android - 回收位图异常

Question

我遇到了这个异常:

异常:java.lang.IllegalStateException:无法复制回收位图

我的代码是:

    int width = bitmap.getWidth();
    int height = bitmap.getHeight();
    int newWidth;
    int newHeight;
    if (width >= height) {
        newWidth = Math.min(width,1024);
        newHeight = (int) (((float)newWidth)*height/width);
    }
    else {
        newHeight = Math.min(height, 1024);
        newWidth = (int) (((float)newHeight)*width/height);
    }
    float scaleWidth = ((float)newWidth)/width;
    float scaleHeight = ((float)newHeight)/height;

    Matrix matrix = new Matrix();
    matrix.postScale(scaleWidth, scaleHeight);
    switch (orientation) {
    case 3:
        matrix.postRotate(180);
        break;
    case 6:
        matrix.postRotate(90);
        break;
    case 8:
        matrix.postRotate(270);
        break;
    }
    Bitmap resizedBitmap = Bitmap.createBitmap(bitmap, 0, 0, width, height, matrix, true);
    bitmap.recycle();
    try {
        bitmap = resizedBitmap.copy(resizedBitmap.getConfig(), true);
    }
    catch (Exception e) {
        Log.v(TAG,"Exception: "+e);
    }

如果异常告诉我我已经回收了 resizedBitmap，那显然是错误的!我做错了什么？？

Answer 1

您实际上是在这一行之后调用 bitmap.recycle();:

Bitmap resizedBitmap = Bitmap.createBitmap(bitmap, 0, 0, width, height, matrix, true);