Android - Set a border around an ImageView

Question

I have a cell with a fixed width and height, let it be 100x100px. Inside that cell I want to display an ImageView with a border around.
My first idea was to put

Answer 1

you can use the custom imageview, from where you can get the border, here is the code. you can also change the width of padding and stroke width according to your need. It is specify just below the first line of code, thank you

public class FreeCollage extends ImageView {

    private static final int PADDING = 8;
    private static final float STROKE_WIDTH = 5.0f;

    private Paint mBorderPaint;

    public FreeCollage(Context context) {
        this(context, null);
    }

    public FreeCollage(Context context, AttributeSet attrs) {
        this(context, attrs, 0);
        setPadding(PADDING, PADDING, PADDING, PADDING);
    }

    public FreeCollage(Context context, AttributeSet attrs, int defStyle) {
        super(context, attrs, defStyle);
        initBorderPaint();
    }

    private void initBorderPaint() {
        mBorderPaint = new Paint();
        mBorderPaint.setAntiAlias(true);
        mBorderPaint.setStyle(Paint.Style.STROKE);
        mBorderPaint.setColor(Color.WHITE);
        mBorderPaint.setStrokeWidth(STROKE_WIDTH);
    }

    @Override
    protected void onDraw(Canvas canvas) {
        super.onDraw(canvas);
        canvas.drawRect(PADDING, PADDING, getWidth() - PADDING, getHeight() - PADDING, mBorderPaint);
    }
}