voldisp: new app that displays volume change on Android device

apps/voldisp/ChangeLog

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+0.01: New App!

apps/voldisp/boot.js

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+{
+  let timeout;
+  let onMusicVolume = (volPercent)=>{
+    if (timeout) {clearTimeout(timeout); timeout=undefined;}
+
+    if (Bangle.CLOCK) {
+      let barWidth = g.getWidth()*volPercent/100;
+      g.
+        setColor(0x0000).fillRect(0,0,g.getWidth(),24).
+        setColor(0xF800).fillRect(0,0,barWidth,19).
+        setColor(0xFFFF).setFont("12x20").setFontAlign(1,-1).
+        drawString("volume",barWidth,1);
+
+      let goAway = ()=>{
+        let isAllWidgetsHidden = true;
+        for (var w of global.WIDGETS) {
+          if (!w._draw) {
+            isAllWidgetsHidden = false;
+            break;
+          }
+        }
+
+        if (global.WIDGETS && !isAllWidgetsHidden) {
+          Bangle.drawWidgets();
+        } else if (Bangle.uiRedraw) {
+          Bangle.uiRedraw();
+        } else {
+          Bangle.load();
+        }
+      };
+      timeout = setTimeout(goAway, 3*1000);
+    }
+  };
+  Bangle.on("musicVolume", onMusicVolume);
+  //GB({t:"audio",v:10});
+}

apps/voldisp/metadata.json

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+{ "id": "voldisp",
+  "name": "Display Volume for Android",
+  "version":"0.01",
+  "description": "Display the media volume of your android device when it's changed. A bar shows up at the top of your Bangles screen. (Needs recent Gadgetbridge nightly or stable ver. 85 once out)",
+  "icon": "app.png",
+  "tags": "audio,media,android,volume,sound",
+  "type": "bootloader",
+  "supports" : ["BANGLEJS2"],
+  "screenshots" : [
+    { "url":"screenshot.png" }
+  ],
+  "storage": [
+    {"name":"voldisp.boot.js","url":"boot.js"}
+  ]
+}