在Activity中，注册广播的一个Demo。

总共分3步

第一步：定义一个BroadcastReceiver广播接收类：

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private BroadcastReceiver mBroadcastReceiver = new BroadcastReceiver(){ 

        @Override 

        public void onReceive(Context context, Intent intent) { 

            String action = intent.getAction(); 

            if(action.equals(ACTION_NAME)){ 

                Toast.makeText(Test.this, "处理action名字相对应的广播", 200); 

            } 

        } 

         

    }; 

 

第二步：注册该广播：

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public void registerBoradcastReceiver(){ 

        IntentFilter myIntentFilter = new IntentFilter(); 

        myIntentFilter.addAction(ACTION_NAME); 

        //注册广播       

        registerReceiver(mBroadcastReceiver, myIntentFilter); 

    } 

 

第三步：触发响应

 

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mBtnMsgEvent = new Button(this); 

        mBtnMsgEvent.setText("发送广播"); 

        mBtnMsgEvent.setOnClickListener(new OnClickListener() { 

            @Override 

            public void onClick(View v) { 

                Intent mIntent = new Intent(ACTION_NAME); 

                mIntent.putExtra("yaner", "发送广播，相当于在这里传送数据"); 

                 

                //发送广播 

                sendBroadcast(mIntent); 

            } 

        }); 

 

package com.zyw.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.LinearLayout; import android.widget.Toast;  public class Test extends Activity{     private final String ACTION_NAME = "发送广播";     private Button mBtnMsgEvent = null;          protected void onCreate(Bundle savedInstanceState){         super.onCreate(savedInstanceState);                  //注册广播         registerBoradcastReceiver();                  LinearLayout mLinearLayout = new LinearLayout(this);         mBtnMsgEvent = new Button(this);         mBtnMsgEvent.setText("发送广播");         mLinearLayout.addView(mBtnMsgEvent);         setContentView(mLinearLayout);                  mBtnMsgEvent.setOnClickListener(new OnClickListener() {             @Override             public void onClick(View v) {                 Intent mIntent = new Intent(ACTION_NAME);                 mIntent.putExtra("yaner", "发送广播，相当于在这里传送数据");                                  //发送广播                 sendBroadcast(mIntent);             }         });     }          private BroadcastReceiver mBroadcastReceiver = new BroadcastReceiver(){         @Override         public void onReceive(Context context, Intent intent) {             String action = intent.getAction();             if(action.equals(ACTION_NAME)){                 Toast.makeText(Test.this, "处理action名字相对应的广播", 200);             }         }              };          public void registerBoradcastReceiver(){         IntentFilter myIntentFilter = new IntentFilter();         myIntentFilter.addAction(ACTION_NAME);         //注册广播               registerReceiver(mBroadcastReceiver, myIntentFilter);     } }