I am upgradring an Android app from a target version of 2.3 (10) to 4.4 (19) but the Canvas Path draw does not work in the same way - and I can't find any docs saying what has changed.
I it regarding the grey semi transparent overlay - it should be like the first image(Target Android 2.3)
Target: Android 2.3 (10)
Target: Android 4.4 (19)
Here is the code:
public class ProgramItemBackgroundDrawable extends Drawable{
Paint paint = new Paint(Paint.ANTI_ALIAS_FLAG);
private int height;
private int width;
private int topViewHeight;
private boolean showBorder;
public ProgramItemBackgroundDrawable(){
paint.setStyle(Paint.Style.FILL_AND_STROKE);
paint.setStrokeWidth(1);
...
}
public void draw(Canvas canvas) {
int cornerCutSize = convertDpToPixels(20, context);
int smallCornerTopMargin = convertDpToPixels(4, context);
if (cornerCutSize > height)
cornerCutSize = height - smallCornerTopMargin;
drawBaseBackgroundColors(canvas, cornerCutSize);
int margin = convertDpToPixels(3, context);
paint.setColor(Color.BLACK);
paint.setAlpha((int) (255 * 0.12));
Path path = new Path();
if(showBorder){
//Marks bottom part of item with space around for the border
path.moveTo(margin, margin + topViewHeight);
path.lineTo(margin, height - margin);
path.lineTo(width - cornerCutSize, height - margin);
path.lineTo(width - margin, height - cornerCutSize);
path.lineTo(width - margin, margin + topViewHeight);
path.close();
//Marks bottom corner
path.moveTo(width - cornerCutSize, height);
path.lineTo(width, height - cornerCutSize);
path.lineTo(width, height);
path.close();
} else {
//Marks bottom part of item
path.moveTo(0, margin + topViewHeight);
path.lineTo(0, height);
path.lineTo(width, height);
path.lineTo(width, margin + topViewHeight);
path.close();
//Marks bottom corner if it overlaps with the top view area
if(height < (topViewHeight + margin + cornerCutSize)) {
int smallCornerCutSize = Math.abs((height - cornerCutSize) - topViewHeight - margin);
path.moveTo(width - smallCornerCutSize, margin + topViewHeight);
path.lineTo(width+1, margin + topViewHeight - smallCornerCutSize);
path.lineTo(width+1, margin + topViewHeight);
path.close();
}
}
path.setFillType(Path.FillType.INVERSE_WINDING);
canvas.drawPath(path, paint);
}
private void drawBaseBackgroundColors(Canvas canvas, int cornerCutSize) {
...
}
public static int convertDpToPixels(float dp, Context context){
Resources resources = context.getResources();
DisplayMetrics metrics = resources.getDisplayMetrics();
float px = dp * (metrics.densityDpi/160f);
return (int) px;
}
}
Any idea what has changed in the way android handles the drawing?
Update 1:
I think it might have something to do with the Hardware Acceleration changes in Api level 14
