我在viewDidLoad
和didRotateFromInterfaceOrientation
处调用此函数
-(void) makeBox{
[self.view1 removeFromSuperview];
float viewWidth = CGRectGetWidth(self.view.frame);
float viewHeight = CGRectGetHeight(self.view.frame);
float startx = (viewWidth / 100) * 10;
float starty = (viewHeight /100) * 20;
float width = (viewWidth / 100) * 80;
float height = (viewHeight /100) * 60;
CGRect frame1 = CGRectMake(startx, starty, width, height);
self.view1 = [[UIView alloc] initWithFrame:frame1];
[self.view1 setBackgroundColor:[UIColor redColor]];
[self.view addSubview:self.view1];
}
当视图确实发生变化时,其非常“粗糙”且根本不是十分优美。我正在使用模拟器,但是我假设如果我要在设备上运行,它将是相同的。我将如何使过渡更加顺畅?我会发布到用户体验页面,但我希望以编程方式执行此操作
除了学习之外,总体目的是从代码中获得与方向无关的图形(没有自动布局)。
最佳答案
如果您只是要更改视图,则无需删除视图并使用所需的框架创建一个新视图。只需就地修改视图框架:
- (void)makeBox {
CGFloat viewWidth = CGRectGetWidth(self.view.frame);
CGFloat viewHeight = CGRectGetHeight(self.view.frame);
CGFloat startx = (viewWidth / 100) * 10;
CGFloat starty = (viewHeight /100) * 20;
CGFloat width = (viewWidth / 100) * 80;
CGFloat height = (viewHeight /100) * 60;
CGRect view1Frame = CGRectMake(startx, starty, width, height);
if (!self.view1) {
// The view doesn't exists yet, we create it
self.view1 = [[UIView alloc] initWithFrame:view1Frame];
[self.view1 setBackgroundColor:[UIColor redColor]];
[self.view addSubview:self.view1];
}
else {
// Just update the frame
self.view1.frame = view1Frame;
}
}
对于精美的UX,请将帧更新包装在动画块中:
// ... snip ...
else {
[UIView animateWithDuration:0.3 animations:^() {
self.view1.frame = view1Frame;
}];
}
关于ios - iOS,优美的方向变化,我们在Stack Overflow上找到一个类似的问题:https://stackoverflow.com/questions/28072457/