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Update the
AndroidManifest.xml
 File

To support a large heap size and ensure the necessary permissions for the Default UI, update your
AndroidManifest.xml
 file. Enabling a larger heap is essential for scenarios where terminal updates require the handling and transfer of large volumes of data.
WARNING
Do not enable automatic backup in your app's
AndroidManifest
 file. The Tap to Pay on Android SDK uses the Android Keystore to install and store cryptographic keys in your app. Using automatic backup restores the default encryption preferences and causes a functionality error in the Tap to Pay on Android SDK.
Follow these steps to update your
AndroidManifest.xml
 file:
  1. Set the
    android:allowBackup
     attribute to
    false
     and the
    android:largeHeap
     attribute to
    true
    .
    <application
    ...
    android:allowBackup="false"
    android:largeHeap="true"
    >
    ...
</application>
  2. Enable the needed permissions for the Default UI.
    <manifest ... >
    ...
    <!-- Needed for Default UI ! -->
    <uses-permission android:name="android.permission.INTERNET"/>
    <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE"/>
    <uses-permission android:name="android.permission.READ_PHONE_STATE"/>                   
    ...
</manifest>
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