调整图像大小以适合imageview

Question

I am developing an application in which I need to fit an Bitmap into Imageview with specific dimensions(let's suppose 350dpx50dp - height*width).

I wanted to do something similar like this: http://gyazo.com/d739d03684e46411feb58d66acea1002

I have looked here for solutions. I found this code for scale the bitmap and fit it into imageview, but the problem is that imageview becomes greater when I add the bitmap into him:

private void scaleImage(Bitmap bitmap, ImageView view)
{
    // Get current dimensions AND the desired bounding box
    int width = bitmap.getWidth();
    int height = bitmap.getHeight();
    int bounding = dpToPx(350);

    // Determine how much to scale: the dimension requiring less scaling is
    // closer to the its side. This way the image always stays inside your
    // bounding box AND either x/y axis touches it.
    float xScale = ((float) bounding) / width;
    float yScale = ((float) bounding) / height;
    float scale = (xScale <= yScale) ? xScale : yScale;

    // Create a matrix for the scaling and add the scaling data
    Matrix matrix = new Matrix();
    matrix.postScale(scale, scale);

    // Create a new bitmap and convert it to a format understood by the ImageView
    Bitmap scaledBitmap = Bitmap.createBitmap(bitmap, 0, 0, width, height, matrix, true);

    // Apply the scaled bitmap
    view.setImageBitmap(scaledBitmap);
}

Using this code I can get this : http://gyazo.com/e9871db2130ac33668156fc0cf773594

But that's not what I wanted, I want to keep the dimensions of imageview and add the bitmap into imageview without modifying the dimensions of imageview and occupying all the imageview's surface. Like the first image.

Answer 1

为什么不只将android:scaleType="fitXY"到xml的ImageView中？