Increase Whatsapp trail period

Now whatsapp is increasing by more users since it has more advantage like an instant messenger which deliver your message immediately you send it and receive message immediately you sent message.It also allow you to send multimedia message such as voice record,video,video record,audio,image etc., but we all know every whatsapp users are entitled to 1 year free trial period before the person will be subsequently paying after trail ends.

I strongly recommend doing this when your whatsapp is a day to expire but you can still use it now. Faster enough the better it is.

Below will explain how to extend whatsapp usage.

Its available for the following devices.

 — S40 Java C3-00 / C3-01 / X2-00 / X2-01 / X3-02 / 201 / 300 / 302 / 303 / 306 / 311
— Symbian: X7 · E6 · N8 · C6 · C7 · E7 · 500 · 600 · 603 · 700 · 701 · 808
— S60 5th edition: Nokia 5800 · Nokia 5530 · Nokia 5230 · Nokia 5233 · Nokia 5235 · Nokia N97 · Nokia N97 mini · Nokia X6 · Nokia X5-01 · Nokia C6 · Nokia C5-03 · Samsung i8910 Omnia HD · Sony Ericsson Satio · Sony Ericsson Vivaz · Sony Ericsson Vivaz Pro
— S60 3rd edition: Nokia 5700 · Nokia 6110 · Nokia 6120 · Nokia 6121 · Nokia 6124 · Nokia 6700 · Nokia 6290 · Nokia E51 · Nokia E63 · Nokia E66 · Nokia E71 · Nokia E90 Communicator · Nokia N76 · Nokia N81 · Nokia N81 8GB · Nokia N82 · Nokia N95 · Nokia N95 8GB · Nokia 5320 · Nokia 5630 · Nokia 5730 · Nokia 6210 · Nokia 6220 · Nokia 6650 fold · Nokia 6710 Navigator · Nokia 6720 · Nokia 6730 · Nokia 6760 Slide · Nokia 6790 Surge · Nokia C5 · Nokia E52 · Nokia E55 · Nokia E72 · Nokia E73 · Nokia E75 · Nokia E5 · Nokia N78 · Nokia N79 · Nokia N85 · Nokia N86 8MP · Nokia N96 · Samsung GT-i8510 · Samsung GT-I7110 · Samsung SGH-L870 · Samsung SGH-G810 · Samsung SGH-iNNN

Note: Since there are so many devices,some device may also support which is not in this list.Just try it.

Step 1:
Open your whatsapp and press Option > About > Account Info > Option > Delete Account

Step 2:
A page will be displayed telling you to enter your mobile number and telling you what will happen. 

 Delete All Your Whatsapp Service Payment Information

Step 3:

Then press continue after you enter your phone number and follow the next steps to complete deletion.

Step 4:

Now trial is gone but you are no more on whatsapp. Read on.

Open whatsapp back and register as normal as you do before by entering and confirming your phone number.

Step 5:

After successful registration, you get one more year free. Check the status again as explained above in the first place.

Step 6:
Finished.. all you need to do to get rid of the trial.

Game physics with Liquid Fun in android

Liquid Fun

LiquidFun is a 2D rigid body simulation library for games. Programmers can use it in their games to make objects move in realistic ways and make the game world more interactive

Physics Engine:

A system for generating procedural animations deals with physical process especially collisions. Doesn't
include rendering code.

Supporting Platforms :

Android

OSX

Windows

Particle Characteristics:

Color

Size

Position

Velocity

Strength

Creating a particle:

   b2ParticleDef pd;
   pd.flags = b2_elasticParticle;
   pd.color.Set(0, 0, 255, 255);
   pd.position.Set(i, 0);
   int tempIndex = m_world->CreateParticle(pd);




Particle Groups:

Create and destroy many particles at once.
Add Properties as Rotational angle,velocity, strength

Creating Particle Groups:

Create a shape
Create particular group definition object
Create the group

A sample code to demonstrate about creating and destroying particle:

Group creation code:

   b2ParticleGroupDef pd;
   b2PolygonShape shape;
   shape.SetAsBox(10, 5);
   pd.shape = 
   pd.flags = b2_elasticParticle;
   pd.angle = -0.5f;
   pd.angularVelocity = 2.0f;
   for (int32 i = 0; i < 5; i++)
   {
      pd.position.Set(10 + 20 * i, 40);
      pd.color.Set(i * 255 / 5, 255 - i * 255 / 5, 128, 255);
      world->CreateParticleGroup(pd);
      m_world->CreateParticleGroup(pd);
   }

Particle destroy:

   b2ParticleGroup* group = m_world->GetParticleGroupList();
   while (group)
   {
      b2ParticleGroup* nextGroup = group->GetNext(); // access this before we destroy the group
      m_world->DestroyParticleGroup(group);
      group = nextGroup;
   }




Source: 




http://google.github.io/liquidfun/Programmers-Guide/html/index.html

https://github.com/google/liquidfun













Android Kitkat 4.4 features

Android kitkat 4.4 released on October 31st with special features.

1. Low memory support even in 512 Ram. This includes new Api ActivityManager.isLowRamDevice() which let's your app's behaviour to match target device's memory.

2. NFC through Host Card Emulation: Android 4.4 introduces Host card Emulation where it's based on Smart card that uses contactless protocol for transmission.

3.Sms Provider: The new APIs use  new SMS_Deliver intent to allow app developers to route messages through the user’s default messaging app, making the cross-app experience seamless.

4.New Sensor Modes and Connectivity:  Hardware Sensor Batching is a new optimization that dramatically reduce power consumption during ongoing sensor activities.

5. Improved Security: Allows Antivirus Scanner api,control over individual app permissions.  KitKat also improves upon the cryptographic algorithms by adding support for two additional algorithms.

6.Chromium Webview: Android 4.4 includes a completely new implementation of WebView that's based on Chromium.Chromium WebView provides broad support for HTML5, CSS3, and JavaScript. It supports most of the HTML5 features available in Chrome for Android 30. It also brings an updated version of the JavaScript Engine (V8) that delivers dramatically improved JavaScript performance.

7.Screen Recording:  Android 4.4 adds support for screen recording and provides a screen recording utility that lets you start and stop recording on a device that's connected to your Android SDK environment over USB. It's a great new way to create walkthroughs and tutorials for your app, testing materials, marketing videos etc.,If your app plays video or other protected content that you don’t want to be captured by the screen recorder, you can useSurfaceView.setSecure() to mark the content as secure.