android ViewPager,ViewFlipper,ViewFlow实现左右滑动

来源：互联网发布：淘宝短信链接编辑：程序博客网时间：2024/05/01 17:42

开篇

首页只是作为ViewPager，ViewFlipper，ViewFlow的入口，提供三个Button进行跳转。

1. ViewPager

先看看官方文档怎么介绍ViewPager的：http://developer.android.com/reference/android/support/v4/view/ViewPager.html

继承关系如下：

java.lang.Object

android.view.View

android.view.ViewGroup

android.support.v4.view.ViewPager

ViewPager做为容器类，可以结合View（Layout）和Fragment（Android 3.0 才引入的），官方文档说ViewPager+Fragment配合使用更好。ViewPager不在android sdk 自带jar包中，来源google 的补充组件android-support-v4.jar，没有的话可以通过eclipse下载和自己下载再添加到相应的工程中，本例用的是android-support-v13.jar，完全兼容android-support-v4.jar，看看android-support-v13.jar的目录结构：

[android-support-v13.jar下载]

切入正题，ViewPager用法如下：

配置文件：viewpager_layout.xml:

<?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" >        <android.support.v4.view.ViewPager        android:id="@+id/viewpager"        android:layout_width="fill_parent"        android:layout_height="wrap_content" /></RelativeLayout>

源文件如下ViewPagerActivity.java如下：

package com.xyz.vvv.ViewPager;import java.util.ArrayList;import com.xyz.vvv.R;import android.app.ActionBar;import android.app.ActionBar.LayoutParams;import android.app.ActionBar.Tab;import android.app.ActionBar.TabListener;import android.app.Activity;import android.app.Fragment;import android.app.FragmentTransaction;import android.content.Context;import android.os.Bundle;import android.support.v13.app.FragmentPagerAdapter;import android.support.v4.view.ViewPager;import android.support.v4.view.ViewPager.OnPageChangeListener;import android.view.LayoutInflater;import android.view.View;public class ViewPagerActivity extends Activity {    private ViewPager mViewPager;    private ViewPagerAdapter mAdapter;    private ActionBar mTabBar;    @Override    protected void onCreate(Bundle savedInstanceState) {        // TODO Auto-generated method stub        super.onCreate(savedInstanceState);        setContentView(R.layout.viewpager_layout);        mViewPager = (ViewPager) findViewById(R.id.viewpager);        mAdapter = new ViewPagerAdapter(this, mViewPager);        mTabBar = getActionBar();        mAdapter.addTab(mTabBar.newTab().setIcon(R.drawable.tab_icon_qworld),                FirstFragment.class, null);        mAdapter.addTab(mTabBar.newTab().setIcon(R.drawable.tab_icon_group),                SecondFragment.class, null);        mAdapter.addTab(mTabBar.newTab().setIcon(R.drawable.tab_icon_friends),                ThreeFragment.class, null);        mAdapter.addTab(mTabBar.newTab().setIcon(R.drawable.tab_icon_recent),                FourFragment.class, null);    }    private View getCustomView() {        return getLayoutInflater().inflate(R.layout.title_panel_layout, null);    }    private static class ViewPagerAdapter extends FragmentPagerAdapter            implements TabListener, OnPageChangeListener {        private Context mContext;        private ActionBar mActionBar = null;        private ViewPager mViewPager = null;        private ArrayList<TabInfo> mTabList = new ArrayList<TabInfo>();        public ViewPagerAdapter(Activity activity, ViewPager viewPager) {            // TODO Auto-generated constructor stub            super(activity.getFragmentManager());            mContext = activity;            mActionBar = activity.getActionBar();            /*             * mActionBar.setCustomView(getCustomView(), new LayoutParams(             * LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT));             */            mActionBar.setDisplayOptions(mActionBar.getDisplayOptions()                    ^ ActionBar.DISPLAY_SHOW_HOME                    ^ ActionBar.DISPLAY_SHOW_TITLE, ActionBar.DISPLAY_SHOW_HOME                    | ActionBar.DISPLAY_SHOW_TITLE);            mActionBar.setDisplayShowHomeEnabled(false);            mActionBar.setNavigationMode(ActionBar.NAVIGATION_MODE_TABS);            mViewPager = viewPager;            mViewPager.setAdapter(this);            mViewPager.setOnPageChangeListener(this);        }        /** Override OnPageChangeListener start **/        @Override        public void onPageScrollStateChanged(int arg0) {            // TODO Auto-generated method stub        }        @Override        public void onPageScrolled(int position, float positionOffset,                int positionOffsetPixels) {            // TODO Auto-generated method stub        }        @Override        public void onPageSelected(int position) {            // TODO Auto-generated method stub            mActionBar.setSelectedNavigationItem(position);        }        /** Override OnPageChangeListener end **/        /** Override TabListener start **/        @Override        public void onTabSelected(Tab tab, FragmentTransaction ft) {            // TODO Auto-generated method stub            Object tag = tab.getTag();            for (int i = 0; i < mTabList.size(); i++) {                if (mTabList.get(i) == tag) {                    mViewPager.setCurrentItem(i);                }            }        }        @Override        public void onTabUnselected(Tab tab, FragmentTransaction ft) {            // TODO Auto-generated method stub        }        @Override        public void onTabReselected(Tab tab, FragmentTransaction ft) {            // TODO Auto-generated method stub        }        /** Override TabListener end **/        /** Override FragmentPagerAdapter start **/        @Override        public Fragment getItem(int position) {            // TODO Auto-generated method stub            TabInfo tab = mTabList.get(position);            if (tab.fragment == null) {                tab.fragment = Fragment.instantiate(mContext,                        tab.clazz.getName(), tab.bundle);            }            return tab.fragment;        }        @Override        public int getCount() {            // TODO Auto-generated method stub            return mTabList.size();        }        /** Override FragmentPagerAdapter end **/        private View getCustomView() {            LayoutInflater inflater = (LayoutInflater) mContext                    .getSystemService(Context.LAYOUT_INFLATER_SERVICE);            return inflater.inflate(R.layout.title_panel_layout, null);        }        public void addTab(Tab tab, Class<?> clazz, Bundle bundle) {            TabInfo tabInfo = new TabInfo(clazz, bundle);            tab.setTag(tabInfo);            tab.setTabListener(this);            mTabList.add(tabInfo);            mActionBar.addTab(tab);            notifyDataSetChanged();        }        private static final class TabInfo {            private final Class<?> clazz;            private final Bundle bundle;            Fragment fragment;            TabInfo(Class<?> clazz, Bundle bundle) {                this.clazz = clazz;                this.bundle = bundle;            }        }    }}

