Android SMS Sending behavior

I 've developed on SMS sending application for Android devices. A pop up opens up asking to choose sms applications (native app or mine ), whenever I try to send SMS to contact already present in Contact Book on my android device. But in case, if I try to resend a 开发者_Go百科SMS already present in sms box in android device, no such pop up opens up ?

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Used this intent filter and my problem got solved

<intent-filter>
  <action android:name="android.intent.action.VIEW" />
  <category android:name="android.intent.category.DEFAULT" />
  <data android:mimeType="vnd.android-dir/mms-sms" />
</intent-filter>