如何在webview中显示图像? [英] How to show image in webview?
本文介绍了如何在webview中显示图像?的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
我试图在UIWebView中显示图像.但是我不知道为什么我的图像没有显示在UIWebVeiw中.这是我的代码.
I am trying to show image in UIWebView.But I don't know why my image is not shown in UIWebVeiw. Here is my code.
-(void)pInterest
{
UIImage *myImage;
myImage=imgView.image;
WebViewController *webViewController = [[WebViewController alloc] initWithNibName:@"WebViewController" bundle:nil];
webViewController.mypimage = myImage;
[[[[UIApplication sharedApplication] keyWindow] rootViewController] presentModalViewController:webViewController animated:YES];
}
现在将图像传递到WebViewController之后，我的WebViewController代码是
Now after passing image to WebViewController my WebViewController code is,
- (void)viewDidLoad
{
NSData* data = UIImageJPEGRepresentation(mypimage, 1.0f);
[Base64 initialize];
NSString *strEncoded = [Base64 encode:data];
NSMutableString *htmlString = [[NSMutableString alloc] initWithCapacity:1000];
[htmlString appendFormat:@"<html> <body>"];
[htmlString appendFormat:@"<p align=\"center\"><a href=%@ class=\"pin-it-button\" count-layout=\"horizontal\"><img border=\"0\" src=\"http://assets.pinterest.com/images/PinExt.png\" title=\"Pin It\" /></a></p>", buttonUrl];
[htmlString appendFormat:@"<p align=\"center\"><img width=\"400px\" height = \"400px\" src=%@></img></p>", imageUrl];
[htmlString appendFormat:@"<script type=\"text/javascript\" src=\"//assets.pinterest.com/js/pinit.js\"></script>"];
[htmlString appendFormat:@"</body> </html>"];
[mywebview setBackgroundColor:[UIColor clearColor]];
NSString *path = [[NSBundle mainBundle] bundlePath];
NSURL *baseURL = [NSURL fileURLWithPath:path];
[mywebview loadHTMLString:htmlString baseURL:baseURL];
[mywebview setOpaque:NO];
}
当我尝试使用此代码时，结果显示在下面.
when I tried with this code it show below result.
任何帮助都会得到帮助.谢谢
Any help will be appriated.Thanks
推荐答案
尝试一下...
- (void) imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info
{
[imagePicker dismissModalViewControllerAnimated:YES];
image= [info objectForKey:@"UIImagePickerControllerOriginalImage"];
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory,NSUserDomainMask, YES);
NSString *documentsDirectory = [paths objectAtIndex:0];
savedImagePath = [[documentsDirectory stringByAppendingPathComponent:@"savedImage.png"] mutableCopy];
NSLog(@"savedImagePath..%@",savedImagePath);
// imageView is my image from camera
imageData = UIImagePNGRepresentation(image);
[imageData writeToFile:savedImagePath atomically:YES];
}
- (NSString*) generatePinterestHTML {
NSString *description = @"Post your description here";
NSString *stringUrl = [NSString stringWithFormat:@"%@",savedImagePath];
NSLog(@"stringUrl:%@", stringUrl);
//
NSURL *urlToUpload = [[NSURL alloc]initFileURLWithPath:stringUrl];
sUrl = [NSString stringWithFormat:@"%@",urlToUpload];
// sUrl = [NSString stringWithFormat:@"http://4.bp.blogspot.com/-w4oTZjlpgwo/T5_pi-KJPuI/AAAAAAAAAoM/rKm3E0XCbgY/s1600/red_rose_flower3.jpg"];
NSLog(@"URL:%@", sUrl);
NSString *protectedUrl = (__bridge NSString *)CFURLCreateStringByAddingPercentEscapes(NULL,(__bridge CFStringRef)sUrl, NULL, (CFStringRef)@"!'\"();:@&=+$,/?%#[]% ",CFStringConvertNSStringEncodingToEncoding(NSUTF8StringEncoding));
NSLog(@"Protected URL:%@", protectedUrl);
NSString *imageUrl = [NSString stringWithFormat:@"\"%@\"", sUrl];
NSString *buttonUrl = [NSString stringWithFormat:@"\"http://pinterest.com/pin/create/button/?url=www.flor.com&media=%@&description=%@\"", protectedUrl, description];
NSMutableString *htmlString = [[NSMutableString alloc] initWithCapacity:1000];
[htmlString appendFormat:@"<html> <body>"];
[htmlString appendFormat:@"<p align=\"center\"><a href=%@ class=\"pin-it-button\" count-layout=\"horizontal\"><img border=\"0\" src=\"http://assets.pinterest.com/images/PinExt.png\" title=\"Pin It\" /></a></p>", buttonUrl];
[htmlString appendFormat:@"<p align=\"center\"><img width=\"400px\" height = \"400px\" src=%@></img></p>", imageUrl];
[htmlString appendFormat:@"<script type=\"text/javascript\" src=\"//assets.pinterest.com/js/pinit.js\"></script>"];
[htmlString appendFormat:@"</body> </html>"];
return htmlString;
}
- (void) postToPinterest {
NSString *htmlString = [self generatePinterestHTML];
NSLog(@"Generated HTML String:%@", htmlString);
webViewPinterest.backgroundColor = [UIColor clearColor];
webViewPinterest.opaque = NO;
if ([webViewPinterest isHidden]) {
[webViewPinterest setHidden:NO];
}
[webViewPinterest loadHTMLString:htmlString baseURL:nil];
//[webViewPinterest loadHTMLString:@"<img src=images.png>" baseURL:nil];
}
如果您要上传本地图像，请先将您的imagePath转换为url，然后尝试此操作，但要在我放置评论的地方写上转换url的代码，然后再传递该url……希望对您有帮助......
And if you want to upload local image then first convert your imagePath into url and then try this but write your code of converting url where i put comments and then pass that url...... Hope it will helpful for you......
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