The method http.post **works on the emulator**, but when I run this on real android phone it doesn't work.

**Android permission already added.**

Main AndroidManifest.xml :

```
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.example.niceapp">

    <uses-permission android:name="android.permission.INTERNET"/>..
    ...
    ...

```

**What could be the problem?**