Question

作为我项目的一部分, 我正面对着以下的java 代码。

BitmapFactory.Options BitmapFactoryOptionsbfo = new BitmapFactory.Options();

         /*BitMapFactory-Creates Bitmap objects from various sources, including 
          * files, streams, and byte-arrays. 
          */

         BitmapFactoryOptionsbfo.inPreferredConfig = Bitmap.Config.RGB_565; 

imageWidth = myBitmap.getWidth();

     imageHeight = myBitmap.getHeight();

    myFace = new FaceDetector.Face[numberOfFace];

    myFaceDetect = new FaceDetector(imageWidth, imageHeight, numberOfFace);

     numberOfFaceDetected = myFaceDetect.findFaces(myBitmap, myFace); 

     }

//i get error over there in R.drawable.pics      
myBitmap = BitmapFactory.decodeResource(getResources(), R.drawable.pics, BitmapFactoryOptionsbfo);

I am supposed to give the name of the pic file in pics but it keeps giving me an error pics cannot be resolved or is not a field. So I set the name of the pic file as pic PS it s a jpg file in the drawable folder. I also named the file within single quotes as pic ---it gives me Invalid character constant error.

我也用双引号给它命名,但还是行不通。我还给它命名,pic.jpg仍然不起作用。

Answer 1

您的代码中可能有另一个变量, 名为 pics 。

尝试将它保存在不同的文件夹中, 表示 MyPics。并用不同的名称命名图片, 表示 xyz1. jpg

在此情况下,将行写为:

myBitmap = BitmapFactory.decodeResource(getResources(), R.MyPics.xyz1, BitmapFactoryOptionsbfo);

您是否将我的 Bitmap 初始化为位图图像? 意思是, 您是否包含此行 :

Bitmap myBitmap;

在您代码中, 执行图像读取前?

Answer 2

只需检查以下代码行 :

 BitmapFactory.Options options = new BitmapFactory.Options();
 options.inPreferredConfig =  Bitmap.Config RGB_565;
 Bitmap bMap = BitmapFactory.decodeResource(getResources(), R.drawable.icon,options);

Let me know whether it works or not? Also check image names which appears after you type R.drawable.

<强度 > EDIT:

如果您仍然无法从可提取的图像访问图像, 请将图像复制到资产文件夹, 并使用以下代码访问 :

更新的代码 :

try {
       InputStream bitmap=getAssets().open("icon.png");
       Bitmap bit=BitmapFactory.decodeStream(bitmap);
       img.setImageBitmap(bit);
     } catch (IOException e1) {
       // TODO Auto-generated catch block
       e1.printStackTrace();
     }

友情链接