使用工厂方法创建2种类型的自定义AlertView。
效果图：
类似系统的AlertView
竖直菜单栏
在.h文件中实现：
#import <Foundation/Foundation.h>
#import <UIKit/UIKit.h>
@protocol OZAlertViewDelegate <NSObject>
@optional
// 点击按钮下标时传递参数
- (void)didSelectVerticalAlertButton:(NSString *)title;
- (void)didSelectHorizontalAlertButton:(NSString *)title;
@end
@interface OZAlertView : NSObject
@property (nonatomic,weak) id <OZAlertViewDelegate> delegate;
/**
*单例
*/
+ (instancetype)shareInstance;
/**
*快速竖直创建提示框
*/
- (UIView *)quickVerticalAlertViewWithArray:(NSArray *)array;
/**
*快速横向创建提示框
*/
- (UIView *)quickHorizontalAlertViewTitle:(NSString *)title Content:(NSString *)content ButtonTitles:(NSArray *)buttonTitles;
@end
在.m文件中实现
#import "OZAlertView.h"
#import "OZHelper.h"
@implementation OZAlertView
+ (instancetype)shareInstance {
static OZAlertView *alert;
static dispatch_once_t onceToken;
dispatch_once(&onceToken, ^{
alert = [[OZAlertView alloc] init];
});
return alert;
}
- (UIView *)quickVerticalAlertViewWithArray:(NSArray *)array {
UIView *groundView = [[UIView alloc] initWithFrame:[[UIScreen mainScreen] bounds]];
groundView.alpha = 0;
groundView.hidden = YES;
groundView.backgroundColor = [UIColor clearColor];
UIView *backgroundView = [[UIView alloc] initWithFrame:[[UIScreen mainScreen] bounds]];
backgroundView.backgroundColor = [UIColor blackColor];
backgroundView.alpha = 0.5;
[groundView addSubview:backgroundView];
CGFloat buttonH = 61;
CGFloat buttonW = 250;
// 通过数组长度创建view的高
UIView *alert = [[UIView alloc] initWithFrame:CGRectMake(0, 0,buttonW, array.count*buttonH)];
// 切圆角
alert.layer.masksToBounds = YES;
alert.layer.cornerRadius = 10;
alert.center = groundView.center;
[groundView addSubview:alert];
for (int i = 0; i < array.count; i++) {
// 因为有一条分割线 所以最下面是一层view
UIView *view = [[UIView alloc] initWithFrame:CGRectMake(0, i*buttonH, buttonW, buttonH)];
view.backgroundColor = [UIColor whiteColor];
//创建button
UIButton *button = [UIButton buttonWithType:UIButtonTypeSystem];
button.frame = CGRectMake(0, 0, buttonW, buttonH);
[button setTitle:array[i] forState:UIControlStateNormal];
button.titleLabel.font = [UIFont systemFontOfSize:17];
[button addTarget:self action:@selector(verticalAlertAction:) forControlEvents:UIControlEventTouchUpInside];
[view addSubview:button];
CGFloat height = [OZHelper heightOfString:array[0] font:[UIFont systemFontOfSize:17] width:buttonW - 20];
//设置修改Frame
if (height > buttonH) {
if (i == 0) {
button.frame = CGRectMake(10, 10, buttonW - 20, height);
CGRect viewFrame = view.frame;
viewFrame.size.height = 20 + height;
view.frame = viewFrame;
CGRect alertFrame = alert.frame;
alertFrame.size.height += view.frame.size.height - buttonH;
alert.frame = alertFrame;
}
else
{
CGRect viewFrame = view.frame;
viewFrame.origin.y = 20 + height;
view.frame = viewFrame;
}
}
//设置第一行不能点击
if (i == 0) {
button.userInteractionEnabled = NO;
button.titleLabel.numberOfLines = 0;
}
//设置颜色分割线
if (i == array.count - 1) {
button.tintColor = [UIColor whiteColor];
// 背景
view.backgroundColor = [UIColor purpleColor];
}
else {
button.tintColor = [UIColor purpleColor];
// 分割线
// 如果不是最后一行
UIView *lineView = [[UIView alloc] initWithFrame:CGRectMake(0, 60, buttonW, 1)];
lineView.backgroundColor = [UIColor purpleColor];
[view addSubview:lineView];
}
[alert addSubview:view];
}
return groundView;
}
- (UIView *)quickHorizontalAlertViewTitle:(NSString *)title Content:(NSString *)content ButtonTitles:(NSArray *)buttonTitles
{
UIView *groundView = [[UIView alloc] initWithFrame:[[UIScreen mainScreen] bounds]];
groundView.alpha = 0;
groundView.hidden = YES;
groundView.backgroundColor = [UIColor clearColor];
UIView *backgroundView = [[UIView alloc] initWithFrame:[[UIScreen mainScreen] bounds]];
backgroundView.backgroundColor = [UIColor blackColor];
backgroundView.alpha = 0.5;
[groundView addSubview:backgroundView];
CGFloat buttonH = 61;
CGFloat buttonW = 125;
CGFloat height = [OZHelper heightOfString:content font:[UIFont systemFontOfSize:15] width:2*buttonW - 20] + 23;
// 通过数组设置创建view的高
CGFloat alertHeight = height > buttonH ? 2*buttonH + height - buttonH + 20 : 2*buttonH;
UIView *alert = [[UIView alloc] initWithFrame:CGRectMake(0, 0,2*buttonW, alertHeight)];
