ViewPager+fragment的使用

如图我在一个继承FragmentActivity的类中嵌套了3个fragment分别能实现3个不同的界面，默认展现第一个，在第一个的fragment中有个ViewPager在ViewPager中嵌套了3个不同的fragment来实现页面的跳转

主界面的代码

package org.xml.demo.fragment;

import ogg.huanxin.huadong.R;

import android.os.Bundle;

import android.support.v4.app.Fragment;

import android.support.v4.app.FragmentActivity;

import android.support.v4.app.FragmentTransaction;

import android.view.View;

import android.view.Window;

import android.widget.Button;

public class MyFragmentDemo extends FragmentActivity {

    private int index;

    // 当前fragment的index

    private int currentTabIndex;

    private Fragment[] fragments;

    private Button[] buttons;

    private HomeFeagment homeFeagment;

    private FengqiangFragment fengqiangFragment;

    private PinPaiFragment pinPaiFragment;

    @Override

    protected void onCreate(Bundle arg0) {

        // TODO Auto-generated method stub

        super.onCreate(arg0);

        requestWindowFeature(Window.FEATURE_NO_TITLE);

        super.setContentView(R.layout.myviewpagerdemo);

        setFindViewById();

        setListener();

        setControll();

    }

    private void setFindViewById() {

        // TODO Auto-generated method stub

        buttons = new Button[3];

        buttons[0] = (Button) findViewById(R.id.bb_viewdemo_shou);

        buttons[1] = (Button) findViewById(R.id.bb_viewdemo_qiang);

        buttons[2] = (Button) findViewById(R.id.bb_viewdemo_pinpai);

        // 把第一个设置成默认选中状态

        buttons[0].setSelected(true);

    }

    private void setListener() {

        // TODO Auto-generated method stub

    }

    private void setControll() {

        // TODO Auto-generated method stub

        homeFeagment = new HomeFeagment();

        fengqiangFragment = new FengqiangFragment();

        pinPaiFragment = new PinPaiFragment();

        fragments = new Fragment[] { homeFeagment, fengqiangFragment,

                pinPaiFragment };

        // 添加显示第一个fragment

        getSupportFragmentManager().beginTransaction()

                .add(R.id.rl_viewdemo_fragment, homeFeagment)

                .add(R.id.rl_viewdemo_fragment, fengqiangFragment)

                .add(R.id.rl_viewdemo_fragment, pinPaiFragment)

                .hide(fengqiangFragment).hide(pinPaiFragment)

                .show(homeFeagment).commit();

    }

    public void OnSeclet(View view) {

        switch (view.getId()) {

        case R.id.bb_viewdemo_shou:

            index = 0;

            System.out.println("ProducteTimeLimit-----" + index);

            break;

        case R.id.bb_viewdemo_qiang:

            index = 1;

            System.out.println("MyFragent" + index);

            break;

        case R.id.bb_viewdemo_pinpai:

            index = 2;

            break;

        }

        if (currentTabIndex != 0) {

            buttons[0].setSelected(false);

        }

        if (currentTabIndex != index) {

            FragmentTransaction trx = getSupportFragmentManager()

                    .beginTransaction();

            trx.hide(fragments[currentTabIndex]);

            if (!fragments[index].isAdded()) {

                trx.add(R.id.rl_viewdemo_fragment, fragments[index]);

            }

            trx.show(fragments[index]).commit();

        }

        buttons[currentTabIndex].setSelected(false);

        // 把当前tab设为选中状态

        buttons[index].setSelected(true);

        currentTabIndex = index;

    }

}

主界面xml的代码

<?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:background="#ffffff" >

    <LinearLayout

        android:id="@+id/ll_viewedemo_top"

        android:layout_width="match_parent"

        android:layout_height="60dp"

        android:layout_alignParentBottom="true"

        android:gravity="center_vertical"

        android:orientation="vertical" >

        <View

            android:layout_width="match_parent"

            android:layout_height="1dp"

            android:background="#999999" />

        <LinearLayout

            android:layout_width="match_parent"

            android:layout_height="match_parent"

            android:baselineAligned="false"

            android:gravity="center"

            android:orientation="horizontal" >

            <RelativeLayout

                android:layout_width="0dp"

                android:layout_height="match_parent"

