android - 无法将自定义选择器添加到 ListView

标签 android android-layout android-listview android-selector

所以，我有一个带有自定义布局的 ListFragment，它有一个自定义 CursorAdapter，可将自定义 View 传递给 ListView。 ListView 将其选择模式设置为 MultiChoiceModal。但是，无论我是在正常模式下选择一个项目还是在操作模式下选择多个项目，所选项目都不会突出显示。为了解决这个问题，我尝试了一个选择器。

<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
    <item android:color="@android:color/holo_blue_dark"
        android:state_pressed="true" />
    <item android:color="@android:color/holo_blue_light"
        android:state_checked="true" />
    <item android:color="@android:color/holo_blue_bright"
        android:state_selected="true" />
</selector>

然而，将此应用到 ListView 作为列表的 List Selector 只会导致应用程序崩溃，并在我尝试运行它时出现此错误:

04-04 15:01:41.196: E/AndroidRuntime(849): FATAL EXCEPTION: main
04-04 15:01:41.196: E/AndroidRuntime(849): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.mowdowndevelopments.vault/com.mowdowndevelopments.vault.AccountListActivity}: android.view.InflateException: Binary XML file line #9: Error inflating class android.widget.ListView
04-04 15:01:41.196: E/AndroidRuntime(849):  at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2180)
04-04 15:01:41.196: E/AndroidRuntime(849):  at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2230)
04-04 15:01:41.196: E/AndroidRuntime(849):  at android.app.ActivityThread.access$600(ActivityThread.java:141)
04-04 15:01:41.196: E/AndroidRuntime(849):  at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1234)
04-04 15:01:41.196: E/AndroidRuntime(849):  at android.os.Handler.dispatchMessage(Handler.java:99)
04-04 15:01:41.196: E/AndroidRuntime(849):  at android.os.Looper.loop(Looper.java:137)
04-04 15:01:41.196: E/AndroidRuntime(849):  at android.app.ActivityThread.main(ActivityThread.java:5041)
04-04 15:01:41.196: E/AndroidRuntime(849):  at java.lang.reflect.Method.invokeNative(Native Method)
04-04 15:01:41.196: E/AndroidRuntime(849):  at java.lang.reflect.Method.invoke(Method.java:511)
04-04 15:01:41.196: E/AndroidRuntime(849):  at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:793)
04-04 15:01:41.196: E/AndroidRuntime(849):  at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:560)
04-04 15:01:41.196: E/AndroidRuntime(849):  at dalvik.system.NativeStart.main(Native Method)
04-04 15:01:41.196: E/AndroidRuntime(849): Caused by: android.view.InflateException: Binary XML file line #9: Error inflating class android.widget.ListView
04-04 15:01:41.196: E/AndroidRuntime(849):  at android.view.LayoutInflater.createView(LayoutInflater.java:613)
04-04 15:01:41.196: E/AndroidRuntime(849):  at com.android.internal.policy.impl.PhoneLayoutInflater.onCreateView(PhoneLayoutInflater.java:56)
04-04 15:01:41.196: E/AndroidRuntime(849):  at android.view.LayoutInflater.onCreateView(LayoutInflater.java:660)
04-04 15:01:41.196: E/AndroidRuntime(849):  at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:685)
04-04 15:01:41.196: E/AndroidRuntime(849):  at android.view.LayoutInflater.rInflate(LayoutInflater.java:746)
04-04 15:01:41.196: E/AndroidRuntime(849):  at android.view.LayoutInflater.inflate(LayoutInflater.java:489)
04-04 15:01:41.196: E/AndroidRuntime(849):  at android.view.LayoutInflater.inflate(LayoutInflater.java:396)
04-04 15:01:41.196: E/AndroidRuntime(849):  at com.mowdowndevelopments.vault.AccountListFragment.onCreateView(AccountListFragment.java:121)
04-04 15:01:41.196: E/AndroidRuntime(849):  at android.app.Fragment.performCreateView(Fragment.java:1695)
04-04 15:01:41.196: E/AndroidRuntime(849):  at android.app.FragmentManagerImpl.moveToState(FragmentManager.java:861)
