如何从UsageStats API类中获取mLaunchCount的值？

Question

在我的应用中，我必须获取应用使用情况统计信息，包括应用名称，总前景持续时间和启动计数。但是我无法获得mLaunchCount，让任何人都知道获得价值的替代方法。

以下是获取应用名称和前台时间的代码：

UsageStatsManager mUsageStatsManager = (UsageStatsManager)getSystemService(Context.USAGE_STATS_SERVICE);
        Calendar cal = Calendar.getInstance();
        cal.add(Calendar.YEAR, -1);
        List<UsageStats> queryUsageStats = mUsageStatsManager
                .queryUsageStats(UsageStatsManager.INTERVAL_DAILY, cal.getTimeInMillis(),
                        System.currentTimeMillis());
        for(int i=0;i<queryUsageStats.size();i++){
            UsageStats data = queryUsageStats.get(i);
            PackageManager packageManager= getApplicationContext().getPackageManager();
            String appName;
            try {
                appName = (String) packageManager.getApplicationLabel(packageManager.getApplicationInfo(data.getPackageName(), PackageManager.GET_META_DATA));
            } catch (final PackageManager.NameNotFoundException e) {
                appName = "Unknown";
            }
            str = str.append(appName+"  "+data.getTotalTimeInForeground()/1000+"s  "+"\n");
        }

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