Http下载Demo

深藏阁楼爱情的钟 2022-07-26 05:18 146阅读 0赞

public class ImageTest : MonoBehaviour 
    {
    	string url = "http://www.yxk.com:8000/test.png";
    
    	private Texture2D img = null;
    
    	private Texture2D img2 = null;
    
    	private bool downloadOK = false;
    
    	enum GetPicType 
    	{
    		DownLoad = 0,
    		LoaclLoad
    	}
    
    	void OnGUI()
    	{
    		if( this.img != null )
    		{
    			GUI.DrawTexture(new Rect(0,0,200,300),this.img );
    		}
    		if( this.img2 != null )
    		{
    			GUI.DrawTexture(new Rect(320,0,200,300),this.img2 );
    		}
    		if( GUI.Button (new Rect (210, 50, 100, 30), "网络加载") ) 
    		{
    			StartCoroutine( this.DownLoadTexture( this.url, GetPicType.DownLoad ));
    		}
    		if( GUI.Button (new Rect (210, 150, 100, 30), "本地加载") ) 
    		{
    			if( this.downloadOK )
    			{
    				StartCoroutine( this.DownLoadTexture( "file://" + Application.streamingAssetsPath + "/test.png", GetPicType.LoaclLoad ));
    			}
    			else
    			{
    
    			}
    		}
    	}
    
    	IEnumerator DownLoadTexture( string url, GetPicType getType )
    	{
    		WWW www = new WWW (url);
    		yield return www;
    		Texture2D tempImage = null;
    		if( www.isDone && www.error == null ) 
    		{
    			switch( getType )
    			{
    				case GetPicType.DownLoad:
    				{
    					this.img = www.texture;
    					tempImage = this.img;
    					break;
    				}
    				case GetPicType.LoaclLoad:
    				{
    					this.img2 = www.texture;
    					tempImage = this.img2;
    					break;
    				}
    				default:
    				{
    
    					break;
    				}
    			}
    		}
    		if( tempImage != null ) 
    		{
    			byte[] data = tempImage.EncodeToPNG();
    			System.IO.File.WriteAllBytes( Application.streamingAssetsPath + "/test.png", data );
    			this.downloadOK = true;
    		}
    	}
    }