Context.startForegroundService() did not then call Service.startForeground(): ServiceRecord 1. startForegroundService,而这个API比较特殊,它要求我们在调用之后,收到 onStartCommand 回调后 5s内必须调用 startForeground, 否则会有ANR,而如果在调用 startForeground 之前,调用了 stopService 或者 stopSelf ,则会直接抛...
一般来说,一个Service默认情况下是background模式,这意味着当系统需要腾出更多的内存空间给前台应用的时候(或者系统休眠一段时间之后)就会把这些background模式的Service给杀死掉,并回收其内存空间。但是,如果把一个Service设置为foreground模式的话,就可以避免被回收这个问题。 拿音乐播放器来举个例子,一般的做法是定义...
一般来说,一个Service默认情况下是background模式,这意味着当系统需要腾出更多的内存空间给前台应用的时候(或者系统休眠一段时间之后)就会把这些background模式的Service给杀死掉,并回收其内存空间。但是,如果把一个Service设置为foreground模式的话,就可以避免被回收这个问题。 拿音乐播放器来举个例子,一般的做法是定义...
On Android 11 (API level 30) and higher, if your app starts a foreground service whilerunning in the background, the service has the following access restrictions: Unless the user has granted theACCESS_BACKGROUND_LOCATIONpermission to your app, the service cannot access location. The service ca...
需要在AndroidManifest 添加 前台服务的权限 : <uses-permission android:name="android.permission.FOREGROUND_SERVICE"/> FOREGROUND_SERVICE Added in API level 28 Android 9.0 public static final String FOREGROUND_SERVICE Allows a regular application to use Service.startForeground. ...
Android Foreground Service 为了防止后台服务被系统干掉,我们需要将服务提升为前台服务。 示例代码: 需要在AndroidManifest添加 前台服务的权限 :<uses-permission android:name="android.permission.FOREGROUND_SERVICE"/> FOREGROUND_SERVICEAdded inAPIlevel 28Android 9.0public static final String FOREGROUND_SERVICE ...
2011.07.12——— android Foreground service foreground service ,即在前台显示service,就是在状态栏显示service,借助于notification. 效果如图所示: 1、service package com.example.android.apis.app; import android.app.Noti ...
Exception thrown when an app tries to start a foreground Service when it's not allowed to do so.C# 複製 [Android.Runtime.Register("android/app/ForegroundServiceStartNotAllowedException", ApiSince=31, DoNotGenerateAcw=true)] public sealed class ForegroundServiceStartNotAllowedException : Android....
If the service has become a foreground service by calling #startForeground(int, Notification) or #startForeground(int, Notification, int), #getForegroundServiceType() returns the current foreground service type.
Android.Hardware.Location Android.Hardware.Usb Android.Health.Connect Android.Health.Connect.ChangeLog Android.Health.Connect.DataTypes Android.Health.Connect.DataTypes.Units Android.Icu.Lang Android.Icu.Math Android.Icu.Number Android.Icu.Text Android.Icu.Util Android.InputMethodServices Android.Locations An...