Android（API级别28），无效Region.Op-仅允许INTERSECT和DIFFERENCE

Question

我正在尝试在Android Studio的设计模式下添加ToggleButton。

我的目标是API级别28 targetSdkVersion 28

我的ToggleButton没有显示，我看到了该错误： java.lang.IllegalArgumentException: Invalid Region.Op - only INTERSECT and DIFFERENCE are allowed

这是ToggleButton的xml

 <ToggleButton
            android:text="ToggleButton"
            android:layout_width="100dp"
            android:layout_height="100dp" tools:layout_editor_absoluteY="369dp"
            tools:layout_editor_absoluteX="133dp" android:id="@+id/toggleButton5" android:textOff="OFF"
            android:textOn="ON" android:textColor="@color/colorAccent" style="@style/AlertDialog.AppCompat"
            tools:text="Hello" android:typeface="normal" android:textStyle="bold" android:textAlignment="center"
    />

显然clipRect (RectF rect, Region.Op op)在API 26中已被弃用，但是我不确定需要更改哪些内容？

这是完整的堆栈跟踪：

java.lang.IllegalArgumentException: Invalid Region.Op - only INTERSECT and DIFFERENCE are allowed
    at android.graphics.Canvas.checkValidClipOp(Canvas.java:779)
    at android.graphics.Canvas.clipRect(Canvas.java:826)
    at android.view.ViewGroup_Delegate.drawShadow(ViewGroup_Delegate.java:86)
    at android.view.ViewGroup_Delegate.drawChild(ViewGroup_Delegate.java:58)
    at android.view.ViewGroup.drawChild(ViewGroup.java:4333)
    at android.view.ViewGroup.dispatchDraw(ViewGroup.java:4112)
    at android.support.constraint.ConstraintLayout.dispatchDraw(ConstraintLayout.java:2023)
    at android.view.View.draw_Original(View.java:20075)
    at android.view.View_Delegate.draw(View_Delegate.java:68)
    at android.view.View.draw(View.java:19849)
    at android.view.ViewGroup.drawChild_Original(ViewGroup.java:4333)
    at android.view.ViewGroup_Delegate.drawChild(ViewGroup_Delegate.java:63)
    at android.view.ViewGroup.drawChild(ViewGroup.java:4333)
    at android.view.ViewGroup.dispatchDraw(ViewGroup.java:4112)
    at android.view.View.draw_Original(View.java:20075)
    at android.view.View_Delegate.draw(View_Delegate.java:68)
    at android.view.View.draw(View.java:19849)
    at android.view.ViewGroup.drawChild_Original(ViewGroup.java:4333)
    at android.view.ViewGroup_Delegate.drawChild(ViewGroup_Delegate.java:63)
    at android.view.ViewGroup.drawChild(ViewGroup.java:4333)
    at android.view.ViewGroup.dispatchDraw(ViewGroup.java:4112)
    at android.view.View.draw_Original(View.java:20210)
    at android.view.View_Delegate.draw(View_Delegate.java:56)
    at android.view.View.draw(View.java:20177)
    at com.android.layoutlib.bridge.impl.RenderSessionImpl.renderAndBuildResult(RenderSessionImpl.java:405)
    at com.android.layoutlib.bridge.impl.RenderSessionImpl.renderAndBuildResult(RenderSessionImpl.java:552)
    at com.android.layoutlib.bridge.impl.RenderSessionImpl.render(RenderSessionImpl.java:426)
    at com.android.layoutlib.bridge.BridgeRenderSession.render(BridgeRenderSession.java:108)
    at com.android.ide.common.rendering.api.RenderSession.render(RenderSession.java:154)
    at com.android.ide.common.rendering.api.RenderSession.render(RenderSession.java:136)
    at com.android.tools.idea.rendering.RenderTask.lambda$renderInner$5(RenderTask.java:671)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at java.util.concurrent.Executors$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)