Lesson Plan: Unit - 02
Subject: P15A2AAD - Android Application Development
Topic of Study: Working with others types of Resources
Grade/Level: Master of Computer Applications
Objective: To understand the mechanism of other resources for Android OS.
Time Allotment: 55 Minutes
- Working with Boolean resources
- Boolean resources can be used to store information about application game preferences and default values.
- Boolean resources are defined in XML under the /res/values project directory.
- Boolean values are appropriately tagged with the bool tag and represent a name-value pair.
- Boolean resource file /res/values/bools.xml.
- Exa. How to write a boolean resources in .xml
- Exa. How to access in .java file
- Working with Integer resources
- You can also store integers as resources.
- Integer resources are defined in XML under the /res/values project directory.
- Integer values are appropriately tagged with the integer tag and represent a name value pair.
- Exa. How to write a integer resources in .xml
- Exa. How to access in .java file
- Working with color resources
- Android applications can store RGB color values, which can then be applied to other screen elements.
- Color resources are defined in XML under the /res/values project directory.
- RGB color values always start with hash symbol (#).
- Exa.
- #RGB (#F00 is 12-bit color, red)
- #ARGB (#8F00 is 12-bit color, red with alpha 50%)
- #RRGGBB (#FF00FF is 24-bit color, magenta)
- #AARRGGBB (#80FF00FF is 24-bit color, magenta with alpha 50%)
- Exa. How to write a color resources in .xml
- Exa. How to access in .java file
- Working with Dimension resources
- Many user interface layout controls such as text controls and buttons are drawn to specific dimensions.
- These dimensions can be stored as resources.
- Dimension values always end with a unit of measurement tag.
- Dimension values are appropriately tagged with the dimen tag and represent a name value pair.
- Dimension resources are defined in XML under the /res/values project directory.
- Exa. Types of measurement…
- Exa. How to write a dimension resources in .xml
- Exa. How to access in .java file
- Working with Simple drawable resources
- You can specify simple colored rectangles by using the drawable resource type, which can then be applied to other screen elements
- Drawable resources are defined in XML under the /res/values project directory.
- Paintable drawable resources use the drawable tag and represent a name-value pair.
- Exa. How to write a simple drawable resources in .xml
- Exa. How to access in .java file
- Working with image resources
- Applications often include visual elements such as icons and graphics.
- Android supports several image formats such as..
- Simply drag the image asset into /res/drawable directory.
- These image formats are all well supported by popular graphics editors such as Adobe Photoshop, GIMP, and Microsoft Paint.
- The Nine-Patch Stretchable Graphics can be created from PNG files using the draw9patch tool included with the Android SDK under the /tools directory.
- Working with Animation resources
- Android supports frame-by-frame animation and tween animation.
- Frame-by-frame animation involves the display of a sequence of images in rapid succession.
- Tweened animation involves applying standard graphical transformations such as rotations and fades upon a single image.
- How to define frame-by-frame resources?
- Exa.
- Save each frame graphic as an individual drawable resource. Exa. step01.jpg,step02.jpg…
- Define the animation set resource in an XML file within /res/drawable/ resource directory.
- Load, start, and stop the animation programs.
