iOS开发-ios7 UIAlertView自定义

- 日理万妓 2022-09-20 12:45 209阅读 0赞

之前一个项目适配ios7之后，发现原先的UIAlertView无法正常显示。

后来发现ios7里面原生态的UIAlertView不支持自定义了。

然后就去github上找了下。发现了一个不错的第三方库。和我们之前的使用习惯差不多。

mark一下。

下面给个简单的示例。

# 1.导入文件。 #

![Center][]

将这两个文件加入我们的工程下。

# 2.添加头文件 #

在需要使用UIAlertView的地方,添加头文件。

\#import "CustomIOS7AlertView.h"

并且添加协议。

比如我的.h文件

#import <UIKit/UIKit.h>
    #import "CustomIOS7AlertView.h"
    
    @interface ViewController : UIViewController<CustomIOS7AlertViewDelegate>
    
    @end

# 3.添加UIAlertView #

先给出.m文件。

#import "ViewController.h"
    
    @interface ViewController ()
    
    @end
    
    @implementation ViewController
    
    - (void)viewDidLoad
    {
        [super viewDidLoad];
    
        // Just a subtle background color
        [self.view setBackgroundColor:[UIColor colorWithRed:0.8f green:0.8f blue:0.8f alpha:1.0f]];
    
        // A simple button to launch the demo
        UIButton *launchDialog = [UIButton buttonWithType:UIButtonTypeCustom];
        [launchDialog setFrame:CGRectMake(10, 30, self.view.bounds.size.width-20, 50)];
        [launchDialog addTarget:self action:@selector(launchDialog:) forControlEvents:UIControlEventTouchDown];
        [launchDialog setTitle:@"Launch Dialog" forState:UIControlStateNormal];
        [launchDialog setBackgroundColor:[UIColor whiteColor]];
        [launchDialog setTitleColor:[UIColor blueColor] forState:UIControlStateNormal];
        [launchDialog.layer setBorderWidth:0];
        [launchDialog.layer setCornerRadius:5];
        [self.view addSubview:launchDialog];
    }
    
    - (IBAction)launchDialog:(id)sender
    {
        // Here we need to pass a full frame
        CustomIOS7AlertView *alertView = [[CustomIOS7AlertView alloc] init];
    
        // Add some custom content to the alert view
        [alertView setContainerView:[self createDemoView]];
    
        // Modify the parameters
        [alertView setButtonTitles:[NSMutableArray arrayWithObjects:@"Close1", @"Close2", @"Close3", nil]];
        [alertView setDelegate:self];
        
        // You may use a Block, rather than a delegate.
        [alertView setOnButtonTouchUpInside:^(CustomIOS7AlertView *alertView, int buttonIndex) {
            NSLog(@"Block: Button at position %d is clicked on alertView %d.", buttonIndex, [alertView tag]);
            [alertView close];
        }];
        
        [alertView setUseMotionEffects:true];
    
        // And launch the dialog
        [alertView show];
    }
    
    - (void)customIOS7dialogButtonTouchUpInside: (CustomIOS7AlertView *)alertView clickedButtonAtIndex: (NSInteger)buttonIndex
    {
        NSLog(@"Delegate: Button at position %d is clicked on alertView %d.", buttonIndex, [alertView tag]);
        [alertView close];
    }
    
    - (UIView *)createDemoView
    {
        UIView *demoView = [[UIView alloc] initWithFrame:CGRectMake(0, 0, 290, 200)];
    
        UIImageView *imageView = [[UIImageView alloc] initWithFrame:CGRectMake(10, 10, 270, 180)];
        [imageView setImage:[UIImage imageNamed:@"demo"]];
        [demoView addSubview:imageView];
    
        return demoView;
    }
    
    @end

这里,通过一个button绑定弹出UIAlertView。 当然，你也可以在其他条件触发launchDialog方法。

然后UIAlertView载入自己定义的视图(createDemoView)。

另外,块内的setOnButtonTouchUpInside 和 单独的delegate customIOS7dialogButtonTouchUpInside方法都能响应我们的选择。

具体选择哪种方式因人而异。

[**下面给出例子程序下载链接：http://download.csdn.net/detail/hitwhylz/6857765**][http_download.csdn.net_detail_hitwhylz_6857765]

**学习的路上,与君共勉。**

[Center]: /images/20220828/95f4f2ae35f54245af1235bf6f540341.png
[http_download.csdn.net_detail_hitwhylz_6857765]: http://download.csdn.net/detail/hitwhylz/6857765