可以在任何视图中截取屏幕截图的屏幕截图应用

Question

I know it is possible to take screenshots inside your own app but I was wondering if it is possible to have an app that allows you to capture screenshots in any view as long as the app it open. Im pretty sure its not possible but I just wanted to double check. Thank you.

Answer 1

不，在iOS上无法与沙箱之外的其他应用程序进行交互。

Answer 2

Its an iOS default. If you press the Home + Power button at the same time the iOS device will take a screenshot and store the screenshot in your photos app.

Answer 3

In other words, you would like to spy on other apps. Like the user's banking information. Now that the question is rephrased, I'll bet you know the answer (and why it won't change even if you file a feature request).

Answer 4

- (IBAction)saveScreenshot {        
    // Define the dimensions of the screenshot you want to take (the entire screen in this case)
    CGSize size =  [[UIScreen mainScreen] bounds].size;

    // Create the screenshot
    UIGraphicsBeginImageContext(size);
    // Put everything in the current view into the screenshot
    [[self.view layer] renderInContext:UIGraphicsGetCurrentContext()];
    // Save the current image context info into a UIImage
    UIImage *newImage = UIGraphicsGetImageFromCurrentImageContext();
    UIGraphicsEndImageContext();

    // Save the screenshot to the device's photo album
    UIImageWriteToSavedPhotosAlbum(newImage, self,
                                   @selector(image:didFinishSavingWithError:contextInfo:), nil);
}

- (void)image:(UIImage *)image didFinishSavingWithError:(NSError *)error contextInfo:(void *)contextInfo {

    if (error) {
        // Handle if the image could not be saved to the photo album
    }
    else {
        // The save was successful and all is well
    }
}