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Basic Android Animation
This document discusses different types of animation in Android, including property animation, view animation, tween animation, and frame animation. It explains that property animation changes a property value over time, tween animation performs simple transformations on a view, and frame animation shows a sequence of images. It provides details on using XML and code to create animations with elements like alpha, scale, rotate, and translate. The document includes examples of how to specify animation properties in XML and notes that listeners can be used to detect animation start, repeat, and end.
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Basic Android Animation
- 1. Basic View Animation inAndroid By Shilu Shrestha
- 2. Pre-requisites • Installed wellfunctioning Android Studio • Basic knowledge of programming in Android is a plus
- 3. animation anɪˈmeɪʃ(ə)n/ noun the state ofbeing full of life or vigour; liveliness.
- 4. Why do weneed Animation in Android?
- 5. • Notify whenscreen changes its state; Such as when content load is complete. • Communicate quickly and concisely with your user. • Adds a polished finished look to your app.
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- 8. • A propertyanimation changes a property's (a field in an object) value over a specified length of time. • Property animation allows you to animate almost anything.
- 9. View Animation • TweenAnimation • Frame Animation
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- 11. • Perform aseries of simple transformations (position, size, rotation, and transparency) on the contents of a View object. • Calculates the animation with information such as the start point, end point, size, rotation, and other common aspects of an animation. • Can be done using XML or Programmatically
- 12. Animation using XMLFile • Like all xml there should be one root file • File location: • res/anim • The elements performing xml animations are • <alpha> • <scale> • <rotate> • <translate> • Animation elements maybe grouped using <set> element.
- 13. • <alpha> :fade in / fade out • <android:fromAlpha> • <android:toAlpha> • “1.0" : opaque • “0.0” : transparent
- 14. • <scale> :resize image • <android:fromXScale> • <android:toXScale> • <android:fromYScale> • <android:toYScale> • <android:pivotX> • <android:pivotY>
- 15. • <rotate> :rotation animation • <android:fromDegrees> • <android:toDegrees> • <android:pivotX> • <android:pivotY>
- 16. • <translate> :a vertical or horizontal translation • <android:fromXDelta> • <android:toXDelta> • <android:fromYDelta> • <android:toYDelta>
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- 18. Animation Listener • Animationlistener receives notifications from animation. • onAnimationStart (Animation animation) • onAnimationRepeat (Animation animation) • onAnimationEnd (Animation animation)
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- 26. • An animationdefined in XML which shows the sequence of images in order. • File location: • res/drawable/<filename>.xml • Elements • <animation-list> : root element contains list of <item> • <android:oneshot> : attribute to loop animation
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- 31. • Final Repo:https://github.com/shilu-stha/Basic- Animations
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