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
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