UIButton总结

1、初始化

　　UIButton *btn = [UIButton buttonWithType:UIButtonTypeCustom];

　　[btn setFrame:CGRectMake(100, 100, 60, 60)];

　　[self.view addSubview:btn];

2、常用设置

设置文字、文字颜色、图片

　　[btn setTitle:@"盖" forState:UIControlStateNormal];

　　[btn setTitleColor:[UIColor brownColor] forState:UIControlStateNormal];

      [optionButton setTitleEdgeInsets:UIEdgeInsetsMake(2, 2, 2, 2)];//文字内边距

　　[btn1 setImage:[UIImage imageNamed:@"beer-cap"] forState:UIControlStateNormal];//image会覆盖文字

　　[self.imageButton setAdjustsImageWhenDisabled:NO];//自适应图片的大小

设置背景图、背景颜色

　　[btn1 setBackgroundImage:[UIImage imageNamed:@"beer-cap"] forState:UIControlStateNormal];

　　[btn1 setBackgroundColor:[UIColor blueColor]];//背景图部分透明时配合使用

选中

    [self.cuttentOptionButton setSelected:NO];

设置tag

　　[btn1 setTag:21];

　　UIButton * btn2 = [self.view viewWithTag:21];//根据tag获取

隐藏

　　button.hidden = YES;或  [button isHidden];

几个常用的只读属性，用于判断、赋值

　　NSString *currentTitle;             // normal/highlighted/selected/disabled. can return nil

　　UIColor  *currentTitleColor;        // normal/highlighted/selected/disabled. always returns non-nil. default is white(1,1)

　　UIColor  *currentTitleShadowColor;  // normal/highlighted/selected/disabled.

　　UIImage  *currentImage;             // normal/highlighted/selected/disabled. can return nil

　　UIImage  *currentBackgroundImage;   // normal/highlighted/selected/disabled. can return nil

　　NSAttributedString *currentAttributedTitle NS_AVAILABLE_IOS(6_0);  // normal/highlighted/selected/disabled. can return nil

3、添加事件

　　[button addTarget:self action:@selector(btnMove:) forControlEvents:UIControlEventTouchUpInside];//带参，参数为按钮本身

UIButton总结

原文：http://www.cnblogs.com/ininin/p/5767163.html