android-studio Getting started with android-studio Preview Different Screen Size (Devices) and Orientations
Example
2.1.3
1. Preview Different Devices
There is a preview panel at the right of the android studio. In thispanel there is a button with device name with which you are previewing the UI of your app like this .
Click on small dropdown indicator of this and a floating panel will appear with all the predefined devices. You can select any of them to preview your App UI with different devices mentioning their screen sizes.
Check this image
2. Switching Orientation
And Next to this button there is another button like
Clicking to its dropdown a floating panel will appear with some options like portrait , landscape etc. select one of them to preview in different orientations.
Check the this image
2.2.0
The option to preview all screen sizes is not available from Android Studio 2.2 Beta 2. However, you can resize the preview screen to see how your layout would look on different screen sizes, as shown in the attached.
