Android studio preview not showing

Question

Why is Android Studio preview is not showing?

Answer 1

Your xml file does not have issue.It is not showing preview because it is not compiled properly

You have Gradle Sync issue.

Pleas fix that first.

How to?

1. Clean project -> Rebuild Project or
2. Open app/module's build.gradle, check any error do you have. etc.

Answer 2

okay here's very lightweight solution with steps:

• Ctrl+Alt+Shift+S or File->Project Structure

• Select Project from left panel

• Now check your Gradle Version at right panel

• In my case my Gradle Version is 3.3

• Navigate C:\Users\Malith.gradle\caches and delete your Gradle Version - 3.3 named folder.

• Now restart or open your project again from workspace.

Greetings...your problem is solved.