项目测试时发现的,在双击返回键关闭应用后(并未杀死后台)重新打开APP,其他手机都OK,但是8.0的手机会出现较频繁的crash。检查代码,问题锁定在重新开启应用时的startService()上。
查找资料说是Android 8.0 不再允许后台service直接通过startService方式去启动,否则就会引起IllegalStateException。而网上给出的解决方式大多是这样的:
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) { context.startForegroundService(new Intent(context, MyService.class)); } else { context.startService(new Intent(context, MyService.class)); }
然后必须在Myservice中调用startForeground():
@Override public void onCreate() { super.onCreate(); startForeground(1,new Notification()); }
不过可能是我代码本身的问题,使用上面代码之后应用报出RemoteServiceException: Bad notification for startForeground: java.lang.RuntimeException: invalid ch...
然后做了一些修改,其他的不变,只是在要开启的service中给notification添加 channelId:
public static final String CHANNEL_ID_STRING = "service_01"; @Override public void onCreate() { super.onCreate(); //适配8.0service NotificationManager notificationManager = (NotificationManager) MyApp.getInstance().getSystemService(Context.NOTIFICATION_SERVICE); NotificationChannel mChannel = null; if (android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.O) { mChannel = new NotificationChannel(CHANNEL_ID_STRING, getString(R.string.app_name), NotificationManager.IMPORTANCE_LOW); notificationManager.createNotificationChannel(mChannel); Notification notification = new Notification.Builder(getApplicationContext(), CHANNEL_ID_STRING).build(); startForeground(1, notification); } }
ok,可以正常跑起来了。
参考地址:https://blog.csdn.net/o279642707/article/details/82352431?utm_source=blogxgwz0