前言:
service作为Activity四大组件之一，其作用性也是不言而喻的，最近用到service发现一脸懵啊，写一篇文章来记录一下。
本文主要是写了一个类似墨迹天气启动后显示在通知栏的Service。主要是创建一个类去继承Service.代码实例如下：
public class WeatherServiceextends Service {
private final static StringTAG = WeatherService.class.getSimpleName();
private static final int NOTIFY_ID =123;
@RequiresApi(api = Build.VERSION_CODES.JELLY_BEAN)
@Override
public void onCreate() {
super.onCreate();
showNotification();
}
@RequiresApi(api = Build.VERSION_CODES.JELLY_BEAN)
public void showNotification() {
NotificationCompat.Builder mBuilder =new NotificationCompat.Builder(this).setSmallIcon(R.mipmap.ic_launcher).setContentTitle("天气").setContentText("今天晴朗");
Intent resultIntent =new Intent(this, MainActivity.class);
//创建任务栈
TaskStackBuilder stackBuilder = TaskStackBuilder.create(this);
stackBuilder.addParentStack(MainActivity.class);
stackBuilder.addNextIntent(resultIntent);
PendingIntent resultPendingIntent = stackBuilder.getPendingIntent(0, PendingIntent.FLAG_UPDATE_CURRENT);
mBuilder.setContentIntent(resultPendingIntent);
NotificationManager manager = (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
Notification notification = mBuilder.build();
manager.notify(NOTIFY_ID, notification);
startForeground(NOTIFY_ID, notification);
}
@Nullable
@Override
public IBinder onBind(Intent intent) {
return null;
}
}
然后不要忘记了在AndroidManifest下去注册该Service.
最后在Activity里面启动service就好了。
欢迎多多交流.