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Test your basic knowledge |
Android Programming
Start Test
Study First
Subject
:
it-skills
Instructions:
Answer 50 questions in 15 minutes.
If you are not ready to take this test, you can
study here
.
Match each statement with the correct term.
Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.
This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. Android provides this handy method to direct volume key presses to the audio stream the user specify.
When the activity resumes
NetworkInfo
setVolumeControlStream()
onCreate() - onDestroy()
2. Most network-connected Android apps use this to send and receive data.
ViewStub
HTTP
ACTION_BATTERY_LOW and ACTION_BATTERY_OKAY
ShareActionProvider
3. Amode where the action bar is set up with tabs for navigation.
dual-
Google Cloud Messaging for Android (GCM)
SearchView
ViewStub
4. When an activity is stopped because a new activity starts - it is notified of this change in state through the activity's _______ .
Dalvik Virtual Machine
<declare-styleable>
Intents
Lifecycle callback methods
5. It is a lightweight mechanism used to transmit data from a server to a particular app instance.
BackupHelper
XmlPullParser
Canvas
Google Cloud Messaging for Android (GCM)
6. It's generally a good idea for one of your APKs to support this texture format as it is supported by all Android-powered devices that support the OpenGL ES 2.0 spec.
ViewStub
Explicit intent
ETC1
AsyncTask
7. The entire lifetime of an activity happens between the call to _____ and the call to _____
ACTION_DOCK_EVENT
Service Content Provider
Entire
onCreate() - onDestroy()
8. It is a string that defines the specific type of access your app is asking for.
auth scope
BroadcastReceiver
getInputStream()
Wi-Fi radio
9. Are used in activities to create the user interface and to interact with the user.
Fragments
Dalvik Virtual Machine
Services
inflate()
10. For example - a ____ might be a button that initiates an action when the user touches it.
authenticator class
Linux based
Deserialize
View
11. This class computes scroll positions for you - but it does not automatically apply those positions to your view.
LocationManager
Scroller
Back stack
onCreate();
12. This class exposes a number of methods for applications to receive location updates.
onStop();
BatteryManager
LocationManager
SQLiteOpenHelper
13. Callback method: The activity is no longer visible.
Emulator
OAuth2
ETC1
onStop();
14. Theseclasses simplify the steps required to enhance your app with powerful platform features or effectively optimize your app performance.
Deserialize
Advanced Training
onDestroy();
BroadcastReceiver
15. Each time a new activity starts - the previous activity is stopped - but the system preserves the activity in a _____ (the ______).
setVolumeControlStream()
SQLiteOpenHelper
When the activity resumes
Stack - back stack
16. The ____ lifetime of an activity happens between the call to onStart() and the call to onStop().
onStop();
searchable configuration
visible
Wi-Fi radio
17. A service in which programmers can offer their Android application to Android users.
Scroller
Application footprint
Google Play
ACTION_BATTERY_LOW and ACTION_BATTERY_OKAY
18. The easiest way to create an authenticator class is to extend this and implement its abstract methods.
BackupHelper
visible
GestureDetector
AbstractAccountAuthenticator
19. This class defines abstract methods that you must override so that your database table can be created and upgraded when necessary.
SQLiteOpenHelper
SurfaceHolder.Callback
BroadcastReceiver
Intents
20. To respond to media button clicks - you need to register this in your manifest that listens for this action broadcast.
