Question

I am working in an android application and I want to place an ImageView in a particular position in my view. For that I applied the particular code and worked successfully :

ImageView image = (ImageView) findViewById(R.id.imageView1);
Bitmap bMap = BitmapFactory.decodeResource(getResources(), R.drawable.mrng);
Matrix mat = new Matrix();
mat.postRotate(350);
Bitmap bMapRotate = Bitmap.createBitmap(bMap, 0, 0, bMap.getWidth(),bMap.getHeight(), mat, true);
image.setImageBitmap(bMapRotate);

Now I want to set a border to this image. For that I made a an shape xml and I have set as the background of the image view.

<?xml version="1.0" encoding="UTF-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android">
    <solid android:color="#FFFFFF" />
    <stroke android:width="3dp" android:color="#000000" />
</shape>

But when I gave the background of the image view the shape it does not give the correct output.please help me.

I do not want a border around the ImageView, but rather border around the rotated image.

Answer 1

EDIT: I’m completely rewriting my answer based on the clarification of the question. Here’s how I achieved what you want. The idea is to draw the frame and then rotate:

    ImageView image = (ImageView) findViewById(R.id.TestImage);
    Bitmap bMap = BitmapFactory.decodeResource(getResources(), R.drawable.image);

    final int BORDER_WIDTH = 3;
    final int BORDER_COLOR = Color.BLACK;
    Bitmap res = Bitmap.createBitmap(bMap.getWidth() + 2 * BORDER_WIDTH,
                                     bMap.getHeight() + 2 * BORDER_WIDTH,
                                     bMap.getConfig());
    Canvas c = new Canvas(res);
    Paint p = new Paint();
    p.setColor(BORDER_COLOR);
    c.drawRect(0, 0, res.getWidth(), res.getHeight(), p);
    p = new Paint(Paint.FILTER_BITMAP_FLAG);
    c.drawBitmap(bMap, BORDER_WIDTH, BORDER_WIDTH, p);

    Matrix mat = new Matrix();
    mat.postRotate(350);
    Bitmap bMapRotate = Bitmap.createBitmap(res, 0, 0, res.getWidth(), res.getHeight(), mat, true);
    image.setImageBitmap(bMapRotate);        

And here’s the screenshot of the result: