Android RotateAnimation
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This document discusses the RotateAnimation class in Android which allows you to create animations that rotate views or layers. It provides examples of how to initialize a RotateAnimation programmatically by specifying start and end degrees, and how to define a RotateAnimation using XML with attributes like fromDegrees, toDegrees, and pivot points. It also lists XML attributes that can be set on animations and provides a link to sample code demonstrating RotateAnimation.
Android RotateAnimation
- 5. new RotateAnimation Animation animation = new RotateAnimation( 0.0f, 270.0f, Animation.RELATIVE_TO_SELF, 1.0f, Animation.RELATIVE_TO_SELF, 1.0f ); ? animation.setDuration(2000);? animation.setFillAfter(true); 5
- 6. res/anim/ XML Animation animation = AnimationUtils.loadAnimation( this, R.anim.my_animation ); <?xml version="1.0" encoding="utf-8"?>? <set xmlns:android="http://schemas.android.com/apk/res/android"? android:interpolator="@android:anim/linear_interpolator">? <rotate? android:fromDegrees="0"? android:toDegrees="360"? android:pivotX="50%"? android:pivotY="50%"? android:duration="2000"? android:repeatCount="-1"? android:startOffset="0"/>? </set> my_animation.xml 6
- 7. XML Attributes Attribute Name Related Method Description android:detachWallpaper setDetachWallpaper(boolean) Window wallpaper android:duration setDuration(long) ( ) android:fillAfter setFillAfter(boolean) android:fillBefore setFillBefore(boolean) ( AnimationSet) android:fillEnabled setFillEnabled(boolean) true: ?llBefore , false: ?llBefore android:interpolator setInterpolator(Interpolator) android:repeatCount setRepeatCount(int) (0~N, -1: ) android:repeatMode setRepeatMode(int) (RESTART, REVERSE) android:startOffset setStartOffset(long) ( ) android:zAdjustment setZAdjustment(int) Z http://developer.android.com/intl/zh-tw/reference/android/view/animation/RotateAnimation.html#inhattrs 7