Remove dead code from dialog util (commons-app#2612)

Author: maskaravivek

app/src/main/java/fr/free/nrw/commons/utils/DialogUtil.java

@@ -2,52 +2,21 @@
 
 import android.app.Activity;
 import android.app.AlertDialog;
-import android.app.AlertDialog.Builder;
 import android.app.Dialog;
-import android.content.Context;
 import android.content.DialogInterface;
-import android.os.Build;
-import androidx.annotation.Nullable;
-import androidx.fragment.app.DialogFragment;
-import androidx.fragment.app.FragmentActivity;
 import android.view.View;
 
 import fr.free.nrw.commons.R;
 import timber.log.Timber;
 
 public class DialogUtil {
 
-    /**
-     * Dismisses a dialog safely.
-     * @param activity the activity
-     * @param dialog the dialog to be dismissed
-     */
-    public static void dismissSafely(@Nullable Activity activity, @Nullable DialogFragment dialog) {
-        boolean isActivityDestroyed = false;
-
-        if (activity == null || dialog == null) {
-            Timber.d("dismiss called with null activity / dialog. Ignoring.");
-            return;
-        }
-
-        isActivityDestroyed = activity.isDestroyed();
-        if (activity.isFinishing() || isActivityDestroyed) {
-            return;
-        }
-        try {
-            dialog.dismiss();
-
-        } catch (IllegalStateException e) {
-            Timber.e(e, "Could not dismiss dialog.");
-        }
-    }
-
     /**
      * Shows a dialog safely.
      * @param activity the activity
      * @param dialog the dialog to be shown
      */
-    public static void showSafely(Activity activity, Dialog dialog) {
+    private static void showSafely(Activity activity, Dialog dialog) {
         if (activity == null || dialog == null) {
             Timber.d("Show called with null activity / dialog. Ignoring.");
             return;
@@ -65,52 +34,6 @@ public static void showSafely(Activity activity, Dialog dialog) {
         }
     }
 
-    /**
-     * Shows a dialog safely.
-     * @param activity the activity
-     * @param dialog the dialog to be shown
-     */
-    public static void showSafely(FragmentActivity activity, DialogFragment dialog) {
-        boolean isActivityDestroyed = false;
-
-        if (activity == null || dialog == null) {
-            Timber.d("show called with null activity / dialog. Ignoring.");
-            return;
-        }
-
-        isActivityDestroyed = activity.isDestroyed();
-        if (activity.isFinishing() || isActivityDestroyed) {
-            return;
-        }
-
-        try {
-            if (dialog.getDialog() == null || !dialog.getDialog().isShowing()) {
-                dialog.show(activity.getSupportFragmentManager(), dialog.getClass().getSimpleName());
-            }
-        } catch (IllegalStateException e) {
-            Timber.e(e, "Could not show dialog.");
-        }
-    }
-
-    public static AlertDialog getAlertDialogWithPositiveAndNegativeCallbacks(
-            Context context, String title, String message, int iconResourceId, Callback callback) {
-
-        AlertDialog alertDialog = new Builder(context)
-                .setTitle(title)
-                .setMessage(message)
-                .setPositiveButton(context.getString(R.string.ok), (dialog, which) -> {
-                    callback.onPositiveButtonClicked();
-                    dialog.dismiss();
-                })
-                .setNegativeButton(context.getString(R.string.cancel), (dialog, which) -> {
-                    callback.onNegativeButtonClicked();
-                    dialog.dismiss();
-                })
-                .setIcon(iconResourceId).create();
-
-        return alertDialog;
-    }
-
     public static void showAlertDialog(Activity activity,
                                        String title,
                                        String message,
@@ -182,14 +105,14 @@ public static void showAlertDialog(Activity activity,
     /*
     Shows alert dialog with custom view
      */
-    public static void showAlertDialog(Activity activity,
-                                       String title,
-                                       String message,
-                                       String positiveButtonText,
-                                       String negativeButtonText,
-                                       final Runnable onPositiveBtnClick,
-                                       final Runnable onNegativeBtnClick,
-                                       View customView,
+    private static void showAlertDialog(Activity activity,
+                                        String title,
+                                        String message,
+                                        String positiveButtonText,
+                                        String negativeButtonText,
+                                        final Runnable onPositiveBtnClick,
+                                        final Runnable onNegativeBtnClick,
+                                        View customView,
                                         boolean cancelable) {
         AlertDialog.Builder builder = new AlertDialog.Builder(activity);
         builder.setTitle(title);
@@ -215,10 +138,4 @@ public static void showAlertDialog(Activity activity,
         showSafely(activity, dialog);
     }
 
-    public  interface Callback {
-
-        void onPositiveButtonClicked();
-
-        void onNegativeButtonClicked();
-    }
 }