首先来看看实现的效果图

下面话不多说，以下是实现的示例代码

#import <UIKit/UIKit.h> typedef void(^AlertResult)(NSInteger index); @interface XLAlertView : UIView @property (nonatomic,copy) AlertResult resultIndex; - (instancetype)initWithTitle:(NSString *)title message:(NSString *)message sureBtn:(NSString *)sureTitle cancleBtn:(NSString *)cancleTitle; - (void)showXLAlertView; @end

#import "XLAlertView.h" ///alertView 宽 #define AlertW 280 ///各个栏目之间的距离 #define XLSpace 10.0 @interface XLAlertView() //弹窗 @property (nonatomic,retain) UIView *alertView; //title @property (nonatomic,retain) UILabel *titleLbl; //内容 @property (nonatomic,retain) UILabel *msgLbl; //确认按钮 @property (nonatomic,retain) UIButton *sureBtn; //取消按钮 @property (nonatomic,retain) UIButton *cancleBtn; //横线线 @property (nonatomic,retain) UIView *lineView; //竖线 @property (nonatomic,retain) UIView *verLineView; @end @implementation XLAlertView - (instancetype)initWithTitle:(NSString *)title message:(NSString *)message sureBtn:(NSString *)sureTitle cancleBtn:(NSString *)cancleTitle { if (self == [super init]) { self.frame = [UIScreen mainScreen].bounds; self.backgroundColor = [UIColor colorWithWhite:0.8 alpha:0.6]; self.alertView = [[UIView alloc] init]; self.alertView.backgroundColor = [UIColor whiteColor]; self.alertView.layer.cornerRadius = 5.0; self.alertView.frame = CGRectMake(0, 0, AlertW, 100); self.alertView.layer.position = self.center; if (title) { self.titleLbl = [self GetAdaptiveLable:CGRectMake(2*XLSpace, 2*XLSpace, AlertW-4*XLSpace, 20) AndText:title andIsTitle:YES]; self.titleLbl.textAlignment = NSTextAlignmentCenter; [self.alertView addSubview:self.titleLbl]; CGFloat titleW = self.titleLbl.bounds.size.width; CGFloat titleH = self.titleLbl.bounds.size.height; self.titleLbl.frame = CGRectMake((AlertW-titleW)/2, 2*XLSpace, titleW, titleH); } if (message) { self.msgLbl = [self GetAdaptiveLable:CGRectMake(XLSpace, CGRectGetMaxY(self.titleLbl.frame)+XLSpace, AlertW-2*XLSpace, 20) AndText:message andIsTitle:NO]; self.msgLbl.textAlignment = NSTextAlignmentCenter; [self.alertView addSubview:self.msgLbl]; CGFloat msgW = self.msgLbl.bounds.size.width; CGFloat msgH = self.msgLbl.bounds.size.height; self.msgLbl.frame = self.titleLbl?CGRectMake((AlertW-msgW)/2, CGRectGetMaxY(self.titleLbl.frame)+XLSpace, msgW, msgH):CGRectMake((AlertW-msgW)/2, 2*XLSpace, msgW, msgH); } self.lineView = [[UIView alloc] init]; self.lineView.frame = self.msgLbl?CGRectMake(0, CGRectGetMaxY(self.msgLbl.frame)+2*XLSpace, AlertW, 1):CGRectMake(0, CGRectGetMaxY(self.titleLbl.frame)+2*XLSpace, AlertW, 1); self.lineView.backgroundColor = [UIColor colorWithWhite:0.8 alpha:0.6]; [self.alertView addSubview:self.lineView]; //两个按钮 if (cancleTitle && sureTitle) { self.cancleBtn = [UIButton buttonWithType:UIButtonTypeSystem]; self.cancleBtn.frame = CGRectMake(0, CGRectGetMaxY(self.lineView.frame), (AlertW-1)/2, 40); [self.cancleBtn setBackgroundImage:[self imageWithColor:[UIColor colorWithRed:255/255.0 green:255/255.0 blue:255/255.0 alpha:0.2]] forState:UIControlStateNormal]; [self.cancleBtn setBackgroundImage:[self imageWithColor:[UIColor colorWithRed:255/255.0 green:255/255.0 blue:255/255.0 alpha:0.2]] forState:UIControlStateSelected]; [self.cancleBtn setTitle:cancleTitle forState:UIControlStateNormal]; //[self.cancleBtn setTitleColor:[UIColor grayColor] forState:UIControlStateNormal]; self.cancleBtn.tag = 1; [self.cancleBtn addTarget:self action:@selector(buttonEvent:) forControlEvents:UIControlEventTouchUpInside]; UIBezierPath *maskPath = [UIBezierPath bezierPathWithRoundedRect:self.cancleBtn.bounds byRoundingCorners:UIRectCornerBottomLeft cornerRadii:CGSizeMake(5.0, 5.0)]; CAShapeLayer *maskLayer = [[CAShapeLayer alloc] init]; maskLayer.frame = self.cancleBtn.bounds; maskLayer.path = maskPath.CGPath; self.cancleBtn.layer.mask = maskLayer; [self.alertView addSubview:self.cancleBtn]; } if (cancleTitle && sureTitle) { self.verLineView = [[UIView alloc] init]; self.verLineView.frame = CGRectMake(CGRectGetMaxX(self.cancleBtn.frame), CGRectGetMaxY(self.lineView.frame), 1, 40); self.verLineView.backgroundColor = [UIColor colorWithWhite:0.8 alpha:0.6]; [self.alertView addSubview:self.verLineView]; } if(sureTitle && cancleTitle){ self.sureBtn = [UIButton buttonWithType:UIButtonTypeSystem]; self.sureBtn.frame = CGRectMake(CGRectGetMaxX(self.verLineView.frame), CGRectGetMaxY(self.lineView.frame), (AlertW-1)/2+1, 40); [self.sureBtn setBackgroundImage:[self imageWithColor:[UIColor colorWithRed:255/255.0 green:255/255.0 blue:255/255.0 alpha:0.2]] forState:UIControlStateNormal]; [self.sureBtn setBackgroundImage:[self imageWithColor:[UIColor colorWithRed:255/255.0 green:255/255.0 blue:255/255.0 alpha:0.2]] forState:UIControlStateSelected]; [self.sureBtn setTitle:sureTitle forState:UIControlStateNormal]; //[self.sureBtn setTitleColor:[UIColor whiteColor] forState:UIControlStateNormal]; self.sureBtn.tag = 2; [self.sureBtn addTarget:self action:@selector(buttonEvent:) forControlEvents:UIControlEventTouchUpInside]; UIBezierPath *maskPath = [UIBezierPath bezierPathWithRoundedRect:self.sureBtn.bounds byRoundingCorners:UIRectCornerBottomRight cornerRadii:CGSizeMake(5.0, 5.0)]; CAShapeLayer *maskLayer = [[CAShapeLayer alloc] init]; maskLayer.frame = self.sureBtn.bounds; maskLayer.path = maskPath.CGPath; self.sureBtn.layer.mask = maskLayer; [self.alertView addSubview:self.sureBtn]; } //只有取消按钮 if (cancleTitle && !sureTitle) { self.cancleBtn = [UIButton buttonWithType:UIButtonTypeSystem]; self.cancleBtn.frame = CGRectMake(0, CGRectGetMaxY(self.lineView.frame), AlertW, 40); [self.cancleBtn setBackgroundImage:[self imageWithColor:[UIColor colorWithRed:255/255.0 green:255/255.0 blue:255/255.0 alpha:0.2]] forState:UIControlStateNormal]; [self.cancleBtn setBackgroundImage:[self imageWithColor:[UIColor colorWithRed:255/255.0 green:255/255.0 blue:255/255.0 alpha:0.2]] forState:UIControlStateSelected]; [self.cancleBtn setTitle:cancleTitle forState:UIControlStateNormal]; //[self.cancleBtn setTitleColor:[UIColor grayColor] forState:UIControlStateNormal]; self.cancleBtn.tag = 1; [self.cancleBtn addTarget:self action:@selector(buttonEvent:) forControlEvents:UIControlEventTouchUpInside]; UIBezierPath *maskPath = [UIBezierPath bezierPathWithRoundedRect:self.cancleBtn.bounds byRoundingCorners:UIRectCornerBottomLeft | UIRectCornerBottomRight cornerRadii:CGSizeMake(5.0, 5.0)]; CAShapeLayer *maskLayer = [[CAShapeLayer alloc] init]; maskLayer.frame = self.cancleBtn.bounds; maskLayer.path = maskPath.CGPath; self.cancleBtn.layer.mask = maskLayer; [self.alertView addSubview:self.cancleBtn]; } //只有确定按钮 if(sureTitle && !cancleTitle){ self.sureBtn = [UIButton buttonWithType:UIButtonTypeSystem]; self.sureBtn.frame = CGRectMake(0, CGRectGetMaxY(self.lineView.frame), AlertW, 40); [self.sureBtn setBackgroundImage:[self imageWithColor:[UIColor colorWithRed:255/255.0 green:255/255.0 blue:255/255.0 alpha:0.2]] forState:UIControlStateNormal]; [self.sureBtn