前言：

公司项目弹窗的地方比较多，弹窗的样式也有很多种，所以就根据项目里的多种弹窗样式，整合成一个可重复利用的全局弹窗，可自己手动再次自定义。

有多种样式：最简单的文字提示弹窗（有标题、详细信息，还有确定、取消按钮，这些皆可单独存在），首页一张大广告图片弹窗，有单选、多选（列表多选）、勾选弹窗，输入框弹窗（可以自己修改为几个输入框都行），TextView弹窗，还有图片和文字结合的说明弹窗，还有自定义弹窗（可以自行添加想要添加到弹窗上的视图）；弹窗右上角有关闭按钮，可以自行选择是否展示，等等功能自行探索.....

具体可以自己尝试，先说一下最简单的文字提示弹窗，如下图所示：

0D2259AD-FEAB-4F23-A50D-473C128987C4.png

部分具体实现如下：
PromptView文件：

- (nonnull instancetype)initWithTitle:(id)title
                              message:(id)message
                            imageName:(NSString *)imageName
                       preferredStyle:(PromptViewStyle)preferredStyle {
    self = [super initWithFrame:CGRectMake(0, 0, SCREEN_WIDTH, SCREEN_HEIGHT)];
    if (self) {
        ///dissmiss监听
        [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(dimiss) name:DissmissPromptViewNotificationKey object:nil];
        
        self.backgroundColor = [UIColor clearColor];
        self.style = preferredStyle;
        self.maxLength = ULONG_MAX;
        self.titleLabelHasClickableText = NO;
        self.tapBackgroundHide = YES;
        self.isFilterWihtespace = YES;
        self.isAllowInputWihtespace = YES;
        self.spacingBetweenCell = 0;
        
        CGFloat contentWidth = FIT_LENGTH_PT(305);
        self.contentHeight = TopSpace + BottomSpace;
        CGFloat contentHeight = 0;
        
        WS(weakSelf);
        
        UIView *contentView = [[UIView alloc] init];
//        [self.contentView addGestureRecognizer:tap];
        contentView.backgroundColor = [UIColor whiteColor];
        contentView.layer.cornerRadius = FIT_LENGTH_PT(15);
        [self addSubview:contentView];
        self.contentView = contentView;
        [self.contentView mas_makeConstraints:^(MASConstraintMaker *make) {
            make.width.mas_equalTo(contentWidth);
            make.height.mas_equalTo(self.contentHeight);
            make.center.equalTo(weakSelf).offset(0);
        }];
}
- (void)addTitleLabelWithTitle:(id)title {
    WS(weakSelf);
    CGFloat textLeftRightSpace = FIT_LENGTH_PT(40);
    UILabel *titleLabel = nil;
    if (![CommonUtils isEmptyString:title]||![CommonUtils isEmptyAttributedString:title]) {
        titleLabel = [[UILabel alloc] init];
        titleLabel.userInteractionEnabled = YES;
        titleLabel.font = [UIFont systemFontOfSize:FIT_LENGTH_PT(16)];
        titleLabel.textColor = kProjectTextColor;
        titleLabel.numberOfLines = 0;
        titleLabel.textAlignment = NSTextAlignmentCenter;
        NSAttributedString * attrText = [title isKindOfClass:[NSString class]]?[self attributedStringWithLabel:titleLabel text:title lineSpacing:5]:title;
        if ([attrText isKindOfClass:[NSMutableAttributedString class]]) {
            NSMutableAttributedString *mAttr = (NSMutableAttributedString *)attrText;
            mAttr.lineSpacing = 5;
        }
        titleLabel.attributedText = attrText;
        [self.contentView addSubview:titleLabel];
        self.titleLabel = titleLabel;
        [titleLabel mas_makeConstraints:^(MASConstraintMaker *make) {
            make.left.equalTo(weakSelf.contentView).offset(textLeftRightSpace);
            make.right.equalTo(weakSelf.contentView).offset(-textLeftRightSpace);
            if (self.style == PromptViewStyleImageText) {
                make.top.equalTo(weakSelf.imageView.mas_bottom).offset(14);
            } else {
                make.top.equalTo(weakSelf.contentView).offset(TopSpace);
            }
        }];
        [self.contentView layoutIfNeeded];
        CGFloat titleTextHeight = titleLabel.size.height;
        CGFloat contentHeight = 0;
        if (self.style == PromptViewStyleImageText) {
            contentHeight += 14;
        }
        contentHeight += titleTextHeight;
        [self updateContentHeight:contentHeight];
    }
}
- (void)addMessageLabelWithMessage:(id)message {
    WS(weakSelf);
    CGFloat textLeftRightSpace = FIT_LENGTH_PT(40);
    if (![CommonUtils isEmptyString:message]||![CommonUtils isEmptyAttributedString:message]) {
        UILabel *messageLabel = [[UILabel alloc] init];
        messageLabel.font = [UIFont systemFontOfSize:FIT_LENGTH_PT(15)];
        messageLabel.textColor = kProjectLightTextColor;
        messageLabel.numberOfLines = 0;
        messageLabel.textAlignment = NSTextAlignmentCenter;
        NSAttributedString * attrText = [message isKindOfClass:[NSString class]]?[self attributedStringWithLabel:messageLabel text:message lineSpacing:5]:message;
        if ([attrText isKindOfClass:[NSMutableAttributedString class]]) {
            NSMutableAttributedString *mAttr = (NSMutableAttributedString *)attrText;
            mAttr.lineSpacing = 5;
        }
        messageLabel.attributedText = attrText;
        [self.contentView addSubview:messageLabel];
        self.messageLabel = messageLabel;
        [messageLabel mas_makeConstraints:^(MASConstraintMaker *make) {
            make.left.equalTo(weakSelf.contentView).offset(textLeftRightSpace);
            make.right.equalTo(weakSelf.contentView).offset(-textLeftRightSpace);
            if ([CommonUtils isNullObject:weakSelf.titleLabel]) {
                if (self.style == PromptViewStyleImageText) {
                    make.top.equalTo(weakSelf.imageView.mas_bottom).offset(8);
                } else {
                    make.top.equalTo(weakSelf.contentView).offset(TopSpace);
                }
            } else {
                make.top.equalTo(weakSelf.titleLabel.mas_bottom).offset(5);
            }
        }];
        [self.contentView layoutIfNeeded];
        CGFloat messageTextHeight = messageLabel.size.height;
        CGFloat contentHeight = 0;
        contentHeight += (messageTextHeight + 5);
        [self updateContentHeight:contentHeight];
    }
}

