Question 1

We want to retrieve the private key of a KeyPair named kp. Write the code for it.

Accepted Answer

The answer of We want to retrieve the private key...

Question 2

Assuming that we have correctly coded the AndroidManifest.xml file (that is, we have added android:configChanges="orientation|screenSize"), the ____________ method is automatically called when the user rotates the device.

Accepted Answer

The answer of Assuming that we have correctly coded the...

Question 3

The ____________ method of the GestureDetector.OnDoubleTapListener is called when the user double taps the screen.

Accepted Answer

The answer of The ____________ method of the GestureDetector.OnDoubleTapListener is...

Question 4

When we want to extend the View class and draw in that custom View, we place our code in the ____________ method.

Accepted Answer

The answer of When we want to extend the View...

Question 5

The ____________ method of the View class triggers a call to onDraw and can be called from outside the main user interface thread.

Accepted Answer

The answer of The ____________ method of the View class...

Question 6

The ____________ method of the fragment class is called when the fragment is attached to its context.

Accepted Answer

The answer of The ____________ method of the fragment class...

Question 7

We use the ____________ method of the FragmentManager class to retrieve a fragment based on its id.

Accepted Answer

The answer of We use the ____________ method of the...

Question 8

We use the ____________ method of the FragmentTransaction class to add a fragment to an activity.

Accepted Answer

The answer of We use the ____________ method of the...

Question 9

We use the ____________ method of the Fragment class to retrieve its View.

Accepted Answer

The answer of We use the ____________ method of the...

Question 10

When using Google maps in an app, we need to include a uses-permission element in the ____________ file to specify that the app can access the current device location and a meta-data element that specifies key information.

Accepted Answer

The answer of When using Google maps in an app,...

Question 11

We edit the ____________ in order to include Google Play services in the compilation process.

Accepted Answer

The answer of We edit the ____________ in order to...

Question 12

If we want to receive location updates at regular intervals, we need to implement the ____________ interface.

Accepted Answer

The answer of If we want to receive location updates...

Question 13

The ____________ class encapsulates a seek bar or a slider.

Accepted Answer

The answer of The ____________ class encapsulates a seek bar...

Question 14

We can use the ____________ method of the Context class to obtain an external storage directory.

Accepted Answer

The answer of We can use the ____________ method of...

Question 15

If the app writes to external storage, we need to add the ____________ permission (that is, the value of the uses-permission attribute) to the AndroidManifest.xml file.

Accepted Answer

The answer of If the app writes to external storage,...

Question 16

When parsing an XML document using the DefaultHandler class, the ____________ method is called when a start tag is encountered by the parser.

Accepted Answer

The answer of When parsing an XML document using the...

Question 17

When parsing an XML document using the DefaultHandler class, the ____________ method is called when character data is encountered by the parser.

Accepted Answer

The answer of When parsing an XML document using the...

Question 18

The ____________ class from the android.os package allows us to perform an operation in the background.

Accepted Answer

The answer of The ____________ class from the android.os package...

Question 19

The ____________ class from the android.appwidget package contains life cycle methods for a widget (that we can override).

Accepted Answer

The answer of The ____________ class from the android.appwidget package...

Question 20

The ____________ class from the android.appwidget package describes the meta data in a widget provider, such as icon, minimum width and height, and update frequency.

Accepted Answer

The answer of The ____________ class from the android.appwidget package...

Quiz 17: Android Development: Extending Views, Fragments, and Google Maps Permissions

We want to retrieve the private key of a KeyPair named kp. Write the code for it.

Assuming that we have correctly coded the AndroidManifest.xml file (that is, we have added android:configChanges="orientation|screenSize"), the ____________ method is automatically called when the user rotates the device.

The ____________ method of the GestureDetector.OnDoubleTapListener is called when the user double taps the screen.

When we want to extend the View class and draw in that custom View, we place our code in the ____________ method.

The ____________ method of the View class triggers a call to onDraw and can be called from outside the main user interface thread.

The ____________ method of the fragment class is called when the fragment is attached to its context.

We use the ____________ method of the FragmentManager class to retrieve a fragment based on its id.

We use the ____________ method of the FragmentTransaction class to add a fragment to an activity.

We use the ____________ method of the Fragment class to retrieve its View.

When using Google maps in an app, we need to include a uses-permission element in the ____________ file to specify that the app can access the current device location and a meta-data element that specifies key information.

We edit the ____________ in order to include Google Play services in the compilation process.

If we want to receive location updates at regular intervals, we need to implement the ____________ interface.

The ____________ class encapsulates a seek bar or a slider.

We can use the ____________ method of the Context class to obtain an external storage directory.

If the app writes to external storage, we need to add the ____________ permission (that is, the value of the uses-permission attribute) to the AndroidManifest.xml file.

When parsing an XML document using the DefaultHandler class, the ____________ method is called when a start tag is encountered by the parser.

When parsing an XML document using the DefaultHandler class, the ____________ method is called when character data is encountered by the parser.

The ____________ class from the android.os package allows us to perform an operation in the background.

The ____________ class from the android.appwidget package contains life cycle methods for a widget (that we can override).

The ____________ class from the android.appwidget package describes the meta data in a widget provider, such as icon, minimum width and height, and update frequency.