                android:layout_weight="1" >

                <Button

                    android:id="@+id/bb_viewdemo_shou"

                    android:layout_width="match_parent"

                    android:layout_height="match_parent"

                    android:background="@android:color/white"

                    android:onClick="OnSeclet"

                    android:drawableTop="@drawable/main_topcolor"

                    android:gravity="center_vertical|center"

                    android:text="首页"

                    android:textColor="@color/main_bottoncolor"

                    android:textSize="15sp" />

            </RelativeLayout>

            <RelativeLayout

                android:layout_width="0dp"

                android:layout_height="match_parent"

                android:layout_weight="1" >

                <Button

                    android:id="@+id/bb_viewdemo_qiang"

                    android:layout_width="match_parent"

                    android:layout_height="match_parent"

                    android:onClick="OnSeclet"

                    android:background="@android:color/white"

                    android:drawableTop="@drawable/main_topcolor"

                    android:gravity="center_vertical|center"

                    android:text="最后疯抢"

                    android:textColor="@color/main_bottoncolor"

                    android:textSize="15sp" />

            </RelativeLayout>

            <RelativeLayout

                android:layout_width="0dp"

                android:layout_height="match_parent"

                android:layout_weight="1" >

                <Button

                    android:id="@+id/bb_viewdemo_pinpai"

                    android:layout_width="match_parent"

                    android:layout_height="match_parent"

                    android:onClick="OnSeclet"

                    android:background="@android:color/white"

                    android:drawableTop="@drawable/main_topcolor"

                    android:gravity="center_vertical|center"

                    android:text="品牌抢购"

                    android:textColor="@color/main_bottoncolor"

                    android:textSize="15sp" />

            </RelativeLayout>

        </LinearLayout>

    </LinearLayout>

    <RelativeLayout

        android:id="@+id/rl_viewdemo_fragment"

        android:layout_width="match_parent"

        android:layout_height="match_parent"

        android:layout_above="@id/ll_viewedemo_top" >

    </RelativeLayout>

</RelativeLayout>

其中默认显示主界面的代码为

package org.xml.demo.fragment;

import java.util.ArrayList;

import ogg.huanxin.huadong.R;

import android.os.Bundle;

import android.support.v4.app.Fragment;

import android.support.v4.app.FragmentManager;

import android.support.v4.app.FragmentPagerAdapter;

import android.support.v4.view.ViewPager;

import android.support.v4.view.ViewPager.OnPageChangeListener;

import android.util.DisplayMetrics;

import android.util.Log;

import android.view.Display;

import android.view.LayoutInflater;

import android.view.View;

import android.view.ViewGroup;

import android.widget.LinearLayout;

import android.widget.TextView;

import android.widget.LinearLayout.LayoutParams;

public class HomeFeagment extends Fragment {

    private ViewPager mPager;

    private TextView barText;

    private TextView view1, view2, view3;

    private ArrayList<Fragment> fragmentlist;

    private int currIndex;// 当前的叶卡标号

    @Override

    public View onCreateView(LayoutInflater inflater, ViewGroup container,

            Bundle savedInstanceState) {

        // TODO Auto-generated method stub

        return inflater.inflate(R.layout.homefeagment, container, false);

    }

    @Override

    public void onActivityCreated(Bundle savedInstanceState) {

        super.onActivityCreated(savedInstanceState);

        InitTextView();

        InitTextBar();

        InitViewPager();

    }

    /*

     * 初始化标签名字

     */

    private void InitTextView() {

        view1 = (TextView) getActivity().findViewById(R.id.hometext1);

        view2 = (TextView) getActivity().findViewById(R.id.hometext2);

        view3 = (TextView) getActivity().findViewById(R.id.hometext3);

        view1.setOnClickListener(new txListener(0));

        view2.setOnClickListener(new txListener(1));

        view3.setOnClickListener(new txListener(2));

    }

    private class txListener implements View.OnClickListener {

        private int index = 0;

        public txListener(int i) {

            index = i;

        }

        @Override

        public void onClick(View arg0) {

            // TODO Auto-generated method stub

            mPager.setCurrentItem(index);

        }

    }

    /*

     * 初始化图片的位移像素

     */

    private void InitTextBar() {

        // TODO Auto-generated method stub

        // barText = (TextView) super.findViewById(R.id.cursor);

        barText = (TextView) getActivity().findViewById(R.id.homecursor);

