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AND-801
Android Application Development v8 Questions and Answers

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90% Average Score

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Questions # 1:

The following Android code will show the small popup message "Message saved as draft" for 3.5 seconds, and then automatically disappears: Toast.makeText(this, "Message saved as draft". Toast.LENGTH_LONG).show()

Options:

True

False

Answer

Questions # 2:

Check the following image, and then select which of the following choices is the correct Android method to add a marker on Google maps?

Question # 2

Options:

GoogleMap.MARkerlist

GoogleMap.addMarker

GoogleMap-Markerpost

GoogleMap-GoogleMakerAdd

Answer

Questions # 3:

The following image includes Android code for an app that contains a button with an id : "Downloadbutton". When the app user clicks this button, a progress bar with id: "progressBar" will show up. What will happen if you change *'rate+=10" illustrated with green underlined text to “rate+=50"?

Question # 3

Options:

No any change m progress bar work.

The progress bar will finish within two steps only.

You will get error and the app will not work.

The progress bar will workbefore slowly than before.

Answer

Questions # 4:

Which of the following choices is the main role of the Preview button which is illustrated in the red circle of the vertical Android Studio tool bar?

Question # 4

Options:

It shows the activity blue print preview mode.

It shows the Java or Kotlin code of an activity.

It shows the activity layout in print review.

It shows the activity layout in text (XML) and design mode at the same time.

Answer

Questions # 5:

Assume you were given the code of an Android app that include a Google Map. When you checked the apps code, you found the following: var locationMangaer: LocationManager?=null var locationUstener: LocationListener?=null Which of the following is true about this app?

Options:

This app is just lo show locations on Google map.

LocationListener is used to give the app user to change the Google map database.

This app captures a user s location (coordinates) and uses N in its work Row.

These classes are not related to Google map.

Answer

Questions # 6:

The following Android code locates Toronto CN tower on Google map using on the latitude and longitude coordinates. Which of the following choices is the correct choice to show your Google map in the zoom-in state?

Question # 6

Options:

Replace: GMap.moveCameralCameraaUpdateFactory.newLatLng(cnToiwf)) with: GMap.moveCameta{CameraUpdaieFaclory.newtalLnoZoom(cnTowerT16f)0

We can only show a position on Google map and we don't have permission to modify the zoom level

Change the coordinates value to get the zoom level what we need

Add the following code: GoogleMapZoom(60)%

Answer

Questions # 7:

Check the following image which is a part of AndroidManifest.xml file, then select which of the following choices is the correct description of the gray highlighted color of this code?

Question # 7