iOS UIButton基本属性及定义

释放双眼,带上耳机,听听看~!
  • 第一、UIButton的定义
  UIButton *button=[[UIButton buttonWithType:(UIButtonType);

能够定义的button类型有以下6种,

  typedef enum {
  UIButtonTypeCustom = 0, 自定义风格
  UIButtonTypeRoundedRect, 圆角矩形
  UIButtonTypeDetailDisclosure, 蓝色小箭头按钮,主要做详细说明用
  UIButtonTypeInfoLight, 亮色感叹号
  UIButtonTypeInfoDark, 暗色感叹号
  UIButtonTypeContactAdd, 十字加号按钮
  } UIButtonType;
  • 第二、设置frame
  button1.frame = CGRectMake(20, 20, 280, 40);
  [button setFrame:CGRectMake(20,20,50,50)];
  • 第三、button背景色
  button1.backgroundColor = [UIColor clearColor];
  [button setBackgroundColor:[UIColor blueColor]];
  • 第四、state状态
    forState: 这个参数的作用是定义按钮的文字或图片在何种状态下才会显现
  enum {
  UIControlStateNormal = 0, 常规状态显现
  UIControlStateHighlighted = 1 << 0, 高亮状态显现
  UIControlStateDisabled = 1 << 1, 禁用的状态才会显现
  UIControlStateSelected = 1 << 2, 选中状态
  UIControlStateApplication = 0x00FF0000, 当应用程序标志时
  UIControlStateReserved = 0xFF000000 为内部框架预留,可以不管
  };
  @property(nonatomic,getter=isEnabled)BOOL enabled; // default is YES. if NO, ignores touch events and subclasses may draw differently
  @property(nonatomic,getter=isSelected)BOOL selected; // default is NO may be used by some subclasses or by application
  @property(nonatomic,getter=isHighlighted)BOOL highlighted;
  • 第五 、设置button填充图片和背景图片
  [buttonsetImage:[UIImageimageNamed:@"checkmarkControllerIcon"]forState:UIControlStateNormal];
  [buttonsetBackgroundImage:[UIImageimageNamed:@"checkmarkControllerIcon"]forState:UIControlStateNormal];
  • 第六、设置button标题和标题颜色
  [button1 setTitle:@"点击" forState:UIControlStateNormal];
  [buttonsetTitleColor:[UIColorredColor]forState:UIControlStateNormal];
  • 第七、设置按钮按下会发光
 button.showsTouchWhenHighlighted=NO;
  • 第八、添加或删除事件处理
  [button1 addTarget:self action:@selector(butClick:) forControlEvents:UIControlEventTouchUpInside];
  [btn removeTarget:nil action:nil forControlEvents:UIControlEventTouchUpInside];
  • 第九、 设置按钮内部图片间距和标题间距
  UIEdgeInsets insets; // 设置按钮内部图片间距
  insets.top = insets.bottom = insets.right = insets.left = 10;
  bt.contentEdgeInsets = insets;
  bt.titleEdgeInsets = insets; // 标题间距

 

人已赞赏
iOS文章

iOS UIButton内文字自适应button长度

2020-5-14 20:03:02

iOS文章

升级10.11后Xcode的CocoaPods插件报错

2020-5-14 21:18:04

0 条回复 A文章作者 M管理员
    暂无讨论,说说你的看法吧
个人中心
购物车
优惠劵
今日签到
有新私信 私信列表
搜索