        Display display = getActivity().getWindow().getWindowManager()

                .getDefaultDisplay();

        // 得到显示的屏宽度

        DisplayMetrics metrics = new DisplayMetrics();

        display.getMetrics(metrics);

        int tabLimeLength = metrics.widthPixels / 3;

        LayoutParams lp = (LayoutParams) barText.getLayoutParams();

        lp.width = tabLimeLength;

        barText.setLayoutParams(lp);

    }

    /*

     * 初始化ViewPager

     */

    private void InitViewPager() {

        // TODO Auto-generated method stub

        mPager = (ViewPager) getActivity().findViewById(R.id.vhomePager);

        fragmentlist = new ArrayList<Fragment>();

        Fragment fragment = new Fragment1();

        Fragment fragment2 = new Fragmentview2();

        Fragment fragment3 = new Fragmentview3();

        fragmentlist.add(fragment);

        fragmentlist.add(fragment2);

        fragmentlist.add(fragment3);

        // 给ViewPager添加适配器

        // 给ViewPager设置适配器

        mPager.setAdapter(new MyFragmentPagerAdapter(getChildFragmentManager(),

                fragmentlist));

        // 设置当前显示标签页为第一页

        mPager.setCurrentItem(0);

        // mPager.setOnPageChangeListener(new MyPn);

        // 页面变化时的监听器

        mPager.setOnPageChangeListener(new MyOnpageChangeListener());

    }

    private class MyFragmentPagerAdapter extends FragmentPagerAdapter {

        private ArrayList<Fragment> list;

        public MyFragmentPagerAdapter(FragmentManager fm,

                ArrayList<Fragment> list) {

            super(fm);

            this.list = list;

            // TODO Auto-generated constructor stub

        }

        // 得到每个item

        @Override

        public Fragment getItem(int arg0) {

            // TODO Auto-generated method stub

            return list.get(arg0);

        }

        // 初始化每个页面选项

        @Override

        public Object instantiateItem(ViewGroup container, int position) {

            // TODO Auto-generated method stub

            return super.instantiateItem(container, position);

        }

        @Override

        public int getCount() {

            // TODO Auto-generated method stub

            return list.size();

        }

        @Override

        public int getItemPosition(Object object) {

            // TODO Auto-generated method stub

            return super.getItemPosition(object);

        }

    }

    private class MyOnpageChangeListener implements OnPageChangeListener {

        @Override

        public void onPageScrollStateChanged(int arg0) {

            /*

             * 此方法是在状态改变的时候调用，其中arg0这个参数 有三种状态（0，1，2）。arg0

             * ==1的时辰默示正在滑动，arg0==2的时辰默示滑动完毕了，arg0==0的时辰默示什么都没做。

             */

            if (arg0 == 0) {

                Log.e("-----------", ">>>>>>>>>>onpageselected==0");

            } else if (arg0 == 1) {

                Log.e("-----------", ">>>>>>>>>>onpageselected==1");

            } else if (arg0 == 2) {

                Log.e("-----------", ">>>>>>>>>>onpageselected==2");

            }

        }

        @Override

        public void onPageScrolled(int arg0, float arg1, int arg2) {

            /*

             * onPageScrolled(int arg0,float arg1,int arg2)

             * ，当页面在滑动的时候会调用此方法，在滑动被停止之前，此方法回一直得到 调用。 其中三个参数的含义分别为： arg0:当前页面，

             * 及你点击滑动的页面 arg1:当前页面偏移的百分比 arg2:当前页面偏移的像素位置

             */

            Log.e("-----------", "------------>>>>onpagescrolled>>>arg0=="

                    + arg0 + ">>>arg1==" + arg1 + ">>>arg2==" + arg2);

            LinearLayout.LayoutParams ll = (LayoutParams) barText

                    .getLayoutParams();

            if (currIndex == arg0) {

                ll.leftMargin = (int) (currIndex * barText.getWidth() + arg1

                        * barText.getWidth());

            } else if (currIndex > arg0) {

                ll.leftMargin = (int) (currIndex * barText.getWidth() - (1 - arg1)

                        * barText.getWidth());

