为清空拓展卡包增加提前确认

mobile/src/main/java/cn/garymb/ygomobile/ui/preference/fragments/SettingFragment.java

@@ -220,8 +220,18 @@ public class SettingFragment extends PreferenceFragmentPlus {
             Beta.checkUpgrade();
         }
         if (PREF_DEL_EX.equals(key)) {
+            final DialogPlus dialog = new DialogPlus(getContext());
+            dialog.setTitle(R.string.question);
+            dialog.setMessage(R.string.ask_delete_ex);
+            dialog.setLeftButtonListener((dlg, s) -> {
+                dialog.dismiss();
+            });
+            dialog.setRightButtonListener((dlg, s) -> {
                 FileUtils.delFile(mSettings.getExpansionsPath().getAbsolutePath());
                 Toast.makeText(getContext(), R.string.done, Toast.LENGTH_LONG).show();
+                dialog.dismiss();
+            });
+            dialog.show();
         }
         if (PREF_PENDULUM_SCALE.equals(key)) {
             CheckBoxPreference checkBoxPreference = (CheckBoxPreference) preference;