如何在Android中以编程方式查找当前正在运行的应用程序？ [英] How to find the currently running applications programmatically in Android?

问题描述

我是Android新手。我正在开发应用程序，必须获取有关当前正在前台运行的应用程序的信息。

I am very new to Android. I am working on application that must get the information about the applications currently running on foreground.

这意味着如果用户启动任何应用程序，我的应用程序应该捕获已启动的应用程序信息，直到我的应用程序不应该中断已启动的应用程序。

It means if user launches any applications, my application should capture the launched application information, by the time my application shouldn't interrupt launched application.

示例：如果用户启动浏览器应用程序，我的应用程序应在日志上打印浏览器应用程序信息。

Example: If user launches browser application my application should print browser application information on log.

我该怎么做？

推荐答案

ActivityManager activity_manager = (ActivityManager) context
                .getSystemService(Activity.ACTIVITY_SERVICE);

ActivityManager 有方法 getRunningTasks（INT）。 ActivityManager 似乎是您要搜索的解决方案。

ActivityManager has method getRunningTasks(int). ActivityManager seems to be the solution you are searching for.

final ActivityManager activityManager = (ActivityManager) getSystemService(Context.ACTIVITY_SERVICE);
final List<RunningTaskInfo> recentTasks = activityManager.getRunningTasks(Integer.MAX_VALUE);

for (int i = 0; i < recentTasks.size(); i++) 
{
    Log.d("Executed app", "Application executed : " +recentTasks.get(i).baseActivity.toShortString()+ "\t\t ID: "+recentTasks.get(i).id+"");         
}

另外，看看以下帖子：
查看用户执行的Android最近任务

Also, have a look at following thread: See Android recent task executed by the user

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