一、静态注册广播
//在清单文件配置<receiver><receiver/>
<receiverandroid:name=".receiver1.BootComleteReceiver"
android:enabled="true"
android:exported="true">
<intent-filter>
<action android:name="android.intent.action.BOOT_COMPLETED" />
</intent-filter>
</receive
二、模拟开机网络状态
/**
* 广播接收器：模拟动态监听 ：网络变化（系统广播）
创建一个Receiver对象，继承BroadcastReceiver
*/
public class NetWorkChangeReceiver extends BroadcastReceiver {
@Override
public void onReceive(Context context, Intent intent) {
//获取网络管理器类
ConnectivityManager connectivityManager = (ConnectivityManager)context.getSystemService(Context.CONNECTIVITY_SERVICE);
//网络信息
NetworkInfo activeNetworkInfo = connectivityManager.getActiveNetworkInfo();
if (activeNetworkInfo!=null && activeNetworkInfo.isAvailable()){
Toast.makeText(context,"有网",Toast.LENGTH_SHORT).show();
}else{
Toast.makeText(context,"没网",Toast.LENGTH_SHORT).show();
}
}
}
//模拟完毕后要在Activity中注册广播
//注册广播
netWorkChangeReceiver = newNetWorkChangeReceiver();
//广播接收器
IntentFilter intentFilter = newIntentFilter();//意图过滤器intentFilter.addAction("android.net.conn.CONNECTIVITY_CHANGE");//接受网络变化registerReceiver(netWorkChangeReceiver, intentFilter);//注册广播 谁接 谁收
//有注册就有取消注册
protected void onDestroy() {
super.onDestroy();
//注销广播
unregisterReceiver(netWorkChangeReceiver);
}
三、动态注册
//1.首先创建几个receiver对象，在清单文件里会生成对应的<receiver><receiver/> ，粗体部分则为自定义.name
<receiver
android:name=".receiver2.MyReceiver1"
android:enabled="true"
android:exported="true">
<intent-filter android:priority="80">
<action android:name="com.jiyun.action.ABC" />
</intent-filter>
</receiver>
//2.代码实现注册
//<1>标准广播
Intent intent =new Intent("com.jiyun.action.ABC");
intent.putExtra("name" ,"我是广播传过来的值"); //广播同样可以传值
sendBroadcast(intent);
//<2>有序广播——具有拦截广播的功能
Intent intent1 =new Intent("com.jiyun.action.ABC");
sendOrderedBroadcast(intent1 ,null);
//3.有序广播的拦截功能
abortBroadcast();//拦截广播
//4.广播中非页面之间的启动页面
Intent intentMain =new Intent(context, MainActivity.class);
intentMain.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK); //非页面之间启动页面， 需要自带加载任务栈
context.startActivity(intentMain);
