我正在使用这个链接来生成应用程序使用状态。我理解所选的时间间隔是,对于
使用
代码:
我做错了什么还是我对聚合间隔的理解不正确?任何帮助将不胜感激。谢谢。 编辑1 在查看存储在/data/system/usagestats文件夹中的统计文件时,我发现有两个用于每日统计和一个用于每周统计的文件,如下所示。
每日文件1
每周
YEARLY
间隔,它会在beginTime
和endTime
持续时间之间聚合每个包的每个YEAR
的数据。类似地,对于WEEKLY
和DAILY
间隔,它也应该起作用。使用
WEEKLY
,我的代码和输出如下;代码:
Calendar beginCal = Calendar.getInstance();
beginCal.set(Calendar.DATE, 1);
beginCal.set(Calendar.MONTH, 0);
beginCal.set(Calendar.YEAR, 2012);
Calendar endCall = Calendar.getInstance();
endCall.set(Calendar.DATE, 1);
endCall.set(Calendar.MONTH, 0);
endCall.set(Calendar.YEAR, 2016);
final List<UsageStats> queryUsagesStats= mUsageStatsManager.queryUsageStats(UsageStatsManager.INTERVAL_WEEKLY, beginCal.getTimeInMillis(), endCall.getTimeInMillis());
for(UsageStats us: queryUsagesStats)
{
long beginTime = us.getFirstTimeStamp();
String beginDate = df.format(new Date(beginTime));
long endTime = us.getLastTimeStamp();
String endDate = df.format(new Date(endTime));
String lastTime = df.format(new Date(us.getLastTimeUsed()));
long totalTimeInForeground = us.getTotalTimeInForeground()/1000L;
System.out.println("Pkg = " + us.getPackageName() + ", beginTime " + beginDate + ", endTime= " + endDate + ", lastTime = " + lastTime + ", totalTime = " + totalTimeInForeground);
}
输出:
Pkg = com.example.newappusagestatistics, beginTime 05/20/2015 17:00:04, endTime= 05/21/2015 17:55:42, lastTime = 05/21/2015 17:55:42, totalTime = 11186
Pkg = com.android.launcher, beginTime 05/20/2015 17:00:04, endTime= 05/21/2015 17:55:42, lastTime = 05/21/2015 17:55:42, totalTime = 1091
Pkg = com.android.browser, beginTime 05/20/2015 17:00:04, endTime= 05/21/2015 17:15:27, lastTime = 05/21/2015 17:15:27, totalTime = 68
Pkg = com.android.sdksetup, beginTime 05/20/2015 17:00:04, endTime= 01/01/1970 15:59:55, lastTime = 05/21/2015 14:41:08, totalTime = 1194
Pkg = com.android.camera, beginTime 05/20/2015 17:00:04, endTime= 01/01/1970 15:59:55, lastTime = 05/21/2015 14:55:32, totalTime = 40
Pkg = com.android.settings, beginTime 05/20/2015 17:00:04, endTime= 01/01/1970 15:59:55, lastTime = 05/21/2015 16:15:19, totalTime = 97
Pkg = com.android.systemui, beginTime 05/20/2015 17:00:04, endTime= 01/01/1970 15:59:55, lastTime = 05/21/2015 14:47:45, totalTime =
然而,如果我在上面的代码中使用 INTERVAL.DAILY
,我只会得到前三行数据。我的时间间隔足够大,应该包含此间隔内所有包的数据。
Pkg = com.example.newappusagestatistics, beginTime 05/21/2015 17:00:00, endTime= 05/21/2015 17:59:18, lastTime = 05/21/2015 17:59:18, totalTime = 3484
Pkg = com.android.launcher, beginTime 05/21/2015 17:00:00, endTime= 05/21/2015 17:59:18, lastTime = 05/21/2015 17:59:18, totalTime = 27
Pkg = com.android.browser, beginTime 05/21/2015 17:00:00, endTime= 05/21/2015 17:15:27, lastTime = 05/21/2015 17:15:27, totalTime = 43
我做错了什么还是我对聚合间隔的理解不正确?任何帮助将不胜感激。谢谢。 编辑1 在查看存储在/data/system/usagestats文件夹中的统计文件时,我发现有两个用于每日统计和一个用于每周统计的文件,如下所示。
每日文件1
<usagestats version="1" endTime="59366071">
<packages>
<package lastTimeActive="59366071" package="com.example.newappusagestatistics" timeActive="4064908" lastEvent="1"/>
<package lastTimeActive="59366020" package="com.android.launcher" timeActive="813728" lastEvent="2"/>
<package lastTimeActive="927475" package="com.android.browser" timeActive="43838" lastEvent="2"/>
</packages>
每日文件2
<usagestats version="1" endTime="86395657">
<packages>
<package lastTimeActive="86395657" package="com.example.newappusagestatistics" timeActive="7916365" lastEvent="3" />
<package lastTimeActive="85743386" package="com.android.launcher" timeActive="1064651" lastEvent="2" />
<package lastTimeActive="78961499" package="com.android.browser" timeActive="24715" lastEvent="2" />
<package lastTimeActive="78063875" package="com.android.sdksetup" timeActive="1194161" lastEvent="3" />
<package lastTimeActive="78928555" package="com.android.camera" timeActive="40775" lastEvent="2" />
<package lastTimeActive="83715390" package="com.android.settings" timeActive="97012" lastEvent="2" />
<package lastTimeActive="78461328" package="com.android.systemui" timeActive="4162" lastEvent="2" />
</packages>
每周
<usagestats version="1" endTime="145761729">
<packages>
<package lastTimeActive="145761729" package="com.example.newappusagestatistics" timeActive="11981273" lastEvent="1" />
<package lastTimeActive="145761678" package="com.android.launcher" timeActive="1878379" lastEvent="2" />
<package lastTimeActive="87323133" package="com.android.browser" timeActive="68553" lastEvent="2" />
<package lastTimeActive="78063875" package="com.android.sdksetup" timeActive="1194161" lastEvent="3" />
<package lastTimeActive="78928555" package="com.android.camera" timeActive="40775" lastEvent="2" />
<package lastTimeActive="83715390" package="com.android.settings" timeActive="97012" lastEvent="2" />
<package lastTimeActive="78461328" package="com.android.systemui" timeActive="4162" lastEvent="2" />
</packages>
整个数据似乎有些混乱。对于同一浏览器应用程序,每天存储的结果都不同,每周存储的结果也不同。