里面用到的FirstFragment，SecondFragment，ThreeFragment，FourFragment分别继承Fragment，运行效果如下：

第一个就弄里个TextView，复杂的界面开发者任由发挥了，第二个和第四个都是ListView，第三个ExpandableListView，ListView的使用难点就是写适配器咯，本例是继承BaseAdapter的。ExpandableListView需要一个继承BaseExpandableListAdapter的适配器[不会的请看：ExpandableListView用法]。

2.ViewFlipper

ViewFilpper控件是系统自带控件之一，主要为在同一个屏幕间的切换及设置动画效果，且可以自动播放，用法如下：

配置文件：viewflipper_layout.xml

<?xml version="1.0" encoding="utf-8"?><RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"    xmlns:xyz="http://schemas.android.com/apk/res/com.xyz.vvv"    android:layout_width="fill_parent"    android:layout_height="fill_parent" >    <ViewFlipper        android:id="@+id/viewflipper"        android:layout_width="match_parent"        android:layout_height="match_parent"        android:inAnimation="@anim/slide_in"        android:outAnimation="@anim/slide_out"        android:flipInterval="2000" >        <include layout="@layout/viewflipper_one_layout" />        <include layout="@layout/viewflipper_two_layout" />        <include layout="@layout/viewflipper_three_layout" />        <include layout="@layout/viewflipper_four_layout" />        <include layout="@layout/viewflipper_five_layout" />    </ViewFlipper>    <!--      <com.xyz.vvv.PageControlView        android:id="@+id/viewflipper_indicator"        android:layout_width="fill_parent"        android:layout_height="wrap_content"        android:layout_marginBottom="25dip"        android:gravity="center_horizontal"        android:layout_alignParentBottom="true"        xyz:cell_width="@dimen/indicator_width"        xyz:cell_height="@dimen/indicator_height" />    --></RelativeLayout>

被注释的部分是指示器，那五个layout里都是一个ImageView，本例图片中画有指示器，PageControlView就不需要啦。

android:autoStart="true" <<==>> mViewFlipper.startFlipping(); //自动播放

android:flipInterval="2000" <<==>>mViewFlipper.setFilpInterval(2000); //设置View之间切换的时间间隔

android:inAnimation="@anim/slide_in", android:outAnimation="@anim/slide_out" 对应方法：mViewFlipper.setInAnimation，

