Android判断当前应用是否在前台

public static boolean isForeApp(Context context) {

ActivityManager activityManager = (ActivityManager) context.getSystemService(Context.ACTIVITY_SERVICE);
String packageName = context.getPackageName();
List<RecentTaskInfo> appTask = activityManager.getRecentTasks(Integer.MAX_VALUE, 1);

if (appTask == null) {
return false;
}

if (appTask.get(0).baseIntent.toString().contains(packageName)) {
return true;
}

return false;

}