ios-在animateWithDuration調用時旋轉

在animateWithDuration調用時旋轉

用下面的代碼動畫UIView，運行正常，就是不能實現在調用時實現旋轉和縮放，我想同時實現這些，需要縮放至0，並且旋轉。

[UIView animateWithDuration:0.4 delay:0.0 options:UIViewAnimationOptionCurveEaseInOut
                 animations:^(void) {
                     recognizer.view.transform = CGAffineTransformMakeRotation(DegreesToRadians(540));
                     recognizer.view.backgroundColor = [[UIColor alloc] initWithRed:220.0/255.0 green:220.0/255.0 blue:220.0/255.0 alpha:1.0];   
                 }];

最佳回答：

用CGAffineTransformConcat方法：

[UIView animateWithDuration:0.4 delay:0.0 options:UIViewAnimationOptionCurveEaseInOut
                 animations:^(void) {
                     recognizer.view.transform = CGAffineTransformConcat(CGAffineTransformMakeRotation(DegreesToRadians(540)), CGAffineTransformMakeScale(1.0, 1.0));
                     recognizer.view.backgroundColor = [[UIColor alloc] initWithRed:220.0/255.0 green:220.0/255.0 blue:220.0/255.0 alpha:1.0];   
                 }];

希望有幫助~