<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
                android:layout_width="match_parent"
                android:layout_height="match_parent">
    <!-- 定义一个ViewSwitcher组件 -->
    <ViewSwitcher
        android:id="@+id/viewSwitcher"
        android:layout_width="match_parent"
        android:layout_height="match_parent" />

    <!-- 定义滚动到上一屏的按钮 -->
    <Button
        android:id="@+id/prev_btn"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentBottom="true"
        android:layout_alignParentLeft="true"
        android:text="&lt;" />
    <!-- 定义滚动到下一屏的按钮 -->
    <Button
        android:id="@+id/next_btn"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentBottom="true"
        android:layout_alignParentRight="true"
        android:text="&gt;" />
</RelativeLayout>

<?xml version="1.0" encoding="utf-8"?>
<GridView xmlns:android="http://schemas.android.com/apk/res/android"
          android:layout_width="match_parent"
          android:numColumns="4"
          android:layout_height="match_parent">
</GridView>

<?xml version="1.0" encoding="utf-8"?>
<!-- 定义一个垂直的LinearLayout，该容器中放置一个ImageView和一个TextView -->
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
              android:layout_width="match_parent"
              android:layout_height="match_parent"
              android:gravity="center"
              android:orientation="vertical"
              android:padding="10dp">

    <ImageView
        android:id="@+id/icon_img"
        android:layout_width="48dp"
        android:layout_height="48dp" />

    <TextView
        android:id="@+id/name_tv"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:gravity="center" />
</LinearLayout>

package com.jinyu.cqkxzsxy.android.advancedviewsample.entity;

/**
 * @创建者 鑫鱻
 * @描述 Android零基础入门到精通系列教程，欢迎关注微信公众号ShareExpert
 */
public class ViewSwitcherItemData {
    private String name; // 应用程序名称
    private int icon;  // 应用程序图标

    public ViewSwitcherItemData(String name, int icon) {
        this.name = name;
        this.icon = icon;
    }

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    public int getIcon() {
        return icon;
    }

    public void setIcon(int icon) {
        this.icon = icon;
    }
}

package com.jinyu.cqkxzsxy.android.advancedviewsample.adapter;

import android.content.Context;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.ImageView;
import android.widget.TextView;

import com.jinyu.cqkxzsxy.android.advancedviewsample.R;
import com.jinyu.cqkxzsxy.android.advancedviewsample.ViewSwitcherActivity;
import com.jinyu.cqkxzsxy.android.advancedviewsample.entity.ViewSwitcherItemData;

import java.util.List;

/**
 * @创建者 鑫鱻
 * @描述 Android零基础入门到精通系列教程，欢迎关注微信公众号ShareExpert
 */
public class ViewSwitcherBaseAdapter extends BaseAdapter {
    private Context mContext = null;
    private List<ViewSwitcherItemData> mItemDatas = null;

    public ViewSwitcherBaseAdapter(Context context, List<ViewSwitcherItemData> itemDatas) {
        this.mContext = context;
        this.mItemDatas = itemDatas;
    }

    @Override
    public int getCount() {
        // 如果已经到了最后一屏，且应用程序的数量不能整除NUMBER_PER_SCREEN
        if (ViewSwitcherActivity.screenNo == ViewSwitcherActivity.screenCount - 1
                && mItemDatas.size() % ViewSwitcherActivity.NUMBER_PER_SCREEN != 0) {
            // 最后一屏显示的程序数为应用程序的数量对NUMBER_PER_SCREEN求余
            return mItemDatas.size() % ViewSwitcherActivity.NUMBER_PER_SCREEN;
        }
        // 否则每屏显示的程序数量为NUMBER_PER_SCREEN
        return ViewSwitcherActivity.NUMBER_PER_SCREEN;
    }

    @Override
    public ViewSwitcherItemData getItem(int position) {
        // 根据screenNo计算第position个列表项的数据
        return mItemDatas.get(
                ViewSwitcherActivity.screenNo * ViewSwitcherActivity.NUMBER_PER_SCREEN + position);
    }

    @Override
    public long getItemId(int position) {
        return position;
    }

    @Override
    public View getView(int position, View convertView, ViewGroup parent) {
        ViewHolder holder = null;
        if (null == convertView) {
            // 加载R.layout.item布局文件
            convertView = LayoutInflater.from(mContext).inflate(R.layout.slide_gridview_item, null);
            holder = new ViewHolder();
            holder.iconImg = (ImageView)convertView.findViewById(R.id.icon_img);
            holder.nameTv = (TextView)convertView.findViewById(R.id.name_tv);
            convertView.setTag(holder);
        } else {
            holder = (ViewHolder) convertView.getTag();
        }

        holder.iconImg.setImageResource(getItem(position).getIcon());
        holder.nameTv.setText(getItem(position).getName());
        return convertView;
    }

    private class ViewHolder{
        ImageView iconImg;
        TextView nameTv;
    }
}

package com.jinyu.cqkxzsxy.android.advancedviewsample;

import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.view.View;
import android.widget.Button;
import android.widget.GridView;
import android.widget.ViewSwitcher;

import com.jinyu.cqkxzsxy.android.advancedviewsample.adapter.ViewSwitcherBaseAdapter;
import com.jinyu.cqkxzsxy.android.advancedviewsample.entity.ViewSwitcherItemData;

import java.util.ArrayList;
import java.util.List;

