on android app: send intent for PosLink (fixes #437)

code/utils_misc.js

@@ -107,11 +107,15 @@ window.rangeLinkClick = function() {
 }
 
 window.showPortalPosLinks = function(lat, lng) {
+  if (android && android.intentPosLink) {
+    android.intentPosLink('https://maps.google.com/?q='+lat+','+lng);
+  } else {
     var qrcode = '<div id="qrcode"></div>';
     var script = '<script>$(\'#qrcode\').qrcode({text:\'GEO:'+lat+','+lng+'\'});</script>';
     var gmaps = '<a href="https://maps.google.com/?q='+lat+','+lng+'">gmaps</a>';
     var osm = '<a href="http://www.openstreetmap.org/?mlat='+lat+'&mlon='+lng+'&zoom=16">OSM</a>';
     alert('<div style="text-align: center;">' + qrcode + script + gmaps + ' ' + osm + '</div>');
+  }
 }
 
 window.reportPortalIssue = function(info) {

mobile/AndroidManifest.xml

@@ -2,10 +2,10 @@
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
 	package="com.cradle.iitc_mobile"
 	android:versionCode="1"
-	android:versionName="0.2" >
+	android:versionName="0.2.1" >
 
 	<uses-sdk
-		android:minSdkVersion="11"
+		android:minSdkVersion="14"
 		android:targetSdkVersion="17" />
 
 	<uses-permission android:name="android.permission.INTERNET" />

mobile/src/com/cradle/iitc_mobile/IITC_JSInterface.java

@@ -0,0 +1,25 @@
+package com.cradle.iitc_mobile;
+
+import android.content.Context;
+import android.content.Intent;
+import android.net.Uri;
+import android.webkit.JavascriptInterface;
+
+// provide communication between IITC script and android app
+public class IITC_JSInterface {
+
+	// context of main activity
+	Context context;
+
+	IITC_JSInterface(Context c) {
+		context = c;
+	}
+
+	// send intent for gmaps link
+	@JavascriptInterface
+	public void intentPosLink(String s) {
+		Intent intent = new Intent(android.content.Intent.ACTION_VIEW,
+				Uri.parse(s));
+		context.startActivity(intent);
+	}
+}

mobile/src/com/cradle/iitc_mobile/IITC_WebView.java

@@ -13,6 +13,7 @@ public class IITC_WebView extends WebView {
 
 	private WebSettings settings;
 	private IITC_WebViewClient webclient;
+	private IITC_JSInterface js_interface;
 
 	// init web view
 	private void iitc_init(Context c) {
@@ -21,6 +22,8 @@ public class IITC_WebView extends WebView {
 		settings.setDomStorageEnabled(true);
 		settings.setAllowFileAccess(true);
 		settings.setGeolocationEnabled(true);
+		this.js_interface = new IITC_JSInterface(c);
+		this.addJavascriptInterface(js_interface, "android");
 
 		// our webchromeclient should share geolocation with the iitc script
 		// allow access by default
@@ -59,4 +62,8 @@ public class IITC_WebView extends WebView {
 		return this.webclient;
 	}
 
+	public IITC_JSInterface getJSInterface() {
+		return this.js_interface;
+	}
+
 }