android 判断activity是否在堆栈高层

ActivityManager manager = (ActivityManager) getSystemService(Context.ACTIVITY_SERVICE);String name = manager.getRunningTasks(1).get(0).topActivity.getClassName();return name.equals(ControlActivity.class.getName());

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? ? ?注意：getRunningTasks()方法需要权限，请在AndroidManifest.xml中加上

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<uses-permission android:name="android.permission.GET_TASKS" />

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