我想使用Swift代码在我的应用程序中正确定位项目,无论屏幕大小是什么。例如,如果我想要一个按钮的宽度是屏幕宽度的75%,我可以这样做(screenWidth * .75)作为按钮的宽度。我发现这可以在Objective-C中通过做
CGFloat screenWidth = screenSize.width;
CGFloat screenHeight = screenSize.height;
不幸的是,我不确定如何将其转换为Swift。有人知道吗?
谢谢!
我想使用Swift代码在我的应用程序中正确定位项目,无论屏幕大小是什么。例如,如果我想要一个按钮的宽度是屏幕宽度的75%,我可以这样做(screenWidth * .75)作为按钮的宽度。我发现这可以在Objective-C中通过做
CGFloat screenWidth = screenSize.width;
CGFloat screenHeight = screenSize.height;
不幸的是,我不确定如何将其转换为Swift。有人知道吗?
谢谢!
当前回答
在Swift 5.0中
let screenSize: CGRect = UIScreen.main.bounds
斯威夫特4.0
// Screen width.
public var screenWidth: CGFloat {
return UIScreen.main.bounds.width
}
// Screen height.
public var screenHeight: CGFloat {
return UIScreen.main.bounds.height
}
在Swift 3.0中
let screenSize = UIScreen.main.bounds
let screenWidth = screenSize.width
let screenHeight = screenSize.height
用更古老的斯威夫特语: 你可以这样做:
let screenSize: CGRect = UIScreen.mainScreen().bounds
然后你可以像这样访问宽度和高度:
let screenWidth = screenSize.width
let screenHeight = screenSize.height
如果你想要屏幕宽度的75%,你可以这样做:
let screenWidth = screenSize.width * 0.75
其他回答
在Swift 5.0中
let screenSize: CGRect = UIScreen.main.bounds
斯威夫特4.0
// Screen width.
public var screenWidth: CGFloat {
return UIScreen.main.bounds.width
}
// Screen height.
public var screenHeight: CGFloat {
return UIScreen.main.bounds.height
}
在Swift 3.0中
let screenSize = UIScreen.main.bounds
let screenWidth = screenSize.width
let screenHeight = screenSize.height
用更古老的斯威夫特语: 你可以这样做:
let screenSize: CGRect = UIScreen.mainScreen().bounds
然后你可以像这样访问宽度和高度:
let screenWidth = screenSize.width
let screenHeight = screenSize.height
如果你想要屏幕宽度的75%,你可以这样做:
let screenWidth = screenSize.width * 0.75