ios 自定义按钮

害，长期苦于按钮久矣，每次都要图、文位置调整好麻烦、心累，所以自定义一个按钮吧

#import <UIKit/UIKit.h>

NS_ASSUME_NONNULL_BEGIN

@interface HLTButton : UIControl
@property(nonatomic,strong)UILabel *lable;
@property(nonatomic,strong)UIImageView *imagView;
+(instancetype)layoutLeadingtitle:(NSString *)title  imageName:(NSString *)imageName axi:(UILayoutConstraintAxis)axi;

+(instancetype)layoutLeadingimageName:(NSString *)imageName   title:(NSString *)title axi:(UILayoutConstraintAxis)axi;

- (void)setTitle:(NSString *)title forState:(UIControlState)state;

- (void)setTitleColor:(UIColor *)color forState:(UIControlState)state;

- (void)setImage:(NSString *)imageName forState:(UIControlState)state;

@property(nonatomic,assign)CGSize intrinsicContentExtraSize;

@property(nonatomic,assign) CGFloat spacing;


@end

NS_ASSUME_NONNULL_END

//
//  HLTButton.m
//  01-Autolayout
//
//  Created by HlT on 2022/3/25.
//

#import "HLTButton.h"
@interface HLTButton()
@property(nonatomic,strong)UIStackView *stackView;
@property(nonatomic,strong)NSString *selectedText;
@property(nonatomic,strong)NSString *normalText;
@property(nonatomic,strong)UIColor *selectedTitleColor;
@property(nonatomic,strong)UIColor *normalTitleColor;
@property(nonatomic,strong)NSString *selectedImageName;
@property(nonatomic,strong)NSString *normalImageName;
@end
@implementation HLTButton
+(instancetype)layoutLeadingtitle:(NSString *)title  imageName:(NSString *)imageName axi:(UILayoutConstraintAxis)axi{
    HLTButton *btn =[[HLTButton alloc]init];
    btn.lable.text = title;
    btn.normalText = title;
    btn.selectedText = title;
    btn.imagView.image =[UIImage imageNamed:imageName];
    btn.selectedImageName = imageName;
    btn.normalImageName = imageName;
    [btn.stackView addArrangedSubview:btn.lable];
    [btn.stackView addArrangedSubview:btn.imagView];
    btn.stackView.axis = axi;
    return btn;
}
+(instancetype)layoutLeadingimageName:(NSString *)imageName   title:(NSString *)title axi:(UILayoutConstraintAxis)axi{
    HLTButton *btn =[[HLTButton alloc]init];
    btn.lable.text = title;
    btn.lable.text = title;
    btn.normalText = title;
    btn.selectedText = title;
    btn.imagView.image =[UIImage imageNamed:imageName];
    btn.selectedImageName = imageName;
    btn.normalImageName = imageName;
    [btn.stackView addArrangedSubview:btn.imagView];
    [btn.stackView addArrangedSubview:btn.lable];
    btn.stackView.axis = axi;
    return btn;
}
- (void)setTitle:(NSString *)title forState:(UIControlState)state{
    if (state==UIControlStateSelected) {
        self.selectedText = title;
        self.lable.text = self.selectedText;
    }else{
        self.normalText = title;
        self.lable.text = self.normalText;
    }
    if (self.selected==YES) {
        self.lable.text = self.selectedText;
    }else{
        self.lable.text = self.normalText;
    }
    [self.stackView setNeedsLayout];
    [self invalidateIntrinsicContentSize];
}

- (void)setTitleColor:(UIColor *)color forState:(UIControlState)state{
    if (state==UIControlStateSelected) {
        self.selectedTitleColor = color;
        self.lable.textColor = self.selectedTitleColor;
    }else{
        self.normalTitleColor = color;
        self.lable.textColor = self.normalTitleColor;
    }
    if (self.selected==YES) {
        self.lable.textColor = self.selectedTitleColor;
    }else{
        self.lable.textColor = self.normalTitleColor;
    }
}

- (void)setImage:(NSString *)imageName forState:(UIControlState)state{
    if (state==UIControlStateSelected) {
        self.selectedImageName = imageName;
    }else{
        self.normalImageName = imageName;
    }
    
    if (self.selected==YES) {
        self.imagView.image =[UIImage imageNamed:self.selectedImageName];
    }else{
        self.imagView.image =[UIImage imageNamed:self.normalImageName];
    }
    [self.stackView setNeedsLayout];
    [self invalidateIntrinsicContentSize];
}


