问题
android Button background failure
when I try to add
android:background=\"@drawable/roundedbutton\"
into the .xml
<Button
android:id=\"@+id/button_stop\"
style=\"@android:style/Widget.Button\"
android:layout_width=\"match_parent\"
android:layout_height=\"wrap_content\"
android:layout_margin=\"3dp\"
android:background=\"@drawable/roundedbutton\"
android:layout_weight=\"1\"
android:text=\"stop\"
android:textSize=\"18sp\" />
the roundedbutton.xml
<?xml version=\"1.0\" encoding=\"utf-8\"?>
<shape xmlns:android=\"http://schemas.android.com/apk/res/android\"
android:shape=\"rectangle\">
<solid android:color=\"@color/colorPrimary\" />
<corners android:bottomRightRadius=\"8dp\"
android:bottomLeftRadius=\"8dp\"
android:topRightRadius=\"8dp\"
android:topLeftRadius=\"8dp\"/>
</shape>
the button became blank and Android Studio 3.2.1 gives an error
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.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: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)
Thank you.
回答1:
UPDATE
The fix for this will be included in Android Studio 3.5 Canary 2
java.lang.IllegalArgumentException: Invalid Region.Op - only INTERSECT and DIFFERENCE
The issue with targetSdkVersion 28
Looks like this started being enforced in P: https://developer.android.com/reference/android/graphics/Canvas#clipRect(android.graphics.RectF,%20android.graphics.Region.Op)
also reported here
- https://issuetracker.google.com/issues/121235731
- https://github.com/facebook/stetho/issues/607
- https://github.com/ArthurHub/Android-Image-Cropper/issues/553
- https://github.com/ArthurHub/Android-Image-Cropper/pull/588
Temporary solution for your case
Use
<corners
android:radius="8dp"/>
instead of
<corners android:bottomRightRadius="8dp"
android:bottomLeftRadius="8dp"
android:topRightRadius="8dp"
android:topLeftRadius="8dp"/>
回答2:
Same issue occur in my end, it was fixed now
Change the targetSdkVersion 28 to 27 in build.gradle. Thanks
回答3:
This is what fixed it for me:
.setCropShape(Build.VERSION.SDK_INT >= Build.VERSION_CODES.P ? CropImageView.CropShape.RECTANGLE : CropImageView.CropShape.OVAL)
回答4:
For those of you who still haven't figured out how to solve this, just Try to read the error and understand where it stems from.
Read all the call stack, don't be afraid, line by line, and find the library which use the function clipRect().
Its probably an old library which you need to updated (in my scenario, it was Lottie, which didn't report in the build.gradle that I haven't had the most recent library).
回答5:
Try this
<shape xmlns:android="http://schemas.android.com/apk/res/android">
<stroke android:width="2dp" android:color="@color/black" />
<solid android:color="@color/black" />
<corners android:radius="7dp" />
</shape>
回答6:
try removing " style="@android:style/Widget.Button"".
<Button
android:id="@+id/button_stop"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_margin="3dp"
android:background="@drawable/roundedbutton"
android:layout_weight="1"
android:text="stop"
android:textSize="18sp" />
回答7:
For me it got fixed up when I changed
<corners android:bottomRightRadius="8dp"
android:bottomLeftRadius="8dp"
android:topRightRadius="8dp"
android:topLeftRadius="8dp"/>
to
<corners
android:radius="8dp"/>
in my buttondesign.xml file and replaced
<Button
android:id="@+id/btn_verify"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="@drawable/yellow_btn_bg"
android:text="Verify"
android:textSize="16sp"
android:layout_margin="20dp"
android:layout_marginLeft="20dp"
android:layout_marginRight="20dp"
android:layout_marginTop="20dp"
android:layout_marginBottom="20dp"
android:layout_weight="1"
android:textColor="@color/white"
/>
with
<Button
android:id="@+id/btn_verify"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="@drawable/yellow_btn_bg"
android:text="Verify"
android:textSize="16sp"
android:layout_margin="20dp"
android:layout_weight="1"
android:textColor="@color/white"
/>
回答8:
if you encounter this problem in an activity while you do not detect the report with the solutions proposed here, it is that you use an instatble library which generates this error .. try to change the version of this library, and your problem will be solved
来源：https://stackoverflow.com/questions/52922866/java-lang-illegalargumentexception-invalid-region-op-only-intersect-and-diffe