小编Nab*_*abi的帖子

我正在设计一个没有标题栏的应用程序,但是当我使用Xcode 4中的界面构建器删除标题栏时,它会导致可编辑字段(我尝试过的字段是textView和textField)不可编辑,尽管可编辑在那里检查属性？为什么会发生这种情况并且无论如何都要阻止它？

我正在尝试为图像添加一个(假的)3d效果(UIImageView从A点移动到B,在此运动期间,我希望在C =(A + B)/ 2点,因为它具有最大的阴影大小(或更大的阴影偏移),所以看起来它再次上下移动.当我尝试甚至更改阴影大小时,它不是动画.你能帮我如何编辑这段代码:

NSValue *pointB = [NSValue valueWithCGPoint:CGPointMake(CGRectGetMinX(imageView.frame)+50, CGRectGetMinY(imageView.frame)+50)];
[self.view bringSubviewToFront:ImageView];    
[UIView beginAnimations:@"UIImage Move" context:NULL];
CGPoint point = [pointB CGPointValue];
CGSize size =imageView.frame.size;
[UIView setAnimationDuration:1.0];
imageView.frame = CGRectMake(point.x, point.y, size.width, size.height);
imageView.layer.shadowOffset = CGSizeMake(0, 4); //actually I want this to happen in mid point and revert to offset 1
[UIView commitAnimations];


//sorry for possible problems with syntax, the code works fine, I had to rewrite and simplify it for understanding

我尝试更改材质 ui 滑块中轨道属性的宽度或高度，我从他们网站上的演示中获取了它。但是我无法改变厚度。

import React from "react";
import { withStyles, makeStyles } from "@material-ui/core/styles";
import Slider from "@material-ui/core/Slider";

const useStyles = makeStyles(theme => ({
  root: {
    width: 300 + theme.spacing(3) * 2
  },
  margin: {
    height: theme.spacing(3)
  }
}));

const PrettoSlider = withStyles({
  root: {
    color: "#52af77",
    height: 8
  },
  thumb: {
    height: 24,
    width: 24,
    backgroundColor: "#fff",
    border: "4px solid currentColor",
    marginTop: -8,
    marginLeft: -12,
    "&:focus,&:hover,&$active": {
      boxShadow: "inherit"
    }
  },
  active: {},
  track: {
    height: 8,
    borderRadius: 0 …