XAlertView

一、自定义XAlertView继承自UIView

XAlertView.h

#define kXAlertViewWidth (kScreenWidth*250/375)
#define kXAlertViewHeight (kScreenHeight*150/667)
//自定义XAlertView👆

#import <UIKit/UIKit.h>

//代理
@protocol XAlertViewDelegate <NSObject>

//代理方法
- (void)yesBtnPressed;
- (void)noBtnPressed;


@end

@interface XAlertView : UIView
//属性
@property (nonatomic, assign) NSString *title;
@property (nonatomic, assign) NSString *message;
@property (nonatomic, strong) UIWindow *alphaWindow;
//代理
@property (weak, nonatomic) id<XAlertViewDelegate> delegate;

//方法
- (void) showAnimated;

@end

XAlertView.m

#import "XAlertView.h"

@interface XAlertView ()
//私有属性
//@property (nonatomic, strong) UIWindow *alphaWindow;
@property (nonatomic, strong) UILabel *titleLabel;
@property (nonatomic, strong) UILabel *messageLabel;
@property (nonatomic, strong) UIButton *yesBtn;
@property (nonatomic, strong) UIButton *noBtn;

@end

@implementation XAlertView

-(instancetype)initWithFrame:(CGRect)frame{
    if (self = [super initWithFrame:frame]) {
        //背景色
        self.backgroundColor = [UIColor colorWithRed:70/255.0 green:130/255.0 blue:180/255.0 alpha:0.8];
        //圆角
        self.layer.cornerRadius = 15;
        self.layer.masksToBounds = YES;
        
        //添加控件
        [self addSubview:self.titleLabel];
        [self addSubview:self.messageLabel];
        [self addSubview:self.noBtn];
        [self addSubview:self.yesBtn];
    }
    return self;
}


#pragma mark 懒加载控件
-(UIWindow *)alphaWindow{
    if (!_alphaWindow) {
        _alphaWindow = [[UIWindow alloc] init];
        _alphaWindow.backgroundColor = [UIColor colorWithRed:0 green:0 blue:0 alpha:0.5];
        _alphaWindow.windowLevel = 101;
    }
    return _alphaWindow;
}

-(UILabel *)titleLabel{
    if (!_titleLabel) {
        _titleLabel = [[UILabel alloc] init];
        _titleLabel.font = [UIFont fontWithName:@"Monaco" size:18];
        _titleLabel.textAlignment = NSTextAlignmentCenter;
        _titleLabel.textColor = [UIColor whiteColor];
    }
    return _titleLabel;
}

-(UILabel *)messageLabel{
    if (!_messageLabel) {
        _messageLabel = [[UILabel alloc] init];
        _messageLabel.font = [UIFont fontWithName:@"Monaco" size:12];
        _messageLabel.textAlignment = NSTextAlignmentCenter;
        _messageLabel.textColor = [UIColor whiteColor];
    }
    return _messageLabel;
}

-(UIButton *)noBtn{
    if (!_noBtn) {
        _noBtn = [[UIButton alloc] init];
        [_noBtn addTarget:self action:@selector(noBtnPressed) forControlEvents:UIControlEventTouchDown];
        [_noBtn setImage:[UIImage imageNamed:@"no"] forState:UIControlStateNormal];
        _noBtn.frame = CGRectMake(30, self.frame.size.height - 15 - 28, 28, 28);
    }
    return _noBtn;
}

-(UIButton *)yesBtn{
    if (!_yesBtn) {
        _yesBtn = [[UIButton alloc] init];
        [_yesBtn addTarget:self action:@selector(yesBtnPressed) forControlEvents:UIControlEventTouchDown];
        [_yesBtn setImage:[UIImage imageNamed:@"yes"] forState:UIControlStateNormal];
        _yesBtn.frame = CGRectMake(self.frame.size.width - 30 - 28, self.noBtn.frame.origin.y
                                   - 5, 35, 35);
    }
    return _yesBtn;
}

#pragma mark 设值方法
-(void)setTitle:(NSString *)title{
    if (title) {
        _title = title;
        self.titleLabel.text = title;
        [self.titleLabel sizeToFit];
        CGRect rect = self.titleLabel.frame;
        rect.origin.x = self.frame.size.width/2 - rect.size.width/2;
        rect.origin.y = 10;
        self.titleLabel.frame = rect;
    }
}

-(void)setMessage:(NSString *)message{
    if (message) {
        _message = message;
        self.messageLabel.text = message;
        [self.messageLabel sizeToFit];
        CGRect rect = self.messageLabel.frame;
        rect.origin.x = self.frame.size.width/2 - rect.size.width/2;
        rect.origin.y = CGRectGetMaxY(self.titleLabel.frame) + 10;
        self.messageLabel.frame = rect;
    }
}

#pragma mark 带动画显示
-(void)showAnimated{
    self.alphaWindow.frame = [UIScreen mainScreen].bounds;
    [self.alphaWindow makeKeyAndVisible];
    [self.alphaWindow addSubview:self];
    
    //动画效果👇
    CAKeyframeAnimation *animation;
    animation = [CAKeyframeAnimation animationWithKeyPath:@"transform"];
    animation.duration = 0.25;
    animation.removedOnCompletion = YES;
    animation.fillMode = kCAFillModeForwards;
    
    NSMutableArray *values = [NSMutableArray array];
    [values addObject:[NSValue valueWithCATransform3D:CATransform3DMakeScale(0.9, 0.9, 1.0)]];
    [values addObject:[NSValue valueWithCATransform3D:CATransform3DMakeScale(1.1, 1.1, 1.1)]];
    [values addObject:[NSValue valueWithCATransform3D:CATransform3DMakeScale(1.0, 1.0, 1.0)]];
    
    animation.values = values;
    
    [self.layer addAnimation:animation forKey:nil];
    //动画效果👆
}

#pragma mark 按钮点击方法 代理执行代理方法
- (void)noBtnPressed{
    if ([self.delegate respondsToSelector:@selector(noBtnPressed)]) {
        [self removeFromSuperview];
        [self.delegate noBtnPressed];
    }
}

- (void)yesBtnPressed{
    if ([_delegate respondsToSelector:@selector(yesBtnPressed)]) {
        [self removeFromSuperview];
        [_delegate yesBtnPressed];
    }
}

@end