android广播 demo

package com.royal.broadcast;import android.app.Activity;import android.content.BroadcastReceiver;import android.content.Context;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;import android.widget.Toast;/** * 广播示例 *  * @author Royal *  */public class BroadcastDemoActivity extends Activity {private Button btn_broadcast = null;private final String ACTION_NAME = "发送广播";/** Called when the activity is first created. */@Overridepublic void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.main);// 注册广播registerBoradcastReceiver();btn_broadcast = (Button) findViewById(R.id.btn_broadcast);btn_broadcast.setOnClickListener(new OnClickListener() {@Overridepublic void onClick(View arg0) {// TODO Auto-generated method stubIntent mIntent = new Intent(ACTION_NAME);mIntent.putExtra("royal", "发送广播，相当于在这里传送数据");// 发送广播sendBroadcast(mIntent);}});}/** * 注册广播       */public void registerBoradcastReceiver(){         IntentFilter myIntentFilter = new IntentFilter();         myIntentFilter.addAction(ACTION_NAME);         //注册广播               registerReceiver(mBroadcastReceiver, myIntentFilter);         System.out.println("广播注册");    } /** * 广播接收处理 */private BroadcastReceiver mBroadcastReceiver = new BroadcastReceiver(){         @Override         public void onReceive(Context context, Intent intent) {             String action = intent.getAction();             String str = intent.getStringExtra("royal");            if(action.equals(ACTION_NAME)){             System.out.println("广播处理参数:" + str);                Toast.makeText(BroadcastDemoActivity.this, "处理action名字相对应的广播", 200).show();             }         }     };@Overrideprotected void onDestroy() {// TODO Auto-generated method stub//取消广播注册this.unregisterReceiver(mBroadcastReceiver);System.out.println("取消广播注册");super.onDestroy();}     }
BroadcastDemo.rar (51.5 KB)
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