我以编程方式创建一个按钮..........
button = [UIButton buttonWithType:UIButtonTypeRoundedRect];
[button addTarget:self action:@selector(aMethod:)
forControlEvents:UIControlEventTouchDown];
[button setTitle:@"Show View" forState:UIControlStateNormal];
button.frame = CGRectMake(80.0, 210.0, 160.0, 40.0);
[view addSubview:button];
如何更改标题颜色?
当前回答
Swift 3中的解决方案:
button.setTitleColor(UIColor.red, for: .normal)
这将设置按钮的标题颜色。
其他回答
在Swift 5中，UIButton有一个setTitleColor(_:for:)方法。setTitleColor(_:for:)有如下声明:
设置标题的颜色以用于指定的状态。
func setTitleColor(_ color: UIColor?, for state: UIControlState)
下面的Playground示例代码展示了如何在UIViewController中创建一个UIbutton，并使用setTitleColor(_:for:)改变它的标题颜色:
import UIKit
import PlaygroundSupport
class ViewController: UIViewController {
override func viewDidLoad() {
super.viewDidLoad()
view.backgroundColor = UIColor.white
// Create button
let button = UIButton(type: UIButton.ButtonType.system)
// Set button's attributes
button.setTitle("Print 0", for: UIControl.State.normal)
button.setTitleColor(UIColor.orange, for: UIControl.State.normal)
// Set button's frame
button.frame.origin = CGPoint(x: 100, y: 100)
button.sizeToFit()
// Add action to button
button.addTarget(self, action: #selector(printZero(_:)), for: UIControl.Event.touchUpInside)
// Add button to subView
view.addSubview(button)
}
@objc func printZero(_ sender: UIButton) {
print("0")
}
}
let controller = ViewController()
PlaygroundPage.current.liveView = controller
你创建的UIButton是添加到ViewController的，下面的实例方法改变UIButton的UIFont, tintColor和TextColor
objective - c
buttonName.titleLabel.font = [UIFont fontWithName:@"LuzSans-Book" size:15];
buttonName.tintColor = [UIColor purpleColor];
[buttonName setTitleColor:[UIColor purpleColor] forState:UIControlStateNormal];
斯威夫特
buttonName.titleLabel.font = UIFont(name: "LuzSans-Book", size: 15)
buttonName.tintColor = UIColor.purpleColor()
buttonName.setTitleColor(UIColor.purpleColor(), forState: .Normal)
Swift3
buttonName.titleLabel?.font = UIFont(name: "LuzSans-Book", size: 15)
buttonName.tintColor = UIColor.purple
buttonName.setTitleColor(UIColor.purple, for: .normal)
如果你正在使用Swift，这将做同样的事情:
但是
希望有帮助!
Swift 3中的解决方案:
button.setTitleColor(UIColor.red, for: .normal)
这将设置按钮的标题颜色。
你可以使用-[UIButton setTitleColor:forState:]来做到这一点。
例子:
objective - c
[buttonName setTitleColor:[UIColor blackColor] forState:UIControlStateNormal];
斯威夫特2
buttonName.setTitleColor(UIColor.blackColor(), forState: .Normal)
斯威夫特3
buttonName.setTitleColor(UIColor.white, for: .normal)
谢谢richardchildan
