android.app.usage.UsageStatsManager#queryUsageStats

Source File: AppLockService.java From lockit with Apache License 2.0

7 votes

private String currentPackage() {
    if (android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.LOLLIPOP) {
        UsageStatsManager usm = (UsageStatsManager) getSystemService(USAGE_STATS_SERVICE);
        long time = System.currentTimeMillis();
        List<UsageStats> appList = usm.queryUsageStats(UsageStatsManager.INTERVAL_DAILY,
                time - 1000 * 1000, time);
        if (appList != null && appList.size() > 0) {
            SortedMap<Long, UsageStats> mySortedMap = new TreeMap<Long, UsageStats>();
            for (UsageStats usageStats : appList) {
                mySortedMap.put(usageStats.getLastTimeUsed(),
                        usageStats);
            }
            if (mySortedMap != null && !mySortedMap.isEmpty()) {
                return mySortedMap.get(
                        mySortedMap.lastKey()).getPackageName();
            }
        }
    }

    return currentTask().topActivity.getPackageName();
}

Source File: PolicyUtils.java From Mount with GNU General Public License v3.0

6 votes

@SuppressWarnings("WrongConstant")
public static String getForegroundAppPackageName(Context context) {
    UsageStatsManager manager = (UsageStatsManager) context.getSystemService("usagestats");
    long time = System.currentTimeMillis();
    List<UsageStats> list = manager.queryUsageStats(UsageStatsManager.INTERVAL_DAILY,
            time - 1000 * 1000, time);
    if (list != null && !list.isEmpty()) {
        SortedMap<Long, UsageStats> map = new TreeMap<>();
        for (UsageStats stats : list) {
            map.put(stats.getLastTimeUsed(), stats);
        }

        if (!map.isEmpty()) {
            return map.get(map.lastKey()).getPackageName();
        }
    }

    return null;
}

Source File: BackgroundDetectService.java From GrabQQPWD with Apache License 2.0

6 votes

@TargetApi(Build.VERSION_CODES.LOLLIPOP_MR1)
private String getTopActivityAfterLM() {
    try {
        UsageStatsManager usageStatsManager = (UsageStatsManager) getSystemService(Context.USAGE_STATS_SERVICE);
        long milliSecs = 60 * 1000;
        Date date = new Date();
        List<UsageStats> queryUsageStats = usageStatsManager.queryUsageStats(UsageStatsManager.INTERVAL_DAILY, date.getTime() - milliSecs, date.getTime());
        if (queryUsageStats.size() > 0) {
            return null;
        }
        long recentTime = 0;
        String recentPkg = "";
        for (int i = 0; i < queryUsageStats.size(); i++) {
            UsageStats stats = queryUsageStats.get(i);
            if (stats.getLastTimeStamp() > recentTime) {
                recentTime = stats.getLastTimeStamp();
                recentPkg = stats.getPackageName();
            }
        }
        return recentPkg;
    } catch (Exception e) {
        e.printStackTrace();
    }
    return "";
}

Source File: ProcessManagerEngine.java From MobileGuard with MIT License

6 votes

/**
 * get current task top app package name
 * @param context
 * @param am
 * @return the top app package name
 */
public static String getTaskTopAppPackageName(Context context, ActivityManager am) {
    String packageName = "";
    // if the sdk >= 21. It can only use getRunningAppProcesses to get task top package name
    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
        UsageStatsManager usage = (UsageStatsManager)context.getSystemService(Context.USAGE_STATS_SERVICE);
        long time = System.currentTimeMillis();
        List<UsageStats> stats = usage.queryUsageStats(UsageStatsManager.INTERVAL_DAILY, time - 1000 * 10, time);
        if (stats != null) {
            SortedMap<Long, UsageStats> runningTask = new TreeMap<Long,UsageStats>();
            for (UsageStats usageStats : stats) {
                runningTask.put(usageStats.getLastTimeUsed(), usageStats);
            }
            if (runningTask.isEmpty()) {
                return null;
            }
            packageName =  runningTask.get(runningTask.lastKey()).getPackageName();
        }
    } else {// if sdk <= 20, can use getRunningTasks
        List<ActivityManager.RunningTaskInfo> infos = am.getRunningTasks(1);
        packageName = infos.get(0).topActivity.getPackageName();
    }
    return packageName;
}

