How to run android program without open the app?

Question

My app can be opened by NFC, and then use the information in the tag to do some processing, the processing is around 5 seconds.

If my app is opened by NFC, I don\'t want

Answer 1

In your manifest.xml you can specify set the following theme for your activity:

android:theme="@android:style/Theme.Translucent.NoTitleBar"

This makes your activity invisible (if it's empty).