[TOC]

文章参考：https://blog.csdn.net/sinat_20059415/article/details/80584487

文章参考：https://blog.csdn.net/lylddinghffw/article/details/78219327

https://blog.csdn.net/lylddinghffw/article/details/80366791

文章参考：https://www.cnblogs.com/wangqiang9/p/10595417.html

源码分析：https://blog.csdn.net/lylddinghffw/article/details/80366791

前言：最近在处理Android O的应用crash和anr问题，其中遇到比较多的就是“Context.startForegroundService() did not then call Service.startForeground()”，将自己的处理心得总结回顾一下。

线上出现一个问题：

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
10-28 15:48:22.038 E/ActivityManager( 2480): ANR in com.baidu.car.faceos
10-28 15:48:22.038 E/ActivityManager( 2480): PID: 3892
10-28 15:48:22.038 E/ActivityManager( 2480): Reason: Context.startForegroundService() did not then call Service.startForeground()
10-28 15:48:22.038 E/ActivityManager( 2480): Load: 7.91 / 1.87 / 0.62
10-28 15:48:22.038 E/ActivityManager( 2480): CPU usage from 3ms to 8055ms later (2020-10-28 15:48:13.836 to 2020-10-28 15:48:21.888):
10-28 15:48:22.038 E/ActivityManager( 2480):   105% 2480/system_server: 86% user + 19% kernel / faults: 3686 minor 2 major
10-28 15:48:22.038 E/ActivityManager( 2480):   77% 4186/com.baidu.xiaoduos.launcher: 67% user + 10% kernel / faults: 15014 minor 6 major
10-28 15:48:22.038 E/ActivityManager( 2480):   70% 2644/com.android.systemui: 62% user + 7.8% kernel / faults: 21468 minor 25 major
10-28 15:48:22.038 E/ActivityManager( 2480):   65% 1523//init: 65% user + 0.6% kernel
10-28 15:48:22.038 E/ActivityManager( 2480):   29% 2576/com.baidu.privacy: 18% user + 11% kernel / faults: 2645 minor
10-28 15:48:22.038 E/ActivityManager( 2480):   16% 3612/com.baidu.iov.carid: 14% user + 2.1% kernel / faults: 2664 minor 1 major
10-28 15:48:22.038 E/ActivityManager( 2480):   15% 1170/mmcqd/0: 0% user + 15% kernel
10-28 15:48:22.038 E/ActivityManager( 2480):   14% 3892/com.baidu.car.faceos: 12% user + 2.1% kernel / faults: 2190 minor 5 major
10-28 15:48:22.038 E/ActivityManager( 2480):   9.5% 2144/surfaceflinger: 7% user + 2.4% kernel / faults: 439 minor
10-28 15:48:22.038 E/ActivityManager( 2480):   9.4% 3299/com.baidu.iov.dueros.activate: 8.5% user + 0.9% kernel / faults: 1952 minor
10-28 15:48:22.038 E/ActivityManager( 2480):   9.1% 2321/adbd: 1.9% user + 7.1% kernel / faults: 1555 minor
10-28 15:48:22.038 E/ActivityManager( 2480):   7.9% 2141/logd: 2.5% user + 5.3% kernel / faults: 11 minor
10-28 15:48:22.038 E/ActivityManager( 2480):   7.8% 3657/com.baidu.naviauto:remote: 6% user + 1.7% kernel / faults: 1896 minor 11 major
10-28 15:48:22.038 E/ActivityManager( 2480):   6.6% 3583/com.desay.kawa.fota: 5.7% user + 0.8% kernel / faults: 954 minor
10-28 15:48:22.038 E/ActivityManager( 2480):   6.3% 2166/android.hardware.sensors@1.0-service: 2.5% user + 3.7% kernel
10-28 15:48:22.038 E/ActivityManager( 2480):   5.3% 1058/irq/175-asm330l: 0% user + 5.3% kernel
10-28 15:48:22.038 E/ActivityManager( 2480):   4.6% 2160/android.hardware.graphics.composer@2.1-service.renesas: 0.9% user + 3.7% kernel / faults: 9 minor
10-28 15:48:22.038 E/ActivityManager( 2480):   4.3% 4021/com.baidu.che.codriver:remote: 3.3% user + 0.9% kernel / faults: 1543 minor 2 major
10-28 15:48:22.038 E/ActivityManager( 2480):   4.2% 3597/com.baidu.che.codriver: 3.4% user + 0.7% kernel / faults: 1179 minor
10-28 15:48:22.038 E/ActivityManager( 2480):   3.4% 1089/kworker/0:2: 0% user + 3.4% kernel

文章参考：https://blog.csdn.net/sinat_20059415/article/details/80584487

需要注意的是由于android8.0（API26）对后台运行做了限制，因此

如果处于后台时您的应用需要创建一个前台 Service，请使用 startForegroundService()。
如果 Service 容易引起用户注意，请将其设置为前台 Service。 例如，播放音频的 Service 始终应为前台 Service。 使用 startForegroundService()。

bindService启动服务的生命周期的执行顺序是onCreate–>onBind–>onUnBind–>onDestroy，与startService相比多次执行bindService启动Service并不会多次执行onBind函数。

已经设置了setForground之后，还是会出现崩溃

解决的方案：https://blog.csdn.net/KingofHacker/article/details/108093522

​