The user and provider of the service card do not require permanent operation, and when it is necessary to add, remove, or request to update the card, the card management service will pull up the card provider to obtain the card information.
The following description of the basic components of the ArkTS declarative development paradigm is correct
Which of the following functions does the HarmonyOS network management module provide?
If a developer uses the startAbility() method provided in Ability to start a Service, what are the correct descriptions of starting the Service?
In order to put a series of related download tasks into a task group, a developer uses the following code:
String dispatcherName =
"parallelTaskDispatcher";
TaskDispatcher dispatcher =
createParallelTaskDispatcher(dispatcherName,TaskPriority.DEFAULT);
Group group
=dispatcher.createDispatchGroup();
dispatcher.asyncGroupDispatch(group,new
Runnable(){
@Override
public void run(){
HiLog.info(LABEL_LOG,"download taskl is
running ");
}
});
dispatcher.groupDispatchlotify(group,new
Runnable(){
@0verride
public void run(){
HiLog.info(LABEL_L0G,"the close task2 is
running");
}
});
dispatcher.groupDispatchlotify(group,new
Runnable(){
@Override
public void run(){
HiLog.info(LABEL_L0G, "the close task is
running after all tasks in the group are
completed");
}
});
If the developer runs this code, which of the following results might occur?
Regarding the Tabs component and the TabContent component, the following description is correct
Which of the following component hierarchies are correct
What services will be automatically activated after a HarmonyOS Cloud development project is created?
Which of the following methods can a developer use to obtain the actual pixel size corresponding to 8VP on the current device?
Which of the following can set the rounded corner effect of the ShapeElement?
A developer has multiple versions of the object-relational mapping database, and the developer calls the BOOKstoreUpgrade class to upgrade the database version, and the version number of the BOOKstoreUpgrade class is configured as "3", and the actual version number of the current BOOKstore.db is "1", in this case, TestormMigration12, TestormMigration23 The onMigration method is automatically called to complete the database upgrade.
Which of the following functions is a lifecycle function for a custom component?
Mobile terminal devices have penetrated into all aspects of people's daily life, such as checking the weather, news and anecdotes of the city, traveling taxi, travel navigation, and sports records. These accustomed activities are inseparable from locating the location of the user's terminal equipment. What positioning technologies does HarmonyOS's location services subsystem provide?
What are the scenario-based capabilities included in the HarmonyOS feature?
What are the features of Huawei DevEco Studio, which is a multi-device unified development environment?
PDF + Testing Engine
|
---|
$66 |
Testing Engine
|
---|
$50 |
PDF (Q&A)
|
---|
$42 |
Huawei Free Exams |
---|
![]() |