问题
My Android studio not renders EditText, I even created new project to verify it, the EditText is just blank.
I am using Android studio 4.0 and Gradle 4.0.
回答1:
In the designer window, at the top right corner, there is a symbol (Exclamation mark in a circle). if it's red, there might be some issue with the layout. You may have to enable the latest Layout Rendering Engine.
Android Studio 4.0 includes a new Layout Rendering Engine. Enable it and check if the issue still persists. if it's already enabled, you will get a the below message:
Rendering errors might be caused by the new Layout Rendering Engine. Disabling it by clicking here may fix the issue. It can later be enabled again using the Settings > Experimental dialog.
回答2:
Had the same problem, if not not similar...
I went to Project Structure and changed my dependency from com.google.android.material:material:1.2.0-alpha04 to com.google.android.material:material:1.2.0-alpha03
or you can go and change it in gradle.
来源：https://stackoverflow.com/questions/62244247/edittext-not-renders-in-layout-editor