04-04 15:01:41.196: E/AndroidRuntime(849):  at android.app.FragmentManagerImpl.moveToState(FragmentManager.java:1035)
04-04 15:01:41.196: E/AndroidRuntime(849):  at android.app.FragmentManagerImpl.addFragment(FragmentManager.java:1137)
04-04 15:01:41.196: E/AndroidRuntime(849):  at android.app.Activity.onCreateView(Activity.java:4717)
04-04 15:01:41.196: E/AndroidRuntime(849):  at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:680)
04-04 15:01:41.196: E/AndroidRuntime(849):  at android.view.LayoutInflater.inflate(LayoutInflater.java:466)
04-04 15:01:41.196: E/AndroidRuntime(849):  at android.view.LayoutInflater.inflate(LayoutInflater.java:396)
04-04 15:01:41.196: E/AndroidRuntime(849):  at android.view.LayoutInflater.inflate(LayoutInflater.java:352)
04-04 15:01:41.196: E/AndroidRuntime(849):  at com.android.internal.policy.impl.PhoneWindow.setContentView(PhoneWindow.java:270)
04-04 15:01:41.196: E/AndroidRuntime(849):  at android.app.Activity.setContentView(Activity.java:1881)
04-04 15:01:41.196: E/AndroidRuntime(849):  at com.mowdowndevelopments.vault.AccountListActivity.onCreate(AccountListActivity.java:45)
04-04 15:01:41.196: E/AndroidRuntime(849):  at android.app.Activity.performCreate(Activity.java:5104)
04-04 15:01:41.196: E/AndroidRuntime(849):  at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1080)
04-04 15:01:41.196: E/AndroidRuntime(849):  at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2144)
04-04 15:01:41.196: E/AndroidRuntime(849):  ... 11 more
04-04 15:01:41.196: E/AndroidRuntime(849): Caused by: java.lang.reflect.InvocationTargetException
04-04 15:01:41.196: E/AndroidRuntime(849):  at java.lang.reflect.Constructor.constructNative(Native Method)
04-04 15:01:41.196: E/AndroidRuntime(849):  at java.lang.reflect.Constructor.newInstance(Constructor.java:417)
04-04 15:01:41.196: E/AndroidRuntime(849):  at android.view.LayoutInflater.createView(LayoutInflater.java:587)
04-04 15:01:41.196: E/AndroidRuntime(849):  ... 33 more
04-04 15:01:41.196: E/AndroidRuntime(849): Caused by: android.content.res.Resources$NotFoundException: File res/color/view_selector_background.xml from drawable resource ID #0x7f0a0000
04-04 15:01:41.196: E/AndroidRuntime(849):  at android.content.res.Resources.loadDrawable(Resources.java:1953)
04-04 15:01:41.196: E/AndroidRuntime(849):  at android.content.res.TypedArray.getDrawable(TypedArray.java:601)
04-04 15:01:41.196: E/AndroidRuntime(849):  at android.widget.AbsListView.<init>(AbsListView.java:772)
04-04 15:01:41.196: E/AndroidRuntime(849):  at android.widget.ListView.<init>(ListView.java:143)
04-04 15:01:41.196: E/AndroidRuntime(849):  at android.widget.ListView.<init>(ListView.java:139)
04-04 15:01:41.196: E/AndroidRuntime(849):  ... 36 more
04-04 15:01:41.196: E/AndroidRuntime(849): Caused by: org.xmlpull.v1.XmlPullParserException: Binary XML file line #4: <item> tag requires a 'drawable' attribute or child tag defining a drawable
04-04 15:01:41.196: E/AndroidRuntime(849):  at android.graphics.drawable.StateListDrawable.inflate(StateListDrawable.java:178)
04-04 15:01:41.196: E/AndroidRuntime(849):  at android.graphics.drawable.Drawable.createFromXmlInner(Drawable.java:885)
04-04 15:01:41.196: E/AndroidRuntime(849):  at android.graphics.drawable.Drawable.createFromXml(Drawable.java:822)
04-04 15:01:41.196: E/AndroidRuntime(849):  at android.content.res.Resources.loadDrawable(Resources.java:1950)
04-04 15:01:41.196: E/AndroidRuntime(849):  ... 40 more

