Itqualityassurance
- Does iOS use pixels?
- What is the difference between points and pixels on an iPhone?
- What is DP in iOS?
- What are the options for laying out UI on iOS?
Does iOS use pixels?
A pixel on iOS is the full resolution of the device, which means if I have an image that is 100x100 pixels in length, then the phone will render it 100x100 pixels on a standard non-retina device.
What is the difference between points and pixels on an iPhone?
Converting between pixels and points
Points are different to pixels because they change size based on DPI: On the iPhone, 1 point is equal to 1 pixel when the resolution is 163DPI. This was the case for all the iPhones before the Retina era.
What is DP in iOS?
A dp is equal to one physical pixel on a screen with a density of 160. To calculate dp: dp = (width in pixels *... A dp is equal to one physical pixel on a screen with a density of 160.
What are the options for laying out UI on iOS?
With the UIKit framework, there are two options available for creating the UI for iOS apps: Storyboard and programmatically. Both methods offer several advantages.
