本文章由cartzhang编写，转载请注明出处。 所有权利保留。
文章链接：http://blog.csdn.net/cartzhang/article/details/49818953
作者：cartzhang
一、Unity 打印日志
Unity中，在其编辑器上有个专门的Console，快捷键：shift + Ctrl+ c 。
代码中的Debug.Log("this is a test");就会打印到这里。
但是在打包后，只有从Log中找到，能不能找到一个可以实时显示的工具呢？
很明显，必须有啊！！要不写这篇不就是瞎扯了么？！！
我辗转腾挪，到处寻觅，我肯定不是第一个有这个想法的人。
终于有一天，我来到了七环！！！找到了几种方法，与君共享！！
二、我想有个控制台
之前说的Debug.Log();此函数是打印Unity控制台的。
好办，有高人已经重新把控制台给换了地方，打印到界面的控制台上。
就是类似控制台的一个界面。
先放结果图样：
1.问题来了，怎么实现的呢？
上代码：
我给改了名字叫TestConsole.cs了，因为之前名字为Console,这样想我这样都在一个工程中为大家测试，容易造成混乱。
//#define USE_TESTCONSOLE
using System.Collections.Generic;
using UnityEngine;
namespace Consolation
{
/// <summary>
/// A console to display Unity's debug logs in-game.
/// </summary>
class TestConsole : MonoBehaviour
{
#if USE_TESTCONSOLE
struct Log
{
public string message;
public string stackTrace;
public LogType type;
}
#region Inspector Settings
/// <summary>
/// The hotkey to show and hide the console window.
/// </summary>
public KeyCode toggleKey = KeyCode.BackQuote;
/// <summary>
/// Whether to open the window by shaking the device (mobile-only).
/// </summary>
public bool shakeToOpen = true;
/// <summary>
/// The (squared) acceleration above which the window should open.
/// </summary>
public float shakeAcceleration = 3f;
/// <summary>
/// Whether to only keep a certain number of logs.
///
/// Setting this can be helpful if memory usage is a concern.
/// </summary>
public bool restrictLogCount = false;
/// <summary>
/// Number of logs to keep before removing old ones.
/// </summary>
public int maxLogs = 1000;
#endregion
readonly List<Log> logs = new List<Log>();
Vector2 scrollPosition;
bool visible;
bool collapse;
// Visual elements:
static readonly Dictionary<LogType, Color> logTypeColors = new Dictionary<LogType, Color>
{
{ LogType.Assert, Color.white },
{ LogType.Error, Color.red },
{ LogType.Exception, Color.red },
{ LogType.Log, Color.white },
{ LogType.Warning, Color.yellow },
};
const string windowTitle = "Console";
const int margin = 20;
static readonly GUIContent clearLabel = new GUIContent("Clear", "Clear the contents of the console.");
static readonly GUIContent collapseLabel = new GUIContent("Collapse", "Hide repeated messages.");
readonly Rect titleBarRect = new Rect(0, 0, 10000, 20);
Rect windowRect = new Rect(margin, margin, Screen.width - (margin * 2), Screen.height - (margin * 2));
void OnEnable()
{
#if UNITY_5
Application.logMessageReceived += HandleLog;
#else
Application.RegisterLogCallback(HandleLog);
#endif
}
void OnDisable()
{
#if UNITY_5
Application.logMessageReceived -= HandleLog;
#else
Application.RegisterLogCallback(null);
#endif
}
void Update()
{
if (Input.GetKeyDown(toggleKey))
{
visible = !visible;
}
if (shakeToOpen && Input.acceleration.sqrMagnitude > shakeAcceleration)
{
visible = true;
}
}
void OnGUI()
{
if (!visible)
{
return;
}
windowRect = GUILayout.Window(123456, windowRect, DrawConsoleWindow, windowTitle);
}
/// <summary>
/// Displays a window that lists the recorded logs.
/// </summary>
/// <param name="windowID">Window ID.</param>
void DrawConsoleWindow(int windowID)
{
DrawLogsList();
DrawToolbar();
// Allow the window to be dragged by its title bar.
GUI.DragWindow(titleBarRect);
}
/// <summary>
/// Displays a scrollable list of logs.