Source File: TaskbarController.java From Taskbar with Apache License 2.0

6 votes

@TargetApi(Build.VERSION_CODES.LOLLIPOP_MR1)
private List<AppEntry> getAppEntriesUsingUsageStats() {
    UsageStatsManager mUsageStatsManager = (UsageStatsManager) context.getSystemService(Context.USAGE_STATS_SERVICE);
    List<UsageStats> usageStatsList = mUsageStatsManager.queryUsageStats(UsageStatsManager.INTERVAL_BEST, searchInterval, System.currentTimeMillis());
    List<AppEntry> entries = new ArrayList<>();

    for(UsageStats usageStats : usageStatsList) {
        AppEntry newEntry = new AppEntry(
                usageStats.getPackageName(),
                null,
                null,
                null,
                false
        );

        newEntry.setTotalTimeInForeground(usageStats.getTotalTimeInForeground());
        newEntry.setLastTimeUsed(usageStats.getLastTimeUsed());
        entries.add(newEntry);
    }

    return entries;
}

Source File: MainService.java From More-For-GO with GNU General Public License v3.0

6 votes

@Override
public boolean isGoRunning() {
    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP_MR1) {
        UsageStatsManager usm = (UsageStatsManager) getSystemService(USAGE_STATS_SERVICE);
        long time = System.currentTimeMillis();
        List<UsageStats> appList = usm.queryUsageStats(UsageStatsManager.INTERVAL_DAILY, time - REFRESH_INTERVAL * REFRESH_INTERVAL, time);
        if (appList != null && appList.size() > 0) {
            SortedMap<Long, UsageStats> mySortedMap = new TreeMap<>();
            for (UsageStats usageStats : appList) {
                mySortedMap.put(usageStats.getLastTimeUsed(), usageStats);
            }
            if (!mySortedMap.isEmpty()) {
                String currentAppName = mySortedMap.get(mySortedMap.lastKey()).getPackageName();
                return (currentAppName.equals("com.android.systemui") || currentAppName.equals("com.tomer.poke.notifier") || currentAppName.equals(getPackageName())) ? isGoOpen : currentAppName.equals(Constants.GOPackageName);
            }
        }
    } else {
        ActivityManager am = (ActivityManager) getBaseContext().getSystemService(ACTIVITY_SERVICE);
        return am.getRunningTasks(1).get(0).topActivity.getPackageName().equals(Constants.GOPackageName);
    }
    return isGoOpen;
}

Source File: AccessibilityUtil.java From RelaxFinger with GNU General Public License v2.0

5 votes

@TargetApi(Build.VERSION_CODES.LOLLIPOP)
public static boolean isUsageAccess() {
    long ts = System.currentTimeMillis();
    UsageStatsManager usageStatsManager = (UsageStatsManager)
            context.getSystemService(USAGE_STATS_SERVICE);
    List queryUsageStats = usageStatsManager.queryUsageStats(
            UsageStatsManager.INTERVAL_BEST, 0, ts);
    if (queryUsageStats == null || queryUsageStats.isEmpty()) {
        return false;
    }
    return true;
}

Source File: RunningTasksLollipop.java From AcDisplay with GNU General Public License v2.0

5 votes

@SuppressWarnings("ResourceType")
@Nullable
private SortedMap<Long, UsageStats> getUsageStats(@NonNull Context context)
        throws SecurityException {
    UsageStatsManager usm = (UsageStatsManager) context.getSystemService(USAGE_STATS_MANAGER);

    // We get usage stats for the last 30 seconds
    final long timeEnd = System.currentTimeMillis();
    final long timeBegin = timeEnd - 30 * 1000; // +30 sec.
    List<UsageStats> statsList = usm.queryUsageStats(UsageStatsManager.INTERVAL_DAILY,
            timeBegin,
            timeEnd);

    if (statsList != null) {
        // Sort the stats by the last time used
        SortedMap<Long, UsageStats> statsSortedMap = new TreeMap<>();
        for (final UsageStats usageStats : statsList) {
            // Filter system decor apps
            if ("com.android.systemui".equals(usageStats.getPackageName())) {
                continue;
            }

            statsSortedMap.put(usageStats.getLastTimeUsed(), usageStats);
        }
        return statsSortedMap;
    }
    return null;
}

