Using Explicit Want to Start an Ability
When a user touches a button in an application, the application often needs to start a UIAbility component to complete a specific task. If the abilityName and bundleName parameters are specified when starting a UIAbility, then the explicit Want is used. Using Explicit Want
The user touches a button in the application to start the UIAbility component to complete a specific task. To start the UIAbility component in explicit Want mode, the abilityName and bundleName parameters must be specified. For details, see Starting UIAbility in the Same Application.