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
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
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,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,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,msgW,msgH):CGRectMake((AlertW-msgW)/2,msgH);}
self.lineView = [[UIView alloc] init];
self.lineView.frame = self.msgLbl?CGRectMake(0,CGRectGetMaxY(self.msgLbl.frame)+2XLSpace,1):CGRectMake(0,CGRectGetMaxY(self.titleLbl.frame)+2XLSpace,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),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),(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(0,40); [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(0,40); [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,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
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，谢谢大家对编程之家的支持。
原文链接：https://www.f2er.com/php/18495.html