UIWebView中Html中用JS调用OC方法及OC执行JS代码

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转载 http://code4app.com/snippets/one/UIWebView中Html中用JS调用OC方法及OC执行JS代码/546d7ba6933bf03d0a8b4ccd

UIWebView中Html中用JS调用OC方法及OC执行JS代码

HTML代码：

<html>

<head>

<title>HTML中用JS调用OC方法</title>

[removed]

function openAlbum()

{

// 打开相册（openMyAlbum为OC中的方法）

[removed].href= 'ios://openMyAlbum';

}

function openCamera()

{

// 打开相机（openMyCamera为OC中的方法）

[removed].href= 'ios://openMyCamera';

}

[removed]

</head>

<body>

<br/>

</body>

</html>

OC代码：

#import "ViewController.h"

@interface ViewController()<UIWebViewDelegate>

@property (weak, nonatomic)IBOutlet UIWebView *webview;

- (IBAction)getTitle;

@end

@implementation ViewController

- (void)viewDidLoad

{

[superviewDidLoad];

NSURL*url = [[NSBundlemainBundle] URLForResource:@"test.html"withExtension:nil];

[self.webviewloadRequest:[NSURLRequestrequestWithURL:url]];

self.webview.delegate = self;

self.webview.dataDetectorTypes= UIDataDetectorTypeAll;

}

#pragma mark UIWebViewDelegate方法

/**

*开始加重请求拦截

-(BOOL)webView:(UIWebView*)webView shouldStartLoadWithRequest:(NSURLRequest*)request navigationType:(UIWebViewNavigationType)navigationType

{

NSString*urlstr = request.URL.absoluteString;

NSRangerange = [urlstr rangeOfString:@"ios://"];

if (range.length!=0) {

NSString*method = [urlstr substringFromIndex:(range.location+range.length)];

SEL selctor = NSSelectorFromString(method);

[selfperformSelector:selctor withObject:nil];

}

return YES;

}

/**

* OC执行JS代码

- (IBAction)getTitle {

[self.webviewstringByEvaluatingJavaScriptFromString:@"alert(document.title);"];

}

-(void)openMyAlbum

{

UIImagePickerController*vc = [[UIImagePickerController alloc]init];

vc.sourceType= UIImagePickerControllerSourceTypePhotoLibrary;

[selfpresentViewController:vc animated:YEScompletion:nil];

}

-(void)openMyCamera

{

UIImagePickerController*vc = [[UIImagePickerController alloc]init];

vc.sourceType= UIImagePickerControllerSourceTypeCamera;

[selfpresentViewController:vc animated:YEScompletion:nil];

}

@end

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