Java 安卓:每小时获取USAGests
我使用安卓的Java 安卓:每小时获取USAGests,java,android,usage-statistics,Java,Android,Usage Statistics,我使用安卓的UsageStats功能,但最小的间隔是每日间隔 long time = System.currentTimeMillis(); List<UsageStats> appList = manager.queryUsageStats(UsageStatsManager.INTERVAL_DAILY, time - DAY_IN_MILLI_SECONDS, time); long time=System.currentTimeMillis(); List appList=
UsageStats
功能,但最小的间隔是每日间隔
long time = System.currentTimeMillis();
List<UsageStats> appList = manager.queryUsageStats(UsageStatsManager.INTERVAL_DAILY, time - DAY_IN_MILLI_SECONDS, time);
long time=System.currentTimeMillis();
List appList=manager.queryUsageStats(UsageStatsManager.INTERVAL_DAILY,time-DAY_IN_MILLI_SECONDS,time);
如何在每小时间隔内获取
USAGests
?是的,Android提供了最小interval\u DAILY
。但是为了获得最佳结果,可以使用INTERVAL\u best
。Android在queryUsageStats(int,long,long)
中为给定的时间范围提供了最佳的间隔计时器
快乐编码…
我不认为这是可能的,即使你在间隔中间要求数据,看起来数据是存储在桶里,最小桶是一天。 在文件中,它说:在时间间隔中间的数据请求将包括该间隔。 而且,
INTERVAL\u BEST
不是一个真正的间隔,它只是为给定的时间范围选择一个可用的间隔。在里面
源代码,它说:
/**
* The number of available intervals. Does not include {@link #INTERVAL_BEST}, since it
* is a pseudo interval (it actually selects a real interval).
* {@hide}
*/
public static final int INTERVAL_COUNT = 4;
所有的功劳都归于他。我从中吸取了教训
我们如何收集定制时间范围内的应用程序使用数据(例如每1小时)?
我们必须调用该方法,因为它将为我们提供从begin\u time
到end\u time
的所有数据。它通过前台
和后台
事件提供每个应用程序的数据,而不是总花费时间的方法。因此,使用前台和后台事件时间戳,我们可以计算一个应用程序启动的次数,还可以找出每个应用程序的使用持续时间
收集最近1小时应用程序使用数据的实施
首先,在AndroidManifest.xml
文件中添加以下行,并请求用户获得使用访问权限
<uses-permission android:name="android.permission.PACKAGE_USAGE_STATS" />
然后,调用方法getUsageStatistics()
妊娠统计法
如何自定义这些代码以收集每1小时的数据?
由于要获取每小时数据,请更改每小时数据的结束时间
和开始时间
值。例如:如果我试图收集过去每小时的数据(过去2小时的数据)。我会做下面的事情
long end_time = System.currentTimeMillis();
long start_time = end_time - (1000*60*60);
getUsageStatistics(start_time, end_time);
end_time = start_time;
start_time = start_time - hour_in_mil;
getUsageStatistics(start_time, end_time);
但是,您可以使用处理程序
跳过重复写入开始时间
和结束时间
来更改这些变量的值。每次收集一小时的数据时,将完成一项任务,在自动更改变量的值后,您将再次调用getUsageStatistics
方法
注意:可能在过去的7.5天内,您无法检索数据。我看到了INTERVAL\u的最佳状态,但我不明白如何知道什么是INTERVAL?我希望每小时都能得到这样的东西:whatsapp-30分钟,youtube-25分钟,facebook-5分钟。所以你需要每小时运行你的代码。我读到,即使你选择的时间框架持续五分钟,如果你选择INTERVAL\u WEEKLY作为intervalType,你会得到该时间间隔内的所有统计数据。@你的问题解决了吗?如果我现在提供正确的答案,对你有帮助吗?我在这方面做了很多工作。我仍然在寻找解决方案。感谢您的每一个帮助。@拉夫尔:好的,我会尽我最大的努力帮助您。这是我在帖子的评论中写的。@SabbirAhmedת伟大的解决方案!我只将UsageEvents.Event.MOVE_TO_前台更改为UsageEvents.Event.ACTIVITY_继续,将UsageEvents.Event.MOVE_TO_后台更改为UsageEvents.Event.ACTIVITY_由于API中的不推荐而暂停29@Rougher很高兴能帮助你。也感谢您提供这些信息(API 29中的弃用)。
getUsageStatistics(start_time, end_time);
@RequiresApi(api = Build.VERSION_CODES.LOLLIPOP)
void getUsageStatistics(long start_time, long end_time) {
UsageEvents.Event currentEvent;
// List<UsageEvents.Event> allEvents = new ArrayList<>();
HashMap<String, AppUsageInfo> map = new HashMap<>();
HashMap<String, List<UsageEvents.Event>> sameEvents = new HashMap<>();
UsageStatsManager mUsageStatsManager = (UsageStatsManager)
context.getSystemService(Context.USAGE_STATS_SERVICE);
if (mUsageStatsManager != null) {
// Get all apps data from starting time to end time
UsageEvents usageEvents = mUsageStatsManager.queryEvents(start_time, end_time);
// Put these data into the map
while (usageEvents.hasNextEvent()) {
currentEvent = new UsageEvents.Event();
usageEvents.getNextEvent(currentEvent);
if (currentEvent.getEventType() == UsageEvents.Event.ACTIVITY_RESUMED ||
currentEvent.getEventType() == UsageEvents.Event.ACTIVITY_PAUSED) {
// allEvents.add(currentEvent);
