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Google Associate Android Developer Practice Test - Questions Answers, Page 9

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Question 81

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What do you want from Room when you create a DAO method and annotate it with @Update? Example: @Dao public interface MyDao { @Update public void updateUsers(User... users); }

Question 82

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What do you want from Room when you create a DAO method and annotate it with @Delete? Example: @Dao public interface MyDao { @Delete public void deleteUsers(User... users); }

Question 83

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In Android 8.0, API level 26, some APIs regarding notification behaviors were moved from Notification to NotificationChannel. For example, what should we use instead of NotificationCompat.Builder.se

Question 84

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What method should we use with Notification.Builder to supply a PendingIntent to be sent when the notification is clicked?

Question 85

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When scheduling unique work, you must tell WorkManager what action to take when there is a conflict. You do this by passing an enum when enquing the work. For one-time work, you provide an Existing

Question 86

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If you are working with a Builder that creates a PeriodicWorkRequest to run periodically once within the flex period of every interval period. What statement is correct?

Question 87

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Custom duration in milliseconds as a parameter for the setDuration method is available when you are working with:

Question 88

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If constant LENGTH_INDEFINITE is used as a parameter for the setDuration method in Snackbar, what will happen?

Question 89

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What public methods are there in android.widget.Toast.Callback? (Choose two.)

Question 90

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Which build options in the Build menu to choose to delete all intermediate/cached build files.

Question 81

What do you want from Room when you create a DAO method and annotate it with @Update?

Example:

@Dao

public interface MyDao { @Update

public void updateUsers(User... users); }

Room generates an implementation that inserts all parameters into the database in a single transaction.

Room modifies a set of entities, given as parameters, in the database. It uses a query that matches against the primary key of each entity.

Room removes a set of entities, given as parameters, from the database. It uses the primary keys to find the entities to delete.

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Question 82

What do you want from Room when you create a DAO method and annotate it with @Delete?

Example:

@Dao

public interface MyDao { @Delete

public void deleteUsers(User... users); }

Room generates an implementation that inserts all parameters into the database in a single transaction.

Room modifies a set of entities, given as parameters, in the database. It uses a query that matches against the primary key of each entity.

Room removes a set of entities, given as parameters, from the database. It uses the primary keys to find the entities to delete.

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In Android 8.0, API level 26, some APIs regarding notification behaviors were moved from Notification to NotificationChannel. For example, what should we use instead of NotificationCompat.Builder.setPriority() for Android 8.0 and higher?

NotificationChannel.setPriority()

NotificationChannel.setImportance()

NotificationCompat.Builder.setImportance()

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Question 84

What method should we use with Notification.Builder to supply a PendingIntent to be sent when the notification is clicked?

setContentInfo

setContentIntent

setDeleteIntent

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Question 85

When scheduling unique work, you must tell WorkManager what action to take when there is a conflict. You do this by passing an enum when enquing the work.

For one-time work, you provide an ExistingWorkPolicy, which supports some options for handling the conflict. (Choose four.)

REPLACE (existing work with the new work. This option cancels the existing work)

KEEP (existing work and ignore the new work)

APPEND (the new work to the end of the existing work. This policy will cause your new work to be chained to the existing work, running after the existing work finishes)

APPEND_OR_REPLACE (functions similarly to APPEND, except that it is not dependent on prerequisite work status. If the existing work is CANCELLED or FAILED, the new work still runs)

APPEND_OR_KEEP (functions similarly to APPEND, except that it is not dependent on prerequisite work status. If the existing work is CANCELLED or FAILED, the new work still not runs)

APPEND_AND_RUN (functions similarly to APPEND, except that it is not dependent on prerequisite work status. If the existing work is PAUSED, the new work still runs)

DESTROY (if any work exists, the new work will be ignored)

APPEND_OR_DESTROY (if no any work exists, the new work will be ignored)

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Question 86

If you are working with a Builder that creates a PeriodicWorkRequest to run periodically once within the flex period of every interval period. What statement is correct?

The repeat interval must be greater than PeriodicWorkRequest.MIN_PERIODIC_INTERVAL_MILLIS and the flex interval must be greater than PeriodicWorkRequest.MIN_PERIODIC_FLEX_MILLIS.

The repeat interval must be lower than or equal to PeriodicWorkRequest.MIN_PERIODIC_INTERVAL_MILLIS and the flex interval must be lower than or equal to PeriodicWorkRequest.MIN_PERIODIC_FLEX_MILLIS.

The repeat interval must be greater than or equal to PeriodicWorkRequest.MIN_PERIODIC_INTERVAL_MILLIS and the flex interval can be anything in relation to PeriodicWorkRequest.MIN_PERIODIC_FLEX_MILLIS.

The repeat interval must be greater than or equal to PeriodicWorkRequest.MIN_PERIODIC_INTERVAL_MILLIS and the flex interval must be greater than or equal to PeriodicWorkRequest.MIN_PERIODIC_FLEX_MILLIS.

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