ios - iOS KeyBoard 出现时 View Transition 结结巴巴

Question

这是我从 ViewA 显示 ViewB 的转换代码

CGPoint c = thepoint;
CGFloat tx = c.x - floorf(theview.center.x) + 10;
CGFloat ty = c.y - floorf(theview.center.y) + 100;

[UIView animateWithDuration:0.5
                      delay:0.0
                    options:UIViewAnimationOptionCurveEaseOut
                 animations:^{
                     // Transforms
                     CGAffineTransform t = CGAffineTransformMakeTranslation(tx, ty);
                     t = CGAffineTransformScale(t, 0.1, 0.1);
                     theview.transform = t;
                     theview.layer.masksToBounds = YES;
                     [theview setTransform:CGAffineTransformIdentity];

                 }
                 completion:^(BOOL finished) {

                 }];

现在过渡非常顺利，没有任何问题。

在我的 ViewB 中，我有一个带有默认焦点的文本框。 (在 viewDidAppear 中)

-(void)viewDidAppear:(BOOL)animated
{
    [super viewDidAppear:NO];
    [self performSelector:@selector(focusCommentText) withObject:nil afterDelay:0.5];
}

- (void) focusCommentText {
[self focusTextbox:commentText];
}

- (void) focusTextbox : (UITextView *) textView{
    @try {
        [ textView becomeFirstResponder];
    }
    @catch (NSException *exception) {

    }
}

过渡和键盘出现..同时发生..现在有点尴尬。有人可以帮我解决这个问题吗？

Answer 1

我会做的是不调用[textView becomeFirstResponder]，直到转换完成。