Android安卓长按ImageView保存图片到相册

imageView.setOnLongClickListener(new LongClickHandler());class LongClickHandler implements View.OnLongClickListener{        @Override        public boolean onLongClick(View view) {            LogHelper.ShowLog("LongClickHandler");            boolean bRet = PublicUtil.SaveJpg((ImageView) view);            if(bRet){                Toast.makeText(getContext(), "图片保存成功", Toast.LENGTH_SHORT).show();            }            else{                Toast.makeText(getContext(), "图片保存失败", Toast.LENGTH_SHORT).show();            }            return true;        }    }public static boolean SaveJpg(ImageView view) {        try{            Drawable drawable = view.getDrawable();            if (drawable == null) {                return false;            }            ContentValues values = new ContentValues();            values.put(MediaStore.Images.Media.MIME_TYPE, "image/jpeg");            Uri dataUri = MediaStore.Images.Media.EXTERNAL_CONTENT_URI;            Uri fileUri = view.getContext().getContentResolver().insert(dataUri, values);            // 如果保存不成功，insert没有任何错误信息，此时调用update会有错误信息提示//            view.getContext().getContentResolver().update(dataUri, values, "", null);            if(fileUri == null){                LogHelper.ShowLog("fileUri == null");                return false;            }            OutputStream outStream = view.getContext().getContentResolver().openOutputStream(fileUri);            Bitmap bitmap = ((BitmapDrawable) drawable).getBitmap();            bitmap.compress(Bitmap.CompressFormat.JPEG, 100, outStream);            outStream.flush();            outStream.close();            // 刷新相册            /*            String[] files = new String[1];            String[] mimeTypes = new String[1];            files[0] = filePath;            mimeTypes[0] = "image/jpeg";            MediaScannerConnection.scanFile(view.getContext(), files, mimeTypes, null);            */            view.getContext().sendBroadcast(new Intent("com.android.camera.NEW_PICTURE", fileUri));            LogHelper.ShowLog("保存图片到相册完毕...");            return true;        }        catch (IOException ex) {            LogHelper.ShowException(ex);        }        return false;    }
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