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. */
	@Override
	public 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() {
			@Override
			public void onClick(View arg0) {
				// TODO Auto-generated method stub

				Intent 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(); 
            } 
        } 
    };

	@Override
	protected 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();
	} 
    
}