在其他iOS设备上调整应用大小？

Question

Iv'e made an app for for iPhone 5, now i want to make it available for another iOS devices, but i don't know how to resize the label in different sizes.

I've got a label that change his point by the iPhone 5 size:

    if (a == true) {
self.minutes.frame = CGRectMake(271, 109, 140,100)
}

I used to play with the auto layouts but the label always "jumps" to here:

CGRectMake(271, 109, 140,100)

and back to his first place.

How can i fix it. Thank you

Answer 1

You can test for the different iphone sizes

if(  UIScreen.mainScreen().bounds.size.width == 568)

{self.minutes.frame = CGRectMake(271, 109, 140,100)}

else if(UIScreen.mainScreen().bounds.size.width == 667 )

{ change to the size that looks best in iphone 6 }

else if(UIScreen.mainScreen().bounds.size.width == 736 )

{ change to the size that looks best on iphone 6 plus }

else

{ change to the size that you want for the smaller devices }

Answer 2

You should definitely be using AutoLayout for this, if you tried you need to make sure you edit the constraints to change the position or size of views instead of setting the frame . Here is a good tutorial that introduces AutoLayout: http://www.appcoda.com/introduction-auto-layout/

Also, UILabel has an intrinsic content size (the size depends on the text and font), therefore you shouldn't be changing it's size manually.