mViewFlipper.setOutAnimation。

源文件：ViewFlipperActivity.java

package com.xyz.vvv.ViewFlipper;import com.xyz.vvv.R;import android.app.Activity;import android.os.Bundle;import android.view.GestureDetector;import android.view.GestureDetector.OnGestureListener;import android.view.MotionEvent;import android.view.View;import android.view.View.OnTouchListener;import android.widget.ViewFlipper;public class ViewFlipperActivity extends Activity implements OnGestureListener,        OnTouchListener {    private ViewFlipper mViewFlipper;    private GestureDetector mGestureDetector;    @Override    protected void onCreate(Bundle savedInstanceState) {        // TODO Auto-generated method stub        super.onCreate(savedInstanceState);        setContentView(R.layout.viewflipper_layout);        mGestureDetector = new GestureDetector(this);        mViewFlipper = (ViewFlipper) findViewById(R.id.viewflipper);        mViewFlipper.setOnTouchListener(this);        mViewFlipper.startFlipping();    }    @Override    public boolean onDown(MotionEvent e) {        // TODO Auto-generated method stub        return false;    }    @Override    public void onShowPress(MotionEvent e) {        // TODO Auto-generated method stub    }    @Override    public boolean onSingleTapUp(MotionEvent e) {        // TODO Auto-generated method stub        return false;    }    @Override    public boolean onScroll(MotionEvent e1, MotionEvent e2, float distanceX,            float distanceY) {        // TODO Auto-generated method stub        return false;    }    @Override    public void onLongPress(MotionEvent e) {        // TODO Auto-generated method stub    }    @Override    public boolean onFling(MotionEvent e1, MotionEvent e2, float velocityX,            float velocityY) {        // TODO Auto-generated method stub        if (e2.getX() - e1.getX() > 0) {            //mViewFlipper.showPrevious();        } else {            //mViewFlipper.showNext();        }        return true;    }    @Override    public boolean onTouch(View v, MotionEvent event) {        // TODO Auto-generated method stub        mGestureDetector.onTouchEvent(event);        return true;    }}

效果图如下：

图片太宽了，还有一张没加进来（图片来自手机QQ）。

这是ViewFlipper静态加载View，动态加载View请看：ViewFlipper动态加载View

3.ViewFlow

Viewflow 是 Android 平台上一个视图切换的效果库，非标准的得自己下载。ViewFlow 相当于 Android UI 部件提供水平滚动的 ViewGroup，使用 Adapter 进行条目绑定。这个拿来主义 ^-^

按图说话吧：带圆点的指示器。

配置文件：circle_viewflow_layout.xml

<?xml version="1.0" encoding="utf-8"?><FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"    xmlns:xyz="http://schemas.android.com/apk/res/com.xyz.vvv"    android:layout_width="fill_parent"    android:layout_height="fill_parent"    android:orientation="vertical" >    <org.taptwo.android.widget.ViewFlow        android:id="@+id/viewflow"        android:layout_width="fill_parent"        android:layout_height="fill_parent"        xyz:sidebuffer="3" >    </org.taptwo.android.widget.ViewFlow>    <org.taptwo.android.widget.CircleFlowIndicator        android:id="@+id/viewflowindic"        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:layout_gravity="bottom|center_horizontal"        android:padding="10dip"        android:layout_marginBottom="10dip"        xyz:fadeOut="1000"        xyz:inactiveType="stroke" /></FrameLayout>

源文件：CircleViewFlowActivity.java

package com.xyz.vvv.ViewFlow;import org.taptwo.android.widget.CircleFlowIndicator;import org.taptwo.android.widget.ViewFlow;import com.xyz.vvv.R;import android.app.Activity;import android.content.Context;import android.content.res.Configuration;import android.os.Bundle;import android.view.LayoutInflater;import android.view.View;import android.view.ViewGroup;import android.widget.BaseAdapter;import android.widget.ImageView;public class CircleViewFlowActivity extends Activity {    private ViewFlow mViewFlow;    private CircleFlowIndicator mIndicator = null;    /** Called when the activity is first created. */    @Override    public void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setTitle(R.string.circle_title);        setContentView(R.layout.circle_viewflow_layout);        mViewFlow = (ViewFlow) findViewById(R.id.viewflow);        mViewFlow.setAdapter(new ViewFlowAdapter(this), 0);        mIndicator = (CircleFlowIndicator) findViewById(R.id.viewflowindic);        mViewFlow.setFlowIndicator(mIndicator);    }    @Override    public void onConfigurationChanged(Configuration newConfig) {        super.onConfigurationChanged(newConfig);        mViewFlow.onConfigurationChanged(newConfig);    }    private class ViewFlowAdapter extends BaseAdapter {        private Context mContext;        private LayoutInflater mInflater = null;        private final int[] mImageIds = { R.drawable.cupcake, R.drawable.donut,                R.drawable.eclair, R.drawable.froyo, R.drawable.gingerbread,                R.drawable.honeycomb, R.drawable.icecream };        public ViewFlowAdapter(Context ctx) {            mContext = ctx;            mInflater = (LayoutInflater) mContext                    .getSystemService(Context.LAYOUT_INFLATER_SERVICE);        }        @Override        public int getCount() {            // TODO Auto-generated method stub            return mImageIds.length;        }        @Override        public Integer getItem(int position) {            // TODO Auto-generated method stub            return mImageIds[position];        }        @Override        public long getItemId(int position) {            // TODO Auto-generated method stub            return position;        }        @Override        public View getView(int position, View convertView, ViewGroup parent) {            // TODO Auto-generated method stub            if (convertView == null) {                convertView = mInflater.inflate(R.layout.circle_viewflow_item_layout,                        null);            }            ((ImageView) convertView.findViewById(R.id.img_view))                    .setImageResource(getItem(position));            return convertView;        }    }}

ViewFlow还有其他几个例子，个人觉得用的不多，就不贴啦，感兴趣的可以下载下来研究下。

源码下载：http://download.csdn.net/detail/zhouyuanjing/4886174

~~完~~