Source File: AppInfoEngine.java From AppPlus with MIT License

5 votes

@Deprecated
@TargetApi(Build.VERSION_CODES.LOLLIPOP)
public List<UsageStats> getUsageStatsList(){
    UsageStatsManager usm = getUsageStatsManager();
    Calendar calendar = Calendar.getInstance();
    long endTime = calendar.getTimeInMillis();
    calendar.add(Calendar.MONTH, -1);
    long startTime = calendar.getTimeInMillis();
    List<UsageStats> usageStatsList = usm.queryUsageStats(UsageStatsManager.INTERVAL_DAILY,startTime,endTime);
    return usageStatsList;
}

Source File: UStats.java From AppPlus with MIT License

5 votes

public static List<UsageStats> getUsageStatsList(Context context){
    UsageStatsManager usm = getUsageStatsManager(context);
    Calendar calendar = Calendar.getInstance();
    long endTime = calendar.getTimeInMillis();

    long startTime = calendar.getTimeInMillis()-60*60*1000;
    
    List<UsageStats> usageStatsList = usm.queryUsageStats(UsageStatsManager.INTERVAL_DAILY,startTime,endTime);
    return usageStatsList;
}

Source File: UStats.java From batteryhub with Apache License 2.0

5 votes

@TargetApi(21)
public static List<UsageStats> getUsageStatsList(final Context context) {
    UsageStatsManager usm = getUsageStatsManager(context);
    Calendar calendar = Calendar.getInstance();
    calendar.add(Calendar.MONTH, -1);
    long startTime = calendar.getTimeInMillis();
    long endTime = System.currentTimeMillis();

    return usm.queryUsageStats(UsageStatsManager.INTERVAL_DAILY, startTime, endTime);
}

Source File: Tools.java From Hangar with GNU General Public License v3.0

5 votes

@TargetApi(21)
public static List<UsageStats> getUsageStats(Context context) {
    final UsageStatsManager usageStatsManager = (UsageStatsManager)context.getSystemService(USAGE_STATS_SERVICE_NAME); // Context.USAGE_STATS_SERVICE);
    long time = System.currentTimeMillis();

    List<UsageStats> stats = usageStatsManager.queryUsageStats(UsageStatsManager.INTERVAL_DAILY, time - USAGE_STATS_QUERY_TIMEFRAME, time);

    if (stats.size() > 1) {
        Collections.sort(stats, new Tools.UsageStatsComparator());
    }

    return stats;

}

Source File: CurrentAppResolver.java From always-on-amoled with GNU General Public License v3.0

5 votes

@TargetApi(Build.VERSION_CODES.LOLLIPOP_MR1)
private String getActivePackages() {
    UsageStatsManager usm = (UsageStatsManager) context.getSystemService(Context.USAGE_STATS_SERVICE);
    long time = System.currentTimeMillis();
    List<UsageStats> appList = usm.queryUsageStats(UsageStatsManager.INTERVAL_DAILY, time - 200 * 200, time);
    if (appList != null && appList.size() > 0) {
        SortedMap<Long, UsageStats> mySortedMap = new TreeMap<>();
        for (UsageStats usageStats : appList) {
            mySortedMap.put(usageStats.getLastTimeUsed(), usageStats);
        }
        return mySortedMap.get(mySortedMap.lastKey()).getPackageName();
    }
    return context.getPackageName();
}

Source File: SettingsFragment.java From ToDoList with Apache License 2.0

5 votes

/**
 * 判断“查看应用使用情况”是否开启
 * @return
 */
private boolean isNoSwitch() {
    long ts = System.currentTimeMillis();
    if(Build.VERSION.SDK_INT >=21){
        //noinspection ResourceType
        usageStatsManager = (UsageStatsManager)getActivity().getApplicationContext().getSystemService("usagestats");
        queryUsageStats = usageStatsManager.queryUsageStats(UsageStatsManager.INTERVAL_BEST, 0, ts);
    }
    if (queryUsageStats == null || queryUsageStats.isEmpty()) {
        return false;
    }
    return true;
}

Source File: BaseMethod.java From KeyBlocker with GNU General Public License v3.0

