Question

我内存不足错误：

以下是我的代码：

public static Bitmap decodeSampledBitmapFromResource(InputStream inputStream,int reqWidth, int reqHeight) {

        ByteArrayOutputStream baos = new ByteArrayOutputStream();
            byte[] buffer = new byte[1024];
            int len;
            try {
            while ((len = inputStream.read(buffer)) > -1 ) {
               baos.write(buffer, 0, len);
            }
            baos.flush();
            InputStream is1 = new ByteArrayInputStream(baos.toByteArray()); 
            InputStream is2 = new ByteArrayInputStream(baos.toByteArray()); 

        // First decode with inJustDecodeBounds=true to check dimensions
        final BitmapFactory.Options options = new BitmapFactory.Options();
        options.inDither=false;      
        options.inPurgeable=true;                   
        options.inInputShareable=true; 
        options.inJustDecodeBounds = true;
      //  BitmapFactory.decodeResource(res, resId, options);
        BitmapFactory.decodeStream(is1,null,options);

        // Calculate inSampleSize
        options.inSampleSize = calculateInSampleSize(options, reqWidth, reqHeight);

        // Decode bitmap with inSampleSize set
        options.inJustDecodeBounds = false;

        return BitmapFactory.decodeStream(is2,null,options); // error at this line
            } catch (IOException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
            return null;
        }
    }

我在这一行收到错误

BitmapFactory.decodeStream(is2,null,options);

我收到此错误Out of memory on a 3250016-byte allocation.

我已经看过很多帖子，但在这种情况下仍无法找到解决方案。

Answer 1

请不要使此函数静态存在静态成员的内存问题。

秒你没有使用BitmapFactory.decodeStream（is1，null，options）;任何地方都可以从代码中删除它。

也尝试这个代码我用它从sdcard路径获取位图，你可以很容易地修改它以满足你的需要，我用它来处理类似的情况，它永远不会失败。

public Bitmap getImage(String path) throws IOException
    {
        BitmapFactory.Options options = new BitmapFactory.Options();
        options.inJustDecodeBounds = true;
        BitmapFactory.decodeFile(path, options);        
        int srcWidth = options.outWidth;
        int srcHeight = options.outHeight;
        int[] newWH =  new int[2];
        newWH[0] = srcWidth/2;
        newWH[1] = (newWH[0]*srcHeight)/srcWidth;

        int inSampleSize = 1;
        while(srcWidth / 2 >= newWH[0]){
            srcWidth /= 2;
            srcHeight /= 2;
            inSampleSize *= 2;
        }

        //      float desiredScale = (float) newWH[0] / srcWidth;
        // Decode with inSampleSize
        options.inJustDecodeBounds = false;
        options.inDither = false;
        options.inSampleSize = inSampleSize;
        options.inScaled = false;
        options.inPreferredConfig = Bitmap.Config.ARGB_8888;
        Bitmap sampledSrcBitmap = BitmapFactory.decodeFile(path,options);
        ExifInterface exif = new ExifInterface(path);
        String s=exif.getAttribute(ExifInterface.TAG_ORIENTATION);
        System.out.println("Orientation>>>>>>>>>>>>>>>>>>>>"+s);
        Matrix matrix = new Matrix();
        float rotation = rotationForImage(Add_View_Images_Activity.this, Uri.fromFile(new File(path)));
        if (rotation != 0f) {
            matrix.preRotate(rotation);
        }
        int newh = ( w * sampledSrcBitmap.getHeight() ) /sampledSrcBitmap.getWidth();
        Bitmap r=Bitmap.createScaledBitmap(sampledSrcBitmap, w, newh, true);
        Bitmap resizedBitmap = Bitmap.createBitmap(
                r, 0, 0, w, newh, matrix, true);

        return resizedBitmap;
    }

内存不足错误 - BitmapFactory.decodeStream

1 个答案: