Code Blocks

Code blocks is a powerful way to run custom logic for different variations. For tests that are not based on existing variables of your app, code block offers a developer-friendly approach to test different variations.

The VWO SDK identifies a test by its campaign key. The campaign key should match the key you created when you set up the A/B test in the VWO web portal.

The VWO.getVariationNameForTestKey(String testKey) function returns the name of the variation you created in VWO web portal.

String variationName = VWO.getVariationNameForTestKey("campaign_key");
if (variationName != null && variationName.equals("Control")) {
   // code for Control variation
} else if(variationName != null && variationName.equals("Variation 1")) {
   // code for Variation 1
} else {
   // default case
}

val variationName = VWO.getVariationNameForTestKey("campaign_key")
if (variationName != null && variationName == "Control") {
  // code for Control variation
} else if (variationName != null && variationName == "Variation 1") {
  // code for Variation 1
} else {
  // default case
}

The variation name should match the name you used in VWO web portal.
Use the last else or default section to code the behaviour of your app if this A/B test is not running.
If your control and default behaviour are same, you can remove the control condition.