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How to set the selected image area in ImageView

I tried to install the image in the image imageviewfrom the external storage, and I did with it, but the fact is that it sets the entire image to imageview, and I only want to install the selected square area from this image. Just life facebook provided the functionality to set up a pic profile .. Can someone help me do this? Below is an example that I want to do.

enter image description here

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2 answers

Something like that:

public static Bitmap cropBitmapToSquare(Bitmap bmp) {

    System.gc();
    Bitmap result = null;
    int height = bmp.getHeight();
    int width = bmp.getWidth();
    if (height <= width) {
        result = Bitmap.createBitmap(bmp, (width - height) / 2, 0, height,
                height);
    } else {
        result = Bitmap.createBitmap(bmp, 0, (height - width) / 2, width,
                width);
    }
    return result;
}

Here is a yield example:

http://khurramitdeveloper.blogspot.ru/2013/07/capture-or-select-from-gallery-and-crop.html

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setImageMatrix , Drawable ( ):

class CropDrawable extends BitmapDrawable {

    private Rect mSrc;
    private RectF mDst;

    public CropDrawable(Bitmap b, int left, int top, int right, int bottom) {
        super(b);
        mSrc = new Rect(left, top, right, bottom);
        mDst = new RectF(0, 0, right - left, bottom - top);
    }

    @Override
    public void draw(Canvas canvas) {
        canvas.drawBitmap(getBitmap(), mSrc, mDst, null);
    }

    @Override
    public int getIntrinsicWidth() {
        return mSrc.width();
    }

    @Override
    public int getIntrinsicHeight() {
        return mSrc.height();
    }
}

:

    ImageView iv = new ImageView(this);
    Bitmap b = BitmapFactory.decodeResource(getResources(), R.drawable.test);
    Drawable d = new CropDrawable(b, 150, 100, 180, 130);
    iv.setImageDrawable(d);
    setContentView(iv);
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