Permissions - Unable to add window
Bonjour,
Je développe une application de sécurité mobile dans le cadre d'un stage.
J'essaye actuellement de créer un service qui lit toutes les entrées TouchEvent pour les comparer à un modèle établi précédemment.
Mon service crée un LinearLayout de 1x1pixel au dessus des applications actives et catch les actions extérieures.
Problème : L'application plante
Code:
ava.lang.RuntimeException: Unable to start service my.utar.phonesecurat.AuthenticationCheck@4e2a62b with Intent { cmp=my.utar.phonesecurat/.AuthenticationCheck }: android.view.WindowManager$BadTokenException: Unable to add window -- token null is not for an application
De ce que j'ai pu comprendre sur internet c'est à la fois un problème de permission Android et d'utilisation de contextes. Impossible de trouver la bonne méthode après recherches.
Voici le code de mon service, si vous avez connaissance de ce problème ou des pistes à explorer n’hésitez pas
Merci pour votre aide et bon dev à tous ! :)
Code:
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| package my.utar.phonesecurat;
import android.app.IntentService;
import android.content.Intent;
import android.graphics.PixelFormat;
import android.os.IBinder;
import android.support.annotation.Nullable;
import android.util.Log;
import android.view.GestureDetector;
import android.view.Gravity;
import android.view.MotionEvent;
import android.view.VelocityTracker;
import android.view.View;
import android.view.WindowManager;
import android.widget.LinearLayout;
import android.widget.LinearLayout.LayoutParams;
import android.widget.Toast;
import java.util.ArrayList;
public class AuthenticationCheck extends IntentService implements View.OnTouchListener {
private WindowManager mWindowManager;
private LinearLayout mLinearLayout;
private GestureDetector gestureDetector;
private GestureListener gestureListener;
private VelocityTracker mVelocityTracker;
private ArrayList<StructMotionElemts> mPointsList;
private StructMotionFeaturesList mModelList;
private UserModel mRightSwipeModel;
private StructMotionElemts mStructMotionElemts;
private StructMotionFeatures mStructMotionFeatures;
private boolean mSwitch;
public AuthenticationCheck() {
super("AuthenticationCheck");
}
@Override
public int onStartCommand(Intent intent, int flags, int startId) {
Toast.makeText(getApplicationContext(),"Authentication service started", Toast.LENGTH_SHORT).show();
Log.v("TEST","LOG CHECK");
mLinearLayout = new LinearLayout(getApplicationContext());
LayoutParams mLayoutParams = new LayoutParams(1,1);
mLinearLayout.setLayoutParams(mLayoutParams);
mLinearLayout.setOnTouchListener(this);
mWindowManager = (WindowManager) getSystemService(WINDOW_SERVICE);
WindowManager.LayoutParams mParams = new WindowManager.LayoutParams(
1,
1,
WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE,
PixelFormat.TRANSLUCENT,
WindowManager.LayoutParams.FLAG_WATCH_OUTSIDE_TOUCH
);
mParams.gravity = Gravity.LEFT | Gravity.TOP;
mWindowManager.addView(mLinearLayout, mParams);
gestureListener = new GestureListener() {
@Override
public void onSwipeRight() {
super.onSwipeRight();
}
};
mRightSwipeModel = new UserModel();
//TODO retrieve UserModel saved
mSwitch = false;
gestureDetector = new GestureDetector(getApplicationContext(), gestureListener);
Log.v("TEST","GESTURE DETECTOR CREATED");
return START_REDELIVER_INTENT;
}
public boolean onTouch(View v, MotionEvent event) {
Log.v("TEST","ENTERED ONTOUCH");
return gestureDetector.onTouchEvent(event);
}
public boolean onTouchEvent(MotionEvent event) {
Log.v("TEST","ENTERED ONTOUCHEVENT");
switch (event.getActionMasked()) {
/**
* ACTION_DOWN is the first touch of the screen
* ACTION_UP is the last touch of the screen
* ACTION_MOVE is all the intermediate points in between
* We focus on ACTION_MOVE because on ACTION_DOWN / UP The speed can be 0 and mess the average
*/
case MotionEvent.ACTION_DOWN:
break;
case MotionEvent.ACTION_MOVE:
if (!mSwitch) {
//INITIALISATION
if (mVelocityTracker == null) {
mVelocityTracker = VelocityTracker.obtain();
} else {
mVelocityTracker.clear();
}
//Creation or reinitialisation du List
if (mPointsList == null) {
mPointsList = new ArrayList<>();
} else {
mPointsList.clear();
}
//Creation or reinitialisation du StructMotionElemts
if (mStructMotionElemts == null) {
mStructMotionElemts = new StructMotionElemts();
} else {
mStructMotionElemts.clear();
}
//Creation or reinitialisation du StructMotionFeatures
if (mStructMotionFeatures == null) {
mStructMotionFeatures = new StructMotionFeatures();
} else {
mStructMotionFeatures.clear();
}
mSwitch = true;
}
if(mSwitch) {
mStructMotionElemts.compute(event, mPointsList, mVelocityTracker);
}
break;
case MotionEvent.ACTION_UP:
if(mSwitch) {
mStructMotionFeatures.compute(mPointsList);
mSwitch = false;
}
break;
}
//Used at the end of a move to trigger OnFling method
return gestureDetector.onTouchEvent(event);
}
@Nullable
@Override
public IBinder onBind(Intent intent) {
return null;
}
@Override
protected void onHandleIntent(Intent intent) {
}
@Override
public void onDestroy() {
if(mWindowManager != null) {
if(mLinearLayout != null) mWindowManager.removeView(mLinearLayout);
}
Toast.makeText(this,"Authentication service stopped", Toast.LENGTH_SHORT).show();
super.onDestroy();
}
} |
