【Android开发】页面切换动画

Android的页面切换动画学习笔记

实现两个页面滑动切换,一些相册的效果也是如此

一个Activity的界面配置文件
activity_main.xml：

<?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里面的子控件可以被看成一页-->
    <ViewFlipper 
       android:layout_width="fill_parent"
       android:layout_height="fill_parent"
       android:id="@+id/viewFlipper"
        >
        <!-- 第一页 -->
        <LinearLayout
           android:layout_width="fill_parent"
           android:layout_height="fill_parent" 
           android:background="#339900" 
            >
            <TextView 
               android:layout_width="wrap_content"
           android:layout_height="fill_parent"
           android:text="第一页" 
                />
        </LinearLayout>
        
        <!-- 第二页 -->
        <LinearLayout
           android:layout_width="fill_parent"
           android:layout_height="fill_parent" 
            >
        <TextView 
               android:layout_width="wrap_content"
           android:layout_height="fill_parent"
           android:text="第二页" 
                />
        </LinearLayout>
        
    </ViewFlipper>


</LinearLayout>

package com.example.activitymove;

import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.view.MotionEvent;
import android.view.View;
import android.view.animation.Animation;
import android.view.animation.AnimationUtils;
import android.widget.ViewFlipper;


public class MainActivity extends Activity {


	private ViewFlipper viewFlipper;
	private float startX;
	private float endX;
	private Animation in_lefttoright;
	private Animation out_lefttoright;
	private Animation in_righttoleft;
	private Animation out_righttoleft;
	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.activity_main);
		
		
		in_lefttoright=AnimationUtils.loadAnimation(this, R.anim.enter_lefttoright);
		out_lefttoright=AnimationUtils.loadAnimation(this, R.anim.out_lefttoright);
		
		in_righttoleft=AnimationUtils.loadAnimation(this, R.anim.enter_righttoleft);
		out_righttoleft=AnimationUtils.loadAnimation(this, R.anim.out_righttoleft);
		viewFlipper=(ViewFlipper) this.findViewById(R.id.viewFlipper);
	}


	//处理触屏时间的方法
	//手在屏幕上向右滑动然后松开翻下一页，向左翻显示前一页
	public boolean onTouchEvent(MotionEvent event) {
		if(event.getAction()==MotionEvent.ACTION_DOWN){
			//记录手放在屏幕上的点位置
			startX=event.getX();
		}else if(event.getAction()==MotionEvent.ACTION_UP){
			//记录手离开屏幕上的点位置
			endX=event.getX();
			if(endX>startX){
				viewFlipper.setInAnimation(in_lefttoright);
				viewFlipper.setOutAnimation(out_lefttoright);
				viewFlipper.showNext();//显示下一页
			}else if(endX<startX){
				viewFlipper.setInAnimation(in_righttoleft);
				viewFlipper.setOutAnimation(out_righttoleft);
				viewFlipper.showPrevious();//显示前一页
			}
			return true;
		}
		return super.onTouchEvent(event);
	}
	
}

<?xml version="1.0" encoding="utf-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android"
     android:shareInterpolator="false">
	<translate 
	    android:fromXDelta="-100%p"
	    android:toXDelta="0"
	    android:duration="1000"
	    />


</set>

<?xml version="1.0" encoding="utf-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android"
     android:shareInterpolator="false">
     <!-- 这里用到了平移动画,这里只动x轴坐标就可以了 
    -100%p:这就是屏幕的宽度:这里的p代表parent,父元素的宽度,都是
    手机屏幕宽度,第一页要从-100%p移动到0,持续5秒中.
    -->
	<translate 
	    android:fromXDelta="100%p"
	    android:toXDelta="0"
	    android:duration="1000"
	    />


</set>

<?xml version="1.0" encoding="utf-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android"
     android:shareInterpolator="false">
	<translate 
	    android:fromXDelta="0"
	    android:toXDelta="100%p"
	    android:duration="1000"
	    />


</set>

</pre><pre name="code" class="html"><?xml version="1.0" encoding="utf-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android"
     android:shareInterpolator="false">
	<translate 
	    android:fromXDelta="0"
	    android:toXDelta="-100%p"
	    android:duration="1000"
	    />


</set>