setBackgroundImage:[self imageWithColor:[UIColor colorWithRed:255/255.0 green:255/255.0 blue:255/255.0 alpha:0.2]] forState:UIControlStateSelected]; [self.sureBtn setTitle:sureTitle forState:UIControlStateNormal]; //[self.sureBtn setTitleColor:[UIColor grayColor] forState:UIControlStateNormal]; self.sureBtn.tag = 2; [self.sureBtn addTarget:self action:@selector(buttonEvent:) forControlEvents:UIControlEventTouchUpInside]; UIBezierPath *maskPath = [UIBezierPath bezierPathWithRoundedRect:self.sureBtn.bounds byRoundingCorners:UIRectCornerBottomLeft | UIRectCornerBottomRight cornerRadii:CGSizeMake(5.0, 5.0)]; CAShapeLayer *maskLayer = [[CAShapeLayer alloc] init]; maskLayer.frame = self.sureBtn.bounds; maskLayer.path = maskPath.CGPath; self.sureBtn.layer.mask = maskLayer; [self.alertView addSubview:self.sureBtn]; } //计算高度 CGFloat alertHeight = cancleTitle?CGRectGetMaxY(self.cancleBtn.frame):CGRectGetMaxY(self.sureBtn.frame); self.alertView.frame = CGRectMake(0, 0, AlertW, alertHeight); self.alertView.layer.position = self.center; [self addSubview:self.alertView]; } return self; } #pragma mark - 弹出 - - (void)showXLAlertView { UIWindow *rootWindow = [UIApplication sharedApplication].keyWindow; [rootWindow addSubview:self]; [self creatShowAnimation]; } - (void)creatShowAnimation { self.alertView.layer.position = self.center; self.alertView.transform = CGAffineTransformMakeScale(0.90, 0.90); [UIView animateWithDuration:0.25 delay:0 usingSpringWithDamping:0.8 initialSpringVelocity:1 options:UIViewAnimationOptionCurveLinear animations:^{ self.alertView.transform = CGAffineTransformMakeScale(1.0, 1.0); } completion:^(BOOL finished) { }]; } #pragma mark - 回调 -设置只有2 -- > 确定才回调 - (void)buttonEvent:(UIButton *)sender { if (sender.tag == 2) { if (self.resultIndex) { self.resultIndex(sender.tag); } } [self removeFromSuperview]; } -(UILabel *)GetAdaptiveLable:(CGRect)rect AndText:(NSString *)contentStr andIsTitle:(BOOL)isTitle { UILabel *contentLbl = [[UILabel alloc] initWithFrame:rect]; contentLbl.numberOfLines = 0; contentLbl.text = contentStr; contentLbl.textAlignment = NSTextAlignmentCenter; if (isTitle) { contentLbl.font = [UIFont boldSystemFontOfSize:16.0]; }else{ contentLbl.font = [UIFont systemFontOfSize:14.0]; } NSMutableAttributedString *mAttrStr = [[NSMutableAttributedString alloc] initWithString:contentStr]; NSMutableParagraphStyle *mParaStyle = [[NSMutableParagraphStyle alloc] init]; mParaStyle.lineBreakMode = NSLineBreakByCharWrapping; [mParaStyle setLineSpacing:3.0]; [mAttrStr addAttribute:NSParagraphStyleAttributeName value:mParaStyle range:NSMakeRange(0,[contentStr length])]; [contentLbl setAttributedText:mAttrStr]; [contentLbl sizeToFit]; return contentLbl; } -(UIImage *)imageWithColor:(UIColor *)color { CGRect rect = CGRectMake(0.0f, 0.0f, 1.0f, 1.0f); UIGraphicsBeginImageContext(rect.size); CGContextRef context = UIGraphicsGetCurrentContext(); CGContextSetFillColorWithColor(context, [color CGColor]); CGContextFillRect(context, rect); UIImage *theImage = UIGraphicsGetImageFromCurrentImageContext(); UIGraphicsEndImageContext(); return theImage; } @end

在需要使用的地方直接调用

XLAlertView *xlAlertView = [[XLAlertView alloc] initWithTitle:@"自定义UIAlertView" message:@"不喜勿喷，大神多多指导。不胜感激" sureBtn:@"确认" cancleBtn:@"取消"]; xlAlertView.resultIndex = ^(NSInteger index){ //回调---处理一系列动作 }; [xlAlertView showXLAlertView];

总结

以上就是这篇文章的全部内容了，希望本文的内容对各位iOS开发们能有所帮助，如果有疑问大家可以留言交流，谢谢大家对查字典教程网的支持。