本文记录了,在unity中点击按钮后,调起一个新窗口选择指定文件的功能
直接看代码吧:
using System;
using System.Collections;
using System.Collections.Generic;
using System.Runtime.InteropServices;
using UnityEngine;
public class OpenFileTest : MonoBehaviour {
/// <summary>
/// 浏览按钮
/// </summary>
public UnityEngine.UI.Button browseBtn;
private void Awake()
{
browseBtn.onClick.AddListener(OnClickLiuLanBtn);
}
/// <summary>
/// 点击了浏览按钮
/// </summary>
void OnClickLiuLanBtn()
{
OpenFileName openFileName = new OpenFileName();
openFileName.structSize = Marshal.SizeOf(openFileName);
//控制指定文件的后缀名格式
openFileName.filter ="Txt文件(*.txt)\0*.txt";
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 = Application.streamingAssetsPath.Replace('/', '\\');//默认路径
openFileName.title = "新窗口名称";
openFileName.flags = 0x00080000 | 0x00001000 | 0x00000800 | 0x00000008;
if (LocalDialog.GetOpenFileName(openFileName))
{
Debug.Log(openFileName.file);
Debug.Log(openFileName.fileTitle);
}
}
}
[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 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] OpenFileName ofn);
public static bool GetOFN([In, Out] OpenFileName 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] OpenFileName ofn);
public static bool GetSFN([In, Out] OpenFileName ofn)
{
return GetSaveFileName(ofn);
}
}