UIButton的使用

//1.UIButton的创建

UIButton *button1 = [UIButton buttonWithType:UIButtonTypeSystem];

button1.frame = CGRectMake(50,50,50,50);

//2.给button1设置名字

[button1 setTitle:@"登陆" forState:UIControlStateNormal];

//3.为按钮添加事件，指定按钮点击之后，执行target的action的方法

[button1 addTarget:self action:@selector(button1Action:) forControlEvents:UIControlEventTouchUpInside];

//4.移除按钮的点击事件

[button1 removeTarget:self action:@selector(button1remove:) forControlEvents:(UIControlEventTouchUpInSide])

//5.设置和获取指定状态下得标题

[button1 setTItle:@"登陆" forState:UIControlStateNormal];//设置标题

NSString *normalTitle = [button1 titleForState:UIControlStateNormal];//获取标题

//6.设置和获取指定状态下得标题颜色

[button1 setTitleColor:[UIColor redColor] forState:UIControlStateNormal];//设置标题颜色

UIColor *normalTitleColor = [button1 titleColorForState:UIControlStateNormal];//获取标题颜色

//7.设置指定状态下的标题阴影的颜色

[button1 setTitleShadowColor:[UIColor redCOlor] forState:UIControlStateNormal];//设置标题阴影颜色

//8.设置指定状态下得背景图片

[button1 setBackgroundImage:[UIImage imageNamed:@"1.png"] forState:UIControlStateNormal];