Is there anything similar to getsharekit.com for Android? It allows to share URL's to social networking sites. Is there anything similar to this or do I need to code separately for facebook, Twitter and email?
I don't know if that's what you mean but you can use the Android built-in sharing menu...
You can share a URL to Facebook, Twitter, Gmail and more (as long as the apps are installed on your device) using Intents:
Intent i = new Intent(Intent.ACTION_SEND);
i.setType("text/plain");
i.putExtra(Intent.EXTRA_SUBJECT, "Sharing URL");
i.putExtra(Intent.EXTRA_TEXT, "http://www.url.com");
startActivity(Intent.createChooser(i, "Share URL"));
If the app you want to share to is not installed on the user's device, for example - facebook, then you'll have to use Facebook SDK.
If you want your Activity to handle text data shared from other apps as well, you can add this to your AndroidManifest.xml:
<activity android:name=".ShareLink">
<intent-filter>
<action android:name="android.intent.action.SEND" />
<category android:name="android.intent.category.DEFAULT" />
<data android:mimeType="text/plain" />
</intent-filter>
</activity>
Hope this helps!