private Toast toast = null;
	private void showTextToast(String msg)
	{
		if (toast == null)
		{
			toast = Toast.makeText(getApplicationContext(), msg,
					Toast.LENGTH_SHORT);
		}
		else
		{
			//更新之前建立的一個使用makeText()方法的Toast裡的文字。也就是說如果不先呼叫makeText()方法則不會顯示
			toast.setText(msg);
		}
		toast.show();
	}
 

相關推薦