我遇到了一个问题。我想自定义列表中行的外观,但在解析时出现异常。
style.xml 中的代码片段:
<style name="AppTheme.Main">
<item name="item_shadowColor">#000000</item>
</style>
<style name="item_label">
<item name="android:shadowColor">?attr/item_shadowColor</item>
</style>
attr.xml
<?xml version="1.0" encoding="utf-8"?>
<resources>
<attr name="item_shadowColor" format="color" />
</resources>
list_item.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:orientation="horizontal" >
<TextView
android:id="@id/title"
style="@style/item_label"
android:layout_width="fill_parent"
android:layout_height="fill_parent"/>
</LinearLayout>
还有异常情况
FATAL EXCEPTION: main
android.view.InflateException: Binary XML file line #7: Error inflating class <unknown>
at android.view.LayoutInflater.createView(LayoutInflater.java:606)
at com.android.internal.policy.impl.PhoneLayoutInflater.onCreateView(PhoneLayoutInflater.java:56)
at android.view.LayoutInflater.onCreateView(LayoutInflater.java:653)
at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:678)
at android.view.LayoutInflater.rInflate(LayoutInflater.java:739)
at android.view.LayoutInflater.inflate(LayoutInflater.java:489)
at android.view.LayoutInflater.inflate(LayoutInflater.java:396)
at ru.mts.goodok.adapter.CategoryListAdapter.getView(CategoryListAdapter.java:30)
at android.widget.AbsListView.obtainView(AbsListView.java:2052)
at android.widget.ListView.makeAndAddView(ListView.java:1820)
at android.widget.ListView.fillDown(ListView.java:672)
at android.widget.ListView.fillFromTop(ListView.java:732)
at android.widget.ListView.layoutChildren(ListView.java:1673)
at android.widget.AbsListView.onLayout(AbsListView.java:1882)
at android.view.View.layout(View.java:11425)
at android.view.ViewGroup.layout(ViewGroup.java:4232)
at android.widget.RelativeLayout.onLayout(RelativeLayout.java:925)
at android.view.View.layout(View.java:11425)
at android.view.ViewGroup.layout(ViewGroup.java:4232)
at android.widget.FrameLayout.onLayout(FrameLayout.java:431)
at android.view.View.layout(View.java:11425)
at android.view.ViewGroup.layout(ViewGroup.java:4232)
at android.widget.LinearLayout.setChildFrame(LinearLayout.java:1628)
at android.widget.LinearLayout.layoutVertical(LinearLayout.java:1486)
at android.widget.LinearLayout.onLayout(LinearLayout.java:1399)
at android.view.View.layout(View.java:11425)
at android.view.ViewGroup.layout(ViewGroup.java:4232)
at android.widget.FrameLayout.onLayout(FrameLayout.java:431)
at android.view.View.layout(View.java:11425)
at android.view.ViewGroup.layout(ViewGroup.java:4232)
at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:1516)
at android.view.ViewRootImpl.handleMessage(ViewRootImpl.java:2505)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:154)
at android.app.ActivityThread.main(ActivityThread.java:4945)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:511)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:784)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:551)
at dalvik.system.NativeStart.main(Native Method)
Caused by: java.lang.reflect.InvocationTargetException
at java.lang.reflect.Constructor.constructNative(Native Method)
at java.lang.reflect.Constructor.newInstance(Constructor.java:417)
at android.view.LayoutInflater.createView(LayoutInflater.java:586)
... 39 more
Caused by: java.lang.NumberFormatException: Invalid int: "?2130771972"
at java.lang.Integer.invalidInt(Integer.java:138)
at java.lang.Integer.parse(Integer.java:375)
at java.lang.Integer.parseInt(Integer.java:366)
at com.android.internal.util.XmlUtils.convertValueToInt(XmlUtils.java:123)
at android.content.res.TypedArray.getInt(TypedArray.java:254)
at android.widget.TextView.<init>(TextView.java:829)
at android.widget.TextView.<init>(TextView.java:489)
... 42 more
我做错了什么,该如何解决这个问题?