clear before redraw

apps/widanclk/ChangeLog

@@ -1 +1,2 @@
 0.01: New app
+0.02: Clear between redraws

apps/widanclk/metadata.json

@@ -1,7 +1,7 @@
 {
   "id": "widanclk",
   "name": "Analog clock widget",
-  "version": "0.01",
+  "version": "0.02",
   "description": "A simple analog clock widget that appears when not showing a fullscreen clock",
   "icon": "widget.png",
   "type": "widget",

apps/widanclk/widget.js

@@ -12,7 +12,8 @@ WIDGETS["wdanclk"]={area:"tl",width:Bangle.CLOCK?0:24,draw:function() {
   let x=this.x+12, y=this.y+12,
       ah = (d.getHours()+d.getMinutes()/60)*Math.PI/6,
       am = d.getMinutes()*Math.PI/30;
-  g.drawCircle(x, y, 11).
+  g.clearRect(this.x, this.y, this.x+this.width-1, this.y+23).
+    drawCircle(x, y, 11).
     drawLine(x,y, x+Math.sin(ah)*7, y-Math.cos(ah)*7).
     drawLine(x,y, x+Math.sin(am)*9, y-Math.cos(am)*9);
   // queue draw in one minute