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當第一次旋轉UIImageView並將其動畫框架時，我目前遇到了麻煩。只要我開始將它的框架動畫到target_position，我的圖像就會改變它的大小。它得到更廣泛和更高（根據旋轉角度）使用UIView更改框架來旋轉UIImageView動畫更改它的尺寸
我目前使用的旋轉的代碼是：
- (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event {
if (!isAnimating) {
isAnimating = YES;
UITouch *t = [[touches allObjects] lastObject];
float angle = atan2([t locationInView:self.view].y - player.frame.origin.y, [t locationInView:self.view].x - player.frame.origin.x) * 180/M_PI;
NSLog(@"Angle: %f", angle);
CGAffineTransform cgCTM = CGAffineTransformMakeRotation(DEGREES_TO_RADIANS(angle));
[player setTarget_position:CGRectMake([t locationInView:self.view].x, [t locationInView:self.view].y, player.image.size.width-angle, player.image.size.height+angle)];
[UIView beginAnimations:@"rotatePlayer" context:nil];
[UIView setAnimationDuration:2];
player.transform = cgCTM;
[UIView setAnimationDelegate:self];
[UIView setAnimationDidStopSelector:@selector(playerFinishedRotating)];
[UIView commitAnimations];
}
}
旋轉本身運行正常。這是playerFinishedRotating函數的代碼：
- (void)playerFinishedRotating {
[UIView beginAnimations:@"rotatePlayer" context:nil];
[UIView setAnimationDuration:3];
[player setFrame:[player target_position]];
[UIView setAnimationDelegate:self];
[UIView setAnimationDidStopSelector:@selector(playerFinishedAnimating)];
[UIView commitAnimations];
}
對我來說，它是一種合乎邏輯的，而旋轉的我UIImageVie改變它的大小。但我堅持如何用給定的數據（旋轉角度f.e.）來調整我的target_position幀的寬度和高度值。
我不是一個數學天才，所以對於其他人的答案可能是顯而易見的，但對我來說這不是:(
希望有人能幫助，如果您還有其他問題，請LEVE評論。