/// </summary>
void DrawLogsList()
{
scrollPosition = GUILayout.BeginScrollView(scrollPosition);
// Iterate through the recorded logs.
for (var i = 0; i < logs.Count; i++)
{
var log = logs[i];
// Combine identical messages if collapse option is chosen.
if (collapse && i > 0)
{
var previousMessage = logs[i - 1].message;
if (log.message == previousMessage)
{
continue;
}
}
GUI.contentColor = logTypeColors[log.type];
GUILayout.Label(log.message);
}
GUILayout.EndScrollView();
// Ensure GUI colour is reset before drawing other components.
GUI.contentColor = Color.white;
}
/// <summary>
/// Displays options for filtering and changing the logs list.
/// </summary>
void DrawToolbar()
{
GUILayout.BeginHorizontal();
if (GUILayout.Button(clearLabel))
{
logs.Clear();
}
collapse = GUILayout.Toggle(collapse, collapseLabel, GUILayout.ExpandWidth(false));
GUILayout.EndHorizontal();
}
/// <summary>
/// Records a log from the log callback.
/// </summary>
/// <param name="message">Message.</param>
/// <param name="stackTrace">Trace of where the message came from.</param>
/// <param name="type">Type of message (error, exception, warning, assert).</param>
void HandleLog(string message, string stackTrace, LogType type)
{
logs.Add(new Log
{
message = message,
stackTrace = stackTrace,
type = type,
});
TrimExcessLogs();
}
/// <summary>
/// Removes old logs that exceed the maximum number allowed.
/// </summary>
void TrimExcessLogs()
{
if (!restrictLogCount)
{
return;
}
var amountToRemove = Mathf.Max(logs.Count - maxLogs, 0);
if (amountToRemove == 0)
{
return;
}
logs.RemoveRange(0, amountToRemove);
}
#endif
}
}我在代码最前面添加了宏定义，使用的时候屏蔽此宏定义即可。
2.怎么使用呢？
恩。我写的使用很简单。
随便写个C#代码，在Update中测试的。
// Update is called once per frame
void Update ()
{
//DebugConsole.Log(" test s");
Debug.Log("Debug log test");
Console.WriteLine("this is Console Write line test ");
///
//DebugConsole.instance.AddMessage("this is instance AddMessage test by cartzhang", "warning");
//DebugConsole.Log("this is debug console log test cartzhang");
}3.结果上面已经说明了。
这里就不重复了。
4.这怎么实现的呢？
原理很简单。写一个面板，往上面写字啊！
说下啊，这个有个切换按键，就是可以控制是否显示这个面板的，按键为BackQuote，你也可以修改，BackQuote这个键呢，在ESC按键的下面就是这个“～”。
三、这不是我想要的，我要显示在屏幕上。
我想要显示在控制台上，就是CMD出来的那样。
可以啊！
1. 直接写在屏幕上的代码
不过，我先赠送一个显示在屏幕上的。
这样我觉得大部分的人就会满足了，最起码不用自己写GUI .Label()了啊。
说明这个是国外友人好早之前写的，我只改变了其中某些不符合现在Unity 5 的语句，其他没有动。
还是代码：
/*==== DebugConsole.cs ====================================================
* Class for handling multi-line, multi-color debugging messages.
* Original Author: Jeremy Hollingsworth
* Based On: Version 1.2.1 Mar 02, 2006
*
* Modified: Simon Waite
* Date: 22 Feb 2007
*
* Modification to original script to allow pixel-correct line spacing
*
* Setting the boolean pixelCorrect changes the units in lineSpacing property
* to pixels, so you have a pixel correct gui font in your console.
*
* It also checks every frame if the screen is resized to make sure the
* line spacing is correct (To see this; drag and let go in the editor
* and the text spacing will snap back)
*
* USAGE:
* ::Drop in your standard assets folder (if you want to change any of the
* default settings in the inspector, create an empty GameObject and attach
* this script to it from you standard assets folder. That will provide
* access to the default settings in the inspector)
*
* ::To use, call DebugConsole.functionOrProperty() where
* functionOrProperty = one of the following:
*
* -Log(string message, string color) Adds "message" to the list with the
* "color" color. Color is optional and can be any of the following: "error",
* "warning", or "normal". Default is normal.
