Question

I am doing a custom draw in my App for a View in drawRect method.

我抓住了用户的先令,并以此为基础,每当我这样做的时候,我就想改变观点的范围。

我尝试用读写法修改《国际律师意见》的框架。但我认为,这样做是错误的,因为引人Rect要求我们作出特别的回避。

我的确制定了议定书,而且当我接获时,我尝试在议定书方法的帮助下,改变观点的分化。但这也不可行。

How can I achieve this?

<><>UPDATE:

I was able to change the UIView s frame from awakeFromNib method of Custom UIView. But I have necessity to change the frame regulary based on users actions, and did not find any ways to reload awakeFromNib method..

Answer 1

这些只是一些例子,需要加以修改,以适应你的具体情况,但你可能使用<条码>CGRectApplyAffine Transform或<条码>:

- (IBAction)handlePinchGesture:(UIGestureRecognizer *)sender {
    UIView *senderView = sender.view;
    if (sender.state == UIGestureRecognizerStateBegan) {
        initialFrame = senderView.frame;
    }
    CGFloat factor = [(UIPinchGestureRecognizer *)sender scale];
    CGAffineTransform zt = CGAffineTransformScale(CGAffineTransformIdentity, factor, factor);
    senderView.frame = CGRectApplyAffineTransform(initialFrame, zt);
    return;
}

/* -------------------------------------------------------------------------- */

- (IBAction)handlePinchGesture:(UIGestureRecognizer *)sender {
    UIView *senderView = sender.view;
    [UIView beginAnimations:nil context:nil];
    [UIView setAnimationDuration:0.35f];
    [UIView setAnimationCurve:UIViewAnimationCurveEaseIn];

    /* Set changes for the animation before calling commitAnimations
    self.tableView.layer.borderWidth = 3.0;
    self.tableView.layer.borderColor = [[UIColor colorWithRed:0.1 green:0.1 blue:0.1 alpha:0.85] CGColor];
    self.tableView.layer.backgroundColor = [[UIColor colorWithWhite:0.2 alpha:0.5] CGColor];
    self.tableView.layer.shadowOffset = CGSizeMake(4.0, 2.0);
    self.tableView.layer.shadowColor = [[UIColor blackColor] CGColor];
    self.tableView.layer.shadowOpacity = 1.0;
    self.tableView.layer.shadowRadius = 2.0;
    self.tableView.layer.cornerRadius = 10.0;
    */

    [UIView commitAnimations];
}

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