/**
 * @创建者 鑫鱻
 * @描述 Android零基础入门到精通系列教程，欢迎关注微信公众号ShareExpert
 */
public class ViewSwitcherActivity extends AppCompatActivity implements View.OnClickListener {
    // 定义一个常量，用于显示每屏显示的应用程序数
    public static final int NUMBER_PER_SCREEN = 12;
    // 记录当前正在显示第几屏的程序
    public static int screenNo = -1;
    // 保存程序所占的总屏数
    public static int screenCount;

    private ViewSwitcher mViewSwitcher = null;
    private Button mPrevBtn = null;
    private Button mNextBtn = null;
    private ViewSwitcherBaseAdapter mAdapter = null;
    // 保存系统所有应用程序的List集合
    private List<ViewSwitcherItemData> mItemDatas = new ArrayList<ViewSwitcherItemData>();

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.viewswitcher_layout);

        // 获取界面组件
        mViewSwitcher = (ViewSwitcher) findViewById(R.id.viewSwitcher);
        mPrevBtn = (Button) findViewById(R.id.prev_btn);
        mNextBtn = (Button) findViewById(R.id.next_btn);

        mViewSwitcher.setFactory(new ViewSwitcher.ViewFactory() {
            // 实际上就是返回一个GridView组件
            @Override
            public View makeView() {
                // 加载R.layout.slide_gridview组件，实际上就是一个GridView组件
                return ViewSwitcherActivity.this.getLayoutInflater()
                        .inflate(R.layout.slide_gridview, null);
            }
        });

        // 创建一个包含40个元素的List集合，用于模拟包含40个应用程序
        for (int i = 0; i < 40; i++) {
            ViewSwitcherItemData item =
                    new ViewSwitcherItemData("item" + i, R.mipmap.ic_launcher);
            mItemDatas.add(item);
        }

        // 计算应用程序所占的总屏数
        // 如果应用程序的数量能整除NUMBER_PER_SCREEN，除法的结果就是总屏数
        // 如果不能整除，总屏数应该是除法的结果再加1
        screenCount = mItemDatas.size() % NUMBER_PER_SCREEN == 0 ?
                mItemDatas.size() / NUMBER_PER_SCREEN :
                mItemDatas.size() / NUMBER_PER_SCREEN + 1;

        mAdapter = new ViewSwitcherBaseAdapter(this, mItemDatas);

        mPrevBtn.setOnClickListener(this);
        mNextBtn.setOnClickListener(this);

        // 页面加载时先显示第一屏
        next();
    }

    @Override
    public void onClick(View view) {
        switch (view.getId()){
            case R.id.prev_btn:
                prev();
                break;
            case R.id.next_btn:
                next();
                break;
            default:
                break;
        }
    }

    private void next() {
        if (screenNo < screenCount - 1) {
            screenNo++;
            // 为ViewSwitcher的组件显示过程设置动画
            mViewSwitcher.setInAnimation(this, R.anim.slide_in_right);
            // 为ViewSwitcher的组件隐藏过程设置动画
            mViewSwitcher.setOutAnimation(this, R.anim.slide_out_left);
            // 控制下一屏将要显示的GridView对应的Adapter
            ((GridView) mViewSwitcher.getNextView()).setAdapter(mAdapter);
            // 单击右边按钮，显示下一屏
            // 学习手势检测后，也可通过手势检测实现显示下一屏
            mViewSwitcher.showNext();
        }
    }

    private void prev() {
        if (screenNo > 0) {
            screenNo--;
            // 为ViewSwitcher的组件显示过程设置动画
            mViewSwitcher.setInAnimation(this, android.R.anim.slide_in_left);
            // 为ViewSwitcher的组件隐藏过程设置动画
            mViewSwitcher.setOutAnimation(this, android.R.anim.slide_out_right);
            // 控制下一屏将要显示的GridView对应的 Adapter
            ((GridView) mViewSwitcher.getNextView()).setAdapter(mAdapter);
            // 单击左边按钮，显示上一屏，当然可以采用手势
            // 学习手势检测后，也可通过手势检测实现显示上一屏
            mViewSwitcher.showPrevious();
        }
    }
}

<?xml version="1.0" encoding="utf-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android">
    <!-- 设置从右边拖进来的动画
    android:duration指定动画持续时间  -->
    <translate
        android:fromXDelta="100%p"
        android:toXDelta="0"
        android:duration="@android:integer/config_mediumAnimTime" />
</set>

<?xml version="1.0" encoding="utf-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android">
    <!-- 设置从左边拖出去的动画
    android:duration指定动画持续时间 -->
    <translate
        android:fromXDelta="0"
        android:toXDelta="-100%p"
        android:duration="@android:integer/config_mediumAnimTime" />
</set>