android-layout-editor

I'm experiencing a strange behavior of the layout preview in Android Studio. I've developed a custom view extending an AppCompatButton and the layout is the expected one at runtime, however, the layout in the layout preview is not displaying correctly. In particular, the button is displayed but without the background color set from the custom attribute and without the drawableStart (set in the custom view init according to a custom attribute named "social"). See the code below for additional details. Please be aware that the custom view is inside a library that is imported in the main project

I'm using Eclipse and I just created a home page (menu) with 2 image buttons, but I am getting this error: The graphics preview in the layout editor may not be accurate: Paint.setShadowLayer is not supported. What does it mean? And how can I solve it? I am using API 21. It means the preview doesn't know how to implement setShadowLayer. This means the preview won't look exactly like the result rendered on the device. Which is one of many reasons why you shouldn't trust the preview app- always test your layouts on a physical device before assuming they're done. In my case it was a new component,

The Android Studio 3.1 layout preview fails to find style 'coordinatorLayoutStyle' in the current theme. Failed to instantiated one or more classes. Exception shown are :- java.lang.ClassNotFoundException: android.view.View$OnUnhandledKeyEventListener Ashish Kumar This happened due to use of alpha version SDK 28 We need to change the android { ... } in "build.gradle" in app file compileSdkVersion 28 to compileSdkVersion 27 targetSdkVersion 28 to targetSdkVersion 27 Also, try to change implementations like implementation 'com.android.support:appcompat-v7:28.0.0-alpha3' to implementation 'com