Mobile Application Design and Development

What is the default layout manager for Android user interface?

• AbsoluteLayout
• FrameLayout
• LinearLayout
• RelativeLayout

The Spinner.OnItemSelectedListener interface contains the ____ method specification.

• actionEvent(ActionEvent e)
• onClick(View v)
• onListItemClick(ListView parent, View v, int position, long id)
• onNothingSelected(AdapterView<?> parent)

Which of the following is the advantage of using Android as an application development platform?

• All of the above
• No licensing, distribution, or development fees
• A simple and powerful SDK
• Excellent documentation

<Table Row />

• Table Layout

The Android documentation warns that one should never house a ListView within a ScrollView, because that defeats the performance optimizations of a ListView.

• True
• False

A toolbox control which is described as an editable text entry box. It accepts multiline entry and word wrapping.

• Button
• TextView
• Spinner
• EditText

Tweened animations (which is used to display a sequence of drawable images).

• True
• False

SQLite has a reputation of being extremely reliable and is the database system of choice for many consumer electronic devices.

• True
• False

_____ shows a dialog with an input box and returns a String.

• EditTextPreference

Application resources are stored under the res/ folder of your project hierarchy.

• True
• False

Which of the following standard-defining organization does Android belong?

• All of the choices
• Open Handset Alliance
• Open Mobile Alliance
• Linux Phone Standards Forums

Alpha animation lets you spin the selected View canvas in the XY plane.

• True
• False

______ works the same way as the regular button, with which we can use an onClick attribute to attach a handler method to a click event.

• ImageButton
• ImageView
• Button

A preference that shows a group where only 1 item can be selected a time.

• ListPreference
• CheckboxPreference
• PreferenceCategory
• RingtonePreference

Which of the following attribute sets the text to be bold, italicized or underlined?

• android:typeface
• android:textStyle
• android:textColor
• android:gravity

The Gallery and GridView ViewGroups are similar since the two both utilizes and manipulates drawables only.

• True
• False

Which of the following is not a View?

• Spinner
• GridView
• EditText
• ImageButton

_____ resource lets you decouple your presentation layer by designing user-interface layouts in XML rather than constructing them in code.

• None of the above
• Animation
• Styles
• Drawables

Which of the following is not a native Android application?

• A full Personal Information Management (PIM) suite
• A fully functional Scientific Calculator
• An Instant Messaging Client
• An SMS management application

It is advisable to use a convenient location from which to publish static database constants, including table names, column names, and column indexes.

• True
• False

An _____ files is a specification of the widgets’ relationships to each other.

• HTML Layout
• XML Layout
• Java OOP

For a more robust persistence layer, Android provides the:

• Local files
• SQLite database
• All of the choices
• Preference

A layout manager where one can span multiple rows and columns, and columns can be set to shrink or grow.

• FrameLayout
• TableLayout
• RelativeLayout
• None of the choices

It automatically start your application to respond to an incoming intent, making them ideal for event-driven applications.

• Activities
• Content Providers
• Services
• Broadcast Receivers

SQLite has been implemented as a compact C library that’s included as part of the Android software stack.

• True
• False

It is considered an application’s presentation layer.

• Activity
• Intent
• Content Provider
• View

A database adapter adds an abstraction layer that encapsulates database interactions which include:

• handle queries
• all of the choices
• separate creating, opening, and closing the database
• provide a basis for typed methods

Android has no mechanism to manage Cursor resources within activities.

• True
• False

Use _____ to attach a callback function to handle the check/uncheck events.

• SetLayoutChange
• SetOnclickListener
• setOnCheckedChangeListener()

_____ are a simple, lightweight key/value pair mechanism for saving primitive application data, most commonly a user’s application predilection.

• Content Provider
• Application Data
• Preferences

Third-party and native Android applications are written using the same APIs and are executed on the same run time

• True
• False

To create user interfaces, Android has _____.

• View
• Control
• Widget
• All of the above

Each Content Values object represents a single row, as a map of column names to values.

• True
• False

On what line number in the snippet above contains the attribute which will contain the value that we can call to get the preference's value?

• Line 2
• Line 4
• Line 6
• None of the above

The Cursor function which returns the number of rows in the result set.

• getPosition
• none of the choices
• getCount
• getColumnNames

Android supplies a toolbox of standard Views to help you create simple interfaces.

• True
• False

Which of the following is a primary resource type in Android?

• animations
• layout
• XML
• styles

The founders of Android, Inc. include:

• Andy Stroustrup
• James Gosling
• Rich Miner
• None of the choices

By default, all databases are private, accessible only by the application that created them.

• True
• False

Through this, one can create compound controls that are made up of interconnected child view.

• ViewGroups
• Intents
• Views
• Activities

Android provides several common UI controls, widgets, and layout managers

• True
• False

The output of the code above contains:

• All of the above
• Label
• Button
• Text field

android:layout_x = “240sp”

• Absolute Layout

It is good practice to create a helper class to complicate your database interactions.

