android 關於截屏儲存圖片到相簿功能

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iv_photo.buildDrawingCache();
iv_photo.setBackgroundColor(mContext.getResources().getColor(R.color.TextColorWhite));
iv_photo.setDrawingCacheEnabled(true);
Bitmap bitmap = iv_photo.getDrawingCache();

SimpleDateFormat formatter = new SimpleDateFormat("yyyy年MM月dd日 HH:mm:ss");
Date curDate = new Date(System.currentTimeMillis());// 擷取目前時間
String str = formatter.format(curDate);

MediaStore.Images.Media.insertImage(mContext.getContentResolver(), bitmap, str, "");
UpdateUserPhotoActivity.this.sendBroadcast(new Intent(Intent.ACTION_MEDIA_SCANNER_SCAN_FILE, Uri.parse("file://"
+ Environment.getExternalStorageDirectory())));
iv_photo.setBackgroundColor(mContext.getResources().getColor(R.color.black));
Toast.makeText(mContext,"儲存相簿成功！",Toast.LENGTH_SHORT).show();

android 關於截屏儲存圖片到相簿功能