1.创建一个类名(EncapsulationButton)继承自UIButton
2.在EncapsulationButton的.h文件中创建类方法 自定义要接收的参数
+(EncapsulationButton *)buttonWithType:(UIButtonType)type Frame:(CGRect)frame ButtonTitle:(NSString *)buttonTitle ButtonBackGroundColor:(UIColor *)buttonBackGroundColor ButtonBackgroundImage:(NSString *)buttonBackImage;
3.在EncapsulationButton.m文件中实现此方法
+(EncapsulationButton *)buttonWithType:(UIButtonType)type Frame:(CGRect)frame ButtonTitle:(NSString *)buttonTitle ButtonBackGroundColor:(UIColor *)buttonBackGroundColor ButtonBackgroundImage:(NSString *)buttonBackImage
{
//创建按钮对象
EncapsulationButton *button = [EncapsulationButton buttonWithType:type];
//设置按钮尺寸
button.frame = frame;
//设置按钮标题
[button setTitle:buttonTitle forState:UIControlStateNormal];
//设置按钮背景色
button.backgroundColor = buttonBackGroundColor;
//设置按钮背景图
[button setBackgroundImage:[UIImage imageNamed:buttonBackImage] forState:UIControlStateNormal];
//设置按钮文字居中
button.titleLabel.textAlignment = NSTextAlignmentCenter;
//返回一个按钮
return button;
}
4.在需要创建自定义按钮的类中引用头文件
//创建一个自定义按钮
EncapsulationButton *btn = [EncapsulationButton buttonWithType:UIButtonTypeCustom Frame:CGRectMake(50, 100, 100, 38) ButtonTitle:@"按钮" ButtonBackGroundColor:[UIColor redColor] ButtonBackgroundImage:@"1"];
//将控件添加到视图上
[self.view addSubview:btn];
