title: Unfortunately App has Stopped - android.os.NetworkOnMainThreadException
body: <p>I am writing an App in which i am allowing user to enter their details, but i am getting an error, whenever user click on Submit Button, error says : <strong>Unfortunately App has Stopped</strong></p>
  
  <p><em>android.os.NetworkOnMainThreadException</em></p>
  
  <p><strong>Logcat Says:</strong></p>
  
  <pre><code>04-11 14:25:07.297: E/AndroidRuntime(971): FATAL EXCEPTION: main
  04-11 14:25:07.297: E/AndroidRuntime(971): android.os.NetworkOnMainThreadException
  04-11 14:25:07.297: E/AndroidRuntime(971):  at android.os.StrictMode$AndroidBlockGuardPolicy.onNetwork(StrictMode.java:1117)
  04-11 14:25:07.297: E/AndroidRuntime(971):  at libcore.io.BlockGuardOs.connect(BlockGuardOs.java:84)
  04-11 14:25:07.297: E/AndroidRuntime(971):  at libcore.io.IoBridge.connectErrno(IoBridge.java:127)
  04-11 14:25:07.297: E/AndroidRuntime(971):  at libcore.io.IoBridge.connect(IoBridge.java:112)
  04-11 14:25:07.297: E/AndroidRuntime(971):  at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:192)
  04-11 14:25:07.297: E/AndroidRuntime(971):  at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:459)
  04-11 14:25:07.297: E/AndroidRuntime(971):  at java.net.Socket.connect(Socket.java:842)
  04-11 14:25:07.297: E/AndroidRuntime(971):  at org.apache.http.conn.scheme.PlainSocketFactory.connectSocket(PlainSocketFactory.java:119)
  04-11 14:25:07.297: E/AndroidRuntime(971):  at org.apache.http.impl.conn.DefaultClientConnectionOperator.openConnection(DefaultClientConnectionOperator.java:144)
  04-11 14:25:07.297: E/AndroidRuntime(971):  at org.apache.http.impl.conn.AbstractPoolEntry.open(AbstractPoolEntry.java:164)
  04-11 14:25:07.297: E/AndroidRuntime(971):  at org.apache.http.impl.conn.AbstractPooledConnAdapter.open(AbstractPooledConnAdapter.java:119)
  04-11 14:25:07.297: E/AndroidRuntime(971):  at org.apache.http.impl.client.DefaultRequestDirector.execute(DefaultRequestDirector.java:360)
  04-11 14:25:07.297: E/AndroidRuntime(971):  at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:555)
  04-11 14:25:07.297: E/AndroidRuntime(971):  at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:487)
  04-11 14:25:07.297: E/AndroidRuntime(971):  at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:465)
  04-11 14:25:07.297: E/AndroidRuntime(971):  at com.erachnida.restaurant.versionoct.cart.RegistrationActivity.getHttpPost(RegistrationActivity.java:183)
  04-11 14:25:07.297: E/AndroidRuntime(971):  at com.erachnida.restaurant.versionoct.cart.RegistrationActivity.SaveData(RegistrationActivity.java:135)
  04-11 14:25:07.297: E/AndroidRuntime(971):  at com.erachnida.restaurant.versionoct.cart.RegistrationActivity$1.onClick(RegistrationActivity.java:49)
  04-11 14:25:07.297: E/AndroidRuntime(971):  at android.view.View.performClick(View.java:4202)
  04-11 14:25:07.297: E/AndroidRuntime(971):  at android.view.View$PerformClick.run(View.java:17340)
  04-11 14:25:07.297: E/AndroidRuntime(971):  at android.os.Handler.handleCallback(Handler.java:725)
  04-11 14:25:07.297: E/AndroidRuntime(971):  at android.os.Handler.dispatchMessage(Handler.java:92)
  04-11 14:25:07.297: E/AndroidRuntime(971):  at android.os.Looper.loop(Looper.java:137)
  04-11 14:25:07.297: E/AndroidRuntime(971):  at android.app.ActivityThread.main(ActivityThread.java:5039)
  04-11 14:25:07.297: E/AndroidRuntime(971):  at java.lang.reflect.Method.invokeNative(Native Method)
  04-11 14:25:07.297: E/AndroidRuntime(971):  at java.lang.reflect.Method.invoke(Method.java:511)
  04-11 14:25:07.297: E/AndroidRuntime(971):  at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:793)
  04-11 14:25:07.297: E/AndroidRuntime(971):  at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:560)
  04-11 14:25:07.297: E/AndroidRuntime(971):  at dalvik.system.NativeStart.main(Native Method)
  </code></pre>