android 主线程与分线程 做同步
16lz
2021-01-23
直接上代码
package com.example.handlerthreaddemo;import android.app.Activity;import android.os.Bundle;import android.os.Handler;import android.os.Message;import android.view.Menu;import android.view.View;public class MainActivity extends Activity { Test t; Handler mh=new Handler(){ @Override public void handleMessage(Message msg) { String s = (String) msg.obj; Bundle data = msg.getData(); String title = data.getString("title"); String info = data.getString("info"); System.out.println("title is " + title + ", info is" + info); System.out.println("msg.obj is " + s); System.out.println("handlerMessage() is "+Thread.currentThread().getId()); } }; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); t=new Test(mh); } public void OnClick(View v){ switch (v.getId()) { case R.id.button1: t.send(); break; default: break; } } @Override public boolean onCreateOptionsMenu(Menu menu) { // Inflate the menu; this adds items to the action bar if it is present. getMenuInflater().inflate(R.menu.activity_main, menu); return true; }}
分线程代码:
package com.example.handlerthreaddemo;import android.os.Bundle;import android.os.Handler;import android.os.HandlerThread;import android.os.Message;public class Test { HandlerThread mhandlerThread1, mhandlerThread2; Handler mhandler1; Handler mhandler2; public Test(Handler mh) { mhandler2=mh; mhandlerThread1 = new HandlerThread("update"); mhandlerThread1.setDaemon(true); mhandlerThread1.start(); mhandler1 = new Handler(mhandlerThread1.getLooper()) { @Override public void handleMessage(Message msg) { String s = (String) msg.obj; Bundle data = msg.getData(); String title = data.getString("title"); String info = data.getString("info"); System.out.println("title is " + title + ", info is" + info); System.out.println("msg.obj is " + s); System.out.println("handlerMessage() is "+Thread.currentThread().getId()); //---------------------------- Message msg1 = new Message(); msg1.obj = "abc"; Bundle data1 = new Bundle(); data1.putString("title", "你好吗"); data1.putString("info", "哈哈哈哈"); msg1.setData(data1); mhandler2.sendMessage(msg1); } }; } public void send() { System.out.println("send() is "+Thread.currentThread().getId()); Message msg = new Message(); msg.obj = "abc"; Bundle data = new Bundle(); data.putString("title", "你好吗"); data.putString("info", "哈哈哈哈"); msg.setData(data); mhandler1.sendMessage(msg); // 将msg发送到对象，所谓的目标对象就是生成该msg对象的Handler对象 }}
xml文件
<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" tools:context=".MainActivity" > <TextView android:id="@+id/textView1" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_centerHorizontal="true" android:layout_centerVertical="true" android:text="@string/hello_world" /> <Button android:id="@+id/button1" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_alignParentTop="true" android:layout_alignRight="@+id/textView1" android:layout_marginRight="16dp" android:layout_marginTop="44dp" android:text="Button" android:onClick="OnClick" /></RelativeLayout>
csdn下载路径:http://download.csdn.net/detail/wenwei19861106/4849987
更多相关文章
- Android 颜色代码
- mono android 非UI线程操作UI线程
- 在Eclipse 中关联android sdk 源代码
- 操作内存卡的常用代码
- android 根据SD卡中图片路径读取并显示SD中的图片——源代码
- android代码混淆及打包相关
- android 中生成XML文件的代码
- [置顶] ［Android自定义控件］Android中如何用代码写出优美的Button