PromptViewAction文件：

@interface PromptViewAction ()
@property(nonatomic, copy, readwrite) NSString *title;
@property(nonatomic, assign, readwrite) PromptViewActionStyle style;
@property(nonatomic, copy) void (^handler)(PromptViewAction * _Nonnull action);
@end

@implementation PromptViewAction

+ (instancetype)actionWithTitle:(NSString *)title style:(PromptViewActionStyle)style handler:(void (^)(PromptViewAction * _Nonnull))handler {
    PromptViewAction *action = [[self alloc] init];
    action.title = title;
    action.style = style;
    action.handler = handler;
    return action;
}

- (nonnull instancetype)init {
    self = [super init];
    if (self) {
        self.tapHide = YES;
        _button = [[UIButton alloc] init];
        [self.button setBackgroundImage:[UIImage imageWithColor:KProjectF6F8F9GrayBackGroundColor] forState:UIControlStateDisabled];
        [self.button setTitleColor:kProjectLightTextColor forState:UIControlStateDisabled];
        self.button.titleLabel.font = [UIFont systemFontOfSize:FIT_LENGTH_PT(17)];
        self.button.layer.cornerRadius = 41/2.0;
        self.button.layer.masksToBounds = YES;
        [self.button addTarget:self action:@selector(handleAlertActionEvent:) forControlEvents:UIControlEventTouchUpInside];
    }
    return self;
}

- (void)handleAlertActionEvent:(id)sender {
    if (self.isTapHide) {
        [[NSNotificationCenter defaultCenter] postNotificationName:DissmissPromptViewNotificationKey object:nil];
    }
    if (self.handler) {
        self.handler(self);
    }
}

- (void)setTitle:(NSString *)title {
    _title = title;
    [self.button setTitle:title forState:UIControlStateNormal];
}

- (void)setStyle:(PromptViewActionStyle)style {
    _style = style;
    if (style == PromptViewActionStyleDefault) {
        [self.button setBackgroundImage:[UIImage imageWithColor:kProjectColorNewGreen] forState:UIControlStateNormal];
        [self.button setTitleColor:[UIColor whiteColor] forState:UIControlStateNormal];
    } else if (style == PromptViewActionStyleCancel) {
        [self.button setBackgroundImage:[UIImage imageWithColor:KProjectF6F8F9GrayBackGroundColor] forState:UIControlStateNormal];
        [self.button setTitleColor:kProjectLightTextColor forState:UIControlStateNormal];
    } else {
        [self.button setBackgroundImage:[UIImage imageWithColor:kProjectButtonRedColor] forState:UIControlStateNormal];
        [self.button setTitleColor:[UIColor whiteColor] forState:UIControlStateNormal];
    }
}

- (void)setEnabled:(BOOL)enabled {
    self.button.enabled = enabled;
}

- (void)setTapHide:(BOOL)tapHide {
    _tapHide = tapHide;
}

@end

具体代码看这里