UIWebView 自定义网页中的alert和confirm提示框风格

最新推荐文章于 2021-06-25 14:28:25 发布

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本文介绍如何通过Objective-C自定义iOS中UIWebView显示的JavaScript警告(alert)和确认(confirm)对话框样式。提供了具体的实现代码，包括.h和.m文件的内容。

UIWebView 自定义网页中的alert和confirm提示框风格

转载自： http://blog.sina.com.cn/s/blog_6796844601010nxj.html

#import <UIKit/UIKit.h>

@interface UIWebView (JavaScriptAlert)
-(void)webView:(UIWebView *)sender runJavaScriptAlertPanelWithMessage:(NSString *)message initiatedByFrame:(WebFrame *)frame;

-(BOOL)webView:(UIWebView *)sender runJavaScriptConfirmPanelWithMessage:(NSString *)message initiatedByFrame:(WebFrame *)frame;
@end

#import "UIWebView+JavaScriptAlert.h"

@implementation UIWebView (JavaScriptAlert)

static BOOL diagStat = NO;

-(void)webView:(UIWebView *)sender runJavaScriptAlertPanelWithMessage:(NSString *)message initiatedByFrame:(WebFrame *)frame{
    UIAlertView* dialogue = [[UIAlertView alloc]initWithTitle:nil message:message delegate:nil cancelButtonTitle:@"Okay" otherButtonTitles:nil, nil];
    [dialogue show];
    [dialogue autorelease];
}

-(BOOL)webView:(UIWebView *)sender runJavaScriptConfirmPanelWithMessage:(NSString *)message initiatedByFrame:(WebFrame *)frame{
    UIAlertView* dialogue = [[UIAlertView alloc] initWithTitle:nil message:message delegate:self cancelButtonTitle:NSLocalizedString(@"Okay", @"Okay") otherButtonTitles:NSLocalizedString(@"Cancel", @"Cancel"), nil];
    [dialogue show];
    while (dialogue.hidden==NO && dialogue.superview!=nil) {
        [[NSRunLoop mainRunLoop] runUntilDate:[NSDate dateWithTimeIntervalSinceNow:0.01f]];
    }
    [dialogue release];
    
    return diagStat;
}

-(void)alertView:(UIAlertView *)alertView clickedButtonAtIndex:(NSInteger)buttonIndex{
    if (buttonIndex==0) {
        diagStat=YES;
    }else if(buttonIndex==1){
        diagStat=NO;
    }
}
@end