android如何获取正在运行的应用

可以使用ActivityManager类来获取正在运行的应用。以下是一个示例代码：

import android.app.ActivityManager; import android.content.Context; import android.content.pm.ApplicationInfo; import android.content.pm.PackageManager; import android.util.Log; import java.util.ArrayList; import java.util.List; public class RunningAppUtils { public static List<String> getRunningApps(Context context) { List<String> runningApps = new ArrayList<>(); PackageManager packageManager = context.getPackageManager(); ActivityManager activityManager = (ActivityManager) context.getSystemService(Context.ACTIVITY_SERVICE); List<ActivityManager.RunningAppProcessInfo> runningAppProcesses = activityManager.getRunningAppProcesses(); for (ActivityManager.RunningAppProcessInfo processInfo : runningAppProcesses) { try { ApplicationInfo appInfo = packageManager.getApplicationInfo(processInfo.processName, PackageManager.GET_META_DATA); String appName = (String) packageManager.getApplicationLabel(appInfo); runningApps.add(appName); } catch (PackageManager.NameNotFoundException e) { Log.e("RunningAppUtils", "Failed to get app name for process: " + processInfo.processName); } } return runningApps; } } 

你可以调用getRunningApps()方法来获取正在运行的应用的名称列表。