Custom Filetype In Android Not Working

I'm currently writing an Android App and it should open Files with the ending .meetme Actually it should open them directly from Gmail, but I don't think that is possible. This is

Solution 1:

After a lot of trial and error and reading nearly everything I could find, here's what finally worked for me:

    <activity android:name=".DrawActivity"
              android:screenOrientation="portrait"
              android:label="@string/app_name">
        <intent-filter>
            <action android:name="android.intent.action.MAIN"/>
            <category android:name="android.intent.category.LAUNCHER"/>
        </intent-filter>
        <intent-filter>
            <action android:name="android.intent.action.VIEW"/>
            <action android:name="android.intent.action.EDIT"/>
            <category android:name="android.intent.category.DEFAULT"/>
            <data android:pathPattern="*.snowdragon"/>
            <data android:mimeType="text/snowdragon"/>
        </intent-filter>
    </activity>