小编use*_*037的帖子

我做了一个简单PreferenceScreen的多重Preference Categorys和CheckBoxPreferences.

<PreferenceScreen xmlns:android="http://schemas.android.com/apk/res/android">

    <PreferenceCategory android:title="General">

        <CheckBoxPreference
            android:title="GPS"
            android:key="gps_preference"
            android:summary="Enales the GPS tracking of your device"
            android:defaultValue="true"
            ></CheckBoxPreference>

        <SwitchPreference
        android:title="WLAN"
        android:key="wlan_preference"
        android:summary="Enables the WLAN usage"
        android:defaultValue="true"></SwitchPreference>

        <CheckBoxPreference
            android:title="Benachrichtigungen"
            android:key="benachrichtigung_preference"
            android:summary="Enables the Push messages"
            android:defaultValue="true"
            ></CheckBoxPreference>

    </PreferenceCategory>
</PreferenceScreen>

此首选项屏幕位于a android.support.v7.preference.PreferenceFragmentCompat.如果我像往常一样离开,那一切都很好.

但是,如果我想转出一个CheckBoxPreference的SwitchPreference(应该通过简单地切换出来的XML标记的工作CheckBoxPreference与SwitchPreference我得到我的渲染错误)design标签:

渲染期间引发异常:android.preference.CheckBoxPreference无法强制转换为android.preference.GenericInflater $ Parent

堆栈跟踪:

android.view.InflateException: Binary XML file line #15: Error inflating class (not found)SwitchPreference
                                                                               at android.support.v7.preference.PreferenceInflater.createItemFromTag(PreferenceInflater.java:301)
                                                                               at android.support.v7.preference.PreferenceInflater.rInflate(PreferenceInflater.java:359)
                                                                               at android.support.v7.preference.PreferenceInflater.rInflate(PreferenceInflater.java:361)
                                                                               at android.support.v7.preference.PreferenceInflater.inflate(PreferenceInflater.java:167) …