假设在下面的代码中$someThingIsTrue
为假。
容器行是否有任何类或属性如果缺少第二列,则第一列宽度设置为100%?
请注意我正在寻找只有Bootstrap解决方案(因为我也理解我可以编写相同的if语句,并在需要时为第一列设置col-lg-12)
<div class="row">
<div class="col-lg-6">Some content here</div>
<?php if($someThingIsTrue): ?>
<div class="col-lg-6">Other content here</div>
<?php endif; ?>
</div>
答案 0 :(得分:2)
如果你想在PHP中使用它,请试试这个:
using System;
using System.Runtime.InteropServices;
using UnityEngine;
public class Test : MonoBehaviour
{
[DllImport("ImageInputInterface")]
private static extern void GetRawImageBytes(IntPtr data, int width, int height);
private Texture2D tex;
private Color32[] pixel32;
private GCHandle pixelHandle;
private IntPtr pixelPtr;
void Start()
{
InitTexture();
gameObject.GetComponent<Renderer>().material.mainTexture = tex;
}
void Update()
{
MatToTexture2D();
}
void InitTexture()
{
tex = new Texture2D(512, 512, TextureFormat.ARGB32, false);
pixel32 = tex.GetPixels32();
//Pin pixel32 array
pixelHandle = GCHandle.Alloc(pixel32, GCHandleType.Pinned);
//Get the pinned address
pixelPtr = pixelHandle.AddrOfPinnedObject();
}
void MatToTexture2D()
{
//Convert Mat to Texture2D
GetRawImageBytes(pixelPtr, tex.width, tex.height);
//Update the Texture2D with array updated in C++
tex.SetPixels32(pixel32);
tex.Apply();
}
void OnApplicationQuit()
{
//Free handle
pixelHandle.Free();
}
}
如果您使用bootstrap 4 you can use flexbox,则需要在每个项目上加<div class="row">
<div class="col-lg-<?= ($someThingIsTrue ? '6' : '12') ?>">Some content here</div>
<?php if ($someThingIsTrue): ?>
<div class="col-lg-6">Other content here</div>
<?php endif; ?>
</div>
。
width:100%
以下是一个示例(视图摘要):
<div class="d-flex">
<div class="p-2">Other content here</div>
<?php if ($someThingIsTrue): ?>
<div class="p-2">Some Other content here</div>
<?php endif; ?>
</div>
.box {
width:100%;
}
.box-blue {
background:blue;
}
.box-red {
background:red;
}
.box-green {
background:green;
}
答案 1 :(得分:0)
您可以在php变量$class
中设置类,如下所示:
<div class="row">
<?php
if($someThingIsTrue)
$class= 'col-lg-6';
else
$class = 'col-lg-12';
endif;
?>
<div class="<?php echo $class;">Some content here</div>
<?php if($someThingIsTrue): ?>
<div class="col-gl-6">Other content here</div>
<?php endif; ?>
</div>