我已将NavigationDrawerActivity添加到我的项目中，但在设计器中看不到大多数已创建的自动布局。
我实际上使用的是 Android Studio版本3.3.1 。已移至 androidx 库。
Compilibale SDK版本与设计器中的版本相同。
试图更改AndroidManifest.xml中的android:theme="@style/AppTheme">。还尝试更改styles.xml中的<style name="AppTheme" parent="Theme.AppCompat.Light.DarkActionBar">。没事。
如果我通过错误列表链接View.java打开，其中出现很多“无法解析符号...”错误。
这是我在Designer中收到的错误消息：
java.lang.IllegalArgumentException: java.lang.ClassCastException@61596986
at sun.reflect.GeneratedMethodAccessor667.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.StateListAnimator.start(StateListAnimator.java:188)
at android.animation.StateListAnimator.setState(StateListAnimator.java:181)
at android.view.View.drawableStateChanged(View.java:21105)
at android.view.ViewGroup.drawableStateChanged(ViewGroup.java:7101)
at com.google.android.material.appbar.AppBarLayout.drawableStateChanged(AppBarLayout.java:393)
at android.view.View.refreshDrawableState(View.java:21160)
at android.view.View.dispatchAttachedToWindow(View.java:18379)
at android.view.ViewGroup.dispatchAttachedToWindow(ViewGroup.java:3397)
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:334)
at com.android.layoutlib.bridge.Bridge.createSession(Bridge.java:385)
at com.android.tools.idea.layoutlib.LayoutLibrary.createSession(LayoutLibrary.java:193)
at com.android.tools.idea.rendering.RenderTask.createRenderSession(RenderTask.java:509)
at com.android.tools.idea.rendering.RenderTask.lambda$inflate$4(RenderTask.java:638)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
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)
如何解决？