• True
• False

Which of the following describes good reasons why SQLite is a great fit for Android app development?

• All of the choices
• Lightweight
• Single-tier
• Open source

It lets you move the selected View around the screen (although it will only be drawn within its original bounds).

• Stop Motion Animation
• Translate Animation
• Tweened Animation

A database in a mobile device is very useful as a supplement to the online world.

• True
• False

A method that executes because it is called automatically when an appropriate event occurs is an event ____.

• responder
• listener
• handler
• source

The _____ attribute contains a summary about the preference.

• android:summary
• SQLite Database
• Application

A cursor handles queries and wrap creating, opening, and closing the database.

• True
• False

This is used to make unicast, multicast and broadcast messages throughout the application

• Services
• Notification
• Intent

___________ 1. Frame-by-frame animations are akin to traditional cell-based cartoons where an image is chosen for each frame.

• True
• False

The layout value “fill parent” on Line 3, 8, and 13:

• Sets the size of the widget as equal to the size of the UI
• Sets the size of the widget as equal to the size of its value
• Sets the size of the widget as equal to the size of the UI and its value
• None of the above

When a ScrollView has no scrollbars, it is a major problem since scrollbars act as visual cues in Android.

• True
• False

Since SQLite support is built into Android, it just means that it is your only option when it comes to data persistence for your app.

• True
• False

The _____ attribute which will contain the value that we can call to get the preference's value.

• Toast
• android:key
• preference

Through it, one can broadcast messages system-wide or to a target activity or service, stating his intention to have an action performed.

• ActionListener
• None of the above
• ButtonListener
• OnClickListener

_____ lets you define a series of changes in position, size, rotation, and opacity that animate the View contents.

• Stop Motion
• Tweened Animation
• Translate Animation

Describing a layout using _____ may mean that the layout can not dynamically adjust for different screen resolutions and orientations.

• FrameLayout
• TableBagLayout
• RelativeLayout
• AbsoluteLayout

The following are the notations being used to specify color values EXCEPT:

• #ARRGGBB
• #ARGB
• #RRGB
• #RGB

Android employ several open source software which include:

• OpenGL
• All of the choices
• SQLite
• Java PL

A helper is not existing in Android which means one need to code the interface for your app to interact with an SQLite database.

• True
• False

The statement in Line 17 on the above code:

• Both are invalid
• Both are valid
• Sets an identifier for the widget
• Accesses the widget with the specified identifier name

Which of the following is not an example of mobile operating system?

• Palm
• Blackberry
• Symbian
• None of the choices

The Android framework does not offer a way to use SQLite easily and effectively.

• True
• False

Filling the ListView in the ListActivity is a simple matter of calling setListAdapter and passing it an ArrayAdapter that contains a reference to the list of strings.

• True
• False

_____ resources let you decouple your presentation layer by designing user-interface layouts in XML rather than constructing them in code.

• Dimension
• String
• Layout
• Animation

Each _____ class embodies a different set of assumptions about how to display its children.

• ListView
• ViewGroup
• Layout

The simplest of the layout managers, which simply pins each child view to the top left corner.

• AbsoluteLayout
• FrameLayout
• None of the choices
• LinearLayout

android:MeasureAllChildren

• Frame Layout

_____ is used to handle the check or uncheck events.

• CoumpoundButtons.OnCheckChangedListener
• CoumpoundButton.OnChickChangedListener
• CoumpoundButton.OnCheckedChangedListener

Multiple RadioButtons can be put inside a _____, which means that only one button of the group can be selected at a time.

• Widget Group
• View Group
• Radio Group

The Button.OnClickListener interface contains the ____ method specification.

• actionPerformed(ActionEvent e)
• onClick(View v)
• onEvent(Event e)
• actionEvent(ActionEvent e)

Android provides _____ for a more robust persistence layer which offers a capability to store data in which you have total control.

• SQLite database
• Preference
• Content Providers
• Local files

_____ is made from a Text View displaying the current selection, combined with a button that displays a selection dialog when pressed.

• EditView
• ImageView
• Spinner

The code above contains:

• Label

_____ offer a simple way to provide depth, movement, or feedback to your users at a minimal resource cost.

• Tweened Animatio
• Stop Motion Animation
• Basic Animation

What type of preference is used in the snippet above?

• Checkbox
• None of the above
• Ringtone
• Custom

The Android OS utilizes what Kernel ?

• All of the Above
• None of the Above
• Windows
• Linux
• Ubuntu

_____ refers to an image that uses a 1-pixel border to define the area of the image that can be stretched if the image is enlarged.

• nine patch
• jpg
• gif
• png

The _____ class is used to create a new frame-by-frame animation presented as a Drawable resource.

• Tweened animation
• Text Drawable
• Animation Drawable

Line 3 in the code above:

• Pre-defined method
• User-defined method
• None of the above
• Required Class

The layout value “fill parent” on Line 8, 11, and 15:

• Sets the size of the widget as equal to the size of the UI

Based on the code above, the attribute on Line 7 will:

• Assigns the default array value of the preference
• Link an array in the res/values/array
• All of the choices
• Set an array with the items to be returned

Aside from SQLite database, one can use local file storage to store and manage complex, structured application data.

