自定义一个类似UIAlertView的弹出框

这个是和UIAlertView类似，但是可以自定义view的样式废话不多说，上代码：

首先第一步：创建一个继承自View的类如：

#import <UIKit/UIKit.h>

@class <#你自己的类名#>;

@protocol PopupViewDelegate <NSObject>

- (void)popupView:(<#你自己的类名#>*)popupView ClickedButtonAtIndex:(NSInteger)buttonIndex;

@end

@interface <#你自己的类名#> : UIView

/**初始化View

* title   * 提示内容

* message * 需要显示的内容

* cancelButtonTitle *取消按钮的文字

* okButtonTitles *确认按钮的文字

* delegate  * 当前代理者

*/

- (instancetype)initWithTitle:(NSString *)title message:(NSString *)message cancelButtonTitle:(NSString *)cancelButtonTitle okButtonTitles:(NSString *)okButtonTitles delegate:(id)delegate;

/**弹出该View*/

- (void)show;

@property (nonatomic,strong)id <PopupViewDelegate>  delegate;

@end

/**上方的方法直接贴到View的.h文件中就好，当然类名需要更改的*/

//屏幕宽度

#define SCREEN_WIDTH [UIScreen mainScreen].bounds.size.width

//获得屏幕高度

#define SCREEN_HEIGHT ([UIScreen mainScreen].bounds.size.height)

#define kNoButtonW 120

#define kNoButtonH 35

#define kButtonRadius 15

#define kFontNameStrBold @"Helvetica-Bold"

#define kFontNameStrRegular @"Helvetica"

#import " <#你自己的类名#>"

@interface  <#你自己的类名#>()

/**中间黑色的View*/

@property (nonatomic,strong)UIView * blackeView;

/**提示框的Lable*/

@property (nonatomic,strong)UILabel * titleLable;

/**描述内容的Lable*/

@property (nonatomic,strong)UILabel * desLabel;

/**取消或者NO的button*/

@property (nonatomic,strong)UIButton * noButton;

/**YES或者OK的button*/

@property (nonatomic,strong)UIButton * yesButton;

@end

@implementation  <#你自己的类名#>

- (instancetype)initWithTitle:(NSString *)title message:(NSString *)message cancelButtonTitle:(NSString *)cancelButtonTitle okButtonTitles:(NSString *)okButtonTitles delegate:(id)delegate

{

if (self = [super init]) {

self.frame = CGRectMake(0, 0,SCREEN_WIDTH, SCREEN_HEIGHT);

self.backgroundColor = [UIColor colorWithRed:0 green:0 blue:0 alpha:0.2];

/**设置弹出View的动画*/

[self setupWithBlackView];

/**往黑色View中添加子控件*/

[self setupWithAddControls];

self.titleLable.text = title;

self.desLabel.text = message;

self.delegate = delegate;

[self.noButton setTitle:cancelButtonTitle forState:UIControlStateNormal];

[self.yesButton setTitle:okButtonTitles forState:UIControlStateNormal];

}

return self;

}

/**设置添加黑色View的动画*/

-(void)setupWithBlackView

{

UIView * blackView =[[UIView alloc]init];

blackView.layer.cornerRadius = 10;

blackView.layer.masksToBounds = YES;

self.blackeView = blackView;

blackView.backgroundColor = [UIColor colorWithRed:31/255.0 green:31/255.0 blue:31/255.0 alpha:1];

[self addSubview:blackView];

}

/**往黑色View中添加子控件*/

-(void)setupWithAddControls

{

/**标题文本*/

UILabel * titleLable = [[UILabel alloc]init];

titleLable.numberOfLines = 0;

titleLable.textAlignment = NSTextAlignmentCenter;

//    titleLable.backgroundColor = [UIColor redColor];

titleLable.font = [UIFont fontWithName:kFontNameStrBold size:22];

titleLable.textColor = [UIColor whiteColor];

self.titleLable = titleLable;

[self.blackeView addSubview:titleLable];

/**内容的文本*/

UILabel * descLable = [[UILabel alloc]init];

self.desLabel = descLable;

descLable.numberOfLines = 0;

descLable.textAlignment = NSTextAlignmentCenter;

//    descLable.backgroundColor = [UIColor orangeColor];

descLable.font = [UIFont fontWithName:kFontNameStrRegular size:15];

descLable.textColor = [UIColor whiteColor];

[self.blackeView addSubview:descLable];

/**确认按钮的添加*/

UIButton * yesButton = [[UIButton alloc]init];

yesButton.tag = 2;

[yesButton addTarget:self action:@selector(yesOrNOButtonClcik:) forControlEvents:UIControlEventTouchUpInside];

self.yesButton  = yesButton;

[yesButton setBackgroundColor:[UIColor colorWithRed:25/255.0 green:164/255.0 blue:58/255.0 alpha:1]];

yesButton.titleLabel.font = [UIFont fontWithName:kFontNameStrBold size:17];

[yesButton setTitleColor:[UIColor whiteColor] forState:UIControlStateNormal];

yesButton.layer.cornerRadius = kButtonRadius;

yesButton.layer.masksToBounds = YES;

[self.blackeView addSubview:yesButton];

/**取消按钮的添加*/

UIButton * noButton =[[UIButton alloc]init];

noButton.tag = 1;

[noButton addTarget:self action:@selector(yesOrNOButtonClcik:) forControlEvents:UIControlEventTouchUpInside];

[noButton setBackgroundColor:[UIColor colorWithRed:38/255.0 green:38/255.0 blue:38/255.0 alpha:1]];