Android SDK
<declare-styleable>
BroadcastReceiver
SettingsActivity
21. It is a subclass of PreferenceActivity.
ACTION_DOCK_EVENT
SettingsActivity
auth scope
resolveSizeAndState()
22. Whenever the device is docked or undocked - this action is broadcast.
android.hardware.touchscreen
ACTION_DOCK_EVENT
BatteryManager
AsyncTask
23. This defines how the SearchView behaves and is defined in a res/xml/searchable.xml file.
AsyncTask
searchable configuration
ACTION_DOCK_EVENT
drawText()
24. This is used to fetch the account names that the user has stored on their device.
SurfaceHolder.Callback
Account Manager
onStop();
AsyncTask
25. This widget as an item in the action bar is the preferred way to provide search in your app.
Serialize
touch
XmlPullParser
SearchView
26. It typically consumes more energy than 3G - which is in turn more expensive than 2G.
ETC1
isConnected()
searchable configuration
LTE
27. To create an activity - you must create a subclass of
AccountAuthenticatorActivity
Google Cloud Messaging (GCM)
LTE
Activity
28. In order to get a list of accounts on the device - your app needs this permission.
Wi-Fi radio
onDraw()
GET_ACCOUNTS
Activity
29. For instance - when stopped - your activity should release any large ____ - such as network or database connections.
Service Content Provider
Objects Activity lifecycle
setContentView
ViewStub
30. Answers queries about the state of network connectivity. It also notifies applications when network connectivity changes.
Full power
ValueAnimator
LTE
ConnectivityManager
31. Represents the visual representation of an Android application
drawText()
Activity
AudioManager
SQLiteOpenHelper
32. It inform the system what intents an application component is willing to accept.
ShareActionProvider
Deserialize
Parser
Intent filters
33. It is used to load images in a background thread - then apply them to the UI once finished.
AsyncTask
touch
Google Cloud Messaging for Android (GCM)
onResume();
34. Callback method: The activity is about to be destroyed.
onDestroy();
OnCurrentItemChanged
Dalvik Debug Monitor Server
OAuth2
35. This is the simplest way to monitor device state changes.
Dots per inch
Stack - back stack
ViewStub
BroadcastReceiver
36. Perform background tasks without providing a user interface
Extensible Markup Language (XML)
AndroidManifest.xml
Services
Paint
37. When a new activity starts - it is pushed onto the ____ and takes user focus.
LocationManager
Back stack
Google
Paint
38. This can be used to draw previews of what the camera sensor is picking up.
Account Manager
SurfaceView
Low power
Application footprint
39. This class defines methods for drawing text - lines - bitmaps - and many other graphics primitives.
onResume();
Objects Activity lifecycle
Canvas
<declare-styleable>
40. A styleable entity that contains these two custom attributes: showText and labelPosition.
PieChart
SearchView
onMeasure()
Explicit intent
41. If you want your APK to be visible on TVs which are non-touchscreen devices you should add this to your manifest.
Advanced Training
android.hardware.touchscreen
Account
searchable configuration
42. Where Android is currently primarily developed
Google
View
onStop();
ETC1
43. The ____ lifetime of an activity happens between the call to onCreate() and the call to onDestroy().
AttributeSet
Paint
SecurityException
Entire
44. An intermediate state that uses around 50% of the battery power at the full state.
drawBitmap()
ViewStub
Low power
Fragments
45. An Activity is an application ______ that provides a _______ with which users can interact in order to do something - such as dial the phone - take a photo - send an email - or view a map
Android SDK
Component - screen
HttpURLConnection
Advanced Training
46. Your activity should perform setup of "global" state (such as defining layout) in ____ and release all remaining resources in _____
onCreate() - onDestroy()
Dalvik Virtual Machine
Objects Activity lifecycle
adb
47. Conversion of an object to XML
Serialize
ConnectivityManager
ACTION_DOCK_EVENT
Destroyed - previous
48. Once a connection has been established - the app uses this method to retrieve the data as an InputStream.
AbstractAccountAuthenticator
Parser
SurfaceHolder.Callback
getInputStream()
49. An open source group led by Google
Destroyed - previous
Open Handset Alliance
ACTION_BATTERY_LOW and ACTION_BATTERY_OKAY
Google Cloud Messaging for Android (GCM)
50. This behaves similarly to a SQLite table - but reads and writes to an object in memory via callbacks - instead of to a database file.
touch
Intents
virtual table
onPause();
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