Unable to proceed after denying for all permissions

Question

I want to ask the user for Camera, Location, Write Storage, CallPhone permissions and show an alert dialog when user denies any of the permissions.

But my code throws this exception :

E/AndroidRuntime: FATAL EXCEPTION: main Process: fwt_android.mpermissions, PID: 4850 java.lang.RuntimeException: Failure delivering result ResultInfo{who=@android:requestPermissions:, request=1, result=-1, data=Intent { act=android.content.pm.action.REQUEST_PERMISSIONS (has extras) }} to activity {fwt_android.mpermissions/fwt_android.mpermissions.activities.Splash}: android.content.res.Resources$NotFoundException: Resource ID #0x0 at android.app.ActivityThread.deliverResults(ActivityThread.java:3699) at android.app.ActivityThread.handleSendResult(ActivityThread.java:3742) at android.app.ActivityThread.-wrap16(ActivityThread.java) at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1393) at android.os.Handler.dispatchMessage(Handler.java:102) at android.os.Looper.loop(Looper.java:148) at android.app.ActivityThread.main(ActivityThread.java:5417) at java.lang.reflect.Method.invoke(Native Method) at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616) Caused by: android.content.res.Resources$NotFoundException: Resource ID #0x0 at android.content.res.Resources.getValue(Resources.java:1351) at android.content.res.Resources.loadXmlResourceParser(Resources.java:2774) at android.content.res.Resources.getLayout(Resources.java:1165) at android.view.LayoutInflater.inflate(LayoutInflater.java:421) at android.view.LayoutInflater.inflate(LayoutInflater.java:374) at android.support.v7.app.AppCompatDelegateImplV9.setContentView(AppCompatDelegateImplV9.java:287) at android.support.v7.app.AppCompatDialog.setContentView(AppCompatDialog.java:83) at android.support.v7.app.AlertController.installContent(AlertController.java:226) at android.support.v7.app.AlertDialog.onCreate(AlertDialog.java:260) at android.app.Dialog.dispatchOnCreate(Dialog.java:394) at android.app.Dialog.show(Dialog.java:295) at fwt_android.mpermissions.activities.Splash.onRequestPermissionsResult(Splash.java:215) at android.app.Activity.dispatchRequestPermissionsResult(Activity.java:6553) at android.app.Activity.dispatchActivityResult(Activity.java:6432) at android.app.ActivityThread.deliverResults(ActivityThread.java:3695) at android.app.ActivityThread.handleSendResult(ActivityThread.java:3742)  at android.app.ActivityThread.-wrap16(ActivityThread.java)  at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1393)  at android.os.Handler.dispatchMessage(Handler.java:102)  at android.os.Looper.loop(Looper.java:148)  at android.app.ActivityThread.main(ActivityThread.java:5417)  at java.lang.reflect.Method.invoke(Native Method)  at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726)  at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616) 

Here are the constants for checking permissions -

private final int PERMISSION_CALLBACK_CONSTANT = 1;
private final int REQUEST_PERMISSION_SETTING = 1;
String[] permissionsRequired = new String[]{Manifest.permission.CAMERA, Manifest.permission.ACCESS_FINE_LOCATION,
        Manifest.permission.WRITE_EXTERNAL_STORAGE, Manifest.permission.CALL_PHONE};

Here is my code for checking permisions -

public void checkPermission() {
    if (ActivityCompat.checkSelfPermission(context, permissionsRequired[0]) != PackageManager.PERMISSION_GRANTED
            || ActivityCompat.checkSelfPermission(context, permissionsRequired[1]) != PackageManager.PERMISSION_GRANTED
            || ActivityCompat.checkSelfPermission(context, permissionsRequired[2]) != PackageManager.PERMISSION_GRANTED
            || ActivityCompat.checkSelfPermission(context, permissionsRequired[3]) != PackageManager.PERMISSION_GRANTED
           ) {
        if (ActivityCompat.shouldShowRequestPermissionRationale(Splash.this, permissionsRequired[0])
                || ActivityCompat.shouldShowRequestPermissionRationale(Splash.this, permissionsRequired[1])
                || ActivityCompat.shouldShowRequestPermissionRationale(Splash.this, permissionsRequired[2])
                || ActivityCompat.shouldShowRequestPermissionRationale(Splash.this, permissionsRequired[3])) {

