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POStateListDrawable with LayerDrawable created programatically not working on Android 4.0+
 

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  1. POStateListDrawable with LayerDrawable created programatically not working on Android 4.0+
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    <p>I am trying to create an option group with coloured squares for the user to choose one. It is working on a 3.2 device and looking like in this picture: <img src="https://i.stack.imgur.com/Y8Ak9.png" alt="enter image description here"></p> <p>The code is something like:</p> <pre><code>for (int i = 0; i &lt; COLORS.length; i++) { CheckBox box = new CheckBox(context); box.setBackgroundDrawable(getColorOption(context, COLORS[i])); box.setButtonDrawable(android.R.color.transparent); </code></pre> <p>And then, in the getColorOption function I create the StateListDrawable:</p> <pre><code> StateListDrawable slDrawable = new StateListDrawable(); LayerDrawable checkedDrawable = new LayerDrawable(new Drawable[] { new SelectFrameShapeDrawable(transparentColor, lightRedColor), new SquareShapeDrawable(color) }); LayerDrawable uncheckedDrawable = new LayerDrawable(new Drawable[] { new SelectFrameShapeDrawable(transparentColor, transparentColor), new SquareShapeDrawable(color) }); slDrawable.addState(new int[] { android.R.attr.state_checked }, checkedDrawable); slDrawable.addState(new int[] { -android.R.attr.state_checked }, uncheckedDrawable); return slDrawable; </code></pre> <p>The SquareShapeDrawable class is a ShapeDrawable:</p> <pre><code>public class SquareShapeDrawable extends ShapeDrawable { private final Paint fillpaint; public SquareShapeDrawable(int color) { super(new RectShape()); fillpaint = new Paint(this.getPaint()); fillpaint.setColor(color); } @Override protected void onDraw(Shape shape, Canvas canvas, Paint paint) { shape.draw(canvas, fillpaint); } } </code></pre> <p>And the SelectFrameShapeDrawable is:</p> <pre><code>private class SelectFrameShapeDrawable extends ShapeDrawable { private final Paint fillpaint, strokepaint; public SelectFrameShapeDrawable(int fill, int stroke) { super(new RectShape()); strokepaint = new Paint(this.getPaint()); strokepaint.setStyle(Paint.Style.STROKE); strokepaint.setStrokeWidth((int) (getResources() .getDisplayMetrics().density + 0.5f)); strokepaint.setColor(stroke); int padding = (int) (4 * getResources().getDisplayMetrics().density + 0.5f); setPadding(padding, padding, padding, padding); fillpaint = new Paint(strokepaint); fillpaint.setColor(fill); } @Override protected void onDraw(Shape shape, Canvas canvas, Paint paint) { if (strokepaint != null) shape.draw(canvas, strokepaint); shape.draw(canvas, fillpaint); } } </code></pre> <p>On a 4.2 device all the squares are black and do not change when checked: <img src="https://i.stack.imgur.com/rNHW3.png" alt="enter image description here"></p> <p>The problem seems to be when adding the drawables to the StateListDrawable... Any idea how to solve this? </p>
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    1. USTamás Cseh
    1. USVictor G
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