18 Questions
What is the primary aim of the Android version 4.1 Jelly Bean update?
Improving user interface functionality and performance
Which organization led the Open Handset Alliance in developing Android?
Which directory in the anatomy of an Android application contains XML files with resources like strings and color definitions?
res/values
When was the commercial version of Android first released?
2008
What type of screens are the drawable objects in the 'res/drawable-hdpi' directory designed for?
High-density screens
Which company announced the Android version 4.1 Jelly Bean in 2012?
What is the purpose of the manifest.xml file in an Android application project?
To specify the application's components to the Android OS
What does the 'onCreate()' method in Android development signify?
It is triggered when an activity is loaded
Where should the application icon be stored in an Android project?
res/drawable-hdpi folder
What role does R.layout.activity_main play in Android development?
It refers to the activity_main.xml layout file
What attribute determines the class name of an Activity subclass in Android's tag?
android:name
Why is it important to declare all components of an Android app in the manifest.xml file?
To ensure that all components are recognized by the Android OS
What is the purpose of using android.intent.action.MAIN in the manifest file?
To define the activity as the entry point for the application
Why is android.intent.category.LAUNCHER used in the intent-filter?
To indicate that the application can be launched from the device's launcher icon
What does @string/app_name refer to in the text?
A string defined in the strings.xml file named app_name
In which directory is the strings.xml file typically located?
res/values
What is the purpose of activity_main.xml in Android development?
To define layouts for application components
Which Android control mentioned in the text is used to build the GUI?
TextView
Test your knowledge about the history of the Android operating system, including its development, versions, and key features. Learn about the evolution of Android from its beta release in 2007 to the introduction of Jelly Bean in 2012.
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