iOS_UIButton 簡單操作

iOS_UIButton 簡單操作
UIButton 風格

typedef NS_ENUM(NSInteger, UIButtonType) {    UIButtonTypeCustom = 0,                         // no button type    UIButtonTypeSystem NS_ENUM_AVAILABLE_IOS(7_0),  // standard system button    UIButtonTypeDetailDisclosure,    UIButtonTypeInfoLight,    UIButtonTypeInfoDark,    UIButtonTypeContactAdd,    UIButtonTypeRoundedRect = UIButtonTypeSystem,   // Deprecated, use UIButtonTypeSystem instead};

簡單操作

    UIButton *button = [UIButton buttonWithType:UIButtonTypeSystem];    button.tag = 100; // 給 Button 委任標記 在不同的方法中使用同一個控制項    button.frame = CGRectMake(30, 170, 200, 40);    [self.window addSubview:button];    // 設定按鈕文字，需要設定狀態    [button setTitle:@"按鈕" forState:UIControlStateNormal];//    [button setTitle:@"Hello" forState:UIControlStateHighlighted];    [button setTitleColor:[UIColor blueColor] forState:UIControlStateNormal]; // 給字型設定顏色        button.showsTouchWhenHighlighted = YES; // 高亮    // 給button綁定事件    [button addTarget:self // 接受訊息的對象               action:@selector(buttonAction:) // 發送的訊息     forControlEvents:UIControlEventTouchUpInside]; // 觸發的方式

Button 方法

- (void) buttonAction{    NSLog(@"哢");    // 通過 tag ，從父類別檢視中擷取button    UIButton *btn = (UIButton *)[self.window viewWithTag:100];    [btn setTitle:@"點我" forState:UIControlStateNormal];    // 讓 Button 失效    [btn removeTarget:self action:@selector(buttonAction) forControlEvents:UIControlEventTouchUpInside];}- (void) buttonAction:(UIButton *)sender{    sender.backgroundColor = [UIColor redColor];}