UI 常用方法總結之--- UIButton UIAlertView

UIButton : UIControl <NSCoding>

 

1.創建一個UIButton對象

UIButton *button = [UIButton buttonWithType:UIButtonTypeSystem];

button.frame = CGRectMake(30, 140, 280, 30);

 

2.- (void)setTitle:(NSString *)title forState:(UIControlState)state;

設置按鈕顯示文字 

eg:[button setTitle:@"點擊" forState:UIControlStateNormal];

 

3.showsTouchWhenHighlighted

點擊的時候設置button的高亮

eg:button.showsTouchWhenHighlighted = YES;

 

4.- (void)addTarget:(id)target action:(SEL)action forControlEvents:(UIControlEvents)controlEvents;

給按鈕綁定一個方法,點擊的時候 讓某個特定的對象調用這個方法

參數1:執行方法的對象

參數2:要執行的方法(參數1的對象去執行)

 

參數3:按鈕讓綁定的對象調用方法,需要觸發的事件

[button addTarget:self action:@selector(buttonClicked:) forControlEvents:UIControlEventTouchUpInside];

 

 

UIAlertView : UIView

 

1.創建一個UIAlertView對象

- (instancetype)initWithTitle:(NSString *)title message:(NSString *)message delegate:(id /*<UIAlertViewDelegate>*/)delegate cancelButtonTitle:(NSString *)cancelButtonTitle otherButtonTitles:(NSString *)otherButtonTitles

eg:UIAlertView *alertview = [[UIAlertView alloc]initWithTitle:@"提示" message:@"message" delegate:self cancelButtonTitle:@"取消" otherButtonTitles:@“確定1",@“確定2", nil];

 

2.- (void)show;

顯示UIAlertView

eg:[alertview show];

 

 

3.- (void)alertView:(UIAlertView *)alertView clickedButtonAtIndex:(NSInteger)buttonIndex;

點擊了alertView上的哪個按鈕