一 布局
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent" android:layout_height="match_parent" android:paddingLeft="@dimen/activity_horizontal_margin" android:paddingRight="@dimen/activity_horizontal_margin" android:paddingTop="@dimen/activity_vertical_margin" android:paddingBottom="@dimen/activity_vertical_margin" tools:context=".MainActivity"> <Button android:layout_width="match_parent" android:layout_height="wrap_content" android:text="send" android:id="@+id/button"/> </RelativeLayout>
二 代码
private Button button; private Handler handler; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); button = (Button)this.findViewById(R.id.button); button.setOnClickListener(new ButtonListener()); WorkerThread thread = new WorkerThread(); thread.start(); } class ButtonListener implements View.OnClickListener { @Override public void onClick(View v) { Message msg = handler.obtainMessage(); handler.sendMessage(msg); } } class WorkerThread extends Thread { public void run() { Looper.prepare(); handler = new Handler(){ public void handleMessage(Message msg){ System.out.println("Message From MainThread"); } }; Looper.loop(); } }
Android开发基础之Main线程向Worker线程发送消息
原文:http://blog.csdn.net/xufeng0991/article/details/44580469