public void setThumbnail()

in RenderScriptIntrinsic/Application/src/main/java/com/example/android/renderscriptintrinsic/ThumbnailRadioButton.java [62:114]


    public void setThumbnail(Bitmap bitmap) {
        // Bitmap drawable
        BitmapDrawable bmp = new BitmapDrawable(getResources(), bitmap);
        bmp.setGravity(Gravity.CENTER);

        int strokeWidth = 24;
        // Checked state
        ShapeDrawable rectChecked = new ShapeDrawable(new RectShape());
        rectChecked.getPaint().setColor(0xFFFFFFFF);
        rectChecked.getPaint().setStyle(Paint.Style.STROKE);
        rectChecked.getPaint().setStrokeWidth(strokeWidth);
        rectChecked.setIntrinsicWidth(bitmap.getWidth() + strokeWidth);
        rectChecked.setIntrinsicHeight(bitmap.getHeight() + strokeWidth);
        Drawable drawableArray[] = new Drawable[]{bmp, rectChecked};
        LayerDrawable layerChecked = new LayerDrawable(drawableArray);

        // Unchecked state
        ShapeDrawable rectUnchecked = new ShapeDrawable(new RectShape());
        rectUnchecked.getPaint().setColor(0x0);
        rectUnchecked.getPaint().setStyle(Paint.Style.STROKE);
        rectUnchecked.getPaint().setStrokeWidth(strokeWidth);
        rectUnchecked.setIntrinsicWidth(bitmap.getWidth() + strokeWidth);
        rectUnchecked.setIntrinsicHeight(bitmap.getHeight() + strokeWidth);
        Drawable drawableArray2[] = new Drawable[]{bmp, rectUnchecked};
        LayerDrawable layerUnchecked = new LayerDrawable(drawableArray2);

        // StateList drawable
        StateListDrawable states = new StateListDrawable();
        states.addState(new int[]{android.R.attr.state_checked},
                layerChecked);
        states.addState(new int[]{},
                layerUnchecked);

        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN) {
            setBackground(states);
        } else {
            //noinspection deprecation
            setBackgroundDrawable(states);
        }

        //Offset text to center/bottom of the checkbox
        Paint paint = new Paint();
        paint.setAntiAlias(true);
        paint.setTextSize(getTextSize());
        paint.setTypeface(getTypeface());
        float w = paint.measureText(getText(), 0, getText().length());
        setPadding(getPaddingLeft() + (int) ((bitmap.getWidth() - w) / 2.f + .5f),
                getPaddingTop() + (int) (bitmap.getHeight() * 0.70),
                getPaddingRight(),
                getPaddingBottom());

        setShadowLayer(5, 0, 0, Color.BLACK);
    }