import android.provider.SyncStateContract.Constants; //导入依赖的package包/类
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
	// TODO Auto-generated method stub
	super.onActivityResult(requestCode, resultCode, data);
	if(resultCode == RESULT_OK)
	{
		//add to gallery
		if(requestCode==PICTURE_INTENT_CODE||requestCode==VIDEO_INTENT_CODE){
		Intent galleryAddIntent = new Intent(Intent.ACTION_MEDIA_SCANNER_SCAN_FILE);
		galleryAddIntent.setData(mMediaUri);
		sendBroadcast(galleryAddIntent);

		Intent sendIntent = new Intent(ChatsActivity.this,RecipientsActivity.class);
		sendIntent.setData(mMediaUri);
		String type = new String();
		if(requestCode == PICTURE_INTENT_CODE)
		{
			type = com.shivamb7.chitchat.workers.Constants.TYPE_PICTURE;
		}
		else if(requestCode == VIDEO_INTENT_CODE)
		{
			type = com.shivamb7.chitchat.workers.Constants.TYPE_VIDEO;
		}
		
		
		sendIntent.putExtra(com.shivamb7.chitchat.workers.Constants.FILE_TYPE, type);
		startActivity(sendIntent);
	}
		else
		{
			
		}
	}
	else if(resultCode != RESULT_CANCELED)
	{
		Toast.makeText(this, "There was an error", Toast.LENGTH_SHORT).show();
	}
}