Android图形与图像处理-补间动画
Android图形与图像处理-补间动画
Android图形与图像处理-补间动画
创建项目:TweenAnim
项目运行效果:
项目代码:
动画资源文件:两个动画资源文件
anim.xml
- <?xml version="1.0" encoding="utf-8"?>
- <!-- 指定动画匀速改变 -->
- <set xmlns:android="http://schemas.android.com/apk/res/android"
- android:interpolator="@android:anim/linear_interpolator">
- <!-- 定义缩放变换 -->
- <scale android:fromXScale="1.0"
- android:toXScale="0.01"
- android:fromYScale="1.0"
- android:toYScale="0.01"
- android:pivotX="50%"
- android:pivotY="50%"
- android:fillAfter="true"
- android:duration="3000"/>
- <!-- 定义透明度的变换 -->
- <alpha
- android:fromAlpha="1"
- android:toAlpha="0.05"
- android:duration="3000"
- />
- <!-- 定义旋转变换 -->
- <rotate
- android:fromDegrees="0"
- android:toDegrees="1800"
- android:pivotX="50%"
- android:pivotY="50%"
- android:duration="3000"/>
- </set>
reverse.xml
- <?xml version="1.0" encoding="utf-8"?>
- <!-- 指定动画匀速改变 -->
- <set xmlns:android="http://schemas.android.com/apk/res/android"
- android:interpolator="@android:anim/linear_interpolator"
- android:startOffset="3000">
- <!-- 定义缩放变换 -->
- <scale android:fromXScale="0.01"
- android:toXScale="1"
- android:fromYScale="0.01"
- android:toYScale="1"
- android:pivotX="50%"
- android:pivotY="50%"
- android:fillAfter="true"
- android:duration="3000"
- />
- <!-- 定义透明度的变换 -->
- <alpha
- android:fromAlpha="0.05"
- android:toAlpha="1"
- android:duration="3000"
- />
- <!-- 定义旋转变换 -->
- <rotate
- android:fromDegrees="1800"
- android:toDegrees="0"
- android:pivotX="50%"
- android:pivotY="50%"
- android:duration="3000"
- />
- </set>
布局文件:main.xml
- <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
- xmlns:tools="http://schemas.android.com/tools"
- android:id="@+id/LinearLayout1"
- android:layout_width="match_parent"
- android:layout_height="match_parent"
- android:orientation="vertical"
- android:gravity="center_horizontal" >
- <Button
- android:id="@+id/bn"
- android:layout_width="wrap_content"
- android:layout_height="wrap_content"
- android:text="播放动画"
- />
- <ImageView
- android:id="@+id/flower"
- android:layout_width="wrap_content"
- android:layout_height="wrap_content"
- android:src="@drawable/flower"
- />
- </LinearLayout>
- package wwj.tweenanim;
- import java.util.Timer;
- import java.util.TimerTask;
- import android.app.Activity;
- import android.os.Bundle;
- import android.os.Handler;
- import android.view.View;
- import android.view.View.OnClickListener;
- import android.view.animation.Animation;
- import android.view.animation.AnimationUtils;
- import android.widget.Button;
- import android.widget.ImageView;
- public class TweenAnim extends Activity {
- @Override
- public void onCreate(Bundle savedInstanceState) {
- super.onCreate(savedInstanceState);
- setContentView(R.layout.main);
- final ImageView flower = (ImageView)findViewById(R.id.flower);
- //加载第一份动画资源
- final Animation anim = AnimationUtils.loadAnimation(this, R.anim.anim);
- //设置动画结束后保留结束状态
- anim.setFillAfter(true);
- //加载第二份动画资源
- final Animation reverse = AnimationUtils.loadAnimation(this, R.anim.reverse);
- //设置动画结束后保留结束状态
- reverse.setFillAfter(true);
- Button bn = (Button)findViewById(R.id.bn);
- final Handler handler = new Handler(){
- public void handleMessage(android.os.Message msg) {
- if(msg.what == 0x123){
- flower.startAnimation(reverse);
- }
- };
- };
- bn.setOnClickListener(new OnClickListener() {
- @Override
- public void onClick(View v) {
- // TODO Auto-generated method stub
- flower.startAnimation(anim);
- //设置3。5秒后启动第二个动画
- new Timer().schedule(new TimerTask() {
- @Override
- public void run() {
- // TODO Auto-generated method stub
- handler.sendEmptyMessage(0x123);
- }
- }, 3500);
- }
- });
- }
- }
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