How to create a custom in screen camera

🎤 General Discussion Swift
1

I would like to create a camera view that takes a picture of the screen. Anything on the screen that is within its borders will be taken. This is not using the physical camera on the iPhone its basically a screen shot. I have attached a picture of what I am looking for. The camera view is the screen shot and the button takes the picture.

Screen Shot 2016-09-26 at 12.26.36 AM.png2560×1600 498 KB

2

Considering a check for retina display use the following code snippet :

#import <QuartzCore/QuartzCore.h>

Your button click event should be like :

if ([[UIScreen mainScreen] respondsToSelector:@selector(scale)]) {
    UIGraphicsBeginImageContextWithOptions(self.window.bounds.size, NO, [UIScreen mainScreen].scale);
} else {
    UIGraphicsBeginImageContext(self.window.bounds.size);
}

[self.window.layer renderInContext:UIGraphicsGetCurrentContext()];
 UIImage *image = UIGraphicsGetImageFromCurrentImageContext();
 UIGraphicsEndImageContext();

// use as a image in your app or you can save it in document directory for further usage

 NSData *imageData = UIImagePNGRepresentation(image);
 if (imageData) {
    [imageData writeToFile:@"screenshot.png" atomically:YES];
} else {
    NSLog(@"error while taking screenshot");
}
3

Is this using cocoapods?

4

Cocoa pods is totally different thing. In cocoa pods, also you can add this code snippet. Cocoa pods does not restrict you if you do code on your requirement.

5

and I just type this into a typical view controller?