最近公司出现了一个Bug,Service在后台写log时候一分钟左右被杀死,或者运行一会就被杀死了,上网搜了一下原来是Android高版本为了保护电量,流量什么的,会在后台杀死这些Service,现在我的做法是在通知栏加一条通知,让他保证Service存活。
上代码,在Service的onCreate方法里写:
private String notificationId = "serviceid";
private String notificationName = "servicename";
private void showNotification(){
NotificationManager notificationManager = (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
//创建NotificationChannel
if(Build.VERSION.SDK_INT >= Build.VERSION_CODES.O){
NotificationChannel channel = new NotificationChannel(notificationId, notificationName, NotificationManager.IMPORTANCE_HIGH);
notificationManager.createNotificationChannel(channel);
}
startForeground(1,getNotification());
}
private Notification getNotification() {
Notification.Builder builder = new Notification.Builder(this)
.setSmallIcon(R.drawable.ic_launcher)//通知的图片
.setContentTitle("通知的标题")
.setContentText("通知的内容");
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
builder.setChannelId(notificationId);
}
Notification notification = builder.build();
return notification;
}
写完这些之后还需要添加一条权限:
<!--Android 9后台运行Service-->
<uses-permission android:name="android.permission.FOREGROUND_SERVICE" />