5 votes

public static String[] getCurrentPackageByManager(Context context) {
    String pkg_name = null;
    String act_name = null;
    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP_MR1) {
        UsageStatsManager usageStatsManager = (UsageStatsManager) context.getSystemService(Context.USAGE_STATS_SERVICE);
        if (usageStatsManager != null) {
            long now = System.currentTimeMillis();
            List<UsageStats> stats = usageStatsManager.queryUsageStats(UsageStatsManager.INTERVAL_BEST, now - 6000, now);
            if (stats != null && !stats.isEmpty()) {
                int top = 0;
                for (int last = 0; last < stats.size(); last++) {
                    if (stats.get(last).getLastTimeUsed() > stats.get(top).getLastTimeUsed()) {
                        top = last;
                    }
                }
                pkg_name = stats.get(top).getPackageName();
            }
        }
    } else if (Build.VERSION.SDK_INT <= Build.VERSION_CODES.LOLLIPOP) {
        ActivityManager activityManager = (ActivityManager) context.getSystemService(Context.ACTIVITY_SERVICE);
        @SuppressWarnings("deprecation")
        List list = activityManager.getRunningTasks(1);
        pkg_name = ((ActivityManager.RunningTaskInfo) list.get(0)).topActivity.getPackageName();
        act_name = ((ActivityManager.RunningTaskInfo) list.get(0)).topActivity.getClassName();
    }
    if (pkg_name == null) {
        pkg_name = "";
    }
    if (act_name == null) {
        act_name = pkg_name;
    }
    if (act_name.contains("$")) {
        act_name = act_name.replace("$", ".");
    }
    return new String[]{pkg_name, act_name};
}

Source File: Stats.java From flutter-plugins with MIT License

5 votes

/** Check if permission for usage statistics is required,
 * by fetching usage statistics since the beginning of time
 */
@SuppressWarnings("ResourceType")
public static boolean permissionRequired(Context context) {
    UsageStatsManager usm = (UsageStatsManager) context.getSystemService("usagestats");
    Calendar calendar = Calendar.getInstance();
    long endTime = calendar.getTimeInMillis();
    long startTime = 0;
    List<UsageStats> stats = usm.queryUsageStats(UsageStatsManager.INTERVAL_DAILY, startTime, endTime);
    // If list is empty then permission ios required
    return stats.isEmpty();
}

Source File: MainActivity.java From ToDoList with Apache License 2.0

5 votes

/**
 * 判断“查看应用使用情况”是否开启
 * @return
 */
private boolean isNoSwitch() {
    long ts = System.currentTimeMillis();
    if(Build.VERSION.SDK_INT >=21){
        //noinspection ResourceType
        usageStatsManager = (UsageStatsManager)this.getApplicationContext().getSystemService("usagestats");
        queryUsageStats = usageStatsManager.queryUsageStats(UsageStatsManager.INTERVAL_BEST, 0, ts);
    }
    if (queryUsageStats == null || queryUsageStats.isEmpty()) {
        return false;
    }
    return true;
}

