自定义弹出窗AlertView_窗是alert-优快云博客

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 = NSLineBreakByWordWrappin g;
_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 = @{NSParagraphStyleAttribut eName: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:UIControlEventTouchUpIns ide];
[_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 = NSLineBreakByWordWrappin g;
NSDictionary *attributes = @{NSFontAttributeName:font, NSParagraphStyleAttribut eName:paragraphStyle.copy};

CGSize size = [_title boundingRectWithSize:CGSizeMake(contentViewWidth - (MARGIN_LEFT_SMALL + MARGIN_RIGHT_SMALL + _iconImageView.frame.size.width + SPACE_SMALL), 2000)
options:NSStringDrawingUsesLineF ragmentOrigin
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, NSParagraphStyleAttribut eName:paragraphStyle.copy};

CGSize size = [_message boundingRectWithSize:CGSizeMake(contentViewWidth - (MARGIN_LEFT_LARGE + MARGIN_RIGHT_LARGE), 2000)
options:NSStringDrawingUsesLineF ragmentOrigin
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