英文:
Get Day by Day UsageStats with Android Studio
问题
我正在开发一个应用程序，用于显示在 Android 设备上使用的应用程序的使用统计信息。我要特别尝试的是按天划分使用时间。因此，最终目标是拥有一个柱状图，每列代表一天的总使用时间。
我已经实现了以下使用：
private long getWeekStartTime() {
Calendar calendar = Calendar.getInstance();
// Set it to 7 days prior
calendar.add(Calendar.DAY_OF_YEAR, -7);
return calendar.getTimeInMillis();
}
private long getEndTime(){
// Set end time to Now
return System.currentTimeMillis();
}
public void retrieveWeekUsageStats(){
List<UsageStats> usageStats = usageStatsManager.queryUsageStats(INTERVAL_DAILY,getWeekStartTime(), getEndTime());
for (UsageStats stat: usageStats) {
Log.d(TAG, "retrieveWeekUsageStats: " + stat.getPackageName() + " " + stat.getFirstTimeStamp() +" " + stat.getLastTimeStamp());
}
}
通过上述代码，我能够记录下最近使用过的许多应用程序，但所有的应用程序和日期都混在一起。
我在 UsageStatsManager 中将间隔设置为 INTERVAL_DAILY，希望能将包的使用按天间隔分开，但实际上它只是以随机顺序输出所有内容。在哪种情况下最好将此列表按天排序成块？
我还尝试将 INTERVAL_DAILY 调整为 INTERVAL_WEEKLY，但无济于事。
英文:
I am working on an application that displays Usage Stats for applications used on an android device. What I am trying to specifically do is chunk out usage time by day. So essentially, the end goal is to have a bar chart and each column is a total day's usage time.
I have implemented Usage
private long getWeekStartTime() {
Calendar calendar = Calendar.getInstance();
// Set it to 7 days prior
calendar.add(Calendar.DAY_OF_YEAR, -7);
return calendar.getTimeInMillis();
}
private long getEndTime(){
// Set end time to Now
return System.currentTimeMillis();
}
public void retrieveWeekUsageStats(){
List<UsageStats> usageStats = usageStatsManager.queryUsageStats(INTERVAL_DAILY,getWeekStartTime(), getEndTime());
for (UsageStats stat: usageStats) {
Log.d(TAG, "retrieveWeekUsageStats: " + stat.getPackageName() + " " + stat.getFirstTimeStamp() +" " + stat.getLastTimeStamp());
}
}
With the above code, I am able to log out a ton of packages that have been used recently but all of the packages and dates are intermixed.
I set the interval in the UsageStatsManager to INTERVAL_DAILY with the hopes that it would separate out the package uses into day intervals but it just spits everything out in a random order. What is the best way to sort this list into chunks by day?
I also tried to adjust the INTERVAL_DAILY to INTERVAL_WEEKLY with no avail.
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