android开发步步为营之53:viewpager+fragment构造可左右滑动标签页效果

        可滑动的标签页是很多应用的用来做外面框架的，比如微信，微博等等，我这里实现的效果是下面是主标签页，然后中间一个的标签页里面又可以继续左右滑动，等于是标签页内部再嵌套标签页，用到的组件主要有：用于滑动效果的viewpager,以及用于实现每个tab页功能的fragment，先看看效果图：

         

         第一步：设计页面activity_learn_fragment.xml

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"    xmlns:tools="http://schemas.android.com/tools"    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="fill_parent" />     <LinearLayout        android:layout_width="fill_parent"        android:layout_height="wrap_content"        android:id="@+id/layout_tab"        android:layout_alignParentBottom="true"        android:orientation="horizontal" >        <TextView            android:id="@+id/tv_earn"            android:layout_width="match_parent"            android:layout_height="50dp"            android:layout_weight="1"            android:background="#996699"            android:gravity="center"            android:text="Earn"            android:textColor="#222222" />        <TextView            android:id="@+id/tv_withdraw"            android:layout_width="match_parent"            android:layout_height="50dp"            android:layout_weight="1"            android:background="#999999"            android:gravity="center"            android:text="Withdraw"            android:textColor="#222222" />        <TextView            android:id="@+id/tv_me"            android:layout_width="match_parent"            android:layout_height="50dp"            android:layout_weight="1"            android:background="#999999"            android:gravity="center"            android:text="Me"            android:textColor="#222222" />    </LinearLayout></RelativeLayout>

        第二步：编写Activity，FragmentTestActivity.java

/** *  */package com.figo.study;import java.util.ArrayList;import android.graphics.Color;import android.os.Bundle;import android.support.v4.app.Fragment;import android.support.v4.app.FragmentActivity;import android.support.v4.app.FragmentManager;import android.support.v4.app.FragmentTransaction;import android.support.v4.view.ViewPager;import android.support.v4.view.ViewPager.OnPageChangeListener;import android.util.Log;import android.view.View;import android.view.Window;import android.widget.TextView;import com.figo.study.adapter.TabFragmentPagerAdapter;import com.figo.study.fragment.EarnFragment;import com.figo.study.fragment.ExampleFragment;import com.figo.study.fragment.MeFragment;import com.figo.study.fragment.WithdrawFragment;/** * @author figo *  */public class FragmentTestActivity extends FragmentActivity {private TextView tv_earn, tv_withdraw, tv_me;private ArrayList<Fragment> fragmentsList;private ViewPager vp;private int currIndex;@Overridepublic void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);requestWindowFeature(Window.FEATURE_NO_TITLE);setContentView(R.layout.activity_learn_fragment);initViews();initViewPager();}private void initViews() {tv_earn = (TextView) findViewById(R.id.tv_earn);tv_withdraw = (TextView) findViewById(R.id.tv_withdraw);tv_me = (TextView) findViewById(R.id.tv_me);tv_earn.setOnClickListener(new TabOnClickListener(0));tv_withdraw.setOnClickListener(new TabOnClickListener(1));tv_me.setOnClickListener(new TabOnClickListener(2));}private void initViewPager() {try {vp = (ViewPager) findViewById(R.id.viewPager);fragmentsList = new ArrayList<Fragment>();Bundle bundle = new Bundle();Fragment meFragment = MeFragment.newInstance(FragmentTestActivity.this, bundle);Fragment earnFragment = EarnFragment.newInstance(FragmentTestActivity.this, bundle);Fragment withdrawFragment = WithdrawFragment.newInstance(FragmentTestActivity.this, bundle);fragmentsList.add(earnFragment);fragmentsList.add(withdrawFragment);fragmentsList.add(meFragment);vp.setAdapter(new TabFragmentPagerAdapter(getSupportFragmentManager(), fragmentsList));vp.setCurrentItem(0);vp.setOnPageChangeListener(new MyOnPageChangeListener());} catch (Exception e) {Log.e("initViewPager", "initViewPager", e);}}public class TabOnClickListener implements View.OnClickListener {private int index = 0;public TabOnClickListener(int i) {index = i;}@Overridepublic void onClick(View v) {vp.setCurrentItem(index);}};public class MyOnPageChangeListener implements OnPageChangeListener {@Overridepublic void onPageSelected(int arg0) {switch (arg0) {case 0:tv_earn.setTextColor(Color.BLUE);tv_withdraw.setTextColor(Color.BLACK);tv_me.setTextColor(Color.BLACK);tv_earn.setBackgroundColor(0xFF996699);tv_withdraw.setBackgroundColor(0xFF999999);tv_me.setBackgroundColor(0xFF999999);break;case 1:tv_earn.setTextColor(Color.BLACK);tv_withdraw.setTextColor(Color.BLUE);tv_me.setTextColor(Color.BLACK);tv_earn.setBackgroundColor(0xFF999999);tv_withdraw.setBackgroundColor(0xFF996699);tv_me.setBackgroundColor(0xFF999999);break;case 2:tv_earn.setTextColor(Color.BLACK);tv_withdraw.setTextColor(Color.BLACK);tv_me.setTextColor(Color.BLUE);tv_earn.setBackgroundColor(0xFF999999);tv_withdraw.setBackgroundColor(0xFF999999);tv_me.setBackgroundColor(0xFF996699);break;}currIndex = arg0;}@Overridepublic void onPageScrolled(int arg0, float arg1, int arg2) {}@Overridepublic void onPageScrollStateChanged(int arg0) {}}}

