自定义弹出窗AlertView

置顶 于 2017-05-13 18:11:17 发布
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CC 4.0 BY-SA版权
分类专栏： iOS自定义组件封装
版权声明：本文为博主原创文章，遵循 CC 4.0 BY-SA 版权协议，转载请附上原文出处链接和本声明。
本文链接：https://blog.youkuaiyun.com/super_ZJ_iOS/article/details/71859545
本文介绍了一个自定义的 iOS 弹窗视图组件 RMZAlertView，该组件支持设置标题、图标、消息内容及按钮，并提供了丰富的自定义选项。

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//
//  RMZAlertView.h
//  ProjectManageEx
//
//  Created by zhangjian on 16/7/29.
//  Copyright © 2016年 zhangjian. All rights reserved.
//

#import

@protocol RMZAlertViewDelegate;

@interface RMZAlertView : UIView
@property (strong, nonatomic) UIView *contentView;
@property (strong, nonatomic) UIImage *icon;
@property (strong, nonatomic) NSString *title;
@property (strong, nonatomic) NSString *message;
@property (weak, nonatomic) id delegate;


@property (nonatomic) BOOL afterClickIsHidden;


- (instancetype)initWithTitle:(NSString *)title icon:(UIImage *)icon message:(NSString *)message delegate:(id)delegate buttonTitles:(NSString *)buttonTitles, ... NS_REQUIRES_NIL_TERMINATION;


- (void)show;

- (void)hide;

- (void)setTitleColor:(UIColor *)color fontSize:(CGFloat)size;

- (void)setMessageColor:(UIColor *)color fontSize:(CGFloat)size;

- (void)setButtonTitleColor:(UIColor *)color fontSize:(CGFloat)size atIndex:(NSInteger)index;

- (void)setHeaderLineColor:(UIColor *)color ;

@end

@protocol RMZAlertViewDelegate

- (void)alertView:(RMZAlertView *)alertView clickedButAtIndex:(NSInteger)buttonIndex;

@end


//
//  RMZAlertView.m
//  ProjectManageEx
//
//  Created by mac on 16/7/29.
//  Copyright © 2016年 mobei. All rights reserved.
//

#import "RMZAlertView.h"

#define BUTTON_FONT_SIZE 16
#define MARGIN_TOP 20
#define MARGIN_LEFT_LARGE 30
#define MARGIN_LEFT_SMALL 15
#define MARGIN_RIGHT_LARGE 30
#define MARGIN_RIGHT_SMALL 15
#define SPACE_LARGE 20
#define SPACE_SMALL 5
#define MESSAGE_LINE_SPACE 5

@interface RMZAlertView ()

@property (strong, nonatomic) UIView *backgroundView;
@property (strong, nonatomic) UIView *titleView;
@property (strong, nonatomic) UIView *headerLineView;
@property (strong, nonatomic) UIImageView *iconImageView;
@property (strong, nonatomic) UILabel *titleLabel;
@property (strong, nonatomic) UILabel *messageLabel;

@property (strong, nonatomic) NSMutableArray *buttonArray;
@property (strong, nonatomic) NSMutableArray *buttonTitleArray;

@end

CGFloat contentViewWidth;
CGFloat contentViewHeight;

@implementation RMZAlertView


- (instancetype)init {
    if (self = [super initWithFrame:[UIScreen mainScreen].bounds]) {
        self.backgroundColor = [UIColor clearColor];
       
        _backgroundView = [[UIView alloc] initWithFrame:self.frame];
        _backgroundView.backgroundColor = [UIColor blackColor];
        [self addSubview:_backgroundView];
        _backgroundView.userInteractionEnabled = YES;
        UITapGestureRecognizer *tapGesture = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(tappedCancel)];
        [_backgroundView addGestureRecognizer:tapGesture];
    }
    return self;
}
//普通及带图标的alert
- (instancetype)initWithTitle:(NSString *)title icon:(UIImage *)icon message:(NSString *)message delegate:(id)delegate buttonTitles:(NSString *)buttonTitles, ... {
    if (self = [super initWithFrame:[UIScreen mainScreen].bounds]) {
        _icon = icon;
        _title = title;
        _message = message;
        _delegate = delegate;
        _buttonArray = [NSMutableArray array];
        _buttonTitleArray = [NSMutableArray array];
        self.afterClickIsHidden = YES;
       