            //Show Information about why you need the permission
            AlertDialog.Builder builder = new AlertDialog.Builder(context);
            builder.setTitle("Need Multiple Permissions");
            builder.setMessage("This app needs Camera Location, Storage and Phone permissions.");
            builder.setPositiveButton("Grant", new DialogInterface.OnClickListener() {
                @Override
                public void onClick(DialogInterface dialog, int which) {
                    dialog.dismiss();
                    ActivityCompat.requestPermissions(Splash.this, permissionsRequired, PERMISSION_CALLBACK_CONSTANT);
                }
            }).setNegativeButton("Cancel", new DialogInterface.OnClickListener() {
                @Override
                public void onClick(DialogInterface dialog, int which) {
                    dialog.dismiss();
                    finish();
                }
            }).create().show();
        } else if (permissionStatus.getBoolean(permissionsRequired[0], false)
                || permissionStatus.getBoolean(permissionsRequired[1], false)
                || permissionStatus.getBoolean(permissionsRequired[2], false)
                || permissionStatus.getBoolean(permissionsRequired[3], false)
                ) {
            //Previously Permission Request was cancelled with 'Dont Ask Again',
            // Redirect to Settings after showing Information about why you need the permission
            AlertDialog.Builder builder = new AlertDialog.Builder(context);
            builder.setTitle("Need Multiple Permissions");
            builder.setMessage("This app needs Camera, Location, Storage and Phone permissions.");
            builder.setPositiveButton("Grant", new DialogInterface.OnClickListener() {
                @Override
                public void onClick(DialogInterface dialog, int which) {
                    dialog.cancel();
                    sentToSettings = true;
                    Intent intent = new Intent(Settings.ACTION_APPLICATION_DETAILS_SETTINGS);
                    Uri uri = Uri.fromParts("package", getPackageName(), null);
                    intent.setData(uri);
                    startActivityForResult(intent, REQUEST_PERMISSION_SETTING);
                    // Toast.makeText(getApplicationContext(), "Go to Permissions to Grant  Camera and Location", Toast.LENGTH_LONG).show();
                }
            }).setNegativeButton("Cancel", new DialogInterface.OnClickListener() {
                @Override
                public void onClick(DialogInterface dialog, int which) {
                    dialog.cancel();
                    finish();
                }
            }).create().show();
        } else {
            //just request the permission
            ActivityCompat.requestPermissions(Splash.this, permissionsRequired, PERMISSION_CALLBACK_CONSTANT);
        }

        SharedPreferences.Editor editor = permissionStatus.edit();
        editor.putBoolean(permissionsRequired[0], false);
        editor.putBoolean(permissionsRequired[1], false);
        editor.putBoolean(permissionsRequired[2], false);
        editor.putBoolean(permissionsRequired[3], false);
        editor.apply();
    } else {
        //You already have the permission, just go ahead.
        splashTread.start();
    }
}

And Here is the callback function -

@Override
public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
    if (requestCode == PERMISSION_CALLBACK_CONSTANT) {
        //check if all permissions are granted
        boolean allgranted = false;
        for (int grantResult : grantResults) {
            if (grantResult == PackageManager.PERMISSION_GRANTED) {
                allgranted = true;
            } else {
                allgranted = false;
                break;
            }
        }

        if (allgranted) {
            splashTread.start();
        } else if (ActivityCompat.shouldShowRequestPermissionRationale(Splash.this, permissions[0])
                || ActivityCompat.shouldShowRequestPermissionRationale(Splash.this, permissions[1])
                || ActivityCompat.shouldShowRequestPermissionRationale(Splash.this, permissions[2])
                || ActivityCompat.shouldShowRequestPermissionRationale(Splash.this, permissions[3])) {

            AlertDialog.Builder builder = new AlertDialog.Builder(context);
            builder.setTitle("Need Multiple Permissions");
            builder.setMessage("This app needs Camera, Location, Storage and Phone permissions.");
            builder.setPositiveButton("Grant", new DialogInterface.OnClickListener() {
                @Override
                public void onClick(DialogInterface dialog, int which) {
                    dialog.cancel();
                    ActivityCompat.requestPermissions(Splash.this, permissionsRequired, PERMISSION_CALLBACK_CONSTANT);
                }
            }).setNegativeButton("Cancel", new DialogInterface.OnClickListener() {
                @Override
                public void onClick(DialogInterface dialog, int which) {
                    dialog.cancel();
                    finish();
                }
            }).create().show();
        } else {
            Toast.makeText(getBaseContext(), "Unable to get Permission", Toast.LENGTH_LONG).show();
        }
    }
}

And the splashThread() functions is the function for waiting when all permissions are granted which is working correct but when I deny any permission and proceed so that a new alert dialog should be displayed to send the user to settings but the app crashes at the time of builder.show();

I don't know why I am getting this error even when I have debugged the whole class. Can you please help me finding out the error and its solution ?

Answer 1

Got solution for my answer by rechecking the guidelines of Google for runtime permissions. As its stated there that the

ActivityCompat.shouldShowRequestPermissionRationale()

should not block the thread for user response it should just show the user an explanation for permission requirement.

So, I did it by replacing

 AlertDialog.Builder builder = new AlertDialog.Builder(context);
            builder.setTitle("Need Multiple Permissions");
            builder.setMessage("This app needs Camera, Location, Storage and Phone permissions.");
            builder.setPositiveButton("Grant", new DialogInterface.OnClickListener() {
                @Override
                public void onClick(DialogInterface dialog, int which) {
                    dialog.cancel();
                    ActivityCompat.requestPermissions(Splash.this, permissionsRequired, PERMISSION_CALLBACK_CONSTANT);
                }
            }).setNegativeButton("Cancel", new DialogInterface.OnClickListener() {
                @Override
                public void onClick(DialogInterface dialog, int which) {
                    dialog.cancel();
                    finish();
                }
            }).create().show();

with checkPermission() call