Android Studio在使用DataBinding时无法生成Binding类 [英] Android Studio can not generate Binding class while use DataBinding
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问题描述
- Android Studio:3.1.0、3.1.1
- 等级:4.4
- 构建工具:3.1.0
我正在使用DataBinding库.当我向项目中添加布局文件或向布局文件中添加任何视图时，Android Studio在重新生成项目之前无法为布局生成Binding类.
I am using the DataBinding library. when I add a layout file to project or add any view into the layout file, Android Studio cannot generate a Binding class for the layout, until rebuilding the project.
布局文件:
<?xml version="1.0" encoding="utf-8"?>
<layout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
tools:context=".MainActivity">
<data>
<variable
name="viewModel"
type="com.qk365.thweeks.MainViewModel" />
</data>
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="match_parent">
<android.support.design.widget.TabLayout
android:id="@+id/main_tab"
android:layout_width="match_parent"
android:layout_height="50dp"
android:layout_alignParentBottom="true"
android:background="@android:color/white"
android:elevation="5dp"
app:tabGravity="fill"
app:tabIndicatorHeight="0dp"
app:tabMode="fixed"
app:tabSelectedTextColor="#7343ea"
app:tabTextAppearance="@style/TextAppearance.Design.Tab"
app:tabTextColor="#181818" />
<android.support.v4.view.ViewPager
android:id="@+id/main_viewpager"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_above="@id/main_tab">
</android.support.v4.view.ViewPager>
</RelativeLayout>
</layout>
我检查了Android Studio日志，当布局文件更改时，总是出现错误消息.
I checked Android Studio logs, when layout file changes, there always have error message.
2018-04-17 11:20:01,699 [e-1024-b02] ERROR - .intellij.psi.impl.ElementBase - Element: class com.intellij.psi.impl.source.xml.XmlFileImpl because: different providers: SingleRootFileViewProvider{myVirtualFile=file://E:/AndroidStudioProjects/thweeks/module-order/src/main/res/layout/order_fragment_pick_up_order.xml, content=VirtualFileContent{size=2845}}(5200996b); SingleRootFileViewProvider{myVirtualFile=file://E:/AndroidStudioProjects/thweeks/module-order/src/main/res/layout/order_fragment_pick_up_order.xml, content=VirtualFileContent{size=2845}}(398a3993)
invalidated at: see attachment
com.intellij.psi.PsiInvalidElementAccessException: Element: class com.intellij.psi.impl.source.xml.XmlFileImpl because: different providers: SingleRootFileViewProvider{myVirtualFile=file://E:/AndroidStudioProjects/thweeks/module-order/src/main/res/layout/order_fragment_pick_up_order.xml, content=VirtualFileContent{size=2845}}(5200996b); SingleRootFileViewProvider{myVirtualFile=file://E:/AndroidStudioProjects/thweeks/module-order/src/main/res/layout/order_fragment_pick_up_order.xml, content=VirtualFileContent{size=2845}}(398a3993)
invalidated at: see attachment
at com.intellij.psi.util.PsiUtilCore.ensureValid(PsiUtilCore.java:502)
at com.intellij.psi.impl.smartPointers.SmartPointerManagerImpl.createSmartPsiElementPointer(SmartPointerManagerImpl.java:78)
at com.intellij.psi.impl.smartPointers.SmartPointerManagerImpl.createSmartPsiElementPointer(SmartPointerManagerImpl.java:69)
at com.intellij.psi.impl.smartPointers.SmartPointerManagerImpl.createSmartPsiElementPointer(SmartPointerManagerImpl.java:64)
at com.intellij.psi.impl.ElementBase$ElementIconRequest.<init>(ElementBase.java:183)
at com.intellij.psi.impl.ElementBase$ElementIconRequest.<init>(ElementBase.java:178)
at com.intellij.psi.impl.ElementBase.computeIcon(ElementBase.java:110)
at com.intellij.psi.impl.ElementBase.getIcon(ElementBase.java:86)
at com.intellij.codeInsight.lookup.DefaultLookupItemRenderer._getRawIcon(DefaultLookupItemRenderer.java:79)
at com.intellij.codeInsight.lookup.DefaultLookupItemRenderer.getRawIcon(DefaultLookupItemRenderer.java:48)
at com.intellij.codeInsight.completion.JavaMethodCallElement.renderElement(JavaMethodCallElement.java:444)
at com.intellij.codeInsight.completion.JavaCompletionUtil$4.renderElement(JavaCompletionUtil.java:468)
at com.intellij.codeInsight.completion.JavaCompletionUtil$4.renderElement(JavaCompletionUtil.java:465)
at com.intellij.codeInsight.lookup.LookupElementDecorator$VisagisteDecorator.renderElement(LookupElementDecorator.java:179)
at com.intellij.codeInsight.lookup.LookupElementDecorator.renderElement(LookupElementDecorator.java:83)
at com.intellij.codeInsight.lookup.impl.LookupCellRenderer.getListCellRendererComponent(LookupCellRenderer.java:150)
at com.intellij.ui.ExpandedItemListCellRendererWrapper.getListCellRendererComponent(ExpandedItemListCellRendererWrapper.java:38)
at javax.swing.plaf.basic.BasicListUI.paintCell(BasicListUI.java:209)
