Unity选择文件或者文件路径的方法

一、引用对应的库文件：Unity选择文件或路径的库文件.rar

二、编写对应的控制脚本

/***
*	Title："智慧工厂" 项目
*		主题：打开文件
*	Description：
*		功能：XXX
*	Date：2019
*	Version：0.1版本
*	Author：Coffee
*	Modify Recoder：
*/
 
using UnityEngine;
using System.Collections;
using System;
using System.Runtime.InteropServices;
 
namespace kernal
{
    [StructLayout(LayoutKind.Sequential, CharSet = CharSet.Auto)]
 
    public class OpenSelectFileName
	{
        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;
 
	}//Class_end
 
 
}

　　

 
/***
*	Title："智慧工厂" 项目
*		主题：本地弹窗
*	Description：
*		功能：XXX
*	Date：2019
*	Version：0.1版本
*	Author：Coffee
*	Modify Recoder：
*/
 
using System.Runtime.InteropServices;
 
 
namespace Kernal
{
    public class LocalDialog
    {
        //链接指定系统函数       打开文件对话框
        [DllImport("Comdlg32.dll", SetLastError = true, ThrowOnUnmappableChar = true, CharSet = CharSet.Auto)]
        public static extern bool GetOpenFileName([In, Out] OpenSelectFileName ofn);
        public static bool GetOFN([In, Out] OpenSelectFileName ofn)
        {
            return GetOpenFileName(ofn);
        }
 
        //链接指定系统函数        另存为对话框
        [DllImport("Comdlg32.dll", SetLastError = true, ThrowOnUnmappableChar = true, CharSet = CharSet.Auto)]
        public static extern bool GetSaveFileName([In, Out] OpenSelectFileName ofn);
        public static bool GetSFN([In, Out] OpenSelectFileName ofn)
        {
            return GetSaveFileName(ofn);
        }
    }//Class_end
}

　　

/***
*	Title："智慧工厂" 项目
*	主题：选择资源或者路径方法
*	Description：
*	功能：XXX
*	Date：2019
*	Version：0.1版本
*	Author：Coffee
*	Modify Recoder：
*/
using System.Runtime.InteropServices;
using System.Windows.Forms;
namespace kernal
{
public class SelectFileOrPath 
{
private static SelectFileOrPath _Instance; //本类实例
#region 属性
private string _SelectFilePath; //选择的文件路径
private string _SelectFile; //选择文件
private string _FileName; //文件名称
//选择文件路径
public string SelectFilePath
{
get
{
return _SelectFilePath;
}
set
{
_SelectFilePath = value;
}
}
//选择文件
public string SelectFile
{
get
{
return _SelectFile;
}
set
{
_SelectFile = value;
}
}
//文件名称
public string FileName
{
get
{
return _FileName;
}
set
{
_FileName = value;
}
}
#endregion
/// <summary>
/// 本类实例
/// </summary>
/// <returns></returns>
public static SelectFileOrPath GetInstance()
{
if (_Instance==null)
{
_Instance = new SelectFileOrPath();
}
return _Instance;
}
/// <summary>
/// 选择文件路径(Unity自带的方法)
/// </summary>
public void SelectFolderPath_Unity()
{
FolderBrowserDialog fbd = new FolderBrowserDialog();
if (fbd.ShowDialog() == DialogResult.OK)
{
SelectFilePath = fbd.SelectedPath;
}
}
/// <summary>
/// 选择文件(Unity自带的方法)
/// </summary>
public void SelectFileSelf_Unity()
{
OpenFileDialog ofd = new OpenFileDialog();
ofd.InitialDirectory = "file://" + UnityEngine.Application.dataPath;//默认打开路径 
if (ofd.ShowDialog() == DialogResult.OK)
{
SelectFile = ofd.FileName;
}
}
/// <summary>
/// 选择文件路径（调用Windows方法）
/// </summary>
public void SelectFilePath_Windows()
{
OpenSelectFileName openFileName = new OpenSelectFileName();
openFileName.structSize = Marshal.SizeOf(openFileName);
openFileName.filter = "PDF文件(*.PDF)\0*.PDF|数据库文件(*.bak)\0*.bak|*.*\0*.*";
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.initialDir = UnityEngine.Application.streamingAssetsPath.Replace('/', '\\');//默认路径
openFileName.title = "请选择路径或者文件";
openFileName.flags = 0x00080000 | 0x00001000 | 0x00000800 | 0x00000008;
if (LocalDialog.GetSaveFileName(openFileName))
{
SelectFilePath = openFileName.file;
FileName= openFileName.file;
}
}
}//Class_end
}

　　

三、测试方法

/***
*	Title："智慧工厂" 项目
*		主题：测试选择路径或文件
*	Description：
*		功能：XXX
*	Date：2019
*	Version：0.1版本
*	Author：Coffee
*	Modify Recoder：
*/
 
using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using Control;
using kernal;
 
namespace SimpleUIFrame
{
	public class Test_BackUpSqlServerDatabase : MonoBehaviour
	{
        private string _BackUpPath;                                             //备份路径
 
		void Start()
		{
			
		}
 
 
        private void Update()
        {
            if (Input.GetKeyDown(KeyCode.X))
            {
                bool isSuccess = false;
                //选择备份路径
                SelectFileOrPath.GetInstance().SelectFilePath_Windows();
                _BackUpPath = SelectFileOrPath.GetInstance().SelectFilePath;
                if (!string.IsNullOrEmpty(_BackUpPath))
                {
                    Debug.Log("备份文件的路径=" + _BackUpPath);
 
 
            }
 
 
 
    }//Class_end
}

四、效果图如下