UOFLMA-96: Added Alert dialogue when we click on BACK in dynamic forms.

app/src/main/java/com/vsoft/uoflservicenow/ui/CatalogueVariableScreen.java

@@ -368,7 +368,7 @@ public class CatalogueVariableScreen extends AppCompatActivity {
 
     @OnClick(R.id.variable_screen_back_text_view)
     void backOnClicked() {
-        finish();
+        showNavigationBackDialog();
     }
 
     private void saveFormData() {
@@ -626,7 +626,7 @@ public class CatalogueVariableScreen extends AppCompatActivity {
     @Override
     public boolean onOptionsItemSelected(MenuItem menuItem) {
         if (menuItem.getItemId() == android.R.id.home) {
-            finish();
+            showNavigationBackDialog();
         }
         return super.onOptionsItemSelected(menuItem);
     }
@@ -841,4 +841,28 @@ public class CatalogueVariableScreen extends AppCompatActivity {
         AlertDialog alert = builder.create();
         alert.show();
     }
+
+    @Override
+    public void onBackPressed() {
+        showNavigationBackDialog();
+    }
+
+    private void showNavigationBackDialog() {
+        AlertDialog.Builder builder = new AlertDialog.Builder(this);
+        builder.setMessage(R.string.variable_form_back_navigation_string)
+                .setCancelable(false)
+                .setPositiveButton(android.R.string.ok, new DialogInterface.OnClickListener() {
+                    public void onClick(DialogInterface dialog, int id) {
+                        finish();
+                    }
+                })
+                .setNegativeButton(android.R.string.cancel, new DialogInterface.OnClickListener() {
+                    @Override
+                    public void onClick(DialogInterface dialogInterface, int i) {
+                        dialogInterface.dismiss();
+                    }
+                });
+        AlertDialog alert = builder.create();
+        alert.show();
+    }
 }
\ No newline at end of file

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

@@ -56,6 +56,8 @@
     <string name="variable_form_ui_page_button_label_string">Add Attachment</string>
     <string name="variable_form_ui_page_no_selected_attachment_string">Not Selected</string>
 	<string name="custom_setting_storage_permission_dialog_msg_string">To use this feature, please go to Settings -> Apps -> %s -> Permissions and enable \'Storage\' permission</string>
+	<string name="variable_form_back_navigation_string">Are you sure you want to navigate away?</string>
+
 	<!--Catalogue Item Screen-->
 	<string name="no_catalogue_item_string">No Catalogue Items&#8230;</string>