NSString * buttonstr = [NSString stringWithFormat:@"%@",noButton.titleLabel.text];

NSInteger buttonLength =buttonstr.length;

if (5< buttonLength) {

noButton.titleLabel.font = [UIFont fontWithName:kFontNameStrBold size:15];

yesButton.titleLabel.font= [UIFont fontWithName:kFontNameStrBold size:15];

}else{

noButton.titleLabel.font = [UIFont fontWithName:kFontNameStrBold size:17];

}

[noButton setTitleColor:[UIColor redColor] forState:UIControlStateNormal];

noButton.layer.cornerRadius = kButtonRadius;

noButton.layer.masksToBounds = YES;

self.noButton = noButton;

[self.blackeView addSubview:noButton];

}

-(void)layoutSubviews

{

//设置黑色View的frame

self.blackeView.frame =CGRectMake(0, 0, self.bounds.size.width/1.2, 170);

self.blackeView.center = CGPointMake(self.center.x, self.center.y);

//设置titleLable的frame

NSString * titlestr = [NSString stringWithFormat:@"%@",self.titleLable.text];

NSInteger titlerlength =titlestr.length;

if (30<titlerlength) {

self.titleLable.frame = CGRectMake(10,0,self.blackeView.bounds.size.width/1.07 ,60);

}else{

self.titleLable.frame = CGRectMake(10, 10,self.blackeView.bounds.size.width/1.07 ,40);

}

//设置内容的lable

self.desLabel.frame = CGRectMake(10,CGRectGetMaxY(self.titleLable.bounds),self.blackeView.bounds.size.width/1.07, 50);

//设置NO的按钮frame

CGFloat nobtnH = kNoButtonH;

CGFloat nobtnW = kNoButtonW;

self.noButton.frame = CGRectMake(10, CGRectGetMaxY(self.blackeView.bounds)-nobtnH-15, nobtnW, nobtnH);

//设置YES的按钮frame

self.yesButton.frame = CGRectMake(CGRectGetMaxX(self.blackeView.bounds)-nobtnW -10, CGRectGetMaxY(self.blackeView.bounds)-nobtnH-15 ,self.noButton.bounds.size.width, self.noButton.bounds.size.height);

/**根据判断来设置frame*/

[self stupOrEmpty];

}

-(void)stupOrEmpty

{

if ([self.noButton.titleLabel.text isEqualToString:@""] ||self.noButton.titleLabel.text ==nil)

{//如果No按钮没有文字则只显示YES按钮

self.noButton.hidden = YES;

self.yesButton.frame = CGRectMake(0,0, kNoButtonW +30, kNoButtonH);

self.yesButton.center = CGPointMake(self.blackeView.bounds.size.width/2, CGRectGetMaxY(self.blackeView.bounds)-kNoButtonH);

}else if ([self.yesButton.titleLabel.text isEqualToString:@""]|| self.yesButton.titleLabel.text == nil)

{//如果YES按钮没有文字则只显示NO按钮

self.yesButton.hidden = YES;

self.noButton.frame = CGRectMake(0, 0, kNoButtonW+30, kNoButtonH);

self.noButton.center = CGPointMake(self.blackeView.bounds.size.width/2, CGRectGetMaxY(self.blackeView.bounds)-kNoButtonH);

[self.noButton setTitleColor:[UIColor whiteColor] forState:UIControlStateNormal];

[self.noButton setBackgroundColor:[UIColor colorWithRed:25/255.0 green:164/255.0 blue:58/255.0 alpha:1]];

}

//判断文本是否有内容

if([self.titleLable.text isEqualToString:@""]||self.titleLable.text ==nil)

{

self.desLabel.font = [UIFont fontWithName:kFontNameStrBold size:20];

self.desLabel.frame = CGRectMake(10,CGRectGetMaxY(self.titleLable.bounds)-20,self.blackeView.bounds.size.width/1.07, 90);

self.titleLable.hidden = YES;

}

}

-(void)yesOrNOButtonClcik:(UIButton*)buttonTag

{

if ([self.delegate respondsToSelector:@selector(popupView:ClickedButtonAtIndex:)]) {

[self.delegate popupView:self ClickedButtonAtIndex:buttonTag.tag];

}

[self removeSelf];

}

- (void)removeSelf

{

[UIView animateWithDuration:0.38 animations:^{

self.alpha = 0;

}completion:^(BOOL finished) {

[self removeFromSuperview];

}];

}

- (void)show

{

UIWindow *window = [UIApplication sharedApplication].keyWindow;

[window addSubview:self];

self.alpha = 0;

self.blackeView.transform = CGAffineTransformMakeScale(1.08, 1.08);

[UIView animateWithDuration:0.38 animations:^{

self.alpha = 1;

self.blackeView.transform = CGAffineTransformIdentity;

}];

}

@end

/**上面这个就是放在.m里面了*/

<PopupViewDelegate>

接下来你只需要在你要响应的点击事件里面去导入这个View的头文件和遵守它的代理实现代理方法就可以了

PopupView * popupV = [[PopupView alloc]initWithTitle:@"Are You?" message:@"你猜我我猜你猜我猜你猜我是谁！" cancelButtonTitle:@"Helvetica" okButtonTitles:@"OK" delegate:self];

[popupV show];

/**代理方法*/

- (void)popupView:(PopupView *)popupView ClickedButtonAtIndex:(NSInteger)buttonIndex{

if (popupView.tag == 1) {

NSLog(@"点击了取消按钮");

}else{

NSLog(@"点击了确认按钮");

}

}

好了一个自定义的弹出框就搞定了！