nsarray有包含字串

 NSArray *ar=@[@"john",@"bally",@"bill"];

 NSString *check=@"john";

    

    NSPredicate *predicate = [NSPredicate predicateWithFormat:@"SELF IN %@", ar];

    BOOL result = [predicate evaluateWithObject:check];

IE11 在win10開啟的錯誤

裝了win10，但要試著開啟ie總是錯誤

試了很多方法，連重設都放了，最後找到解法了

在網際網路>進階>設定找尋為加強的受保護模式啟用64位元處理程序打勾

就可以正常開啟ie了


ref→http://answers.microsoft.com/zh-hant/ie/forum/ie11-iewindows8_1/internet-explorer-11/76b30f71-11db-4198-8a11-f9a1152ea62f?auth=1

webview scales frame

- (void)webViewDidFinishLoad:(UIWebView *)webView

{

    webView.scalesPageToFit = YES;

    webView.contentMode = UIViewContentModeScaleAspectFit;

    webView.scrollView.scrollEnabled = NO;

    

    CGSize contentSize = webView.scrollView.contentSize;

    CGSize viewSize = webView.bounds.size;

    

    float rw = viewSize.width / contentSize.width;

    webView.scrollView.minimumZoomScale = rw;

    webView.scrollView.maximumZoomScale = rw;

    webView.scrollView.zoomScale = rw;

    

}

post image

NSData *imageData = UIImageJPEGRepresentation(self.image.image,0);

NSString *url=@"http://test/postimage";

 NSURL *theURL = [NSURL URLWithString:url];

    NSMutableURLRequest *theRequest = [NSMutableURLRequest requestWithURL:theURL cachePolicy:NSURLRequestReloadIgnoringCacheData timeoutInterval:8.0f];

    [theRequest setHTTPMethod:@"POST"];

    [theRequest setValue:@"application/json" forHTTPHeaderField:@"Accept"];

    [theRequest setValue:@"image/jpg" forHTTPHeaderField:@"Content-Type"];

    theRequest.timeoutInterval=10.0;

    [theRequest setValue:[NSString stringWithFormat:@"%lu", (unsigned long)[imageData length]] forHTTPHeaderField:@"Content-Length"];

    [theRequest setHTTPBody: imageData];

    

    NSString *result= [self HttpResult:theRequest];

    

字串只留下數字，或只留下文字

using System.Text.RegularExpressions;

string  inputStr = "abc123";

 var outputNum = Regex.Replace( inputStr, @"[\D-]", string.Empty); //只有數字被保留

 var outputStr = Regex.Replace( inputStr, @"[\d-]", string.Empty); //只有文字被保留

UIButton Title

UIButton* rightButton = [UIButton buttonWithType:UIButtonTypeDetailDisclosure];

放置 set the button title by state

[rightButton setTitle:cid forState:UIControlStateNormal];

取得 get the button title by state

[rightButton titleForState: UIControlStateNormal]

狀態 state can change you want

 UIControlStateNormal       //正常

 UIControlStateHighlighted  

 UIControlStateDisabled    //無作用狀態

 UIControlStateSelected

 UIControlStateFocused 

 UIControlStateApplication  

 UIControlStateReserved 

button label lines

btn .titleLabel.numberOfLines=2;