            }

            barText.setLayoutParams(ll);

        }

        @Override

        public void onPageSelected(int arg0) {

            /*

             * onPageSelected(int arg0) ： 此方法是页面跳转完后得到调用，

             * arg0是你当前选中的页面的Position（位置编号）。

             */

            currIndex = arg0;

        }

    }

}

<?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:background="#eee" >

    <LinearLayout

        android:id="@+id/ll_main_text"

        android:layout_width="match_parent"

        android:layout_height="50dp"

        android:background="#FF7200"

        android:gravity="center_vertical" >

        <LinearLayout

            android:layout_width="60dp"

            android:layout_height="match_parent"

            android:gravity="center" >

            <ImageView

                android:layout_width="30dp"

                android:layout_height="30dp"

                android:contentDescription="@null"

                android:scaleType="fitCenter"

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

        </LinearLayout>

        <View

            android:layout_width="0.5dp"

            android:layout_height="match_parent"

            android:background="#FE8B40" />

        <TextView

            android:layout_width="0dp"

            android:layout_height="match_parent"

            android:layout_weight="0.8"

            android:gravity="center"

            android:text="限时购"

            android:textColor="@android:color/white"

            android:textSize="20sp" />

        <View

            android:layout_width="0.5dp"

            android:layout_height="match_parent"

            android:background="#FE8B40" />

        <LinearLayout

            android:layout_width="60dp"

            android:layout_height="match_parent"

            android:gravity="center" >

            <ImageView

                android:layout_width="30dp"

                android:layout_height="30dp"

                android:contentDescription="@null"

                android:scaleType="fitCenter"

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

        </LinearLayout>

    </LinearLayout>

    <!--  -->

    <LinearLayout

        android:layout_width="match_parent"

        android:layout_height="match_parent"

        android:layout_below="@id/ll_main_text"

        android:background="@android:color/white"

        android:orientation="vertical" >

        <LinearLayout

            android:id="@+id/linearlayout1"

            android:layout_width="match_parent"

            android:layout_height="50.0dip"

            android:layout_gravity="center"

            android:background="#FFFFFF" >

            <TextView

                android:id="@+id/hometext1"

                android:layout_width="0dp"

                android:layout_height="match_parent"

                android:layout_weight="1.0"

                android:gravity="center"

                android:text="页卡1"

                android:textColor="#000000"

                android:textSize="22.0dip" />

            <TextView

                android:id="@+id/hometext2"

                android:layout_width="0dp"

                android:layout_height="match_parent"

                android:layout_weight="1.0"

                android:gravity="center"

                android:text="页卡2"

                android:textColor="#000000"

                android:textSize="22.0dip" />

            <TextView

                android:id="@+id/hometext3"

                android:layout_width="0dp"

                android:layout_height="match_parent"

                android:layout_weight="1.0"

                android:gravity="center"

                android:text="页卡3"

                android:textColor="#000000"

                android:textSize="22.0dip" />

        </LinearLayout>

        <TextView

            android:id="@+id/homecursor"

            android:layout_width="250dp"

            android:layout_height="5dp"

            android:background="#990033" />

        <android.support.v4.view.ViewPager

            android:id="@+id/vhomePager"

            android:layout_width="wrap_content"

            android:layout_height="wrap_content"

            android:layout_gravity="center"

            android:background="#eee"

            android:flipInterval="30"

            android:persistentDrawingCache="animation" />

    </LinearLayout>

</RelativeLayout>

第二个fragment代码和xml

package org.xml.demo.fragment;

import ogg.huanxin.huadong.R;

import android.app.AlertDialog;

import android.app.AlertDialog.Builder;

import android.app.ProgressDialog;

import android.content.DialogInterface;

import android.os.Bundle;

import android.os.Handler;

import android.support.v4.app.Fragment;

import android.view.LayoutInflater;

import android.view.View;

import android.view.View.OnClickListener;

import android.view.ViewGroup;

import android.widget.Button;

public class FengqiangFragment extends Fragment implements OnClickListener {

    private Button dialogButton;

    private ProgressDialog progressDialog;

    @Override

    public View onCreateView(LayoutInflater inflater, ViewGroup container,

            Bundle savedInstanceState) {

        // TODO Auto-generated method stub

        return inflater.inflate(R.layout.fengqiangframent, container, false);

