Android Handler传值方式

前面介绍handler的时候,也用到过几种传值方式,今天来总结一下,并且重点说一下bundle方式,代码如下:

package com.handlerThread;

import android.app.Activity;
import android.os.Bundle;
import android.os.Handler;
import android.os.HandlerThread;
import android.os.Looper;
import android.os.Message; public class handlerThread2 extends Activity { @Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main); //System.out.println("activity线程ID:"+Thread.currentThread().getId());
HandlerThread handlerThread = new HandlerThread("handlerThread");
handlerThread.start();
MyHandler handler = new MyHandler(handlerThread.getLooper());
Message msg = handler.obtainMessage(); //msg.arg1 = 123;//传递整型数据
//msg.obj = "asd";传递object类型 //利用bundle对象来传值
Bundle b = new Bundle();
b.putInt("ID", );
b.putString("name", "thinkpad");
msg.setData(b); msg.sendToTarget();
}
class MyHandler extends Handler { public MyHandler() {
super();
} public MyHandler(Looper looper) {
super(looper);
} @Override
public void handleMessage(Message msg) {
super.handleMessage(msg);
//int args = msg.arg1;
//String s = (String)msg.obj; //获取bundle对象的值
Bundle b = msg.getData();
int id = b.getInt("ID");
String name = b.getString("name");
System.out.println("id is "+id+", name is "+name); //System.out.println("handler线程ID:"+Thread.currentThread().getId());
} } }

运行结果

Android Handler传值方式

那么,bundle具体是个什么东西呢,我们来看一下官方的解释

Android Handler传值方式

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