Several tips in iOS development

IOS game programming starts from scratch-cocos2dx and cocos2d engine development. The knowledge inside is simplified into depth, giving a detailed and in-depth explanation to the developers of basic IOS. I will share some tips on iOS development with you.

1. compressed image: uiimage * yourimage = [self imagewithimagesimple: Image scaledtosize: cgsizemake (210.0,
(210.0)];

- (UIImage*)imageWithImageSimple:(UIImage*)image scaledToSize:(CGSize)newSize  {      // Create a graphics image context      UIGraphicsBeginImageContext(newSize);            // Tell the old image to draw in this newcontext, with the desired      // new size      [image drawInRect:CGRectMake(0,0,newSize.width,newSize.height)];            // Get the new image from the context      UIImage* newImage = UIGraphicsGetImageFromCurrentImageContext();            // End the context      UIGraphicsEndImageContext();            // Return the new image.      return newImage;  }  

2. url Encoding

NSString * encodedString = (NSString *)CFURLCreateStringByAddingPercentEscapes  (NULL, (CFStringRef)yourtext, NULL,   (CFStringRef)@”!*’();:@&=+$,/?%#[]“, kCFStringEncodingUTF8);

3. Set navigationbar to hide

self.navigationController.navigationBarHidden = YES;

4. load images in imageview

UIImage *myImage = [UIImage imageNamed:@"1.jpg"];  [imageView setImage:myImage];  [self.view addSubview:imageView]; 

5. How to stop the uiview Animation

#import<QuartzCore/QuartzCore.h>[self.view.layer removeAllAnimations];

6. Use tags to retrieve controls on cells

[cell.contentView viewWithTag:tag];