From this project, you can learn how to build a Flutter mobile app that tracks app usage using real-time monitoring and customizable notifications. You can also learn how to use the MethodChannel to integrate platform-specific functionality into your app
App Usage Tracker is a Flutter mobile app that helps users track how much time they spend on their apps, using powerful notifications and block some of most used app.
The Project is still under development and was inspired by popular apps such as Digital Wellbeing and ActionDash. But as they are being developed with native language so we thought why not develop some functionality from them with Flutter.
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Current Active App using foreground Service.
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The current active app in Foreground with duration used throught the day shown to user with help of notification .
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Starting foreground service when the device is restarted.
Native apps have access to all the features of the platform, while Flutter apps may not have direct access to platform-level functionality. But we can achieve it by using a method channel and writing a background service at native level
Follow the step and you can use our code to get the app tracking functionality in your project in no time.
Step 1
Create a Method channel at flutter end
MethodChannel platform = MethodChannel(
'your method channel name',
);
platform.invokeMethod("getForegroundPackage",
{"dbPath": DataBaseHelper.instance.dataBasePath});
Here we have given a method name as getForegroundPackage which should be called when the method is invoked from flutter end use invoke method in initstate method of your widget
Step 2
Once Method Channel is setup at flutter side jump to Main Activity in Android
Copy The following code in your MainActivity.kt
var methodChannelName:String = "your method channel name";
override fun configureFlutterEngine(@NonNull flutterEngine: FlutterEngine) {
super.configureFlutterEngine(flutterEngine)
MethodChannel(flutterEngine.dartExecutor.binaryMessenger, methodChannelName).setMethodCallHandler {
call, result ->
if(call.method == "getForegroundPackage") {
val i = Intent(context, ActiveAppService::class.java)
val isAlreadyRunning:Boolean = context.isMyServiceRunning(ActiveAppService::class.java)
if (!isAlreadyRunning){
context.startService(i)
Log.e("Service Status","Started New Service")
}
else{
Log.e("Service Status","Already Running")
}
}
}
}
Step 3
Create a Foreground Service which will be running even when the app is closed you can refer to ActiveAppService.kt file in the project or you can use the following code to get which app is currently running in foreground
For more information on foreground services you can refer https://developer.android.com/guide/components/foreground-services
fun getActiveAppPackageName(context: Context): String {
var pkgName: String? = null
val usageStatsManager = context
.getSystemService(USAGE_STATS_SERVICE) as UsageStatsManager
val timeTnterval = (1000 * 600).toLong()
val endTime = System.currentTimeMillis()
val beginTime = endTime - timeTnterval
val myUsageEvents: UsageEvents = usageStatsManager.queryEvents(beginTime, endTime)
while (myUsageEvents.hasNextEvent()) {
val myEvent: UsageEvents.Event = UsageEvents.Event()
myUsageEvents.getNextEvent(myEvent)
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.Q) {
when (myEvent.eventType) {
UsageEvents.Event.ACTIVITY_RESUMED -> pkgName = myEvent.packageName
UsageEvents.Event.ACTIVITY_PAUSED -> if (myEvent.packageName.equals(pkgName)) {
pkgName = null
}
}
} else {
when (myEvent.eventType) {
UsageEvents.Event.ACTIVITY_RESUMED -> pkgName = myEvent.packageName
UsageEvents.Event.ACTIVITY_RESUMED -> if (myEvent.packageName.equals(pkgName)) {
pkgName = null
}
}
}
}
if (pkgName == null){
var currentApp = ""
val usm = this.getSystemService(USAGE_STATS_SERVICE) as UsageStatsManager
val time = System.currentTimeMillis()
val appList =
usm.queryUsageStats(UsageStatsManager.INTERVAL_DAILY, time - 1000 * 1000, time)
if (appList != null && appList.size > 0) {
val mySortedMap: SortedMap<Long, UsageStats> = TreeMap()
for (usageStats in appList) {
mySortedMap[usageStats.lastTimeUsed] = usageStats
}
if (mySortedMap != null && !mySortedMap.isEmpty()) {
currentApp = mySortedMap[mySortedMap.lastKey()]!!.packageName
}
}
return currentApp
}
else{
return pkgName
}
}
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