- (void)setSelected:(BOOL)selected{
    [super setSelected:selected];
    if (selected==YES) {
        self.lable.text = self.selectedText;
        self.lable.textColor = self.selectedTitleColor;
        self.imagView.image =[UIImage imageNamed:self.selectedImageName];
    }else{
        self.lable.text = self.normalText;
        self.lable.textColor = self.normalTitleColor;
        self.imagView.image =[UIImage imageNamed:self.normalImageName];
    }
    [self.stackView setNeedsLayout];
    [self invalidateIntrinsicContentSize];
}

- (instancetype)initWithFrame:(CGRect)frame{
    self = [super initWithFrame:frame];
    if (self) {
        UIStackView *stackview =[[UIStackView alloc]init];
        [self addSubview:stackview];
        stackview.userInteractionEnabled = NO;
        stackview.translatesAutoresizingMaskIntoConstraints = NO;
        [[stackview.centerYAnchor constraintEqualToAnchor:self.centerYAnchor]setActive:YES];
        [[stackview.centerXAnchor constraintEqualToAnchor:self.centerXAnchor]setActive:YES];
        self.lable =[[UILabel alloc]init];
        self.normalTitleColor = self.lable.textColor;
        self.selectedTitleColor = self.lable.textColor;
        stackview.alignment= UIStackViewAlignmentCenter;
        self.imagView.userInteractionEnabled = YES;
       self.imagView =[[UIImageView alloc]init];
        self.stackView = stackview;
    }
    return self;
}
- (CGSize)intrinsicContentSize{
  [self.stackView layoutIfNeeded];
   CGFloat  w = self.stackView.bounds.size.width+self.intrinsicContentExtraSize.width;
   CGFloat  h = self.stackView.bounds.size.height+self.intrinsicContentExtraSize.height;
    
   return CGSizeMake(w, h);
    
}

- (void)setSpacing:(CGFloat)spacing{
    _spacing =spacing;
    self.stackView.spacing = spacing;
    [self invalidateIntrinsicContentSize];
}

@end

- (void)viewDidLoad {
    [super viewDidLoad];
    // Do any additional setup after loading the view.
  
    //1、水平方式排布：UILayoutConstraintAxisHorizontal
    //[self test1];//左图、右文字
    
    //[self test2];//左文、右图

    
    //2、水平方式排布：UILayoutConstraintAxisHorizontal
    //[self test3];//上文字、下图
    
     // [self test4];上图、下文字
    
    
    //3、其它基本设置
    HLTButton *btn =[HLTButton layoutLeadingimageName:@"unselect" title:@"点我啊" axi:UILayoutConstraintAxisHorizontal];
   [btn setTitle:@"来点我啊" forState:UIControlStateSelected];
    btn.lable.font = [UIFont systemFontOfSize:12];
    btn.spacing = 10;
    btn.backgroundColor =[UIColor yellowColor];
    [self.view addSubview:btn];
    
    //有外部约束确定大小
//    [btn mas_makeConstraints:^(MASConstraintMaker *make) {
//        make.centerY.equalTo(self.view);
//        make.left.offset(100);
//        make.right.offset(-100);
//        make.height.equalTo(@300);
//    }];
    
    //当然也可以用framae
    //btn.frame = CGRectMake(100, 100, 100, 300);
    
    
    
    
    //没有外部大小，可以从本身有固有大小自适应
    [btn mas_makeConstraints:^(MASConstraintMaker *make) {
        make.center.equalTo(self.view);
    }];
//
   
    
    //给固有大小增加额外的大小，保证左右两边有一定间隙
    //btn.intrinsicContentExtraSize = CGSizeMake(30, 0);
    
 
    [btn setImage:@"select" forState:UIControlStateSelected];
    
    [btn setTitleColor:[UIColor redColor] forState:UIControlStateSelected];
    
    [btn addTarget:self action:@selector(click:) forControlEvents:UIControlEventTouchUpInside];
}

- (void)click:(UIControl *)sender{
    sender.selected=!sender.selected;
}