Configuring Android emulator with a large aspect ratio

Question

An announcement was announced in March 2017.

How to configure the Android emulator to display one of the new, longer 18: 9 screens? Manually setting the emulator screen resolution does not show the effect with the mailbox.

Answer 1

This is not an answer as such, but I found useful information in the docs.

First read this note about android.max_aspect from the original announcement :

Note: if you do not set the value and android:resizeableActivity does not match true , then the default maximum aspect ratio is 1.86 (approximately 16: 9), and your application will not use an additional screen.

Now see these docs :

You do not need to set the maximum aspect ratio if the android:resizeableActivity set to true. If your application targets API level 24 or higher, this attribute defaults to true.

This means that the letter-box problem will only occur if both of these conditions are true:

• The device has a large aspect ratio (> 1.86: 1 or 16: 9) and
• Application is for API 23 or lower

So, I suspect that the situation is not so bad - not many applications will be affected.

Answer 2

Try the following:

• In Android Studio, open AVD Manager
• Create a virtual device
  • New equipment profile
  • Set Name: "18: 9 Aspect Ratio Screen"
  • Set resolution: 1080 x 2160
  • Done
• Select "18: 9 Aspect Ratio Screen"
• Further
• Select Nougat System Image (API Level 25)
• Further
• AVD Name: "25 N.1 18x9 aspect ratio screen" [launching AVD names with API level gets a list sorted by this value]
• Done