手工注册广播

（不推荐）

  可以通过代码完成广播的注册

 

 

在main.xml中：

 

<LinearLayout

    xmlns:android="http://schemas.android.com/apk/res/android"

    android:layout_width="fill_parent"

    android:layout_height="fill_parent"

    android:background="#000000"

    android:gravity="center_horizontal">

  <Button

      android:id="@+id/mybut"

      android:layout_marginTop="8dp"

      android:layout_width="80dp"

      android:layout_height="40dp"

      android:textColor="#ffffff"

      android:background="#3399ff"

      android:text="开始广播"/>

</LinearLayout>

 

 

 

 

 

 

新建MyBroadCastReceviceUtil.java:

 

package com.li.broadcastproject;

 

import android.content.BroadcastReceiver;

import android.content.Context;

import android.content.Intent;

import android.widget.Toast;

 

public class MyBroadcastReceiverUtil extends BroadcastReceiver {

  @Override

  public void onReceive(Context context, Intent intent) {

     if ("org.lxh.action.LYW".equals(intent.getAction())) {  // 指定的Action

       String msg = intent.getStringExtra("msg") ; // 取得附加信息

       Toast.makeText(context, msg, Toast.LENGTH_SHORT).show();

     }

  }

 

}

 

 

 

 

 

 

在MyBroadcastDemo.java中：

 

package com.li.broadcastproject;

 

import android.app.Activity;

import android.content.Intent;

import android.content.IntentFilter;

import android.os.Bundle;

import android.view.View;

import android.view.View.OnClickListener;

import android.widget.Button;

 

public class MyBroadcastDemo extends Activity {

  private Button mybut = null ;

  private MyBroadcastReceiverUtil broadUtil = null ;

  @Override

  public void onCreate(Bundle savedInstanceState) {

     super.onCreate(savedInstanceState);

     super.setContentView(R.layout.main);

    

     this.mybut = (Button) super.findViewById(R.id.mybut);

     this.mybut.setOnClickListener(new OnClickListenerImpl()) ;

  }

 

  private class OnClickListenerImpl implements OnClickListener{

 

     public void onClick(View v) {

       Intent it = new Intent("org.lxh.action.LYW"); // 操作的过滤

       it.putExtra("msg", "Hello 李叶文") ;  // 附加信息

       IntentFilter filter = new IntentFilter("org.lxh.action.LYW") ;

       MyBroadcastDemo.this.broadUtil = new MyBroadcastReceiverUtil() ;

       MyBroadcastDemo.this.registerReceiver(MyBroadcastDemo.this.broadUtil, filter) ;

       MyBroadcastDemo.this.sendBroadcast(it) ;

     }

    

  }

}