gbinghan[dev-blog]

The Problem Apple's Safari web browser is configured to block third-party cookies by default, unless the user has had prior interactions with the third-party domain: http://webpolicy.org/2012/02/17/safari-trackers/ The Solution The idea is simple, just make sure the user visits the iframe domain (in this example, B.com) at least once. One way is to run a popup that visits B.com (and set the P3P header ), then close the popup. On the parent window: var win = window.open(' http://B.com /startsession.php', '_blank', 'height=200,width=150'); setTimeout(function() { win.close(); // close it after 1 second :) }, 1000); Then in the startsession.php , just set the header will do <?php header('P3P: CP="IDC DSP COR CURa ADMa OUR IND PHY ONL COM STA"'); session_start(); Done. References: http://webpolicy.org/2012/02/17/safari-trackers/ http://anantgarg.com/2010/02/18/cross-domain-cookies-in-safari/ http://anantgarg...

Source code: Github (branch "step-1") Step 1: Setup an Android Project Android ChatHead requires " SYSTEM_ALERT_WINDOW " permission which is available since  API level 1 , so minimum API 7 is fine. Just next, next next... and create a blank activity :) Step 2: Add ChatHead Service If you want to know more details about ChatHead service. Read this article by Pierre-Yves Ricau . Create a ChatHead Class that extends Service . /java/com/ gbinghan /androidchathead/ChatHeadService.java Create ChatHead layout file. /res/layout/service_chat_head.xml Add ChatHeadService to AndroidManifest.xml <service android:name="com. gbinghan .androidchathead.ChatHeadService" ></service> Add SYSTEM_ALERT_WINDOW to AndroidManifest.xml <uses-permission android:name="android.permission.SYSTEM_ALERT_WINDOW" /> Your AndroidManifest.xml should look like this . Step 3: Add a button to launch the service :) ...

Been searching for ways to calculate rectangle area with google.maps.geometry.spherical.computeArea(), but hard to find. Here's the snippet of the code I found on stackoverflow . Hope this helps those who are looking for the ways to use computeArea() without resolving to ugly/complex self-created methods. :)