Develop Reference

How to get total data usage of an android device programmatically?

In the settings menu on my android smartphone, I can see the total data usage of the current and past cycles. Can I somehow retrieve that information programmatically in my app?
Thanks in advance.

You can use android.net.TrafficStats to get traffic details:
for example to get Total bytes received:
android.net.TrafficStats.getTotalRxBytes()
and if you want to get send and received info of your apps one by one you can get it like this:
first get all apps running info by this:
List<RunningAppProcessInfo>
then get UID of each app you want
ActivityManager manager = (ActivityManager) getSystemService(ACTIVITY_SERVICE);
List<RunningAppProcessInfo> runningApps = manager.getRunningAppProcesses();
for (RunningAppProcessInfo runningApp : runningApps) {
// Get UID of the selected process
int uid = ((RunningAppProcessInfo)getListAdapter().getItem(position)).uid;
long received = TrafficStats.getUidRxBytes(uid);//received amount of each app
long send = TrafficStats.getUidTxBytes(uid);//sent amount of each app
}
let me know is this what you want

How to get number apps running in background

I am working on an app which needs the information of how many application running in background at the system,
I want to get number of them.
Any idea please ?

This Below lines give the list of Apps which are in background,
ActivityManager actvityManager = (ActivityManager)
this.getSystemService( ACTIVITY_SERVICE );
List<RunningAppProcessInfo> procInfos = actvityManager.getRunningAppProcesses();
procInfos.size() gives you number of apps

How to kill tasks in android?

I use the following snippet to kill tasks , it works perfectly fine but it doesn't kill my own app. How do i make it kill my app as well?
// kill tasks
List<String> reservedPackages = new ArrayList<String>();
reservedPackages.add("system");
reservedPackages.add("com.android.launcher2");
reservedPackages.add("com.android.inputmethod.latin");
reservedPackages.add("com.android.phone");
reservedPackages.add("com.android.wallpaper");
reservedPackages.add("com.google.process.gapps");
reservedPackages.add("android.process.acore");
reservedPackages.add("android.process.media");
ActivityManager am = (ActivityManager) context
.getSystemService(Activity.ACTIVITY_SERVICE);
List<RunningAppProcessInfo> listeProcessus = am
.getRunningAppProcesses();
for (RunningAppProcessInfo processus : listeProcessus) {
String packageName = processus.processName.split(":")[0];
if (!context.getPackageName().equals(packageName)
&& !reservedPackages.contains(packageName)) {
am.restartPackage(packageName);
}
}

Google has recently removed the GET_TASKS permission and developers can't make changes to running tasks . The only remained way is to have a root access and close the running tasks that is not possible for All Android Users

As of api 21 (android lolipop) it has been removed by Google

Is there a way to get Process Ids of other 3rd party applications in Android...?

I have a requirement in my project where in i have to kill process of 3rd party application.
As i know Android can have multiple application running at a time, so can i get all those Process
Ids some how...

This class will help you to kill processes:
http://developer.android.com/reference/android/os/Process.html
This gives you a list of currently running processes:
ActivityManager.getRunningAppProcesses();
The list contains ActivityManager.RunningAppProcessInfo objects which store the pid. You can then kill the processes via
Process.killProcess(pid);
You need the proper permissions to do that. Android should throw an exception if you try to kill a process without the proper permissions and tell you what permission you need.

check this way if it solves your purpose:
ArrayList<PackageInfo> res = new ArrayList<PackageInfo>();
PackageManager pm = context.getApplicationContext().getPackageManager();
List<PackageInfo> packs = pm.getInstalledPackages(0);
packs.get(pos).gids;
packs.get(pos).sharedUserId;

You can get information about all running processes using ActivityManager. Refer following code:
ActivityManager am = (ActivityManager) getSystemService(ACTIVITY_SERVICE);
List<RunningAppProcessInfo> list = am.getRunningAppProcesses();
for (RunningAppProcessInfo proc : list) {
Log.v("Proccess", proc.processName + " : " + proc.pid);
}
Multiple applications can be running in the same process, so it would be better to use RunninAppProcessInfo.pkgList over RunninAppProcessInfo.processName.

Monitor Currently Running Application

I am encountering a problem that i can't not solve for the moment.
The purpose of the code is to monitor which applications are running at current moment.
I used the following code and logged the resulting package name, it worked.
ActivityManager am = (ActivityManager) context.getSystemService(Activity.ACTIVITY_SERVICE);
String packageName = am.getRunningTasks(1).get(0).topActivity.getPackageName();
Log.i("TTWYMonitor", packageName);
But I use that code in a BroadcastReceiver, nothing happened.
In manifest,I declared an intent receiver android:name=".MonitorApplication.
What should I do, then?
Please give any suggestion.
Yahel : Thanks and sorry for my informal question.

replace the "Activity" in getSystemService's parameters with "Context":
ActivityManager manager = (ActivityManager) context.getSystemService(Context.ACTIVITY_SERVICE);
I tested it and works fine for me!