How to deal with background crash in Android

本篇内容主要讲解"Android中如何处理后台崩溃"，感兴趣的朋友不妨来看看。本文介绍的方法操作简单快捷，实用性强。下面就让小编来带大家学习"Android中如何处理后台崩溃"吧!

原理其实蛮简单的。

检测是否为后台

如果是后台则杀掉该进程，否则执行默认的崩溃处理

检测是否为后台，这里我们以进程中Activity的数量作为判断标准

当activity onStart时activityCount自增

当Activity onStop时activityCount自减

当activityCount为0，我们则认为应用处于后台状态

具体实现如下：

object ActivityLifecycleCallbackImp: Application.ActivityLifecycleCallbacks { var activityCount: Int = 0 override fun onActivityPaused(activity: Activity?) { } override fun onActivityResumed(activity: Activity?) { } override fun onActivityStarted(activity: Activity?) { activityCount ++ } override fun onActivityDestroyed(activity: Activity?) { } override fun onActivitySaveInstanceState(activity: Activity?, outState: Bundle?) { } override fun onActivityStopped(activity: Activity?) { activityCount-- } override fun onActivityCreated(activity: Activity?, savedInstanceState: Bundle?) { } }

在Application中进行注册：

class MyApplication : Application() { override fun onCreate() { super.onCreate() registerActivityLifecycleCallbacks(ActivityLifecycleCallbackImp) } }

剩下的就是设置一个自定义的未捕获异常处理处理器：

val defaultHandler = Thread.getDefaultUncaughtExceptionHandler() Thread.setDefaultUncaughtExceptionHandler { thread, exception -> exception.printStackTrace() val isBackground = ActivityLifecycleCallbackImp.activityCount == 0 if (isBackground) { Log.d("MyApplication", "isBackground just kill the process without annoying users") android.os.Process.killProcess(android.os.Process.myPid()) } else { defaultHandler.uncaughtException(thread, exception) } }到此，相信大家对"Android中如何处理后台崩溃"有了更深的了解，不妨来实际操作一番吧!这里是网站，更多相关内容可以进入相关频道进行查询，关注我们，继续学习!