IAPMiniProgram SDK provides the ability to customize whether to intercept the physical return/back button press events. Follow this topic to realize this ability by implementing the specific interface of IAPMiniProgram SDK.

Procedures

To realize the customization, follow these steps:

Step 1. Implement the GriverInterceptBackEventExtension interface

Implement the GriverInterceptBackEventExtension interface and write code in the required methods according to your business logic. See the following example for how to implement this interface.

class CustomInterceptBackEventExtension : GriverInterceptBackEventExtension {
    override fun intercept(appNode: AppNode?): Boolean {
        //customize the business logic
        return true
    }
}

Step 2. Register the CustomInterceptBackEventExtension class

Refer to the following sample code and call the registerExtension interface to register the CustomInterceptBackEventExtension class after initializing the SDK.

IAPConnect.init(application, initConfig, object : InitCallback {
    override fun onSuccess() {
        //···
        Griver.registerExtension(
            GriverExtensionManifest(
                GriverInterceptBackEventExtension::class.java,
                CustomInterceptBackEventExtension()
            )
        )
    }
})

Interface

GriverInterceptBackEventExtension interface

The definition of this interface is shown as the following codes:

interface GriverInterceptBackEventExtension : GriverExtension {
    fun intercept(appNode: AppNode?): Boolean
}

Based on the definition, this interface provides the following methods:

Methods

intercept method