        va_list args;
        va_start(args, buttonTitles);
        if (buttonTitles)
        {
            [_buttonTitleArray addObject:buttonTitles];
            while (1)
            {
                NSString *  otherButtonTitle = va_arg(args, NSString *);
                if(otherButtonTitle == nil) {
                    break;
                } else {
                    [_buttonTitleArray addObject:otherButtonTitle];
                }
            }
        }
        va_end(args);
       
        self.backgroundColor = [UIColor clearColor];
       
        _backgroundView = [[UIView alloc] initWithFrame:self.frame];
        _backgroundView.backgroundColor = [UIColor blackColor];
        [self addSubview:_backgroundView];
        [self initContentView];
    }
    return self;
}

- (void)setContentView:(UIView *)contentView {
    _contentView = contentView;
    _contentView.center = self.center;
    [self addSubview:_contentView];
}

- (void)setTitle:(NSString *)title {
    _title = title;
    [self initContentView];
}

- (void)setIcon:(UIImage *)icon {
    _icon = icon;
    [self initContentView];
}

- (void)setMessage:(NSString *)message {
    _message = message;
    [self initContentView];
}


- (void)initContentView {
    contentViewWidth = 250 * self.frame.size.width / 320;
    contentViewHeight = MARGIN_TOP;
   
    _contentView = [[UIView alloc] init];
    _contentView.backgroundColor = [UIColor whiteColor];
    _contentView.layer.cornerRadius = 5.0;
    _contentView.layer.masksToBounds = YES;
   
    [self initTitleAndIcon];
    [self initMessage];
    [self initAllButtons];
   
    _contentView.frame = CGRectMake(0, 0, contentViewWidth, contentViewHeight);
    _contentView.center = self.center;
    [self addSubview:_contentView];
}

- (void)initTitleAndIcon {
    _titleView = [[UIView alloc] init];
    if (_icon != nil) {
        _iconImageView = [[UIImageView alloc] init];
        _iconImageView.image = _icon;
        _iconImageView.frame = CGRectMake(0, 0, 20, 20);
        [_titleView addSubview:_iconImageView];
    }
   
    CGSize titleSize = [self getTitleSize];
    if (_title != nil && ![_title isEqualToString:@""]) {
        _titleLabel = [[UILabel alloc] init];
        _titleLabel.text = _title;
        _titleLabel.textColor = kColor(28, 28, 28, 1.0);
        _titleLabel.textAlignment = NSTextAlignmentCenter;
        _titleLabel.font = [UIFont systemFontOfSize:18.0f];
        _titleLabel.numberOfLines = 0;
        _titleLabel.lineBreakMode = NSLineBreakByWordWrapping;
        _titleLabel.frame = CGRectMake(MaxX(_iconImageView) + SPACE_SMALL, 1, titleSize.width, titleSize.height);
        [_titleView addSubview:_titleLabel];
    }
   
    _titleView.frame = CGRectMake(0, MARGIN_TOP, _iconImageView.frame.size.width + SPACE_SMALL + titleSize.width, MAX(_iconImageView.frame.size.height, titleSize.height));
    _titleView.center = CGPointMake(contentViewWidth / 2, MARGIN_TOP + _titleView.frame.size.height / 2);
    [_contentView addSubview:_titleView];
   
    _headerLineView = [[UIView alloc]initWithFrame:CGRectMake(0, MaxY(_titleView)+ SPACE_SMALL, contentViewWidth, kLineHeight*2)];
    _headerLineView.backgroundColor = kGrayLineColor;
    [_contentView addSubview:_headerLineView];
   
    contentViewHeight += HEIGHT(_titleView)+HEIGHT(_headerLineView);
}



- (void)initMessage {
    if (_message != nil) {
        _messageLabel = [[UILabel alloc] init];
        _messageLabel.text = _message;
        _messageLabel.textColor = kColor(120, 120, 120, 1.0);
        _messageLabel.numberOfLines = 0;
        _messageLabel.font = [UIFont systemFontOfSize:BUTTON_FONT_SIZE];
       
