My app needs to have Usage Access Permission in order to get information about the current running app on user's phone. I am able to successfully implement it using the following code with the help from the following link.
Here is my working code
public void showDialog()
{
if (android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.LOLLIPOP) {
@SuppressWarnings("WrongConstant")
UsageStatsManager usm = (UsageStatsManager) getSystemService("usagestats");
long time = System.currentTimeMillis();
List<UsageStats> appList = usm.queryUsageStats(UsageStatsManager.INTERVAL_DAILY,
time - 1000 * 1000, time);
if (appList.size()==0)
{
AlertDialog alertDialog = new AlertDialog.Builder(this)
.setTitle("Usage Access")
.setMessage("App will not run without usage access permissions.")
.setPositiveButton("Settings", new DialogInterface.OnClickListener() {
@TargetApi(Build.VERSION_CODES.LOLLIPOP)
public void onClick(DialogInterface dialog, int which) {
// continue with delete
Intent intent = new Intent(Settings.ACTION_USAGE_ACCESS_SETTINGS);
// intent.setComponent(new ComponentName("com.android.settings","com.android.settings.Settings$SecuritySettingsActivity"));
intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
startActivityForResult(intent,0);
}
})
.setNegativeButton("Cancel", new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int which) {
// do nothing
dialog.dismiss();
}
})
.setIcon(android.R.drawable.ic_dialog_alert)
.create();
alertDialog.getWindow().setType(WindowManager.LayoutParams.TYPE_SYSTEM_ALERT);
alertDialog.show();
} else {
Intent intent = new Intent(this, PackageService.class);
startService(intent);
finish();
}
}else
{
Intent intent = new Intent(this, PackageService.class);
startService(intent);
finish();
}
}
This code will show a user an alert dialog that Usage Access permission is required and will take user to the settings screen from where it can be enabled.
Everything works perfectly with this. Only thing that I want is that how to give my app usage access permission by default without showing any dialog to user until he/she doesn't turn it off manually?
You can simply give this Permission on the manifest, ignoring just this permission error:
<uses-permission
android:name="android.permission.PACKAGE_USAGE_STATS"
tools:ignore="ProtectedPermissions"/>
Than use Following code for permission
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
if (!isAccessGranted()) {
Intent intent = new Intent(Settings.ACTION_USAGE_ACCESS_SETTINGS);
startActivity(intent);
}
}
private boolean isAccessGranted() {
try {
PackageManager packageManager = getPackageManager();
ApplicationInfo applicationInfo = packageManager.getApplicationInfo(getPackageName(), 0);
AppOpsManager appOpsManager = (AppOpsManager) getSystemService(Context.APP_OPS_SERVICE);
int mode = 0;
if (android.os.Build.VERSION.SDK_INT > android.os.Build.VERSION_CODES.KITKAT) {
mode = appOpsManager.checkOpNoThrow(AppOpsManager.OPSTR_GET_USAGE_STATS,
applicationInfo.uid, applicationInfo.packageName);
}
return (mode == AppOpsManager.MODE_ALLOWED);
} catch (PackageManager.NameNotFoundException e) {
return false;
}
}