BrocastReceiver用法：
1、继承BroadcastReceiver类
2、重写onReceive函数(见最下面代码)
3、在Mainfest文件中注册receiver
<!-- 自定义BrocastReceiver -->
<receiver android:name=".MyBroadcastReceiver">
<intent-filter >
<action android:name="android.action.MyEx"/>
<category android:name="android.intent.category.DEFAULT"/>
</intent-filter>
</receiver>
private TextView mybu;
private MyBroadcastReceiver myBroadcastReceiver;
publicstaticfinal String ACTION1 = "android.action.MyEx";
publicstaticfinal String EXTRA1 = "extra";
@Override
protectedvoidonCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
mybu = (TextView) findViewById(R.id.mybu);
myBroadcastReceiver = new MyBroadcastReceiver();
}
publicvoid mybuClick(View v)
{
Intent intent = newIntent(ACTION1);
intent.putExtra(EXTRA1, "welldone");
sendBroadcast(intent);
}
一、在XML文件中使用onClick代替OnClickListener
<TextView
android:id="@+id/mybu"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@string/hello_world"
android:onClick="mybuClick"
android:clickable="true"
/>
二、Notification的使用：
publicclass MyBroadcastReceiver extends BroadcastReceiver{
@Override
publicvoidonReceive(Context context, Intent intent) {
String data = intent.getExtras().getString(MainActivity.EXTRA1);
//获得NotificationManager
NotificationManager manager = (NotificationManager) context.getSystemService(Context.NOTIFICATION_SERVICE);
//此方法已被废弃
// Notification notification = new Notification(R.drawable.icon3,"提醒",System.currentTimeMillis());
Notification.Builder builder = new Builder(context);
PendingIntent pendingIntent = PendingIntent.getActivity(context, 0,
new Intent(context,MainActivity.class) , 0);
builder.setSmallIcon(R.drawable.icon3)
.setWhen(System.currentTimeMillis())
.setContentTitle("通知")
.setContentText(data)
.setDefaults(Notification.DEFAULT_LIGHTS | Notification.DEFAULT_SOUND | Notification.DEFAULT_VIBRATE)
.setContentIntent(pendingIntent);
manager.notify(3, builder.build());
//builder.getNotification();方法也被废弃了，注意使用build()方法
}
}