程序实现移动+缩放

准备一张名为picture的图片。

在main.xml中：

<LinearLayout

xmlns:android="http://schemas.android.com/apk/res/android"

android:layout_width="fill_parent"

android:layout_height="fill_parent"

android:background="#000000"

android:orientation="vertical"

android:gravity="center_horizontal">

<ImageView

android:id="@+id/mlyw"

android:layout_marginTop="8dp"

android:layout_width="fill_parent"

android:layout_height="wrap_content"

android:src="@drawable/picture"/>

<Button

android:id="@+id/but"

android:layout_width="100dp"

android:layout_height="40dp"

android:layout_marginTop="20dp"

android:background="#3399ff"

android:textColor="#ffffff"

android:text="开始移动缩放"/>

</LinearLayout>

在MyAnimationDemo.java中：

package com.li.animation;

import android.os.Bundle;

import android.annotation.SuppressLint;

import android.app.Activity;

import android.view.Menu;

import android.view.MenuItem;

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;

import android.support.v4.app.NavUtils;

@SuppressLint("ParserError")

public class MyAnimationDemo extends Activity {

private ImageView mlyw = null;

private Button but = null;

@Override

public void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

super.setContentView(R.layout.main);

this.mlyw = (ImageView)super.findViewById(R.id.mlyw);

this.but = (Button)super.findViewById(R.id.but);

this.but.setOnClickListener(new OnClickListenerImpl());

}

private class OnClickListenerImpl implements OnClickListener{

public void onClick(View v) {

AnimationSet set = new AnimationSet(true);

TranslateAnimation tran = new TranslateAnimation(

Animation.RELATIVE_TO_SELF,0.0f , // X轴开始位置

Animation.RELATIVE_TO_SELF,0.5f , // X轴移动的结束位置

Animation.RELATIVE_TO_SELF,0.0f , // Y轴开始位置

Animation.RELATIVE_TO_SELF,1.5f ); // Y轴移动位置

ScaleAnimation scale = new ScaleAnimation(1, 0.0f, 1, 0.0f,

Animation.RELATIVE_TO_SELF, 0.5f,

Animation.RELATIVE_TO_SELF, 0.5f);

scale.setRepeatCount(2) ; //重复两次

set.addAnimation(tran); // 增加动画

set.addAnimation(scale); // 增加动画

set.setDuration(5000); // 5秒完成动画

MyAnimationDemo.this.mlyw.startAnimation(set); // 启动动画

}

}

}