unity3d屏幕截图功能

function OnGUI(){
   if(GUI.Button(Rect(Screen.width*0.5-50,Screen.height*0.5-50,100,100),"screen")){
       Application.CaptureScreenshot("Screenshot.png");
   }
}

这张Screenshot.png图片被存在了当前工程的子目录下了。之前在android上面一直不知道路径，后来把所有路径试玩了总算ok了，呵呵~~~在android上截取的图片存在Application.persistentDataPath上面，在pc上存在Application.dataPath。

private var www:WWW;
private var image:Texture;
private var path:String;
function Awake(){
   Application.CaptureScreenshot("Screenshot.png");
}
function Start () {
   if(Application.platform==RuntimePlatform.Android){
      path=Application.persistentDataPath;
   }else if(Application.platform==RuntimePlatform.WindowsPlayer){
      path=Application.dataPath;
   }else if(Application.platform==RuntimePlatform.WindowsEditor){
      path=Application.dataPath;
      path=path.Replace("/Assets",null);
    }
   www=new WWW("file://"+path+"/Screenshot.png");
   yield www;
   image=www.texture;
}

function OnGUI(){
    GUI.Label(Rect(0,0,400,50),"1:"+Application.persistentDataPath);
    GUI.Label(Rect(0,50,400,50),"2:"+Application.dataPath);
    GUI.Label(Rect(0,100,400,50),"3:"+Application.temporaryCachePath);
    GUI.Label(Rect(0,150,400,50),"4:"+Application.absoluteURL);
    GUI.Label(Rect(0,200,400,50),"5:"+Application.streamingAssetsPath);
    GUI.DrawTexture(Rect(0,250,300,200),image);
}

在编辑器上各种路径：

    

在pc上各种路径：

      

在web上各种路径：

    

在android上面各种路径：

   

第二种方法：

import System.IO;
var www:WWW;
var image:Texture;
function Start () {

}

function OnGUI() {
    if(GUI.Button(Rect(0,0,100,100),"png")){
        writeFile();
    }
    if(Input.GetKey(KeyCode.Escape)){
       Application.Quit();
    }

      www=new WWW("file://"+path);
      image=www.texture;
      GUI.Button(Rect(Screen.width-100,0,100,100),image);

}
private var fileName : String = "jietu2";
private var path:String;
function writeFile()
{
    path=Application.dataPath;
    var tex : Texture2D= new Texture2D(Screen.width,Screen.height,TextureFormat.RGB24, false);
    tex.ReadPixels(Rect(0,0,Screen.width,Screen.height),0,0);
    tex.Apply();
    var bytes : byte[]=tex.EncodeToPNG();
    Destroy(tex);
    var thisName : String = fileName+".png";
    if(Application.platform==RuntimePlatform.Android){
        path="/mnt/sdcard/"+thisName;
    }else{
       path=path+thisName;
    }
    var cache = new FileStream(path, FileMode.Create);
    cache.Write(bytes,0,bytes.Length);
    cache.Close();
}

后来我又试了一下这个方法，结果又不行了，运行到var cache = new FileStream(path, FileMode.Create);就不运行了。