它还会导致 Eclipse 报错:

org.xmlpull.v1.XmlPullParserException: Binary XML file line #3: <item> tag requires a 'drawable' attribute or child tag defining a drawable
    at android.graphics.drawable.StateListDrawable.inflate(StateListDrawable.java:178)
    at android.graphics.drawable.Drawable.createFromXmlInner(Drawable.java:885)
    at android.graphics.drawable.Drawable.createFromXml(Drawable.java:822)
    at com.android.layoutlib.bridge.impl.ResourceHelper.getDrawable(ResourceHelper.java:208)
    at android.content.res.BridgeTypedArray.getDrawable(BridgeTypedArray.java:782)
    at android.view.View.<init>(View.java:3330)
    at android.view.View.<init>(View.java:3259)
    at android.view.ViewGroup.<init>(ViewGroup.java:425)
    at android.widget.RelativeLayout.<init>(RelativeLayout.java:210)
    at sun.reflect.GeneratedConstructorAccessor64.newInstance(Unknown Source)
    at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
    at java.lang.reflect.Constructor.newInstance(Constructor.java:525)
    at android.view.LayoutInflater.createView(LayoutInflater.java:587)
    at android.view.BridgeInflater.onCreateView(BridgeInflater.java:86)
    at android.view.LayoutInflater.onCreateView(LayoutInflater.java:660)
    at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:685)
    at android.view.BridgeInflater.createViewFromTag(BridgeInflater.java:131)
    at android.view.LayoutInflater.inflate(LayoutInflater.java:466)
    at android.view.LayoutInflater.inflate(LayoutInflater.java:372)
    at com.android.layoutlib.bridge.impl.RenderSessionImpl.inflate(RenderSessionImpl.java:385)
    at com.android.layoutlib.bridge.Bridge.createSession(Bridge.java:332)
    at com.android.ide.common.rendering.LayoutLibrary.createSession(LayoutLibrary.java:325)
    at com.android.ide.eclipse.adt.internal.editors.layout.gle2.RenderService.createRenderSession(RenderService.java:440)
    at com.android.ide.eclipse.adt.internal.editors.layout.gle2.RenderPreview.renderSync(RenderPreview.java:560)
    at com.android.ide.eclipse.adt.internal.editors.layout.gle2.RenderPreview.access$5(RenderPreview.java:506)
    at com.android.ide.eclipse.adt.internal.editors.layout.gle2.RenderPreview$RenderJob.runInUIThread(RenderPreview.java:1230)
    at org.eclipse.ui.progress.UIJob$1.run(UIJob.java:95)
    at org.eclipse.swt.widgets.RunnableLock.run(RunnableLock.java:35)
    at org.eclipse.swt.widgets.Synchronizer.runAsyncMessages(Synchronizer.java:135)
    at org.eclipse.swt.widgets.Display.runAsyncMessages(Display.java:3529)
    at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3182)
    at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:2701)
    at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:2665)
    at org.eclipse.ui.internal.Workbench.access$4(Workbench.java:2499)
    at org.eclipse.ui.internal.Workbench$7.run(Workbench.java:679)
    at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332)
    at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:668)
    at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:149)
    at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:124)
    at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:196)
    at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:110)
    at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:79)
    at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:353)
    at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:180)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:601)
    at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:629)
    at org.eclipse.equinox.launcher.Main.basicRun(Main.java:584)
    at org.eclipse.equinox.launcher.Main.run(Main.java:1438)
    at org.eclipse.equinox.launcher.Main.main(Main.java:1414)

在将选择器应用于自定义 View 的根布局(具体来说，作为背景)时，我从 Eclipse 收到了同样的投诉，因此逻辑表明我会遇到类似的错误。我做错了什么吗？

编辑:好吧，感谢 vArDo，不再有崩溃。但是选择器实际上并没有做任何事情。这是列表项布局的 xml，对于那些可能会看到如何真正开始工作的人来说:

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:id="@+id/itemLayout"
    android:layout_width="match_parent"
    android:layout_height="match_parent" >

    <TextView
        android:id="@+id/NameView"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentLeft="true"
        android:layout_alignParentTop="true"
        android:text="Name"
        android:textAppearance="?android:attr/textAppearanceLarge"
        tools:ignore="HardcodedText" />

    <TextView
        android:id="@+id/balanceView"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentLeft="true"
        android:layout_below="@+id/NameView"
        android:text="Balance"
        android:textAppearance="?android:attr/textAppearanceSmall"
        tools:ignore="HardcodedText" />

    <ImageView
        android:id="@+id/favStar"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentRight="true"
        android:layout_alignParentTop="true"
        android:layout_marginRight="10dp"
        android:layout_marginTop="10dp"
        android:contentDescription="@string/accessFav"
        android:src="@android:drawable/btn_star_big_on"
        android:visibility="gone" />

</RelativeLayout>

最佳答案

在 ListView 中，android:listSelector 需要是一个 drawable ( see documentation )，所以每个 item XML selector 文件中的标签需要包含 android:drawable。只需将 android:color 更改为 android:drawable(您可以使用相同的值)，您当前的错误就会消失。

替换后的文件应如下所示:

<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
    <item android:drawable="@android:color/holo_blue_dark"
        android:state_pressed="true" />
    <item android:drawable="@android:color/holo_blue_light"
        android:state_checked="true" />
    <item android:drawable="@android:color/holo_blue_bright"
        android:state_selected="true" />
</selector>

关于android - 无法将自定义选择器添加到 ListView，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/15815328/

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