auto layout issue in landscape view custom keyboard

Question

i have create keyboard.xib for custom keyboard it working fine in portrait mode in all devices but i am unable to set constraint for landscape mode.

self.keyboard=[[[NSBundle mainBundle] loadNibNamed:@"Keyboard" owner:nil options:nil] objectAtIndex:0];
[self addGesturesToKeyboard];
self.inputView=self.keyboard;

someone tell me why this is happening, or what constraint i am missing.

Answer 1

Use size-classes to build UI (in single xib)

https://developer.apple.com/library/ios/recipes/xcode_help-IB_adaptive_sizes/chapters/AboutAdaptiveSizeDesign.html