古之立大事者,不惟有超世之才,亦必有坚忍不拔之志。这篇文章主要讲述在Android Studio中渲染导航抽屉预览中的问题相关的知识,希望能为你提供帮助。
【在Android Studio中渲染导航抽屉预览中的问题】我在android Studio 3.4中预览生成的导航抽屉布局时遇到问题。
我已经尝试更改布局主题或更改预览的API版本,但这些似乎都没有帮助。 Render问题的错误跟踪如下所示:
java.lang.IllegalArgumentException: java.lang.ClassCastException@26b35b5d
at sun.reflect.GeneratedMethodAccessor306.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at android.animation.PropertyValuesHolder_Delegate.callMethod(PropertyValuesHolder_Delegate.java:108)
at android.animation.PropertyValuesHolder_Delegate.nCallFloatMethod(PropertyValuesHolder_Delegate.java:143)
at android.animation.PropertyValuesHolder.nCallFloatMethod(PropertyValuesHolder.java)
at android.animation.PropertyValuesHolder.access$400(PropertyValuesHolder.java:38)
at android.animation.PropertyValuesHolder$FloatPropertyValuesHolder.setAnimatedValue(PropertyValuesHolder.java:1387)
at android.animation.ObjectAnimator.animateValue(ObjectAnimator.java:990)
at android.animation.ValueAnimator.setCurrentFraction(ValueAnimator.java:674)
at android.animation.ValueAnimator.setCurrentPlayTime(ValueAnimator.java:637)
at android.animation.ValueAnimator.start(ValueAnimator.java:1069)
at android.animation.ValueAnimator.start(ValueAnimator.java:1088)
at android.animation.ObjectAnimator.start(ObjectAnimator.java:852)
at android.animation.ValueAnimator.startWithoutPulsing(ValueAnimator.java:1081)
at android.animation.AnimatorSet.handleAnimationEvents(AnimatorSet.java:1142)
at android.animation.AnimatorSet.startAnimation(AnimatorSet.java:1227)
at android.animation.AnimatorSet.start(AnimatorSet.java:729)
at android.animation.AnimatorSet.start(AnimatorSet.java:684)
at android.animation.StateListAnimator.start(StateListAnimator.java:188)
at android.animation.StateListAnimator.setState(StateListAnimator.java:181)
at android.view.View.drawableStateChanged(View.java:21105)
at android.widget.ImageView.drawableStateChanged(ImageView.java:1294)
at com.google.android.material.floatingactionbutton.FloatingActionButton.drawableStateChanged(FloatingActionButton.java:804)
at android.view.View.refreshDrawableState(View.java:21160)
at android.view.View.dispatchAttachedToWindow(View.java:18379)
at android.view.ViewGroup.dispatchAttachedToWindow(ViewGroup.java:3404)
at android.view.ViewGroup.dispatchAttachedToWindow(ViewGroup.java:3404)
at android.view.ViewGroup.dispatchAttachedToWindow(ViewGroup.java:3404)
at android.view.ViewGroup.dispatchAttachedToWindow(ViewGroup.java:3404)
at android.view.AttachInfo_Accessor.setAttachInfo(AttachInfo_Accessor.java:42)
at com.android.layoutlib.bridge.impl.RenderSessionImpl.inflate(RenderSessionImpl.java:335)
at com.android.layoutlib.bridge.Bridge.createSession(Bridge.java:391)
at com.android.tools.idea.layoutlib.LayoutLibrary.createSession(LayoutLibrary.java:195)
at com.android.tools.idea.rendering.RenderTask.createRenderSession(RenderTask.java:540)
at com.android.tools.idea.rendering.RenderTask.lambda$inflate$5(RenderTask.java:666)
at java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1590)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:745)
编辑当我重建项目或无效现金并重新启动时,预览似乎工作,当我关闭它并重新打开时,芽,再次出现渲染错误。
activity_main.xml中:
<
androidx.drawerlayout.widget.DrawerLayout 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"
android:id="@+id/drawer_layout"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fitsSystemWindows="true"
tools:openDrawer="start">
<
include
layout="@layout/app_bar_main"
android:layout_width="match_parent"
android:layout_height="match_parent" />
<
com.google.android.material.navigation.NavigationView
android:id="@+id/nav_view"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:layout_gravity="start"
android:fitsSystemWindows="true"
app:headerLayout="@layout/nav_header_main"
app:menu="@menu/activity_main_drawer" />
<
/androidx.drawerlayout.widget.DrawerLayout>
app_bar_main.xml
<
androidx.coordinatorlayout.widget.CoordinatorLayout 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"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".MainActivity">
<
com.google.android.material.appbar.AppBarLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:theme="@style/AppTheme.AppBarOverlay">
<
androidx.appcompat.widget.Toolbar
android:id="@+id/toolbar"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
android:background="?attr/colorPrimary"
app:popupTheme="@style/AppTheme.PopupOverlay" />
<
/com.google.android.material.appbar.AppBarLayout>
<
include layout="@layout/content_main" />
<
com.google.android.material.floatingactionbutton.FloatingActionButton
android:id="@+id/fab"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="bottom|end"
android:layout_margin="@dimen/fab_margin"
app:srcCompat="@android:drawable/ic_dialog_email" />
<
/androidx.coordinatorlayout.widget.CoordinatorLayout>
content_main.xml
<
LinearLayout 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"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
app:layout_behavior="@string/appbar_scrolling_view_behavior"
tools:context=".MainActivity"
tools:showIn="@layout/app_bar_main">
<
TextView
android:id="@+id/user_ID"
android:layout_width="match_parent"
android:layout_height="wrap_content" />
<
/LinearLayout>
答案我给出了这个问题的答案,所以任何有同样问题的人都可以在将来与此相关。正如Mbuodile Obiosio在评论中提到的,解决此问题的解决方案或解决方法是从布局中删除FloatingActionButton。
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