问题描述:
有个地方需要用户上传一张图片,网上查了,使用了如下代码:
csharp
string imagePath = EditorUtility.OpenFilePanel("Select Image", "", "png,jpg,jpeg");
然后在打包发布时遇到问题,因为EditorUtility使用了UnityEditor,无法发布,无奈只能另寻解决方法
解决方案:
新建一个脚本文件将下面的代码粘进去,静态加载即可
csharp
using System;
using System.IO;
using System.Runtime.InteropServices;
using UnityEngine;
/// <summary>
/// 调用系统代码,打开本地文件夹
/// </summary>
[StructLayout(LayoutKind.Sequential, CharSet = CharSet.Auto)]
public class OpenDialogueFile
{
public int structSize = 0;
public IntPtr dlgOwner = IntPtr.Zero;
public IntPtr instance = IntPtr.Zero;
public String filter = null;
public String customFilter = null;
public int maxCustFilter = 0;
public int filterIndex = 0;
public String file = null;
public int maxFile = 0;
public String fileTitle = null;
public int maxFileTitle = 0;
public String initialDir = null;
public String title = null;
public int flags = 0;
public short fileOffset = 0;
public short fileExtension = 0;
public String defExt = null;
public IntPtr custData = IntPtr.Zero;
public IntPtr hook = IntPtr.Zero;
public String templateName = null;
public IntPtr reservedPtr = IntPtr.Zero;
public int reservedInt = 0;
public int flagsEx = 0;
}
[StructLayout(LayoutKind.Sequential, CharSet = CharSet.Auto)]
public class OpenDialogDir
{
public IntPtr hwndOwner = IntPtr.Zero;
public IntPtr pidlRoot = IntPtr.Zero;
public String pszDisplayName = null;
public String lpszTitle = null;
public UInt32 ulFlags = 0;
public IntPtr lpfn = IntPtr.Zero;
public IntPtr lParam = IntPtr.Zero;
public int iImage = 0;
}
[StructLayout(LayoutKind.Sequential, CharSet = CharSet.Auto)]
public class OpenFileName
{
public int structSize = 0;
public IntPtr dlgOwner = IntPtr.Zero;
public IntPtr instance = IntPtr.Zero;
public String filter = null;
public String customFilter = null;
public int maxCustFilter = 0;
public int filterIndex = 0;
public String file = null;
public int maxFile = 0;
public String fileTitle = null;
public int maxFileTitle = 0;
public String initialDir = null;
public String title = null;
public int flags = 0;
public short fileOffset = 0;
public short fileExtension = 0;
public String defExt = null;
public IntPtr custData = IntPtr.Zero;
public IntPtr hook = IntPtr.Zero;
public String templateName = null;
public IntPtr reservedPtr = IntPtr.Zero;
public int reservedInt = 0;
public int flagsEx = 0;
}
public static class FolderBrowserHelper
{
#region Window
[DllImport("Comdlg32.dll", SetLastError = true, ThrowOnUnmappableChar = true, CharSet = CharSet.Auto)]
private static extern bool GetOpenFileName([In, Out] OpenFileName ofn);
[DllImport("Comdlg32.dll", SetLastError = true, ThrowOnUnmappableChar = true, CharSet = CharSet.Auto)]
private static extern bool GetSaveFileName([In, Out] OpenFileName ofn);
[DllImport("Comdlg32.dll", SetLastError = true, ThrowOnUnmappableChar = true, CharSet = CharSet.Auto)]
private static extern bool GetOpenFileName([In, Out] OpenDialogueFile ofn);
[DllImport("Comdlg32.dll", SetLastError = true, ThrowOnUnmappableChar = true, CharSet = CharSet.Auto)]
private static extern bool GetSaveFileName([In, Out] OpenDialogueFile ofn);
[DllImport("shell32.dll", SetLastError = true, ThrowOnUnmappableChar = true, CharSet = CharSet.Auto)]
private static extern IntPtr SHBrowseForFolder([In, Out] OpenDialogDir ofn);
[DllImport("shell32.dll", SetLastError = true, ThrowOnUnmappableChar = true, CharSet = CharSet.Auto)]
private static extern bool SHGetPathFromIDList([In] IntPtr pidl, [In, Out] char[] fileName);
#endregion
public const string IMAGEFILTER = "图片文件(*.jpg;*.png)\0*.jpg;*.png";
public const string ALLFILTER = "所有文件(*.*)\0*.*";
/// <summary>
/// 选择文件
/// </summary>
/// <param name="callback">返回选择文件夹的路径</param>
/// <param name="filter">文件类型筛选器</param>
public static string SelectFile(string filter = ALLFILTER)
{
try
{
OpenFileName openFileName = new OpenFileName();
openFileName.structSize = Marshal.SizeOf(openFileName);
// openFileName.initialDir = "初始目录"
openFileName.filter = filter;
openFileName.file = new string(new char[256]);
openFileName.maxFile = openFileName.file.Length;
openFileName.fileTitle = new string(new char[64]);
openFileName.maxFileTitle = openFileName.fileTitle.Length;
openFileName.title = "选择文件";
openFileName.flags = 0x00080000 | 0x00001000 | 0x00000800 | 0x00000008;
if (GetSaveFileName(openFileName))
{
string filepath = openFileName.file; //选择的文件路径;
if (File.Exists(filepath))
{
return filepath;
}
}
}
catch (Exception e)
{
Debug.LogError(e);
}
return null;
}
}
调用方法如下:
csharp
string imagePath = FolderBrowserHelper.SelectFile();
这样可以正常替代原本的
csharp
string imagePath = EditorUtility.OpenFilePanel("Select Image", "", "png,jpg,jpeg");