android studio preview not showing hello world

Apparently lots of other people encounter same problem.

And everytime I open a new project I encountered this problem. 3 years, 10 months ago You're a genius! How did you even know that I'm using ? 3 years, 10 months ago Hello world app is initialized with. Kind of surprised why this is not there by default though. I suspect some of Android Studio's tutorials are not updated to reflect change in theme's class hierarchy. It would be nice to have an additional explanation why it's happening. 4 years, 1 month ago If you want to use app theme then view the answer of Natesh bhat below 4 years, 1 month ago It worked for me. Alternatively, if you are working with implementation ':appcompat-v7:27.1.1 you can change the last number sync gradle and then change it back. Do you know the reason of this problem? 4 years, 2 months ago There is an issue with the app compact as you said. 4 years, 3 months ago What is I want to use App Theme ? 4 years, 2 months ago This solved my issue also. But then I found that the Theme icon on my tool bar is two concentric circles, with the inner one divided vertically in half with one side white and the other black. Thanks! 4 years, 3 months ago I was frustrated because there was no blue star. 4 years, 3 months ago As I didn't restart Android Studio for a couple of weeks. 4 years, 4 months ago Invalidate caches worked for me when I had an empty Preview tab with no device config buttons.

One other thing I can think of is did you start a 'Blank' Activity or 'Empty' Activity? If you did Blank, can you try to make a new project for testing using Empty and set Theme to Holo.Light as mentioned earlier. Ok, update your Android Studio to latest version 6 years, 9 months ago Can you try to change the App theme to for example 6 years, 9 months ago That usually works for me.

2 years, 3 months ago Related Topics android android-studio android-layout Comments 6 years, 9 months ago add screenshot link to this problem, it may have many reasons -) 6 years, 9 months ago updated 6 years, 9 months ago wow, I haven't expected that.

Android studio preview not showing hello world