A way of calling objc function from js in UIWebView.

1. iOS dev HACK!
JS ObjC
linluxiang@gmail.com

3. HTML

4. HTML
JS Objc

5. HTML
JS Objc
UIWebView

7. JS Global

8. JS Global
- (void)webView:(id)sender didClearWindowObject:(id)
windowObject forFrame:(WebFrame*)frame {

9. JS Global
- (void)webView:(id)sender didClearWindowObject:(id)
windowObject forFrame:(WebFrame*)frame {
! [windowObject setValue:localcall forKey:@"localcall"];

10. JS Global
- (void)webView:(id)sender didClearWindowObject:(id)
windowObject forFrame:(WebFrame*)frame {
! [windowObject setValue:localcall forKey:@"localcall"];

11. JS Global
- (void)webView:(id)sender didClearWindowObject:(id)
windowObject forFrame:(WebFrame*)frame {
! [windowObject setValue:localcall forKey:@"localcall"];
}

12. JS Global
- (void)webView:(id)sender didClearWindowObject:(id)
windowObject forFrame:(WebFrame*)frame {
! [windowObject setValue:localcall forKey:@"localcall"];
}
+ (BOOL)isSelectorExcludedFromWebScript:(SEL)aSelector

13. JS Global
- (void)webView:(id)sender didClearWindowObject:(id)
windowObject forFrame:(WebFrame*)frame {
! [windowObject setValue:localcall forKey:@"localcall"];
}
+ (BOOL)isSelectorExcludedFromWebScript:(SEL)aSelector
+ (BOOL)isKeyExcludedFromWebScript:(const char *)name

14. JS Global
- (void)webView:(id)sender didClearWindowObject:(id)
windowObject forFrame:(WebFrame*)frame {
! [windowObject setValue:localcall forKey:@"localcall"];
}
+ (BOOL)isSelectorExcludedFromWebScript:(SEL)aSelector
+ (BOOL)isKeyExcludedFromWebScript:(const char *)name

15. JS Global
- (void)webView:(id)sender didClearWindowObject:(id)
windowObject forFrame:(WebFrame*)frame {
! [windowObject setValue:localcall forKey:@"localcall"];
}
+ (BOOL)isSelectorExcludedFromWebScript:(SEL)aSelector
+ (BOOL)isKeyExcludedFromWebScript:(const char *)name

17. Apple

18. Apple
+ (BOOL)isSelectorExcludedFromWebScript:
(SEL)aSelector aSelector

24. + (BOOL)isKeyExcludedFromWebScript:
(const char *)name

25. + (BOOL)isKeyExcludedFromWebScript:
(const char *)name

26. + (BOOL)isKeyExcludedFromWebScript:
(const char *)name
JS

28. RPC

29. RPC
http://localcall/func_name?
argument=”a_json_string”

30. RPC
http://localcall/func_name?
argument=”a_json_string”

31. Ajax

32. Ajax
XMLHttpRequest

33. Ajax
XMLHttpRequest

34. Ajax
XMLHttpRequest
Cache

35. Ajax
XMLHttpRequest
Cache
- (NSCachedURLResponse *)cachedResponseForRequest:
(NSURLRequest *)request

36. Callback

37. Callback
window.location.href

38. Callback
window.location.href

39. Callback
window.location.href
- (BOOL)webView:(UIWebView *)webView2
shouldStartLoadWithRequest:(NSURLRequest *)request
navigationType:(UIWebViewNavigationType)
navigationType

40. Callback
window.location.href
- (BOOL)webView:(UIWebView *)webView2
shouldStartLoadWithRequest:(NSURLRequest *)request
navigationType:(UIWebViewNavigationType)
navigationType
[webview loadData]

41. Callback
window.location.href
- (BOOL)webView:(UIWebView *)webView2
shouldStartLoadWithRequest:(NSURLRequest *)request
navigationType:(UIWebViewNavigationType)
navigationType
[webview loadData]
- (NSString *)stringByEvaluatingJavaScriptFromString:
(NSString *)script;

42. Form
Iframe
Script
webview
cache

44. Read The F**king SourceCode.
https://github.com/linluxiang/
JavascriptCallObjCExample