Here's how Android apps will work on rollable phones, including LG's - Android

Android apps automatically adjust to rollable displays
A new update to the Android emulator inside Google’s Android Studio has added support for a 7.4-inch rollable smartphone. When rolled out, the screen boasts a 2428 x 1600p resolution, but if you’re looking for a smaller size, the device also gives you the option of using it as a traditional smartphone. In that case, the resolution ...