Question

以下是我用于获取每个已安装应用程序的UsageStats列表的代码。

List<UsageStats> usageStatsList =
                            getUsageStatistics(UsageStatsManager.INTERVAL_DAILY);

SortedMap<Long, UsageStats> mySortedMap = new TreeMap<Long, UsageStats>();

Collections.sort(usageStatsList, new SortListComparatorDesc());

这是SortListComparotorDesc类。

import android.annotation.TargetApi;
import android.app.usage.UsageStats;
import android.os.Build;
import java.util.Comparator;

@TargetApi(Build.VERSION_CODES.LOLLIPOP)
class SortListComparotorDesc implements Comparator<UsageStats> {
@Override
  public int compare(UsageStats left, UsageStats right) {

    return (int) (right.getLastTimeUsed() - left.getLastTimeUsed());
    // return Long.compare(right.getLastTimeUsed(), left.getLastTimeUsed());
}
}

这是我的Logcat：

02-13 17:39:24.774 5029-5029/com.app.usagelistapp E/TimeInforground: Time in Foreground = 675786
02-13 17:39:24.783 5029-5029/com.app.usagelistapp E/TimeInforground: Time in Foreground = 2560117
02-13 17:39:24.793 5029-5029/com.app.usagelistapp E/TimeInforground: Time in Foreground = 503115
02-13 17:39:24.802 5029-5029/com.app.usagelistapp E/TimeInforground: Time in Foreground = 0
02-13 17:39:24.810 5029-5029/com.app.usagelistapp E/TimeInforground: Time in Foreground = 2016255
02-13 17:39:24.819 5029-5029/com.app.usagelistapp E/TimeInforground: Time in Foreground = 277573
02-13 17:39:24.828 5029-5029/com.app.usagelistapp E/TimeInforground: Time in Foreground = 27227
02-13 17:39:27.880 5029-5029/com.app.usagelistapp E/TimeInforground: Time in Foreground = 90220
02-13 17:39:29.483 5029-5029/com.app.usagelistapp E/TimeInforground: Time in Foreground = 257245
02-13 17:39:32.668 5029-5029/com.app.usagelistapp E/TimeInforground: Time in Foreground = 5199
02-13 17:39:32.951 5029-5029/com.app.usagelistapp E/TimeInforground: Time in Foreground = 1364625
02-13 17:39:35.295 5029-5029/com.app.usagelistapp E/TimeInforground: Time in Foreground = 99522

如何对UsageStats列表相应地排序TimeInForeground？

0 个答案: