Android Animation之ViewAnimator\ViewFlipper
选自Android 3.0 Animations Beginners Guide Bring Your Android Applications To Lefe With Stunning Animations
动画http://stackoverflow.com/questions/5151591/android-left-to-right-slide-animation
Viewpper是一个为了翻页动画而封装的小类。它使用tween动画类，并将它们扩展到xml文件。
main.xml
ViewFlipper有两个属性，android:inAnimation和android.outAnimation，可以设置进出动画
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical" >
<ViewFlipper
android:id="@+id/pages"
android:layout_width="match_parent"
android:layout_height="0dip"
android:layout_weight="1" >
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical" >
<TextView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="@string/text_1_1" />
<ImageView
android:id="@+id/rollingball"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:paddingLeft="60dp"
android:src="@drawable/ball"
android:contentDescription="@string/app_name" />
<TextView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="@string/text_1_2" />
</LinearLayout>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical" >
<TextView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="@string/text_2_1" />
<ImageView
android:id="@+id/bouncingball"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:paddingLeft="60dp"
android:src="@drawable/ball"
android:contentDescription="@string/app_name" />
<TextView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="@string/text_2_2" />
</LinearLayout>
<TextView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="@string/text_3_1" />
</ViewFlipper>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:gravity="center" >
<Button
android:id="@+id/prev"
style="?android:attr/buttonBarButtonStyle"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_weight="1"
android:drawableLeft="@android:drawable/ic_media_previous"
android:text="@string/button_prev" />
<Button
android:id="@+id/next"
style="?android:attr/buttonBarButtonStyle"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_weight="1"
android:drawableRight="@android:drawable/ic_media_next"
android:text="@string/button_next" />
</LinearLayout>
</LinearLayout>
slidein_to_left.xml //in from right to left used by next button
<?xml version="1.0" encoding="utf-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android"
android:interpolator="@android:anim/decelerate_interpolator" >
<translate
android:duration="500"
android:fromXDelta="100%p"
android:toXDelta="0" />
</set>
slideout_to_left.xml //out from right to left used by next button
<?xml version="1.0" encoding="utf-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android"
android:interpolator="@android:anim/accelerate_interpolator" >
<translate
android:duration="500"
android:fromXDelta="0"
android:toXDelta="-100%p" />
</set>
slidein_to_right.xml //in from left to right used by previous button
<?xml version="1.0" encoding="utf-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android"
android:interpolator="@android:anim/decelerate_interpolator" >
<translate
android:duration="500"
android:fromXDelta="-100%p"
android:toXDelta="0" />
</set>
slideout_to_right.xml //out from left to right used by previous button
<?xml version="1.0" encoding="utf-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android"
android:interpolator="@android:anim/accelerate_interpolator" >
<translate
android:duration="500"
android:fromXDelta="0"
android:toXDelta="100%p" />
</set>
MainActivity.java
package com.animation.interactivebook;
import android.os.Bundle;
import android.animation.ObjectAnimator;
import android.animation.ValueAnimator;
import android.app.Activity;
import android.view.Menu;
import android.view.View;
import android.view.animation.Animation;
import android.view.animation.AnimationSet;
//import android.view.animation.AnimationUtils;
import android.view.animation.ScaleAnimation;
import android.view.animation.TranslateAnimation;
import android.widget.Button;
import android.widget.ViewAnimator;
public class InteractiveBook extends Activity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
final View rollingBall = findViewById(R.id.rollingball);
ObjectAnimator ballRoller = ObjectAnimator.ofFloat(rollingBall,
"TranslationX", 0, 400);
ballRoller.setDuration(2000);
ballRoller.setRepeatMode(ObjectAnimator.REVERSE);
ballRoller.setRepeatCount(ObjectAnimator.INFINITE);
ballRoller.start();
final View bouncingBall = findViewById(R.id.bouncingball);
ValueAnimator ballBouncer = ValueAnimator.ofInt(0, 40);
ValueAnimator.setFrameDelay(50);
ballBouncer
.addUpdateListener(new ValueAnimator.AnimatorUpdateListener() {
public void onAnimationUpdate(ValueAnimator ballBouncer) {
// We'll fill this out in a minute
final int animatedValue = (Integer) ballBouncer
.getAnimatedValue();
bouncingBall.post(new Runnable() {
public void run() {
bouncingBall.setPadding(
bouncingBall.getPaddingLeft(),
40 - animatedValue,
bouncingBall.getPaddingRight(),
animatedValue);
bouncingBall.invalidate();
}
});
}
});
ballBouncer.setDuration(2000);
ballBouncer.setRepeatMode(ValueAnimator.REVERSE);
ballBouncer.setRepeatCount(ValueAnimator.INFINITE);
ballBouncer.start();
final AnimationSet slideinToLeft = new AnimationSet(true);
TranslateAnimation slide1 = new TranslateAnimation(
Animation.RELATIVE_TO_PARENT, 1f, Animation.RELATIVE_TO_PARENT,
0, Animation.RELATIVE_TO_SELF, 0, Animation.RELATIVE_TO_SELF, 0);
ScaleAnimation scale1 = new ScaleAnimation(10, 1, 10, 1);
slideinToLeft.addAnimation(slide1);
slideinToLeft.addAnimation(scale1);
slideinToLeft.setDuration(1000);
final AnimationSet slideoutToLeft = new AnimationSet(true);
TranslateAnimation slide2 = new TranslateAnimation(
Animation.RELATIVE_TO_PARENT, 0, Animation.RELATIVE_TO_PARENT,
-1f, Animation.RELATIVE_TO_SELF, 0, Animation.RELATIVE_TO_SELF,
0);
ScaleAnimation scale2 = new ScaleAnimation(1, 10, 1, 10);
slideoutToLeft.addAnimation(slide2);
slideoutToLeft.addAnimation(scale2);
slideoutToLeft.setDuration(1000);
final AnimationSet slideinToRight = new AnimationSet(true);
TranslateAnimation slide3 = new TranslateAnimation(
Animation.RELATIVE_TO_PARENT, -1f,
Animation.RELATIVE_TO_PARENT, 0, Animation.RELATIVE_TO_SELF, 0,
Animation.RELATIVE_TO_SELF, 0);
ScaleAnimation scale3 = new ScaleAnimation(10, 1, 10, 1);
slideinToRight.addAnimation(slide3);
slideinToRight.addAnimation(scale3);
slideinToRight.setDuration(1000);
final AnimationSet slideoutToRight = new AnimationSet(true);
TranslateAnimation slide4 = new TranslateAnimation(
Animation.RELATIVE_TO_PARENT, 0, Animation.RELATIVE_TO_PARENT,
1f, Animation.RELATIVE_TO_SELF, 0, Animation.RELATIVE_TO_SELF,
0);
ScaleAnimation scale4 = new ScaleAnimation(1, 10, 1, 10);
slideoutToRight.addAnimation(slide4);
slideoutToRight.addAnimation(scale4);
slideoutToRight.setDuration(1000);
final ViewAnimator pages = (ViewAnimator) findViewById(R.id.pages);
Button prev = (Button) findViewById(R.id.prev);
Button next = (Button) findViewById(R.id.next);
prev.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
// pages.clearAnimation();
// Animation inAnimation =
// AnimationUtils.loadAnimation(InteractiveBook.this,
// R.anim.slidein_to_right);
// Animation outAnimation =
// AnimationUtils.loadAnimation(InteractiveBook.this,
// R.anim.slideout_to_right);
// pages.setInAnimation(inAnimation);
// pages.setOutAnimation(outAnimation);
pages.clearAnimation();
pages.setInAnimation(slideinToRight);
pages.setOutAnimation(slideoutToRight);
pages.showPrevious();
}
});
next.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
// pages.clearAnimation();
// Animation inAnimation =
// AnimationUtils.loadAnimation(InteractiveBook.this,
// R.anim.slidein_to_left);
// Animation outAnimation =
// AnimationUtils.loadAnimation(InteractiveBook.this,
// R.anim.slideout_to_left);
// pages.setInAnimation(inAnimation);
// pages.setOutAnimation(outAnimation);
pages.clearAnimation();
pages.setInAnimation(slideinToLeft);
pages.setOutAnimation(slideoutToLeft);
pages.showNext();
}
});
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.interactive_book, menu);
return true;
}
}