Handled permissions permanently denied case

Author: ravi8x

README.MD

@@ -2,11 +2,11 @@ Android Choosing Image from Camera or Gallery with Crop Functionality
 ===================
 Android sample project demonstrating choosing an image from gallery or camera with the cropping functionality.
 
+![Demo](https://www.androidhive.info/wp-content/uploads/2019/02/android-image-from-gallery-or-camera-with-crop-min.jpg)
+
 | [Complete Tutorial](https://www.androidhive.info/2018/01/android-content-placeholder-animation-like-facebook-using-shimmer/#disqus_thread)      |  [Apk](http://download.androidhive.info/apk/shimmer.apk) | [Video Demo](https://www.youtube.com/watch?v=j-TPBl39rDk)|
 |----------|--------|------|
 
-![Demo](https://www.androidhive.info/wp-content/uploads/2019/02/android-image-from-gallery-or-camera-with-crop-min.jpg)
-
 uCrop
 ---
 Thanks to [Yalantis](https://github.com/Yalantis) for providing such a beautiful cropping ([uCrop](https://github.com/Yalantis/uCrop)) library. This example uses the uCrop library for cropping functionality.
@@ -203,4 +203,14 @@ Intent Parameters:
 | INTENT_BITMAP_MAX_WIDTH   | The maximum width of the cropped image        |
 | INTENT_BITMAP_MAX_HEIGHT   | The maximum height of the cropped image        |
 
-If you want additional options, you can customize the image picker activity.
+If you want additional options, you can customize the image picker activity.
+
+Deleting Cached Images:
+==========
+While the image are taken with camera, they will stored in cached directory. You can clear the cached images once the bitmap is utilized.
+```java
+// Clearing older images from cache directory
+// don't call this line if you want to choose multiple images in the same activity
+// call this once the bitmap(s) usage is over
+ImagePickerActivity.clearCache(this);
+```

app/src/main/java/info/androidhive/imagepicker/MainActivity.java

@@ -2,13 +2,16 @@
 
 import android.Manifest;
 import android.app.Activity;
+import android.content.DialogInterface;
 import android.content.Intent;
 import android.graphics.Bitmap;
 import android.net.Uri;
 import android.os.Bundle;
 import android.provider.MediaStore;
+import android.provider.Settings;
 import android.support.annotation.Nullable;
 import android.support.v4.content.ContextCompat;
+import android.support.v7.app.AlertDialog;
 import android.support.v7.app.AppCompatActivity;
 import android.support.v7.widget.Toolbar;
 import android.util.Log;
@@ -45,6 +48,10 @@ protected void onCreate(Bundle savedInstanceState) {
         getSupportActionBar().setTitle(null);
 
         loadProfileDefault();
+
+        // Clearing older images from cache directory
+        // don't call this line if you want to choose multiple images in the same activity
+        // call this once the bitmap(s) usage is over
         ImagePickerActivity.clearCache(this);
     }
 
@@ -71,8 +78,10 @@ void onProfileImageClick() {
                     public void onPermissionsChecked(MultiplePermissionsReport report) {
                         if (report.areAllPermissionsGranted()) {
                             showImagePickerOptions();
-                        } else {
-                            // TODO - handle permission denied case
+                        }
+
+                        if (report.isAnyPermissionPermanentlyDenied()) {
+                            showSettingsDialog();
                         }
                     }
 
@@ -142,4 +151,30 @@ protected void onActivityResult(int requestCode, int resultCode, @Nullable Inten
             }
         }
     }
+
+    /**
+     * Showing Alert Dialog with Settings option
+     * Navigates user to app settings
+     * NOTE: Keep proper title and message depending on your app
+     */
+    private void showSettingsDialog() {
+        AlertDialog.Builder builder = new AlertDialog.Builder(MainActivity.this);
+        builder.setTitle(getString(R.string.dialog_permission_title));
+        builder.setMessage(getString(R.string.dialog_permission_message));
+        builder.setPositiveButton(getString(R.string.go_to_settings), (dialog, which) -> {
+            dialog.cancel();
+            openSettings();
+        });
+        builder.setNegativeButton(getString(android.R.string.cancel), (dialog, which) -> dialog.cancel());
+        builder.show();
+
+    }
+
+    // navigating user to app settings
+    private void openSettings() {
+        Intent intent = new Intent(Settings.ACTION_APPLICATION_DETAILS_SETTINGS);
+        Uri uri = Uri.fromParts("package", getPackageName(), null);
+        intent.setData(uri);
+        startActivityForResult(intent, 101);
+    }
 }

app/src/main/res/values/strings.xml

@@ -19,4 +19,7 @@
     <string name="font_family_condensed">sans-serif-condensed</string>
     <string name="font_family_black">sans-serif-black</string>
     <string name="font_family_thin">sans-serif-thin</string>
+    <string name="dialog_permission_title">Grant Permissions</string>
+    <string name="dialog_permission_message">This app needs permission to use this feature. You can grant them in app settings.</string>
+    <string name="go_to_settings">GOTO SETTINGS</string>
 </resources>