Source File: ProcessUtils.java From AndroidUtilCode with Apache License 2.0

4 votes

/**
 * Return the foreground process name.
 * <p>Target APIs greater than 21 must hold
 * {@code <uses-permission android:name="android.permission.PACKAGE_USAGE_STATS" />}</p>
 *
 * @return the foreground process name
 */
public static String getForegroundProcessName() {
    ActivityManager am =
            (ActivityManager) Utils.getApp().getSystemService(Context.ACTIVITY_SERVICE);
    //noinspection ConstantConditions
    List<ActivityManager.RunningAppProcessInfo> pInfo = am.getRunningAppProcesses();
    if (pInfo != null && pInfo.size() > 0) {
        for (ActivityManager.RunningAppProcessInfo aInfo : pInfo) {
            if (aInfo.importance
                    == ActivityManager.RunningAppProcessInfo.IMPORTANCE_FOREGROUND) {
                return aInfo.processName;
            }
        }
    }
    if (android.os.Build.VERSION.SDK_INT > android.os.Build.VERSION_CODES.LOLLIPOP) {
        PackageManager pm = Utils.getApp().getPackageManager();
        Intent intent = new Intent(Settings.ACTION_USAGE_ACCESS_SETTINGS);
        List<ResolveInfo> list =
                pm.queryIntentActivities(intent, PackageManager.MATCH_DEFAULT_ONLY);
        Log.i("ProcessUtils", list.toString());
        if (list.size() <= 0) {
            Log.i("ProcessUtils",
                    "getForegroundProcessName: noun of access to usage information.");
            return "";
        }
        try {// Access to usage information.
            ApplicationInfo info =
                    pm.getApplicationInfo(Utils.getApp().getPackageName(), 0);
            AppOpsManager aom =
                    (AppOpsManager) Utils.getApp().getSystemService(Context.APP_OPS_SERVICE);
            if (aom.checkOpNoThrow(AppOpsManager.OPSTR_GET_USAGE_STATS,
                    info.uid,
                    info.packageName) != AppOpsManager.MODE_ALLOWED) {
                intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
                Utils.getApp().startActivity(intent);
            }
            if (aom.checkOpNoThrow(AppOpsManager.OPSTR_GET_USAGE_STATS,
                    info.uid,
                    info.packageName) != AppOpsManager.MODE_ALLOWED) {
                Log.i("ProcessUtils",
                        "getForegroundProcessName: refuse to device usage stats.");
                return "";
            }
            UsageStatsManager usageStatsManager = (UsageStatsManager) Utils.getApp()
                    .getSystemService(Context.USAGE_STATS_SERVICE);
            List<UsageStats> usageStatsList = null;
            if (usageStatsManager != null) {
                long endTime = System.currentTimeMillis();
                long beginTime = endTime - 86400000 * 7;
                usageStatsList = usageStatsManager
                        .queryUsageStats(UsageStatsManager.INTERVAL_BEST,
                                beginTime, endTime);
            }
            if (usageStatsList == null || usageStatsList.isEmpty()) return "";
            UsageStats recentStats = null;
            for (UsageStats usageStats : usageStatsList) {
                if (recentStats == null
                        || usageStats.getLastTimeUsed() > recentStats.getLastTimeUsed()) {
                    recentStats = usageStats;
                }
            }
            return recentStats == null ? null : recentStats.getPackageName();
        } catch (PackageManager.NameNotFoundException e) {
            e.printStackTrace();
        }
    }
    return "";
}

Source File: ProcessUtils.java From Android-UtilCode with Apache License 2.0

4 votes

/**
 * 获取前台线程包名
 * <p>当不是查看当前App，且SDK大于21时，
 * 需添加权限 {@code <uses-permission android:name="android.permission.PACKAGE_USAGE_STATS"/>}</p>
 *
 * @return 前台应用包名
 */
public static String getForegroundProcessName() {
    ActivityManager manager = (ActivityManager) Utils.getContext().getSystemService(Context.ACTIVITY_SERVICE);
    List<ActivityManager.RunningAppProcessInfo> pInfo = manager.getRunningAppProcesses();
    if (pInfo != null && pInfo.size() != 0) {
        for (ActivityManager.RunningAppProcessInfo aInfo : pInfo) {
            if (aInfo.importance == ActivityManager.RunningAppProcessInfo.IMPORTANCE_FOREGROUND) {
                return aInfo.processName;
            }
        }
    }
    if (android.os.Build.VERSION.SDK_INT > android.os.Build.VERSION_CODES.LOLLIPOP) {
        PackageManager packageManager = Utils.getContext().getPackageManager();
        Intent intent = new Intent(Settings.ACTION_USAGE_ACCESS_SETTINGS);
        List<ResolveInfo> list = packageManager.queryIntentActivities(intent, PackageManager.MATCH_DEFAULT_ONLY);
        System.out.println(list);
        if (list.size() > 0) {// 有"有权查看使用权限的应用"选项
            try {
                ApplicationInfo info = packageManager.getApplicationInfo(Utils.getContext().getPackageName(), 0);
                AppOpsManager aom = (AppOpsManager) Utils.getContext().getSystemService(Context.APP_OPS_SERVICE);
                if (aom.checkOpNoThrow(AppOpsManager.OPSTR_GET_USAGE_STATS, info.uid, info.packageName) != AppOpsManager.MODE_ALLOWED) {
                    Utils.getContext().startActivity(intent);
                }
                if (aom.checkOpNoThrow(AppOpsManager.OPSTR_GET_USAGE_STATS, info.uid, info.packageName) != AppOpsManager.MODE_ALLOWED) {
                    LogUtils.d("getForegroundApp", "没有打开\"有权查看使用权限的应用\"选项");
                    return null;
                }
                UsageStatsManager usageStatsManager = (UsageStatsManager) Utils.getContext().getSystemService(Context.USAGE_STATS_SERVICE);
                long endTime = System.currentTimeMillis();
                long beginTime = endTime - 86400000 * 7;
                List<UsageStats> usageStatses = usageStatsManager.queryUsageStats(UsageStatsManager.INTERVAL_BEST, beginTime, endTime);
                if (usageStatses == null || usageStatses.isEmpty()) return null;
                UsageStats recentStats = null;
                for (UsageStats usageStats : usageStatses) {
                    if (recentStats == null || usageStats.getLastTimeUsed() > recentStats.getLastTimeUsed()) {
                        recentStats = usageStats;
                    }
                }
                return recentStats == null ? null : recentStats.getPackageName();
            } catch (PackageManager.NameNotFoundException e) {
                e.printStackTrace();
            }
        } else {
            LogUtils.d("getForegroundApp", "无\"有权查看使用权限的应用\"选项");
        }
    }
    return null;
}

