,MediaStore.Images.Media.SIZE
                    ,MediaStore.Images.Media.DISPLAY_NAME};
            Cursor mCursor = getContentResolver().query(mImageUri,
                    projImage,
                    MediaStore.Images.Media.MIME_TYPE + "=? or " + MediaStore.Images.Media.MIME_TYPE + "=?",
                    new String[]{"image/jpeg", "image/png"},
                    MediaStore.Images.Media.DATE_MODIFIED+" desc");

            if(mCursor!=null){
                while (mCursor.moveToNext()) {
                    // 获取图片的路径
                    String path = mCursor.getString(mCursor.getColumnIndex(MediaStore.Images.Media.DATA));
                    int size = mCursor.getInt(mCursor.getColumnIndex(MediaStore.Images.Media.SIZE))/1024;
                    String displayName = mCursor.getString(mCursor.getColumnIndex(MediaStore.Images.Media.DISPLAY_NAME));
                    //用于展示相册初始化界面

                    // 获取该图片的父路径名
                    String dirPath = new File(path).getParentFile().getAbsolutePath();
                    //存储对应关系
                    PhotoDirectory photo = new PhotoDirectory();
                    photo.setCoverPath(path);
                    directories.add(photo);
                }

                runOnUiThread(new Runnable() {
                    @Override
                    public void run() {

                        adapter.notifyDataSetChanged();
                    }
                });
                mCursor.close();
            }

        }
    }).start();
}


/**
 * 获取手机中所有视频的信息
 */
private void getAllVideoInfos(){
    new Thread(new Runnable() {
        @Override
        public void run() {

            BitmapFactory.Options options = new BitmapFactory.Options();
            options.inDither = false;
            options.inPreferredConfig = Bitmap.Config.ALPHA_8;
            ContentResolver contentResolver = getContentResolver();
            Cursor mCursor = contentResolver.query(
                    MediaStore.Video.Media.EXTERNAL_CONTENT_URI, null, null,
                    null, null);
            List<PhotoDirectory> list = new ArrayList<>();
            if(mCursor!=null){
                while (mCursor.moveToNext()) {
                    // 获取视频的路径
                    int videoId = mCursor.getInt(mCursor.getColumnIndex(MediaStore.Video.Media._ID));
                    String path = mCursor.getString(mCursor.getColumnIndex(MediaStore.Video.Media.DATA));
                  /*  int duration = mCursor.getInt(mCursor.getColumnIndex(MediaStore.Video.Media.DURATION));
                    long size = mCursor.getLong(mCursor.getColumnIndex(MediaStore.Video.Media.SIZE))/1024; //单位kb
                    if(size<0){
                        //某些设备获取size<0，直接计算
                        Log.e("dml","this video size < 0 " + path);
                        size = new File(path).length()/1024;

                    }
                    String displayName = mCursor.getString(mCursor.getColumnIndex(MediaStore.Video.Media.DISPLAY_NAME));
                    long modifyTime = mCursor.getLong(mCursor.getColumnIndex(MediaStore.Video.Media.DATE_MODIFIED));//暂未用到

                    //提前生成缩略图，再获取：http://stackoverflow.com/questions/27903264/how-to-get-the-video-thumbnail-path-and-not-the-bitmap

                    String[] projection = { MediaStore.Video.Thumbnails._ID, MediaStore.Video.Thumbnails.DATA};
                    Cursor cursor = getContentResolver().query(MediaStore.Video.Thumbnails.EXTERNAL_CONTENT_URI
                            , projection
                            , MediaStore.Video.Thumbnails.VIDEO_ID + "=?"
                            , new String[]{videoId+""}
                            , null);
                    String thumbPath = "";
                    while (cursor.moveToNext()){
                        thumbPath = cursor.getString(cursor.getColumnIndex(MediaStore.Video.Thumbnails.DATA));
                    }
                    cursor.close();

                    // 获取该视频的父路径名
                    String dirPath = new File(path).getParentFile().getAbsolutePath();*/
                    //存储对应关系
                    PhotoDirectory photo = new PhotoDirectory();
                    photo.setCoverPath(path);
                    list.add(photo);


                }
                runOnUiThread(new Runnable() {
                    @Override
                    public void run() {
                        for (int i = list.size()-1; i >-1 ; i--) {
                            LogUtil.v(i+"================");
                            directories.add(list.get(i));
                        }
                        adapter.notifyDataSetChanged();
                    }
                });
                mCursor.close();
            }

        }
    }).start();
}

下载地址

1.适配android6.0+系统

2.解决部分机型闪退问题

3.解决图片过大oom闪退问题