Android: How to interact with the default Contacts application

I am new and trying to make a code that when a user selects a contact and hits the call button, the user is presented with a pop-up dialog that has two choices; In detail, one is to call using the standard dialer and another one is just another selection for the user.

However, I have no idea how to even interact with th开发者_如何学运维e default contacts application. I heard that 'sipdroid' has a similar application but still don't have any idea.

If anybody knows how to do it or has a good tutorial for this, would you please help me?

try this.

<activity android:label="@string/app_name" android:name=".YourActivity"
            android:screenOrientation="portrait" android:clearTaskOnLaunch="true">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />
                <category android:name="android.intent.category.LAUNCHER"></category>
                <category android:name="android.intent.category.DEFAULT"></category>
            </intent-filter>
            <intent-filter>
                <action android:name="android.intent.action.CALL_BUTTON"></action>
                <category android:name="android.intent.category.DEFAULT"></category>
            </intent-filter>


        </activity>

when you press call button of device then user see two choice ..

1) in-built contacts.
2)your app