如何在 Android Studio 2.2 上刷新预览？

Question

Now on Android Studio 2.2 on new Preview mode, there are no more refresh button :

• Image 1: Preview on Android Studio 2.2 (without refresh button)
• Image 2: Preview on Android Studio 2.1 (with refresh button)

Does anyone know how to display it again? Or with shortcut maybe?

Edit: If I change a drawable by example and that the change does not appear in the layout, the only method that works for me is closed and restart the project. If I close the layout and as I re-opens nothing happens. Same result using the "Synchronized" button.

Answer 1

Refresh feature is not removed, it is there; It's pretty simple to refresh:

Click on the preview screen to make sure preview window has the focus and press R . It should display the progress in the right-top corner while refreshing.

If it doesn't work for any reason, switch to design tab and press R , it refreshes the layout instantly.

Answer 2

I think it is a small bug. But I find a hack solution to resolve the problem, you can modify the a resource id to a wrong name, for example, you have a resource named 'ic_launcher', when you input 'ic_launcher1', you can find the interface like that:

next step, click refresh icon(sometimes it is 'clear cache' label). it is works for me.

I have try to change the orientation, but it not works when I replace a exist image file.

May your problem is same as : http://stackoverflow.com/questions/39646639/android-studio-2-2-layout-editor-refresh-button

Answer 3

Display again?

I guess you cant. Apparently the refresh functionality has been removed because they think the processing will happen much faster and will auto-refresh the previews real time. The Layout Editor's document has no mention of refresh functionality.

Shortcut?

If you are faster in making changes to your layout than Android-studio refreshes, you could try toggling between the design and blueprint views using the shortcut B

Refer the Layout Editor Official Documentation for other shortcuts you might feel comfortable with or works for you.

Answer 4

There is no refresh button in stable version of android studio 2.2 for preview. But there is a work around to do so. By toggling the orientation button in an editor will refreshes the changes!

Answer 5

So do the Simple Step. When you change your layout then save it and clean your project. go to menu Build -> Clean Project.

I Hope this will help you.

Answer 6

我也有同样的问题，有时更改 Android 版本会起作用，如果您清理/重建项目，它肯定会起作用

Answer 7

Find the double diagonal lines below your preview layout and click them. It will refresh your layout.