How can I set an icon for my custom mimetype

I have created a new mimetype, it works very well with file browser, and it open my activity, but it displayed as unknown icon on file browser, I use ASTRO file browser. I have added开发者_开发百科 an icon for the intent, but it still appears as unknown icon this is my code

    <activity android:name=".SharedActivity" android:label="@string/app_name"
        android:screenOrientation="portrait">
        <intent-filter android:icon="@drawable/icon" android:label="swv">
            <action android:name="android.intent.action.VIEW" />
            <category android:name="android.intent.category.DEFAULT" />
        </intent-filter>
        <intent-filter android:icon="@drawable/icon" android:label="swv">
            <action android:name="android.intent.action.VIEW" />
            <category android:name="android.intent.category.BROWSABLE" />
            <category android:name="android.intent.category.DEFAULT" />
            <data android:scheme="http" />
            <data android:host="*" />
            <data android:pathPattern=".*\\.swv" />
        </intent-filter>
        <intent-filter android:icon="@drawable/icon" android:label="swv">
            <action android:name="android.intent.action.VIEW" />
            <category android:name="android.intent.category.BROWSABLE" />
            <category android:name="android.intent.category.DEFAULT" />
            <data android:scheme="http" />
            <data android:host="*" />
            <data android:mimeType="application/swv" />
        </intent-filter>
        <intent-filter android:icon="@drawable/icon" android:label="swv">
            <action android:name="android.intent.action.VIEW" />
            <category android:name="android.intent.category.DEFAULT" />
            <data android:scheme="file" />
            <data android:host="*" />
            <data android:pathPattern=".*\\.swv" />
        </intent-filter>

    </activity>

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Try putting the icon on the <activity> element, instead of (or in addition to) on the <intent-filter> elements.