Asynchronous Processes and Threading Quiz
30 Questions
2 Views

Choose a study mode

Play Quiz
Study Flashcards
Spaced Repetition
Chat to lesson

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

What lifecycle hook can be used to check the orientation every time the component becomes active?

  • componentWillMount (correct)
  • componentDidMount
  • componentDidUpdate
  • componentWillUpdate

    • Which property can be set in the View to call a function when a layout is triggered?

  • onCheck
  • onPress
  • onLayout (correct)
  • onRender

    • In React Native, what type of View can be used to display external content from a webpage?

  • WebView (correct)
  • ScrollView
  • Modal
  • ImageBackground

    • What library in React Native is used for linking external sites or other apps on the device?

    <p>Linking</p> Signup and view all the answers

    When using static URLs with WebView, what property is set with the URL of the webpage to display?

    <p>url</p> Signup and view all the answers

    In React Native, what navigation element is used in the example to switch between a list of buttons and a WebView?

    <p>StackNavigator</p> Signup and view all the answers

    What is the main benefit of using an asynchronous process in programming?

    <p>Avoiding holding up the entire program for one long step</p> Signup and view all the answers

    In what scenario would using an asynchronous process NOT be beneficial?

    <p>When immediate completion of all tasks is required</p> Signup and view all the answers

    What role does the call back function play in an asynchronous process?

    <p>It alerts the main thread about the completion of the asynchronous task</p> Signup and view all the answers

    How does threading help in implementing an asynchronous process?

    <p>By delegating tasks to another thread, allowing them to run concurrently</p> Signup and view all the answers

    Which statement best describes the purpose of starting an asynchronous process in a main thread?

    <p>To allow the main thread to continue executing without waiting for the asynchronous task to complete</p> Signup and view all the answers

    When would a program benefit from using synchronous processing instead of asynchronous processing?

    <p>When real-time responses are required</p> Signup and view all the answers

    What is the purpose of the 'Activity Life Cycle' in Android development?

    <p>To manage the creation and destruction of activities in the app</p> Signup and view all the answers

    How do Android life cycles differ from the general sequence of events mentioned in the text?

    <p>Android life cycles refer to a set of steps within the Main Loop phase for each view</p> Signup and view all the answers

    What analogy is used to describe the Android life cycles in relation to threads?

    <p>Android life cycles are akin to individual threads within a larger sequence</p> Signup and view all the answers

    What role does the 'Activity class' play in Android development?

    <p>It creates windows for UI elements and interacts with users</p> Signup and view all the answers

    In which phase of the app's life cycle does the 'Activity Life Cycle' become crucial?

    <p>Main Loop phase</p> Signup and view all the answers

    How can the 'Activity Life Cycle' be defined in Android terms?

    <p>'Activity Life Cycle' denotes handling activities and UI interaction in Android apps</p> Signup and view all the answers

    What are the main folders in the Data Container for storing data?

    <p>Documents, Library, Temp</p> Signup and view all the answers

    What is the primary advantage of using remote storage?

    <p>Ability to access data from any device</p> Signup and view all the answers

    Why is setting up remote storage more complicated than local storage?

    <p>Requires networking setup</p> Signup and view all the answers

    What is the major disadvantage of relying on remote storage for data?

    <p>Dependence on network connection</p> Signup and view all the answers

    In what scenario can remote storage be particularly beneficial for users?

    <p>When users need access to their data across different devices</p> Signup and view all the answers

    How does remote storage typically compare to local storage in terms of capacity?

    <p>Remote storage is often larger</p> Signup and view all the answers

    What is the recommended approach when the network connection drops?

    <p>Save any changes the User makes and POST them after connection is restored</p> Signup and view all the answers

    What is the purpose of having a variable in state to track the network connection status?

    <p>To track if the user is online or offline</p> Signup and view all the answers

    What role does the NetInfo package play in syncing data?

    <p>It determines the network state and notifies when it changes</p> Signup and view all the answers

    Why is it important to use lifecycle hooks when detecting changes made by the User?

    <p>To ensure immediate response to any user action</p> Signup and view all the answers

    What does setting a flag for queued changes help achieve in the sync process?

    <p>Helps in identifying which changes need to be re-sent after connection restoration</p> Signup and view all the answers

    What role does the callback function play in handling queued changes during connection restoration?

    <p>Calls the POST function to submit any queued changes</p> Signup and view all the answers

    More Like This

    Use Quizgecko on...
    Browser
    Open
    Browser
    Browser