String key = currentEvent.getPackageName();
if (map.get(key) == null) {
map.put(key, new AppUsageInfo(key));
sameEvents.put(key,new ArrayList<UsageEvents.Event>());
}
sameEvents.get(key).add(currentEvent);
}
}
// Traverse through each app data which is grouped together and count launch, calculate duration
for (Map.Entry<String,List<UsageEvents.Event>> entry : sameEvents.entrySet()) {
int totalEvents = entry.getValue().size();
if (totalEvents > 1) {
for (int i = 0; i < totalEvents - 1; i++) {
UsageEvents.Event E0 = entry.getValue().get(i);
UsageEvents.Event E1 = entry.getValue().get(i + 1);
if (E1.getEventType() == 1 || E0.getEventType() == 1) {
map.get(E1.getPackageName()).launchCount++;
}
if (E0.getEventType() == 1 && E1.getEventType() == 2) {
long diff = E1.getTimeStamp() - E0.getTimeStamp();
map.get(E0.getPackageName()).timeInForeground += diff;
}
}
}
// If First eventtype is ACTIVITY_PAUSED then added the difference of start_time and Event occuring time because the application is already running.
if (entry.getValue().get(0).getEventType() == 2) {
long diff = entry.getValue().get(0).getTimeStamp() - start_time;
map.get(entry.getValue().get(0).getPackageName()).timeInForeground += diff;
}
// If Last eventtype is ACTIVITY_RESUMED then added the difference of end_time and Event occuring time because the application is still running .
if (entry.getValue().get(totalEvents - 1).getEventType() == 1) {
long diff = end_time - entry.getValue().get(totalEvents - 1).getTimeStamp();
map.get(entry.getValue().get(totalEvents - 1).getPackageName()).timeInForeground += diff;
}
}
smallInfoList = new ArrayList<>(map.values());
// Concatenating data to show in a text view. You may do according to your requirement
for (AppUsageInfo appUsageInfo : smallInfoList)
{
// Do according to your requirement
strMsg = strMsg.concat(appUsageInfo.packageName + " : " + appUsageInfo.launchCount + "\n\n");
}
TextView tvMsg = findViewById(R.id.MA_TvMsg);
tvMsg.setText(strMsg);
} else {
Toast.makeText(context, "Sorry...", Toast.LENGTH_SHORT).show();
}
}
import android.graphics.drawable.Drawable;
class AppUsageInfo {
Drawable appIcon; // You may add get this usage data also, if you wish.
String appName, packageName;
long timeInForeground;
int launchCount;
AppUsageInfo(String pName) {
this.packageName=pName;
}
}
long end_time = System.currentTimeMillis();
long start_time = end_time - (1000*60*60);
getUsageStatistics(start_time, end_time);
end_time = start_time;
start_time = start_time - hour_in_mil;
getUsageStatistics(start_time, end_time);
Calendar cal = (Calendar) Calendar.getInstance().clone();
//I used this and it worked, only for 7 days and a half ago
if (daysAgo == 0) {
//Today - I only count from 00h00m00s today to present
end = cal.getTimeInMillis();
start = LocalDate.now().toDateTimeAtStartOfDay().toInstant().getMillis();
} else {
long todayStartOfDayTimeStamp = LocalDate.now().toDateTimeAtStartOfDay().toInstant().getMillis();
if (mDaysAgo == -6) {
//6 days ago, only get events in time -7 days to -7.5 days
cal.setTimeInMillis(System.currentTimeMillis());
cal.add(Calendar.DATE, daysAgo + 1);
end = cal .getTimeInMillis();
start = end - 43200000;
} else {
//get events from 00h00m00s to 23h59m59s
//Current calendar point to 0h0m today
cal.setTimeInMillis(todayStartOfDayTimeStamp);
cal.add(Calendar.DATE, daysAgo + 1);
end = calendar.getTimeInMillis();
cal.add(Calendar.DATE, -1);
start = calendar.getTimeInMillis();
}
}