Android 使用广播（BroadcastReceiver）传递数据

第一步：定义一个BroadcastReceiver广播接收类：

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：

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

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);  
        }  
    });  

—–最后附上完整代码：

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);  
}  

}