// 设置圆角
alert.layer.masksToBounds = YES;
alert.layer.cornerRadius = 10;
alert.center = groundView.center;
[groundView addSubview:alert];
for (int i = 0; i < 2; i++) {
// 因为有一条分割线 所以最下面是一层view
UIView *view = [[UIView alloc] init];
view.backgroundColor = [UIColor whiteColor];
if (i == 0) {
UILabel *titleLabel = [[UILabel alloc] initWithFrame:CGRectMake(10, 0, 2*buttonW - 20, 20)];
titleLabel.text = title;
titleLabel.textAlignment = NSTextAlignmentCenter;
titleLabel.textColor = [UIColor purpleColor];
titleLabel.font = [UIFont boldSystemFontOfSize:17];
titleLabel.backgroundColor = [UIColor whiteColor];
[view addSubview:titleLabel];
UILabel *contentLabel = [[UILabel alloc] initWithFrame:CGRectMake(10, CGRectGetMaxY(titleLabel.frame), 2*buttonW - 20, height)];
contentLabel.text = content;
contentLabel.font = [UIFont systemFontOfSize:15];
contentLabel.textColor = [UIColor purpleColor];
contentLabel.numberOfLines = 0;
contentLabel.backgroundColor = [UIColor whiteColor];
[view addSubview:contentLabel];
view.frame = CGRectMake(0, 0, 2*buttonW, CGRectGetMaxY(contentLabel.frame)+3);
}
else
{
for (int j = 0; j < buttonTitles.count; j++) {
//创建button
UIButton *button = [UIButton buttonWithType:UIButtonTypeSystem];
button.frame = CGRectMake(j*buttonW, 0, buttonW, buttonH);
[button setTitle:buttonTitles[j] forState:UIControlStateNormal];
button.titleLabel.font = [UIFont systemFontOfSize:17];
[button addTarget:self action:@selector(horizontalAlertAction:) forControlEvents:UIControlEventTouchUpInside];
[view addSubview:button];
// 这里可以根据传值改变状态
if (j == 0) {
button.tintColor = [UIColor whiteColor];
button.backgroundColor = [UIColor purpleColor];
}
else {
button.tintColor = [UIColor purpleColor];
// 分割线
UIView *lineView = [[UIView alloc] initWithFrame:CGRectMake(buttonW, 0, buttonW, 1)];
lineView.backgroundColor = [UIColor purpleColor];
[view addSubview:lineView];
}
}
view.frame = CGRectMake(0, height>buttonH?height:buttonH, 2*buttonW, buttonH);
}
[alert addSubview:view];
}
return groundView;
}
- (void)verticalAlertAction:(UIButton *)sender
{
if ([self.delegate respondsToSelector:@selector(didSelectVerticalAlertButton:)]) {
[self.delegate didSelectVerticalAlertButton:sender.currentTitle];
}
}
- (void)horizontalAlertAction:(UIButton *)sender
{
if ([self.delegate respondsToSelector:@selector(didSelectHorizontalAlertButton:)]) {
[self.delegate didSelectHorizontalAlertButton:sender.currentTitle];
}
}
@end
然后在ViewController中实现:
#import "ViewController.h"
#import "OZAlertView.h"
static NSString *const Title = @"Hellow World~";
static NSString *const content = @"Hellow World~Hellow World~";
static NSString *const btnTitle1 = @"btn1";
static NSString *const btnTitle2 = @"btn2";
static NSString *const btnTitle3 = @"btn3";
@interface ViewController () <OZAlertViewDelegate>
@property (nonatomic, strong) UIView *alert;
@end
@implementation ViewController
- (void)viewDidLoad {
[super viewDidLoad];
// Do any additional setup after loading the view, typically from a nib.
//[self createOZHorizontalAlertView];
[self createOZVerticalAlertView];
[self alertViewShow];
}
- (void)didReceiveMemoryWarning {
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}
#pragma mark - OZAlertViewDelegate
- (void)didSelectHorizontalAlertButton:(NSString *)title {
[self alertViewHide];
}
- (void)didSelectVerticalAlertButton:(NSString *)title {
[self alertViewHide];
}
#pragma mark -
- (void)createOZHorizontalAlertView {
self.alert = [[OZAlertView shareInstance] quickHorizontalAlertViewTitle:Title
Content:content
ButtonTitles:@[btnTitle1,btnTitle2]];
[self.view addSubview:self.alert];
}
- (void)createOZVerticalAlertView {
self.alert = [[OZAlertView shareInstance] quickVerticalAlertViewWithArray:@[content,btnTitle1,btnTitle2,btnTitle3]];
[self.view addSubview:self.alert];
}
- (void)alertViewShow {
self.alert.hidden = NO;
[UIView animateWithDuration:0.35 animations:^{
self.alert.alpha = 1;
}];
}
- (void)alertViewHide {
[UIView animateWithDuration:0.35 animations:^{
self.alert.alpha = 0;
} completion:^(BOOL finished) {
self.alert.hidden = YES;
[self.alert removeFromSuperview];
}];
}
@end
