Android的棒棒糖知道，如果应用程序的使用情况统计访问 [英] Android Lollipop know if app as Usage Stats access

问题描述

由于Android棒棒糖，我们现在访问的应用程序使用统计信息的API。然而，你的应用程序必须由用户被授予这些权限。

Since Android Lollipop, we have now an API for accessing apps usage stats. However, your app must be granted those permissions by the user.

我知道，将用户重定向到使用Settings.ACTION_USAGE_ACCESS_SETTINGS这些设置。

I know that for redirecting the user to those settings using Settings.ACTION_USAGE_ACCESS_SETTINGS.

现在，我的问题是你怎么知道用户已授予您的权限，这样就可以阻止他重定向的设置。

Now, my question is how do you know the user has granted you those permissions so that you can stop redirecting him to the settings.

谢谢！

推荐答案

您可以简单地查询usagestats每天的间隔时间和结束时间当前的时间，如果没有什么回报，这意味着用户处理不当授予的权限

you can simply query usagestats with daily interval and end time the current time and if nothing is returns this means the user hasnt granted permissions

@TargetApi(Build.VERSION_CODES.LOLLIPOP)
public boolean doIHavePermission(){


    final UsageStatsManager usageStatsManager = (UsageStatsManager) context.getSystemService("usagestats");
    final List<UsageStats> queryUsageStats = usageStatsManager.queryUsageStats(UsageStatsManager.INTERVAL_DAILY, 0,  System.currentTimeMillis());

    return !queryUsageStats.isEmpty();
}

与开始日期0和结束日期每日间隔当前的时间必须至少回今天usage.So它将是空的只有未授予权限

Daily interval with start date 0 and end date the current time must at least return todays usage.So it will be empty only if permissions are not granted

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