使用GameCanvas从byte []数组绘制图像 [英] DrawImage from byte[] array using GameCanvas

问题描述

DrawImage，有可能吗?
服务器发送jpg图片，该图片存储在byte[] array中，如何显示?
我看过关于从int[] array绘制的图片，其中每个元素都是RGB颜色，
就我而言，我需要对图像拳头进行解码.
请帮忙.

DrawImage from byte[] array using GameCanvas, is it possible?
Server sends jpg-image, which stores in byte[] array, how to display it?
I have seen about drawing from int[] array, where each element is RGB color,
by in my case I need to decode image fist.
Please, help.
edit:

	try{
os.write(data);//send request to server
 
Thread.sleep(200);
    while(is.available()==0)//wait
    {
 
    }
slen = 96860;
byte[] img = new byte[96860];
is.read(img, 0, slen);// read image into array
 
      Image image = Image.createImage(img,0,slen);// creating image
g.drawImage(image,        // <== illegal argument exception
        0,
        0,
        100);
}
catch(Exception x){
    System.out.print(x.toString());
}

在Debug中，我看到图像的大小和内容，并且在使用ImageItem和form.append ..时此方法有效，但是在Canvas中-它不起作用.

in Debug i see image size and content, and this method works when use ImageItem and form.append.. , but in Canvas - it not works.

推荐答案

您的问题与最后一个参数"100"一起使用.在JSR-118文档中阅读锚点.锚参数仅允许使用某些值，而100不是其中之一.所需的任何值都应以大写形式表示，例如Graphics.HCENTER | Graphics.TOP

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Your problem is with the last argument "100". Read up on anchor points in the JSR-118 documentation. There are only certain values allowed for the anchor argument, and 100 is not one of them. Whatever value you want should be expressed sumbolically, for example Graphics.HCENTER | Graphics.TOP

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