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(){
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@Override
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public void onReceive(Context context, Intent intent) {
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String action = intent.getAction();
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if(action.equals(ACTION_NAME)){
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Toast.makeText(Test.this, "处理action名字相对应的广播", 200);
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}
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}
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};
第二步：注册该广播：
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public void registerBoradcastReceiver(){
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IntentFilter myIntentFilter = new IntentFilter();
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myIntentFilter.addAction(ACTION_NAME);
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registerReceiver(mBroadcastReceiver, myIntentFilter);
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}
第三步：触发响应
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mBtnMsgEvent = new Button(this);
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mBtnMsgEvent.setText("发送广播");
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mBtnMsgEvent.setOnClickListener(new OnClickListener() {
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@Override
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public void onClick(View v) {
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Intent mIntent = new Intent(ACTION_NAME);
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mIntent.putExtra("yaner", "发送广播，相当于在这里传送数据");
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sendBroadcast(mIntent);
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}
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});
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-----最后附上完整代码：
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package my.yaner;
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import android.app.Activity;
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import android.content.BroadcastReceiver;
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import android.content.Context;
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import android.content.Intent;
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import android.content.IntentFilter;
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import android.os.Bundle;
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import android.view.View;
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import android.view.View.OnClickListener;
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import android.widget.Button;
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import android.widget.LinearLayout;
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import android.widget.Toast;
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public class Test extends Activity{
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private final String ACTION_NAME = "发送广播";
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private Button mBtnMsgEvent = null;
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protected void onCreate(Bundle savedInstanceState){
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super.onCreate(savedInstanceState);
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registerBoradcastReceiver();
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LinearLayout mLinearLayout = new LinearLayout(this);
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mBtnMsgEvent = new Button(this);
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mBtnMsgEvent.setText("发送广播");
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mLinearLayout.addView(mBtnMsgEvent);
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setContentView(mLinearLayout);
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mBtnMsgEvent.setOnClickListener(new OnClickListener() {
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@Override
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public void onClick(View v) {
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Intent mIntent = new Intent(ACTION_NAME);
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mIntent.putExtra("yaner", "发送广播，相当于在这里传送数据");
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sendBroadcast(mIntent);
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}
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});
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}
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private BroadcastReceiver mBroadcastReceiver = new BroadcastReceiver(){
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@Override
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public void onReceive(Context context, Intent intent) {
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String action = intent.getAction();
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if(action.equals(ACTION_NAME)){
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Toast.makeText(Test.this, "处理action名字相对应的广播", 200);
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}
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}
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};
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public void registerBoradcastReceiver(){
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IntentFilter myIntentFilter = new IntentFilter();
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myIntentFilter.addAction(ACTION_NAME);
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registerReceiver(mBroadcastReceiver, myIntentFilter);
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}
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}
android 广播的使用
原文：http://blog.csdn.net/lsong89/article/details/39160427
