如何通过编码，iPhone将应用程序中的屏幕截图缩小到小帧

Question

i want to have a screen shot with in the app and then use that image in the next view. Is there is a way so we can take screen shot of a view in the app and then use that image.

Many thanks in advance

gagan joshi

Answer 1

try this one

#import <QuartzCore/QuartzCore.h>
@property (retain, nonatomic) IBOutlet UIImageView *imageView;

-(UIImage*)getShot
{
    UIGraphicsBeginImageContext(CGSizeMake(320, 460));
    [imageView.layer renderInContext:UIGraphicsGetCurrentContext()];
    UIImage *viewImage = UIGraphicsGetImageFromCurrentImageContext();
    UIGraphicsEndImageContext();
    return viewImage;
}

hope this will help you out for iphone and ipad

Answer 2

capture screen shot of iphone app

#import <QuartzCore/QuartzCore.h>
    -(UIImage*)captureImage
    {

        UIGraphicsBeginImageContext(CGSizeMake(320, 460));
        [self.view.layer renderInContext:UIGraphicsGetCurrentContext()];
        UIImage *viewImage = UIGraphicsGetImageFromCurrentImageContext();
        UIGraphicsEndImageContext();
        return viewImage;
    }

Answer 3

Easy to do (assuming self is an UIViewController ):

#import < QuartzCore/QuartzCore.h >

...

UIGraphicsBeginImageContext(self.view.bounds.size);

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

UIGraphicsEndImageContext();

Now you have the screenshot in the variable screenshot and can put it into an UIImageView.