Question

我刚刚测试了我的应用程序和CM，ATM Android助手等等。所有这些都无法获得正在运行的进程列表，但它们在预操作系统版本上运行良好。那么Android M（5.1.1）正在发生什么？请帮忙！

am = (ActivityManager) getContext().getSystemService(Context.ACTIVITY_SERVICE);
List<RunningAppProcessInfo> list = am.getRunningAppProcesses();
Log.i(TAG, "LQ::examine list.size()=" + list.size());

Answer 1

我决定改用getRunningServices！

Du Speed Booster＆amp; Power Clean使用getRunningServices代替，也许将来不推荐使用getRunningAppProcesses。

谢谢谷歌，谢谢你的字母。

    Hashtable<String, List<ActivityManager.RunningServiceInfo>> hashtable = new Hashtable<String, List<ActivityManager.RunningServiceInfo>>();
    ActivityManager am = (ActivityManager) getContext().getSystemService(Context.ACTIVITY_SERVICE);
    for (ActivityManager.RunningServiceInfo rsi : am.getRunningServices(Integer.MAX_VALUE)) {
        if (isCanceled()) {
            return;
        }

        String pkgName = rsi.service.getPackageName();
        if (hashtable.get(pkgName) == null) {
            List<ActivityManager.RunningServiceInfo> list = new ArrayList<ActivityManager.RunningServiceInfo>();
            list.add(rsi);
            hashtable.put(pkgName, list);
        } else {
            hashtable.get(pkgName).add(rsi);
        }
    }

    int i = 0;
    int size =  hashtable.size();
    for (Iterator it = hashtable.keySet().iterator(); it.hasNext(); i++) {
        String key = (String) it.next();
        List<ActivityManager.RunningServiceInfo> value = hashtable.get(key);
        ProcessItem item = new ProcessItem(getContext(), value.get(0).pid, key, totalCpu, totalRam);
        if (!whiteList.contains(item.pkgName)) {
            if (!killList.contains(item.pkgName)) {
                killList.add(item.pkgName);
                ramTotal += item.ram;

                if (getListener() != null) {
                    Progress progress = new Progress(this);
                    progress.setArg1(i);
                    progress.setArg2(size);
                    progress.setMsg(item.appName);
                    progress.setObj(item);
                    getListener().onExamining(progress);
                }
            }
        }
    }
    hashtable.clear();
    hashtable = null;

Answer 2

另一种选择是使用UsageStatsManager。

UsageStatsManager mUsageStatsManager = (UsageStatsManager)getSystemService(Context.USAGE_STATS_SERVICE);
long endTime = System.currentTimeMillis();
long beginTime = endTime - 1000*60;

// We get usage stats for the last minute
List<UsageStats > stats = mUsageStatsManager.queryUsageStats(UsageStatsManager.INTERVAL_DAILY, beginTime, endTime);

// Sort the stats by the last time used
if(stats != null) 
{
    SortedMap<Long,UsageStats> mySortedMap = new TreeMap<Long,UsageStats>();
    for (UsageStats usageStats : stats) 
    {
        mySortedMap.put(usageStats.getLastTimeUsed(),usageStats);
    }
    if(mySortedMap != null && !mySortedMap.isEmpty()) 
    {
        topActivity =  mySortedMap.get(mySortedMap.lastKey()).getPackageName();
    }
}

要使其正常工作，您需要PACKAGE_USAGE_STATS权限。您可以通过在设置中打开屏幕来提示用户执行此操作：

Intent usageAccessIntent = new Intent( Settings.ACTION_USAGE_ACCESS_SETTINGS );
usageAccessIntent.addFlags( Intent.FLAG_ACTIVITY_NEW_TASK );
startActivity( usageAccessIntent );

Answer 3

我可以在android 6.0上使用$ python -c"import psycopg2 ; print('psycopg2 is now ok')"）方法获取前台应用列表。谢谢@ thecr0w

getRunningServices(

getRunningAppProcesses在Android M（5.1.1）上返回空列表

3 个答案: