Android 优惠活动牛轧糖不起作用

我在android中使用了以下代码，但在android emulator中不起作用

给出以下错误

      --------- beginning of crash
04-17 17:53:48.076 4802-4802/com.package E/AndroidRuntime: FATAL EXCEPTION: main
                                                              Process: com.package, PID: 4802
                                                              android.view.InflateException: Binary XML file line #30: Error inflating class <unknown>
                                                                  at android.view.LayoutInflater.createView(LayoutInflater.java:633)
                                                                  at com.android.internal.policy.impl.PhoneLayoutInflater.onCreateView(PhoneLayoutInflater.java:55)
                                                                  at android.view.LayoutInflater.onCreateView(LayoutInflater.java:682)
                                                                  at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:741)
                                                                  at android.view.LayoutInflater.inflate(LayoutInflater.java:482)
                                                                  at android.view.LayoutInflater.inflate(LayoutInflater.java:414)
                                                                  at android.preference.Preference.onCreateView(Preference.java:510)
                                                                  at android.preference.Preference.getView(Preference.java:487)
                                                                  at android.preference.PreferenceGroupAdapter.getView(PreferenceGroupAdapter.java:246)
                                                                  at android.widget.AbsListView.obtainView(AbsListView.java:2347)
                                                                  at android.widget.ListView.makeAndAddView(ListView.java:1864)
                                                                  at android.widget.ListView.fillDown(ListView.java:698)
                                                                  at android.widget.ListView.fillFromTop(ListView.java:759)
                                                                  at android.widget.ListView.layoutChildren(ListView.java:1673)
                                                                  at android.widget.AbsListView.onLayout(AbsListView.java:2151)
                                                                  at android.view.View.layout(View.java:15671)
                                                                  at android.view.ViewGroup.layout(ViewGroup.java:5038)
                                                                  at android.widget.LinearLayout.setChildFrame(LinearLayout.java:1703)
                                                                  at android.widget.LinearLayout.layoutVertical(LinearLayout.java:1557)
                                                                  at android.widget.LinearLayout.onLayout(LinearLayout.java:1466)
                                                                  at android.view.View.layout(View.java:15671)
                                                                  at android.view.ViewGroup.layout(ViewGroup.java:5038)
                                                                  at android.widget.FrameLayout.layoutChildren(FrameLayout.java:579)
                                                                  at android.widget.FrameLayout.onLayout(FrameLayout.java:514)
                                                                  at android.view.View.layout(View.java:15671)
                                                                  at android.view.ViewGroup.layout(ViewGroup.java:5038)
                                                                  at android.widget.LinearLayout.setChildFrame(LinearLayout.java:1703)
                                                                  at android.widget.LinearLayout.layoutVertical(LinearLayout.java:1557)
                                                                  at android.widget.LinearLayout.onLayout(LinearLayout.java:1466)
                                                                  at android.view.View.layout(View.java:15671)
                                                                  at android.view.ViewGroup.layout(ViewGroup.java:5038)
                                                                  at android.widget.FrameLayout.layoutChildren(FrameLayout.java:579)
                                                                  at android.widget.FrameLayout.onLayout(FrameLayout.java:514)
                                                                  at android.view.View.layout(View.java:15671)
                                                                  at android.view.ViewGroup.layout(ViewGroup.java:5038)
                                                                  at android.widget.FrameLayout.layoutChildren(FrameLayout.java:579)
                                                                  at android.widget.FrameLayout.onLayout(FrameLayout.java:514)
                                                                  at android.view.View.layout(View.java:15671)
                                                                  at android.view.ViewGroup.layout(ViewGroup.java:5038)
                                                                  at android.widget.LinearLayout.setChildFrame(LinearLayout.java:1703)
                                                                  at android.widget.LinearLayout.layoutVertical(LinearLayout.java:1557)
                                                                  at android.widget.LinearLayout.onLayout(LinearLayout.java:1466)
                                                                  at android.view.View.layout(View.java:15671)
                                                                  at android.view.ViewGroup.layout(ViewGroup.java:5038)
                                                                  at android.widget.FrameLayout.layoutChildren(FrameLayout.java:579)
                                                                  at android.widget.FrameLayout.onLayout(FrameLayout.java:514)
                                                                  at android.view.View.layout(View.java:15671)
                                                                  at android.view.ViewGroup.layout(ViewGroup.java:5038)
                                                                  at android.widget.FrameLayout.layoutChildren(FrameLayout.java:579)
                                                                  at android.widget.FrameLayout.onLayout(FrameLayout.java:514)
                                                                  at android.view.View.layout(View.java:15671)
                                                                  at android.view.ViewGroup.layout(ViewGroup.java:5038)
                                                                  at android.widget.LinearLayout.setChildFrame(LinearLayout.java:1703)
                                                                  at android.widget.LinearLayout.layoutVertical(LinearLayout.java:1557)
                                                                  at android.widget.LinearLayout.onLayout(LinearLayout.java:1466)
                                                                  at android.view.View.layout(View.java:15671)
                                                                  at android.view.ViewGroup.layout(ViewGroup.java:5038)
                                                                  at android.widget.FrameLayout.layoutChildren(FrameLayout.java:579)
                                                                  at android.widget.FrameLayout.onLayout(FrameLayout.java:514)
                                                                  at android.view.View.layout(View.java:15671)
                                                                  at android.view.ViewGroup.layout(ViewGroup.java:5038)
                                                                  at android.view.ViewRootImpl.performLayout(ViewRootImpl.java:2086)
                                                                  at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:1843)
                                                                at android.view.ViewRootImpl
04-17 17:53:48.077 1965-2042/system_process W/ActivityManager:   Force finishing activity 1 com.package/.MyTabActivity