        NSMutableParagraphStyle *paragraphStyle = [[NSMutableParagraphStyle alloc]init];
        paragraphStyle.lineSpacing = MESSAGE_LINE_SPACE;
        NSDictionary *attributes = @{NSParagraphStyleAttributeName:paragraphStyle};
        _messageLabel.attributedText = [[NSAttributedString alloc]initWithString:_message attributes:attributes];
        _messageLabel.textAlignment = NSTextAlignmentCenter;
       
        CGSize messageSize = [self getMessageSize];
        _messageLabel.frame = CGRectMake(MARGIN_LEFT_LARGE, MaxY(_headerLineView) + SPACE_LARGE, MAX(contentViewWidth - MARGIN_LEFT_LARGE - MARGIN_RIGHT_LARGE, messageSize.width), messageSize.height);
        [_contentView addSubview:_messageLabel];
        contentViewHeight += SPACE_LARGE + _messageLabel.frame.size.height;
    }
}


- (void)initAllButtons {
    if (_buttonTitleArray.count > 0) {
        contentViewHeight += SPACE_LARGE + 45;
        UIView *horizonSperatorView = [[UIView alloc] initWithFrame:CGRectMake(0, MaxY(_messageLabel) + SPACE_LARGE, contentViewWidth, kLineHeight)];
        horizonSperatorView.backgroundColor = kGrayLineColor;
        [_contentView addSubview:horizonSperatorView];
       
        CGFloat buttonWidth = contentViewWidth / _buttonTitleArray.count;
        for (NSString *buttonTitle in _buttonTitleArray) {
            NSInteger index = [_buttonTitleArray indexOfObject:buttonTitle];
            UIButton *button = [[UIButton alloc] initWithFrame:CGRectMake(index * buttonWidth, MaxY(horizonSperatorView), buttonWidth, 44)];
            button.titleLabel.font = [UIFont systemFontOfSize:BUTTON_FONT_SIZE];
            [button setTitle:buttonTitle forState:UIControlStateNormal];
            [button setTitleColor:kColor(70, 130, 180, 1.0) forState:UIControlStateNormal];
            [button addTarget:self action:@selector(buttonWithPressed:) forControlEvents:UIControlEventTouchUpInside];
            [_buttonArray addObject:button];
            [_contentView addSubview:button];
           
            if (index < _buttonTitleArray.count - 1) {
                UIView *verticalSeperatorView = [[UIView alloc] initWithFrame:CGRectMake(MaxX(button), button.frame.origin.y, kLineHeight, button.frame.size.height)];
                verticalSeperatorView.backgroundColor = kGrayLineColor;
                [_contentView addSubview:verticalSeperatorView];
            }
        }
    }
}

- (CGSize)getTitleSize {
    UIFont *font = [UIFont systemFontOfSize:18];
   
    NSMutableParagraphStyle *paragraphStyle = [[NSMutableParagraphStyle alloc] init];
    paragraphStyle.lineBreakMode = NSLineBreakByWordWrapping;
    NSDictionary *attributes = @{NSFontAttributeName:font, NSParagraphStyleAttributeName:paragraphStyle.copy};
   
    CGSize size = [_title boundingRectWithSize:CGSizeMake(contentViewWidth - (MARGIN_LEFT_SMALL + MARGIN_RIGHT_SMALL + _iconImageView.frame.size.width + SPACE_SMALL), 2000)
                                       options:NSStringDrawingUsesLineFragmentOrigin
                                    attributes:attributes context:nil].size;
   
    size.width = ceil(size.width);
    size.height = ceil(size.height);
   
    return size;
}

- (CGSize)getMessageSize {
    UIFont *font = [UIFont systemFontOfSize:BUTTON_FONT_SIZE];
   