• True
• False

_____ shows a RadioGroup where only 1 item can be selected a time

• Applications
• ListPreference
• SQLiteDatabase

android:layout_alignParentRight = “true”

• Relative Layout

A ScrollView is a _____, which means that it can have only one child View.

• Linear Layout
• Table Layout
• Frame Layout

This is a software that allows smartphones, tablet PCs and other devices to run applications and programs.

• Android OS
• Symbian OS
• None of the above
• Linux OS
• Windows OS

Line 5 in the code above:

• None of the above
• Finds the views from the XML layout file for the application
• Sets the XML layout file for the application
• Loads the XML layout file for the application

Android applications are written using the Java language, which means that they are the same with J2ME implementation.

• True
• False

Known as the custom preference.

• preference
• android:key
• toast

Which of the following is not an example of ViewGroup?

• Spinner
• Gallery
• TabHost
• None of the choices

The Android open-source software stack consists of Java applications running on a Java-based, object-oriented application framework

• True
• False

On the above code, a scroll bar will:

• Be shown

ScrollView is the same as the ListView.

• True
• False

_____ are much more useful than dialog boxes in mobile apps, as they do not distract the user as much or

• toast
• preference
• android:key

To reference one resource from another, a programmer should use which of the following notation?

• attribute=”@[applicationname:]resourceidentifier/resourcetype”
• attribute=”@[applicationname:]resourcetype/resourceidentifier”
• attribute=”@[packagename:]resourcetype/resourceidentifier”
• attribute=”@[packagename:]resourceidentifier/resourcetype”

The SQLite database offers a powerful native SQL database over which you have total control.

• True
• False

Saving and loading data is an essential requirement for most _____.

• ListPreference
• Applciation
• Sqlite database

Android offers several alternatives for saving _____, each optimized to fulfil a particular need.

• Application Data
• Preferences
• Content Provider

_____ allows you to zoom in to or out from the selected View.

• Translate Animation
• Rotate Animation
• Scale Animation

_____ resources include bitmaps and NinePatch images.

• Animation
• Dimension
• Drawable
• Color

While these widgets can be created and attached to our activities using Java code, in Android development it is more common to do it using XML-based layout files.

• True
• False

It lets you signal users without stealing focus or interrupting their current activities.

• Notifications
• Content Providers
• Intents

A _____ often contains a LinearLayout which in turn contains the views that make up the form.

• RadioGroup
• ScrollView
• ListView

For a more robust persistence layer, Android provides the _____ library.

• SQLite database
• Application
• Preferences

Android supports simple text styling.

• True
• False

On what programming application framework does Android runs on?

• None of the Above
• C++
• All of the Above
• JAVA
• XML

Use the animation-list tag to group a collection of item tags.

• True
• False

Based on the code above, the output of Line 7-13 will be displayed at _____.

• Lower Right corner
• Middle
• None of the above
• Upper Right corner

_____ displays multiple items in a vertically scrolling list.

• ListView
• Absolute Layout
• Table Layout

Android only supplies several resources that you created which you can use in your applications.

• True
• False

When creating the output file, in order to make them available in other applications, one must specify the _____.

• Context.MODE_PRIVATE
• None of the choices
• Context.MODE_APPEND
• Context.MODE_WORLD_WRITEABLE

_____ are designed to control the position of child controls on a screen.

• Controls
• Widgets
• Layouts
• Views

TextView’s one unique attribute, wherein if set true, it indicates that the program has defined an input method to receive input text.

• inputMethod
• None of the above
• autoLink
• editable

What is the debug service used by the android platform?

• None of the Above
• Mobile Browsers
• All of the Above
• JAVA Runtime
• Dalvic Debug Program

Layouts can not be nested, meaning, the ability to create arbitrarily complex interfaces using a combination of layout managers cannot be done.

• True
• False

Based on the code above, the widget output on Line 21-27 will be displayed (using a standard Android UI) at:

• Lower Right corner
• Upper Left corner
• Upper Right corner
• Lower Left corner

A toolbox, composite control that displays a TextView and an associated ListView which lets the user select an item from a list to display in the textbox.

• CheckBox
• Spinner
• ListView
• EditText

It is used for structured data storage

• DDMS
• SQLite
• GSM Telephony
• Application Framework

Content Providers objects are used to insert new rows into database tables.

• True
• False

_____ offer a generic interface to any data source by effectively decoupling the underlying data storage technique from the application layer.

• Preferences
• Application Data
• Content Provider

It used to insert new rows into database tables.

• ContentValues
• ContentProviders
• None of the choices
• Cursor

android:orientation = “horizontal”

• Linear Layout

Android utilizes the Symbian kernel

• True
• False

To check or modify the state of our checkbox, one can use the method:

• wasChecked()