Source File: AppUtils.java From Common with Apache License 2.0

4 votes

private static String getForegroundProcessName(final Context context) {
    ActivityManager am =
            (ActivityManager) context.getSystemService(Context.ACTIVITY_SERVICE);
    List<ActivityManager.RunningAppProcessInfo> pInfo = am.getRunningAppProcesses();
    if (pInfo != null && pInfo.size() > 0) {
        for (ActivityManager.RunningAppProcessInfo aInfo : pInfo) {
            if (aInfo.importance
                    == ActivityManager.RunningAppProcessInfo.IMPORTANCE_FOREGROUND) {
                return aInfo.processName;
            }
        }
    }
    if (android.os.Build.VERSION.SDK_INT > android.os.Build.VERSION_CODES.LOLLIPOP) {
        PackageManager pm = context.getPackageManager();
        Intent intent = new Intent(Settings.ACTION_USAGE_ACCESS_SETTINGS);
        List<ResolveInfo> list =
                pm.queryIntentActivities(intent, PackageManager.MATCH_DEFAULT_ONLY);
        Log.i("ProcessUtils", list.toString());
        if (list.size() <= 0) {
            Log.i("ProcessUtils", "getForegroundProcessName: noun of access to usage information.");
            return "";
        }
        try {
            // Access to usage information.
            ApplicationInfo info = pm.getApplicationInfo(context.getPackageName(), 0);
            AppOpsManager aom = (AppOpsManager) context.getSystemService(Context.APP_OPS_SERVICE);
            if (aom.checkOpNoThrow(AppOpsManager.OPSTR_GET_USAGE_STATS, info.uid,
                    info.packageName) != AppOpsManager.MODE_ALLOWED) {
                intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
                context.startActivity(intent);
            }
            if (aom.checkOpNoThrow(AppOpsManager.OPSTR_GET_USAGE_STATS,
                    info.uid,
                    info.packageName) != AppOpsManager.MODE_ALLOWED) {
                Log.i("ProcessUtils", "getForegroundProcessName: refuse to device usage stats.");
                return "";
            }
            UsageStatsManager usageStatsManager = (UsageStatsManager) context
                    .getSystemService(Context.USAGE_STATS_SERVICE);
            List<UsageStats> usageStatsList = null;
            if (usageStatsManager != null) {
                long endTime = System.currentTimeMillis();
                long beginTime = endTime - 86400000 * 7;
                usageStatsList = usageStatsManager.queryUsageStats(UsageStatsManager.INTERVAL_BEST,
                        beginTime, endTime);
            }
            if (usageStatsList == null || usageStatsList.isEmpty()) return null;
            UsageStats recentStats = null;
            for (UsageStats usageStats : usageStatsList) {
                if (recentStats == null
                        || usageStats.getLastTimeUsed() > recentStats.getLastTimeUsed()) {
                    recentStats = usageStats;
                }
            }
            return recentStats == null ? null : recentStats.getPackageName();
        } catch (PackageManager.NameNotFoundException e) {
            e.printStackTrace();
        }
    }
    return "";
}

Java Code Examples for android.app.usage.UsageStatsManager#queryUsageStats()