at com.intellij.ui.components.WideSelectionListUI.paintCell(WideSelectionListUI.java:56)
at javax.swing.plaf.basic.BasicListUI.paintImpl(BasicListUI.java:317)
at javax.swing.plaf.basic.BasicListUI.paint(BasicListUI.java:240)
at com.intellij.ui.components.WideSelectionListUI.paint(WideSelectionListUI.java:32)
at javax.swing.plaf.ComponentUI.update(ComponentUI.java:161)
at javax.swing.JComponent.paintComponent(JComponent.java:780)
at com.intellij.ui.components.JBList.paintComponent(JBList.java:186)
at javax.swing.JComponent.paint(JComponent.java:1056)
at com.intellij.ui.components.JBList.paint(JBList.java:118)
at javax.swing.JComponent.paintChildren(JComponent.java:889)
at javax.swing.JComponent.paint(JComponent.java:1065)
at javax.swing.JViewport.paint(JViewport.java:728)
at com.intellij.ui.components.JBViewport.paint(JBViewport.java:236)
at javax.swing.JComponent.paintChildren(JComponent.java:889)
at javax.swing.JComponent.paint(JComponent.java:1065)
at javax.swing.JComponent.paintChildren(JComponent.java:889)
at javax.swing.JComponent.paint(JComponent.java:1065)
at javax.swing.JComponent.paintChildren(JComponent.java:889)
at javax.swing.JComponent.paint(JComponent.java:1065)
at javax.swing.JLayeredPane.paint(JLayeredPane.java:586)
at javax.swing.JComponent.paintToOffscreen(JComponent.java:5210)
at javax.swing.RepaintManager$PaintManager.paintDoubleBuffered(RepaintManager.java:1579)
at javax.swing.RepaintManager$PaintManager.paint(RepaintManager.java:1502)
at javax.swing.BufferStrategyPaintManager.paint(BufferStrategyPaintManager.java:306)
at javax.swing.RepaintManager.paint(RepaintManager.java:1272)
at javax.swing.JComponent._paintImmediately(JComponent.java:5158)
at javax.swing.JComponent.paintImmediately(JComponent.java:4969)
at javax.swing.RepaintManager$4.run(RepaintManager.java:831)
at javax.swing.RepaintManager$4.run(RepaintManager.java:814)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:80)
at javax.swing.RepaintManager.paintDirtyRegions(RepaintManager.java:814)
at javax.swing.RepaintManager.paintDirtyRegions(RepaintManager.java:789)
at javax.swing.RepaintManager.prePaintDirtyRegions(RepaintManager.java:738)
at javax.swing.RepaintManager.access$1200(RepaintManager.java:64)
at javax.swing.RepaintManager$ProcessingRunnable.run(RepaintManager.java:1732)
at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:311)
at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:762)
at java.awt.EventQueue.access$500(EventQueue.java:98)
at java.awt.EventQueue$3.run(EventQueue.java:715)
at java.awt.EventQueue$3.run(EventQueue.java:709)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:80)
at java.awt.EventQueue.dispatchEvent(EventQueue.java:732)
at com.intellij.ide.IdeEventQueue.defaultDispatchEvent(IdeEventQueue.java:822)
at com.intellij.ide.IdeEventQueue._dispatchEvent(IdeEventQueue.java:650)
at com.intellij.ide.IdeEventQueue.dispatchEvent(IdeEventQueue.java:366)
at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:201)
at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:116)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:105)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:101)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:93)
at java.awt.EventDispatchThread.run(EventDispatchThread.java:82)
2018-04-17 11:20:01,699 [e-1024-b02] ERROR - .intellij.psi.impl.ElementBase - Android Studio 3.1.1 Build #AI-173.4697961
2018-04-17 11:20:01,699 [e-1024-b02] ERROR - .intellij.psi.impl.ElementBase - JDK: 1.8.0_152-release
2018-04-17 11:20:01,699 [e-1024-b02] ERROR - .intellij.psi.impl.ElementBase - VM: OpenJDK 64-Bit Server VM
2018-04-17 11:20:01,699 [e-1024-b02] ERROR - .intellij.psi.impl.ElementBase - Vendor: JetBrains s.r.o
2018-04-17 11:20:01,699 [e-1024-b02] ERROR - .intellij.psi.impl.ElementBase - OS: Windows 10
2018-04-17 11:20:01,699 [e-1024-b02] ERROR - .intellij.psi.impl.ElementBase - Last Action: EditorChooseLookupItem
推荐答案
我遇到了同样的问题.不管我尝试了什么，它都无法生成绑定类.诀窍是您必须重命名布局xml文件.假设您有一个XML文件 my_layout.xml ，然后将其重命名为 my_layout_temp.xml .现在将以名称 MyLayoutTempBinding 生成绑定类.如果您不喜欢该名称，则可以将其重命名为 my_layout.xml .最后它将解决绑定类生成的问题.
I had the same problem. No matter what I tried it was not able to generate binding class. The trick was that you have to rename your layout xml file. Say you have a xml file my_layout.xml then rename it to my_layout_temp.xml. Now the binding class will be generated with name MyLayoutTempBinding. If you don't like the name then you can rename it back to my_layout.xml. At the end it will solve the binding class generate issue.
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