Android card-io could not trigger auto focus

Question

I am using card.io-Android -SDk in my application when i run the app i am not able to focus camera

Error: could not trigger auto focus: java.lang.RuntimeException: autoFocus failed.

app passed NULL surface any help?

Answer 1

There are many cards that card.io will not successfully scan.

These include the newer style cards, which lack the traditional large, embossed card numbers. Even among traditional cards, there are some whose background color or pattern makes scanning difficult.

The issue is that the cards which dont have the embossed card numbers card.io wont scan.

Answer 2

write this code in your manifest file...

  <uses-feature
            android:name="android.hardware.camera.autofocus"
            android:required="false" />