ANDROID_MARS学习笔记_S02_007_Animation第一种使用方式：代码

一、简介

二、代码
1.xml
(1)activity_main.xml

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="vertical" android:layout_width="fill_parent"
    android:layout_height="fill_parent">

    <Button android:id="@+id/scaleButtonId" android:layout_width="fill_parent"
        android:layout_height="wrap_content" android:layout_alignParentBottom="true"
        android:text="测试scale动画效果" />
        
    <Button android:id="@+id/rotateButtonId" android:layout_width="fill_parent"
        android:layout_height="wrap_content" android:layout_above="@id/scaleButtonId"
        android:text="测试rotate动画效果" />
        
    <Button android:id="@+id/alphaButtonId" android:layout_width="fill_parent"
        android:layout_height="wrap_content" android:layout_above="@id/rotateButtonId"
        android:text="测试alpha动画效果" />

    <Button android:id="@+id/translateButtonId"
        android:layout_width="fill_parent" android:layout_height="wrap_content"
        android:layout_above="@id/alphaButtonId" android:text="测试translate动画效果" />
        
    <LinearLayout android:orientation="vertical"
        android:layout_width="fill_parent" android:layout_height="fill_parent">

        <ImageView android:id="@+id/imageViewId"
            android:layout_width="wrap_content" android:layout_height="100dp"
            android:layout_centerInParent="true" android:layout_marginTop="100dip"
            android:src="@drawable/android" />
    </LinearLayout>
</RelativeLayout>

2.java
(1)MainActivity.java

package com.animation1;

import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.animation.AlphaAnimation;
import android.view.animation.Animation;
import android.view.animation.AnimationSet;
import android.view.animation.RotateAnimation;
import android.view.animation.ScaleAnimation;
import android.view.animation.TranslateAnimation;
import android.widget.Button;
import android.widget.ImageView;

public class MainActivity extends Activity {

    private ImageView imageView = null;
    private Button rotateButton, scaleButton, alphaButton, translateButton = null;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        
        imageView = (ImageView) findViewById(R.id.imageViewId);
        
        rotateButton = (Button) findViewById(R.id.rotateButtonId);
        scaleButton = (Button) findViewById(R.id.scaleButtonId);
        alphaButton = (Button) findViewById(R.id.alphaButtonId);
        translateButton = (Button) findViewById(R.id.translateButtonId);
        
        rotateButton.setOnClickListener(new RotateButtonListener());
        scaleButton.setOnClickListener(new ScaleButtonListener());
        alphaButton.setOnClickListener(new AlphaButtonListener());
        translateButton.setOnClickListener(new TranslateButtonListener());
        
    }
    
    private class RotateButtonListener implements OnClickListener {
        @Override
        public void onClick(View v) {
            AnimationSet animationSet = new AnimationSet(true);
            RotateAnimation rotateAnimation = new RotateAnimation(0, 360, 
                    AnimationSet.RELATIVE_TO_PARENT, 1f,
                    Animation.RELATIVE_TO_PARENT, 0f);
            rotateAnimation.setDuration(5000);
            animationSet.addAnimation(rotateAnimation);
            imageView.startAnimation(animationSet);
        }
    }
    
    private class ScaleButtonListener implements OnClickListener {
        @Override
        public void onClick(View v) {
            AnimationSet animationSet = new AnimationSet(true);
            ScaleAnimation scaleAnimation = new ScaleAnimation(1, 0.1f, 1, 0.1f, 
                    Animation.RELATIVE_TO_SELF, 0.5f, Animation.RELATIVE_TO_SELF, 0.5f);
            animationSet.addAnimation(scaleAnimation);
            animationSet.setStartOffset(1000);
            animationSet.setFillAfter(true);
            animationSet.setFillBefore(false);
            animationSet.setDuration(2000);
            imageView.startAnimation(animationSet);
        }
    }
    
    private class AlphaButtonListener implements OnClickListener {
        @Override
        public void onClick(View v) {
            AnimationSet animationSet = new AnimationSet(true);
            AlphaAnimation alphaAnimation = new AlphaAnimation(1, 0);
            alphaAnimation.setDuration(1000);
            animationSet.addAnimation(alphaAnimation);
            imageView.startAnimation(animationSet);
        }
    }
    
    private class TranslateButtonListener implements OnClickListener {
        @Override
        public void onClick(View v) {
            AnimationSet animationSet = new AnimationSet(true);
            TranslateAnimation translateAnimation = new TranslateAnimation(
                    Animation.RELATIVE_TO_SELF, 0f, 
                    Animation.RELATIVE_TO_SELF, 0.5f, 
                    Animation.RELATIVE_TO_SELF, 0f, 
                    Animation.RELATIVE_TO_SELF, 1.0f);
            translateAnimation.setDuration(1000);
            animationSet.addAnimation(translateAnimation);
            imageView.startAnimation(translateAnimation);
        }
    }
}