Unity3D研究院之IOS&Android收集Log文件

using UnityEngine;
using System.Collections;
using System.Collections.Generic;
using System.IO;
using System.Text;

public class OutLog : MonoBehaviour 
{
  static List<string> mLines = new List<string>();
  static List<string> mWriteTxt = new List<string>();
  private string outpath;
  void Start () {
    //Application.persistentDataPath Unity中只有这个路径是既可以读也可以写的。
    outpath = Application.persistentDataPath + "/outLog.txt";
    //每次启动客户端删除之前保存的Log
    if (System.IO.File.Exists (outpath)) {
      File.Delete (outpath);
    }
    //在这里做一个Log的监听
    Application.RegisterLogCallback(HandleLog);
    //一个输出
    Debug.Log("xuanyusong");
  }

  void Update () 
  {
    //因为写入文件的操作必须在主线程中完成，所以在Update中哦给你写入文件。
    if(mWriteTxt.Count > 0)
    {
      string[] temp = mWriteTxt.ToArray();
      foreach(string t in temp)
      {
        using(StreamWriter writer = new StreamWriter(outpath, true, Encoding.UTF8))
        {
          writer.WriteLine(t);
        }
        mWriteTxt.Remove(t);
      }
    }
  }

  void HandleLog(string logString, string stackTrace, LogType type)
  {
    mWriteTxt.Add(logString);
    if (type == LogType.Error || type == LogType.Exception) 
    {
      Log(logString);
      Log(stackTrace);
    }
  }

  //这里我把错误的信息保存起来，用来输出在手机屏幕上
  static public void Log (params object[] objs)
  {
    string text = "";
    for (int i = 0; i < objs.Length; ++i)
    {
      if (i == 0)
      {
        text += objs[i].ToString();
      }
      else
      {
        text += ", " + objs[i].ToString();
      }
    }
    if (Application.isPlaying)
    {
      if (mLines.Count > 20) 
      {
        mLines.RemoveAt(0);
      }
      mLines.Add(text);

    }
  }

  void OnGUI()
  {
    GUI.color = Color.red;
    for (int i = 0, imax = mLines.Count; i < imax; ++i)
    {
      GUILayout.Label(mLines[i]);
    }
  }
}

void Start () {
    int []test = new int[1];
    test[2] = 0;
  }