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我在页脚中添加了UITextView的表格视图。一旦用户点击文本视图,我想让我的表格视图动画到顶部。这是用下面的一段代码完成的,但我必须将高度设置为负值。有没有其他的方式来做到这一点?使用增加高度将文本视图设置为顶部
- (void)textViewDidBeginEditing:(UITextView *)iTextView {
[UIView animateWithDuration:0.4
delay:0
options:UIViewAnimationTransitionFlipFromLeft
animations:^{
self.myTextView.frame = CGRectMake(8, 4, 200, -160);
self.myTextView.text = @"test";
self.myTextView.font = [UIFont systemFontOfSize:14];
self.myTextView.textColor = [UIColor blackColor];
}
completion:^(BOOL finished){
self.myLabel = [[[UILabel alloc] initWithFrame:CGRectMake(0, self.feedbackTextView.frame.size.height + kRunnerTopBottomMargin, kScreenWidth, 20.0f)] autorelease];
self.myLabel.backgroundColor = [UIColor clearColor];
self.myLabel.textColor = [UIColor darkGrayColor];
self.myLabel.text = @"default";
self.myLabel.textAlignment = UITextAlignmentCenter;
self.myLabel.font = [UIFont systemFontOfSize:12];
[self.view addSubview:self.myLabel];
}];