*
* Clear() Clears all messages
*
* isVisible (true,false) Toggles the visibility of the output. Does _not_
* clear the messages.
*
* isDraggable (true, false) Toggles mouse drag functionality
* =========================================================================*/
//#define USE_DEBUGCONSOLE
using UnityEngine;
using System.Collections;
public class DebugConsole : MonoBehaviour
{
#if USE_DEBUGCONSOLE
public GameObject DebugGui = null; // The GUI that will be duplicated
public Vector3 defaultGuiPosition = new Vector3(0.01F, 0.98F, 0F);
public Vector3 defaultGuiScale = new Vector3(0.5F, 0.5F, 1F);
public Color normal = Color.green;
public Color warning = Color.yellow;
public Color error = Color.red;
public int maxMessages = 30; // The max number of messages displayed
public float lineSpacing = 0.02F; // The amount of space between lines
public ArrayList messages = new ArrayList();
public ArrayList guis = new ArrayList();
public ArrayList colors = new ArrayList();
public bool draggable = true; // Can the output be dragged around at runtime by default?
public bool visible = true; // Does output show on screen by default or do we have to enable it with code?
public bool pixelCorrect = false; // set to be pixel Correct linespacing
public static bool isVisible
{
get
{
return DebugConsole.instance.visible;
}
set
{
DebugConsole.instance.visible = value;
if (value == true)
{
DebugConsole.instance.Display();
}
else if (value == false)
{
DebugConsole.instance.ClearScreen();
}
}
}
public static bool isDraggable
{
get
{
return DebugConsole.instance.draggable;
}
set
{
DebugConsole.instance.draggable = value;
}
}
private static DebugConsole s_Instance = null; // Our instance to allow this script to be called without a direct connection.
public static DebugConsole instance
{
get
{
if (s_Instance == null)
{
s_Instance = FindObjectOfType(typeof(DebugConsole)) as DebugConsole;
if (s_Instance == null)
{
GameObject console = new GameObject();
console.AddComponent<DebugConsole>();
console.name = "DebugConsoleController";
s_Instance = FindObjectOfType(typeof(DebugConsole)) as DebugConsole;
DebugConsole.instance.InitGuis();
}
}
return s_Instance;
}
}
void Awake()
{
s_Instance = this;
InitGuis();
}
protected bool guisCreated = false;
protected float screenHeight =-1;
public void InitGuis()
{
float usedLineSpacing = lineSpacing;
screenHeight = Screen.height;
if(pixelCorrect)
usedLineSpacing = 1.0F / screenHeight * usedLineSpacing;
if (guisCreated == false)
{
if (DebugGui == null) // If an external GUIText is not set, provide the default GUIText
{
DebugGui = new GameObject();
DebugGui.AddComponent<GUIText>();
DebugGui.name = "DebugGUI(0)";
DebugGui.transform.position = defaultGuiPosition;
DebugGui.transform.localScale = defaultGuiScale;
}
// Create our GUI objects to our maxMessages count
Vector3 position = DebugGui.transform.position;
guis.Add(DebugGui);
int x = 1;
while (x < maxMessages)
{
position.y -= usedLineSpacing;
GameObject clone = null;
clone = (GameObject)Instantiate(DebugGui, position, transform.rotation);
clone.name = string.Format("DebugGUI({0})", x);
guis.Add(clone);
position = clone.transform.position;
x += 1;
}
x = 0;
while (x < guis.Count)
{
GameObject temp = (GameObject)guis[x];
temp.transform.parent = DebugGui.transform;
x++;
}
guisCreated = true;
} else {
// we're called on a screensize change, so fiddle with sizes
Vector3 position = DebugGui.transform.position;
for(int x=0;x < guis.Count; x++)
{
position.y -= usedLineSpacing;
GameObject temp = (GameObject)guis[x];
temp.transform.position= position;
}
}
}
bool connectedToMouse = false;
void Update()
{
// If we are visible and the screenHeight has changed, reset linespacing
if (visible == true && screenHeight != Screen.height)
{
InitGuis();
}
if (draggable == true)
{
if (Input.GetMouseButtonDown(0))
{
