iphone - 从 UIVIEW+ipad 截图

Question

我想截取viewcontroller的屏幕截图我写过这个:-

- (UIImage *)captureScreenInRectWOScroll:(CGRect)captureFrame {    
    CALayer *layer;
    layer = self.view.layer;
    UIGraphicsBeginImageContext(captureFrame.size); 
    CGContextClipToRect (UIGraphicsGetCurrentContext(),captureFrame);
    [layer renderInContext:UIGraphicsGetCurrentContext()];
    UIImage *screenImage = UIGraphicsGetImageFromCurrentImageContext();
    UIGraphicsEndImageContext();
    return screenImage; 
}

我调用此方法的方式:-

UIImage *img_woscroll1 =[self captureScreenInRectWOScroll:CGRectMake(35,147,497,260)];

我想从下面的附图中截取地址的屏幕截图:-

当我从上面的代码中截取屏幕截图时，我得到的图像在顶部有很多空白(顶部的绿色图像)，如果图像:-

请帮助我..如何从图像中获取正确的屏幕截图，这样我就不会在顶部看到空白图像。

Answer 1

试试这个

UIGraphicsBeginImageContext(myView.frame.size);
[myView.layer renderInContext:UIGraphicsGetCurrentContext()];
UIImage *viewImage = UIGraphicsGetImageFromCurrentImageContext();
UIGraphicsEndImageContext();
NSData *data=UIImagePNGRepresentation(viewImage);
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *documentsDirectory = [paths objectAtIndex:0];
NSString *strPath = [documentsDirectory stringByAppendingPathComponent:@"myimage.png"];
[data writeToFile:strPath atomically:YES];