    NSMutableParagraphStyle *paragraphStyle = [[NSMutableParagraphStyle alloc] init];
    paragraphStyle.lineSpacing = MESSAGE_LINE_SPACE;
    NSDictionary *attributes = @{NSFontAttributeName:font, NSParagraphStyleAttributeName:paragraphStyle.copy};
   
    CGSize size = [_message boundingRectWithSize:CGSizeMake(contentViewWidth - (MARGIN_LEFT_LARGE + MARGIN_RIGHT_LARGE), 2000)
                                         options:NSStringDrawingUsesLineFragmentOrigin
                                      attributes:attributes context:nil].size;
   
    size.width = ceil(size.width);
    size.height = ceil(size.height);
   
    return size;
}

- (void)buttonWithPressed:(UIButton *)button {
    if (_delegate && [_delegate respondsToSelector:@selector(alertView:clickedButAtIndex:)]) {
        NSInteger index = [_buttonTitleArray indexOfObject:button.titleLabel.text];
        [_delegate alertView:self clickedButAtIndex:index];
    }
    if (self.afterClickIsHidden) {
        [self hide];
    }
}

- (void)show {
    //    UIWindow *window = [[UIApplication sharedApplication] keyWindow];
    //    NSArray *windowViews = [window subviews];
    //    if(windowViews && [windowViews count] > 0){
    //        UIView *subView = [windowViews objectAtIndex:[windowViews count]-1];
    //        for(UIView *aSubView in subView.subviews)
    //        {
    //            [aSubView.layer removeAllAnimations];
    //        }
    //        [subView addSubview:self];
    //        [self showBackground];
    //        [self showAlertAnimation];
    //    }
    UIWindow *window = [[UIApplication sharedApplication].windows objectAtIndex:1];
    [window addSubview:self];
    [self showBackground];
    [self showAlertAnimation];
}

- (void)hide {
    _contentView.hidden = YES;
    [self hideAlertAnimation];
    [self removeFromSuperview];
}

- (void)setTitleColor:(UIColor *)color fontSize:(CGFloat)size {
    if (color != nil) {
        _titleLabel.textColor = color;
    }
   
    if (size > 0) {
        _titleLabel.font = [UIFont systemFontOfSize:size];
    }
}

- (void)setMessageColor:(UIColor *)color fontSize:(CGFloat)size {
    if (color != nil) {
        _messageLabel.textColor = color;
    }
   
    if (size > 0) {
        _messageLabel.font = [UIFont systemFontOfSize:size];
    }
}
- (void)setHeaderLineColor:(UIColor *)color{
    if (color != nil) {
        _headerLineView.backgroundColor = color;
    }
}

- (void)setButtonTitleColor:(UIColor *)color fontSize:(CGFloat)size atIndex:(NSInteger)index {
    UIButton *button = _buttonArray[index];
    if (color != nil) {
        [button setTitleColor:color forState:UIControlStateNormal];
    }
   
    if (size > 0) {
        button.titleLabel.font = [UIFont systemFontOfSize:size];
    }
}

- (void)showBackground
{
    _backgroundView.alpha = 0;
    [UIView beginAnimations:@"fadeIn" context:nil];
    [UIView setAnimationDuration:0.35];
    _backgroundView.alpha = 0.6;
    [UIView commitAnimations];
}

-(void)showAlertAnimation
{
    CAKeyframeAnimation * animation;
    animation = [CAKeyframeAnimation animationWithKeyPath:@"transform"];
    animation.duration = 0.30;
    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, 1.0)]];
    [values addObject:[NSValue valueWithCATransform3D:CATransform3DMakeScale(1.0, 1.0, 1.0)]];
    animation.values = values;
    [_contentView.layer addAnimation:animation forKey:nil];
}

- (void)hideAlertAnimation {
    [UIView beginAnimations:@"fadeIn" context:nil];
    [UIView setAnimationDuration:0.35];
    _backgroundView.alpha = 0.0;
    [UIView commitAnimations];
}

- (void)tappedCancel
{
    [self hide];
}


@end

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