if (connectedToMouse == false && DebugGui.GetComponent<GUIText>().HitTest((Vector3)Input.mousePosition) == true)
{
connectedToMouse = true;
}
else if (connectedToMouse == true)
{
connectedToMouse = false;
}
}
if (connectedToMouse == true)
{
float posX = DebugGui.transform.position.x;
float posY = DebugGui.transform.position.y;
posX = Input.mousePosition.x / Screen.width;
posY = Input.mousePosition.y / Screen.height;
DebugGui.transform.position = new Vector3(posX, posY, 0F);
}
}
}
//+++++++++ INTERFACE FUNCTIONS ++++++++++++++++++++++++++++++++
public static void Log(string message, string color)
{
DebugConsole.instance.AddMessage(message, color);
}
//++++ OVERLOAD ++++
public static void Log(string message)
{
DebugConsole.instance.AddMessage(message);
}
public static void Clear()
{
DebugConsole.instance.ClearMessages();
}
//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
//---------- void AddMesage(string message, string color) ------
//Adds a mesage to the list
//--------------------------------------------------------------
public void AddMessage(string message, string color)
{
messages.Add(message);
colors.Add(color);
Display();
}
//++++++++++ OVERLOAD for AddMessage ++++++++++++++++++++++++++++
// Overloads AddMessage to only require one argument(message)
//+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
public void AddMessage(string message)
{
messages.Add(message);
colors.Add("normal");
Display();
}
//----------- void ClearMessages() ------------------------------
// Clears the messages from the screen and the lists
//---------------------------------------------------------------
public void ClearMessages()
{
messages.Clear();
colors.Clear();
ClearScreen();
}
//-------- void ClearScreen() ----------------------------------
// Clears all output from all GUI objects
//--------------------------------------------------------------
void ClearScreen()
{
if (guis.Count < maxMessages)
{
//do nothing as we haven't created our guis yet
}
else
{
int x = 0;
while (x < guis.Count)
{
GameObject gui = (GameObject)guis[x];
gui.GetComponent<GUIText>().text = "";
//increment and loop
x += 1;
}
}
}
//---------- void Prune() ---------------------------------------
// Prunes the array to fit within the maxMessages limit
//---------------------------------------------------------------
void Prune()
{
int diff;
if (messages.Count > maxMessages)
{
if (messages.Count <= 0)
{
diff = 0;
}
else
{
diff = messages.Count - maxMessages;
}
messages.RemoveRange(0, (int)diff);
colors.RemoveRange(0, (int)diff);
}
}
//---------- void Display() -------------------------------------
// Displays the list and handles coloring
//---------------------------------------------------------------
void Display()
{
//check if we are set to display
if (visible == false)
{
ClearScreen();
}
else if (visible == true)
{
if (messages.Count > maxMessages)
{
Prune();
}
// Carry on with display
int x = 0;
if (guis.Count < maxMessages)
{
//do nothing as we havent created our guis yet
}
else
{
while (x < messages.Count)
{
GameObject gui = (GameObject)guis[x];
//set our color
switch ((string)colors[x])
{
case "normal": gui.GetComponent<GUIText>().material.color = normal;
break;
case "warning": gui.GetComponent<GUIText>().material.color = warning;
break;
case "error": gui.GetComponent<GUIText>().material.color = error;
break;
}
//now set the text for this element
gui.GetComponent<GUIText>().text = (string)messages[x];
//increment and loop
x += 1;
}
}
}
}
#endif
}// End DebugConsole Class
2.使用方法
//DebugConsole.instance.AddMessage("this is instance AddMessage test by cartzhang", "warning");
//DebugConsole.Log("this is debug console log test cartzhang");3.结果如图
四、这还不是我想要的，我要显示在控制台上，就是CMD出来的那样。
好吧，你赢了！！
你往下看吧！
-----------THE END ---------------
若有问题，请随时联系！
非常感谢！
--------
由于担心篇幅过长，写成下一篇吧。
再次感谢各位！