下面是

Settings.xml

文件的代码

<?xml version="1.0" encoding="utf-8"?>
<PreferenceScreen xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:switchpref="http://schemas.android.com/apk/res-auto"
    android:persistent="true" >

    <PreferenceCategory
        android:key="@string/settings_general"
        android:title="@string/settings_general" >
        <ListPreference
            android:key="@string/pitch_duration"
            android:title="@string/pitch_duration"
            android:defaultValue="@string/pitch_standard"
            android:entries="@array/pitch"
            android:entryValues="@array/pitch"
            android:summary="@string/summary_pitch_duration"
            />
        <ListPreference
            android:key="@string/recording_type"
            android:title="@string/recording_type"
            android:defaultValue="@string/audio_recording"
            android:entries="@array/recording_type"
            android:entryValues="@array/recording_type"
            android:summary="@string/summary_recording_type"
             />

        <org.jraf.android.backport.switchwidget.SwitchPreference
            android:key="@string/question_text"
            android:title="@string/question_text"
            switchpref:asb_summaryOff="@string/switch_prefs_question_text"
            switchpref:asb_summaryOn="@string/switch_prefs_question_text"
            switchpref:asb_switchTextOff="@string/off"
            switchpref:asb_switchTextOn="@string/on"/>

        <org.jraf.android.backport.switchwidget.SwitchPreference
            android:key="@string/visualizer"
            android:title="@string/visualizer"
            android:defaultValue="false"
            switchpref:asb_summaryOff="@string/switch_prefs_visualizer"
            switchpref:asb_summaryOn="@string/switch_prefs_visualizer"
            switchpref:asb_switchTextOff="@string/off"
            switchpref:asb_switchTextOn="@string/on" />

        <ListPreference
            android:key="@string/visualizer_type"
            android:title="@string/visualizer_type"
            android:defaultValue="@string/visualizer_line"
            android:entries="@array/visualizer_type"
            android:entryValues="@array/visualizer_type"
            android:summary="@string/summary_visualizer_type"
             />
        <com.iq.android.preferences.AboutDialogPref
            android:dialogLayout="@layout/dialog_about_layout"
            android:key="funThing"
            android:negativeButtonText="Cancel"
            android:positiveButtonText="OK"
            android:title="About" />
    </PreferenceCategory>

</PreferenceScreen>

---

以上全部代码在android 4.4.4模拟器和设备中也能正常工作。

最后我解决了我们的问题

下面的库中存在问题。这不适用于PreferenceFragment

---

因此，我已经实现了它。

我建议您编辑这个问题并发布整个Java堆栈跟踪。我还建议您暂时注释掉第三方首选项，看看其中是否有一个是问题的根源。是的，我已尝试删除所有库并进行检查，但代码仍然不起作用。我将更新完整堆栈跟踪。您确定

org.jraf.android.backport.switchwidget.SwitchPreference

和

com.iq.android.preferences.AboutDialogPref

是有效的类吗？仔细检查包名。是的，我已经在没有库的情况下测试了它，但它仍然不工作，然后我将删除所有其他库和更新代码。

<?xml version="1.0" encoding="utf-8"?>
<PreferenceScreen xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:switchpref="http://schemas.android.com/apk/res-auto"
    android:persistent="true" >

    <PreferenceCategory
        android:key="@string/settings_general"
        android:title="@string/settings_general" >
        <ListPreference
            android:key="@string/pitch_duration"
            android:title="@string/pitch_duration"
            android:defaultValue="@string/pitch_standard"
            android:entries="@array/pitch"
            android:entryValues="@array/pitch"
            android:summary="@string/summary_pitch_duration"
            />
        <ListPreference
            android:key="@string/recording_type"
            android:title="@string/recording_type"
            android:defaultValue="@string/audio_recording"
            android:entries="@array/recording_type"
            android:entryValues="@array/recording_type"
            android:summary="@string/summary_recording_type"
             />

        <org.jraf.android.backport.switchwidget.SwitchPreference
            android:key="@string/question_text"
            android:title="@string/question_text"
            switchpref:asb_summaryOff="@string/switch_prefs_question_text"
            switchpref:asb_summaryOn="@string/switch_prefs_question_text"
            switchpref:asb_switchTextOff="@string/off"
            switchpref:asb_switchTextOn="@string/on"/>

        <org.jraf.android.backport.switchwidget.SwitchPreference
            android:key="@string/visualizer"
            android:title="@string/visualizer"
            android:defaultValue="false"
            switchpref:asb_summaryOff="@string/switch_prefs_visualizer"
            switchpref:asb_summaryOn="@string/switch_prefs_visualizer"
            switchpref:asb_switchTextOff="@string/off"
            switchpref:asb_switchTextOn="@string/on" />

        <ListPreference
            android:key="@string/visualizer_type"
            android:title="@string/visualizer_type"
            android:defaultValue="@string/visualizer_line"
            android:entries="@array/visualizer_type"
            android:entryValues="@array/visualizer_type"
            android:summary="@string/summary_visualizer_type"
             />
        <com.iq.android.preferences.AboutDialogPref
            android:dialogLayout="@layout/dialog_about_layout"
            android:key="funThing"
            android:negativeButtonText="Cancel"
            android:positiveButtonText="OK"
            android:title="About" />
    </PreferenceCategory>

</PreferenceScreen>