1、Activity的 runOnUiThread textView = (TextView) findViewById( R.id.tv ); new Thread(new Runnable() { @Override public void run() { runOnUiThread(new Runnable() { @Override public void run() { textView.setText( 更新UI了); } }); } }).start(); android Activity runOnUiThread() 方法使用 2、Handler sendEmptyM