Question

我有这段代码：

<?xml version="1.0" encoding="utf-8"?>
<PreferenceScreen xmlns:android="http://schemas.android.com/apk/res/android">
    <CheckBoxPreference android:key="notification_settings"
        android:text="@string/impostazione"
        android:id="@+id/save_check"
        android:summary="@string/notification_title"
        android:defaultValue="false"

        ></CheckBoxPreference>

</PreferenceScreen>

现在我需要在FragmentA中获取Checkbox值：

sharedPreferences = PreferenceManager.getDefaultSharedPreferences(getActivity());

现在？

Answer 1

请尝试这种方式，希望这有助于您解决问题。

sharedPreferences.getBoolean("notification_settings",false)

getBoolean()：需要两个参数一个是键，另一个是默认值

Answer 2

sharedPreferences = PreferenceManager.getDefaultSharedPreferences(getActivity());
boolean isChecked = sharedPreferences.getBoolean(getString(R.string.notification_settings), false);

Answer 3

strings.xml
<string name="notification_setting">notification_settings</string>
---------------------------------
xxx.xml
.....
<CheckBoxPreference android:key="@string/notification_setting"
....
--------------------------------
.java
sharedPreferences = PreferenceManager.getDefaultSharedPreferences(getActivity());
boolean wifiState = sharedPreferences.getBoolean(R.string.setting_wifi_key, false);

wifiState is you value.

如何获得PreferenceFragment的价值

3 个答案: