Lock Android Phone after user dials a phone number

Question

I am developing a security application whereby, if a user dials a phone number that is not frequently called and he has never called before, the user will have to reauthenticate himself. For this purpose I want to lock the phone after checking the phone number. ``` public class outgoingCalls extends BroadcastReceiver { public void onReceive(Context context, Intent intent) { Log.v("onReceive", "In onReceive()"); if (confidence == 0) { Log.v("onReceive","confidence zeroed"); Intent i = new Intent(); i.setClassName("abc.xyz.SECURITY","abc.xyz.SECURITY.lockActivity"); i.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK); context.startActivity(i); } } ``` In this new Activity lockActivity, I need to lock the phone where I have commented // LOCK PHONE ``` public class lockActivity extends Activity { @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); Log.v("lock","lockActivity onCreate method called"); // setContentView(R.layout.main); Log.v("lock","locking"…

Accepted Answer

Try creating a DevicePolicyManager

http://developer.android.com/training/enterprise/device-management-policy.html

and then call:

```
DevicePolicyManager mDPM  = (DevicePolicyManager)context.getSystemService(Context.DEVICE_POLICY_SERVICE);
mDPM.lockNow();
```

Lock Android Phone after user dials a phone number

Solution

Problem