为 CheckboxPreference onClick 切换 return 值

Question

我需要找到一种方法来在单击我的 CheckboxPreference 时切换 return 值。我已经在 settings.xml 中设置了一个密钥。点击效果很好，我只是想知道如何在每次点击时 return 一个新值。

final Preference disableRemixingPref = (Preference) findPreference("disableRemixing");
        disableRemixingPref.setOnPreferenceClickListener(new Preference.OnPreferenceClickListener() {

                // I don't always want to return true here. Basically, on every click I want to return the opposite of what the selection was before.

                return true;
            }

        });

Answer 1

我自己很快就弄明白了。对切换布尔值进行了一些搜索：Cleanest way to toggle a boolean variable in Java?

    final Preference disableRemixingPref = (Preference) findPreference("disableRemixing");
    disableRemixingPref.setOnPreferenceClickListener(new Preference.OnPreferenceClickListener() {

        boolean toggle = false;
        public boolean onPreferenceClick(Preference preference) {
            disableRemixingPref.setSelectable(true);

            // Disable remixing by default
            ParseUser currentUser = ParseUser.getCurrentUser();
            currentUser.put("remixByDefault", toggle);
            currentUser.saveInBackground();

            toggle = !toggle;
            return toggle;
        }

    });

为 CheckboxPreference onClick 切换 return 值

Toggle return value for CheckboxPreference onClick

java

android

android-preferences

checkboxpreference