iOS UIWebView custom alert style bullet box

Previously developed an app, because the company has written the web version of the content and the Android version of the app, I went in after the boss asked me to use the content of iOS directly, and do not need to build their own framework. I listen, laugh, this is not a uiwebview it? Simple!

But, TMD (o^o)! Things are not so simple, asked me to interact with the Web page, first encountered a custom Web page bullet frame problem, thought: Find the Web box to intercept, replace the box to write their own.

First, create the category of UIWebView Uiwebview+javascriptalert

1. Adding methods in. h

-(void) WebView: (UIWebView *) sender Runjavascriptalertpanelwithmessage: (NSString *) message Initiatedbyframe: (ID) frame;

2. Create a bullet box in. m and change the title

@implementation UIWebView (Javascriptalert)-(void) WebView: (UIWebView *) sender Runjavascriptalertpanelwithmessage: (NSString *) message initiatedbyframe: (ID) frame{    * Customalert = [[Uialertview alloc]initwithtitle:@ " you want to change the title "delegate: Nil Cancelbuttontitle:@ " OK "  Otherbuttontitles:nil, nil];    [Customalert show];    } @end

Second, the agent method in UIWebView

-(BOOL) WebView: (UIWebView *) WebView shouldstartloadwithrequest: (nsurlrequest *) Request Navigationtype: ( Uiwebviewnavigationtype) Navigationtype

Interception in

if ([Request.mainDocumentURL.relativePath isequaltostring:@ "/alert"]) {        [WebView Webview:webview runjavascriptalertpanelwithmessage:@ "123"  initiatedbyframe: Nil];                 return NO;    }

iOS UIWebView custom alert style bullet box