Android 如何获取最顶端的Top Activity

2025-04-23 01:31:15

推荐回答（2个）

回答1：

你这句只是获得当前运行的Activity名字··没用的。。。。要得到事例啊··至于怎么得到事例来用··我也不清楚··正在找··哎。。。

回答2：

public static class TopActivityInfo {
public String packageName = "";
public String topActivityName = "";
}
[java] view plain copy
private TopActivityInfo getTopActivityInfo() {
ActivityManager manager = ((ActivityManager)GlobalConfig.getContext().getSystemService(Context.ACTIVITY_SERVICE));
TopActivityInfo info = new TopActivityInfo();
if (Build.VERSION.SDK_INT >= 21) {
List pis = manager.getRunningAppProcesses();
ActivityManager.RunningAppProcessInfo topAppProcess = pis.get(0);
if (topAppProcess != null && topAppProcess.importance == ActivityManager.RunningAppProcessInfo.IMPORTANCE_FOREGROUND) {
info.packageName = topAppProcess.processName;
info.topActivityName = "";
}
} else {
//getRunningTasks() is deprecated since API Level 21 (Android 5.0)
List localList = manager.getRunningTasks(1);
ActivityManager.RunningTaskInfo localRunningTaskInfo = (ActivityManager.RunningTaskInfo)localList.get(0);
info.packageName = localRunningTaskInfo.topActivity.getPackageName();
info.topActivityName = localRunningTaskInfo.topActivity.getClassName();
}
return info;
}