    }

    @Override

    public void onActivityCreated(Bundle savedInstanceState) {

        super.onActivityCreated(savedInstanceState);

        setFindViewById();

        setListener();

        setControll();

    }

    private void setFindViewById() {

        // TODO Auto-generated method stub

        dialogButton = (Button) getActivity().findViewById(

                R.id.bb_fengqiang_dialog);

        progressDialog = new ProgressDialog(getActivity());

        progressDialog.setMessage("正在跳转");

        // 设置返回键不能将其取消

        progressDialog.setCancelable(false);

    }

    private void setListener() {

        // TODO Auto-generated method stub

        dialogButton.setOnClickListener(this);

    }

    private void setControll() {

        // TODO Auto-generated method stub

    }

    @Override

    public void onClick(View arg0) {

        // TODO Auto-generated method stub

        switch (arg0.getId()) {

        case R.id.bb_fengqiang_dialog:

            dialogSet();

            break;

        default:

            break;

        }

    }

    /*

     * 设置一个警告框

     */

    private void dialogSet() {

        // TODO Auto-generated method stub

        AlertDialog.Builder builder = new Builder(getActivity());

        builder.setTitle("是否跳转");

        builder.setMessage("当点击    确定    时 会出现个圆形的进度条  在5秒后 自动消失 ...");

        builder.setPositiveButton("确定", new DialogInterface.OnClickListener() {

            @Override

            public void onClick(DialogInterface arg0, int arg1) {

                // TODO Auto-generated method stub

                progressDialog.show();

                new Handler().postDelayed(new Runnable() {

                    @Override

                    public void run() {

                        // TODO Auto-generated method stub

                        progressDialog.dismiss();

                    }

                }, 5000);

            }

        });

        builder.setNegativeButton("取消", new DialogInterface.OnClickListener() {

            @Override

            public void onClick(DialogInterface arg0, int arg1) {

                // TODO Auto-generated method stub

            }

        });

        builder.create().show();

    }

}

<?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" >

    <LinearLayout

        android:id="@+id/ll_main_text"

        android:layout_width="match_parent"

        android:layout_height="50dp"

        android:background="#FF7200"

        android:gravity="center_vertical" >

        <LinearLayout

            android:layout_width="60dp"

            android:layout_height="match_parent"

            android:gravity="center" >

            <ImageView

                android:layout_width="30dp"

                android:layout_height="30dp"

                android:contentDescription="@null"

                android:scaleType="fitCenter"

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

        </LinearLayout>

        <View

            android:layout_width="0.5dp"

            android:layout_height="match_parent"

            android:background="#FE8B40" />

        <TextView

            android:layout_width="0dp"

            android:layout_height="match_parent"

            android:layout_weight="0.8"

            android:gravity="center"

            android:text="限时购"

            android:textColor="@android:color/white"

            android:textSize="20sp" />

        <View

            android:layout_width="0.5dp"

            android:layout_height="match_parent"

            android:background="#FE8B40" />

        <LinearLayout

            android:layout_width="60dp"

            android:layout_height="match_parent"

            android:gravity="center" >

            <ImageView

                android:layout_width="30dp"

                android:layout_height="30dp"

                android:contentDescription="@null"

                android:scaleType="fitCenter"

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

        </LinearLayout>

    </LinearLayout>

    <Button

        android:id="@+id/bb_fengqiang_dialog"

        android:layout_width="match_parent"

        android:layout_height="wrap_content"

        android:layout_marginTop="10dp"

        android:text="hello word" />

</LinearLayout>

第三个fragment

package org.xml.demo.fragment;

import ogg.huanxin.huadong.R;

import android.os.Bundle;

import android.support.v4.app.Fragment;

import android.view.LayoutInflater;

import android.view.View;

import android.view.ViewGroup;

public class PinPaiFragment extends Fragment {

    @Override

    public View onCreateView(LayoutInflater inflater, ViewGroup container,

            Bundle savedInstanceState) {

        // TODO Auto-generated method stub

        return inflater.inflate(R.layout.pinpaifragment, container, false);

    }

    @Override

    public void onActivityCreated(Bundle savedInstanceState) {

        super.onActivityCreated(savedInstanceState);

    }
}

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