        第三步：编写各个标签页的fragment

        1、MeFragment.java

/** *  */package com.figo.study.fragment;import com.figo.study.R;import com.figo.study.R.id;import com.figo.study.R.layout;import android.content.Context;import android.os.Bundle;import android.view.LayoutInflater;import android.view.View;import android.view.View.OnClickListener;import android.view.ViewGroup;import android.widget.Button;import android.widget.TextView;import android.widget.Toast;/** * @author figo * */public class MeFragment extends android.support.v4.app.Fragment {static Context mContext;Bundle meBundle;public static MeFragment newInstance(Context context,Bundle bundle) {mContext=context;MeFragment newFragment = new MeFragment();        newFragment.setArguments(bundle);        return newFragment;    }@Overridepublic void onCreate(Bundle savedInstanceState) {// TODO Auto-generated method stubsuper.onCreate(savedInstanceState);}@Overridepublic View onCreateView(LayoutInflater inflater, ViewGroup container,Bundle savedInstanceState) {// TODO Auto-generated method stub View view = inflater.inflate(R.layout.fragment_me, container, false);        TextView tv_me = (TextView) view.findViewById(R.id.tv_me);        tv_me.setText("天生我材必有用！");        Button btn_me = (Button) view.findViewById(R.id.btn_me);        btn_me.setOnClickListener(new OnClickListener() {@Overridepublic void onClick(View v) {// TODO Auto-generated method stub//getArguments()Toast.makeText(mContext, "earn more money!", Toast.LENGTH_LONG).show();}});        return view;}}

        2、EarnFragment.java

/** *  */package com.figo.study.fragment;import com.figo.study.R;import com.figo.study.R.id;import com.figo.study.R.layout;import android.content.Context;import android.os.Bundle;import android.view.LayoutInflater;import android.view.View;import android.view.View.OnClickListener;import android.view.ViewGroup;import android.widget.Button;import android.widget.TextView;import android.widget.Toast;/** * @author figo * */public class EarnFragment extends android.support.v4.app.Fragment {static Context mContext;Bundle meBundle;public static EarnFragment newInstance(Context context,Bundle bundle) {mContext=context;EarnFragment newFragment = new EarnFragment();        newFragment.setArguments(bundle);        return newFragment;    }@Overridepublic void onCreate(Bundle savedInstanceState) {// TODO Auto-generated method stubsuper.onCreate(savedInstanceState);}@Overridepublic View onCreateView(LayoutInflater inflater, ViewGroup container,Bundle savedInstanceState) {// TODO Auto-generated method stub View view = inflater.inflate(R.layout.fragment_earn, container, false);        TextView tv_me = (TextView) view.findViewById(R.id.tv_earn);        tv_me.setText("赚钱是上层建筑的基础！");        Button btn_earn = (Button) view.findViewById(R.id.btn_earn);        btn_earn.setOnClickListener(new OnClickListener() {@Overridepublic void onClick(View v) {// TODO Auto-generated method stub//getArguments()Toast.makeText(mContext, "earn more money!", Toast.LENGTH_LONG).show();}});        return view;}}

        3、WithdrawFragment .java

/** *  */package com.figo.study.fragment;import java.util.ArrayList;import java.util.List;import com.figo.study.R;import com.figo.study.R.id;import com.figo.study.R.layout;import com.figo.study.adapter.ViewPagerAdapter;import android.content.Context;import android.graphics.Color;import android.os.Bundle;import android.support.v4.view.ViewPager;import android.view.LayoutInflater;import android.view.View;import android.view.View.OnClickListener;import android.view.animation.TranslateAnimation;import android.view.ViewGroup;import android.widget.Button;import android.widget.TextView;import android.widget.Toast;/** * @author figo *  */public class WithdrawFragment extends android.support.v4.app.Fragment {static Context mContext;Bundle meBundle;private List<View> lists = new ArrayList<View>();private TextView tv_goods;private TextView tv_card;private TextView tv_lottery;int white = Color.WHITE;int blue = Color.BLUE;ViewPager viewPager;public static WithdrawFragment newInstance(Context context, Bundle bundle) {mContext = context;WithdrawFragment newFragment = new WithdrawFragment();newFragment.setArguments(bundle);return newFragment;}@Overridepublic void onCreate(Bundle savedInstanceState) {// TODO Auto-generated method stubsuper.onCreate(savedInstanceState);}@Overridepublic View onCreateView(LayoutInflater inflater, ViewGroup container,Bundle savedInstanceState) {// TODO Auto-generated method stubView view = inflater.inflate(R.layout.fragment_withdraw, container,false);initViewPager(view);// TextView tv_me = (TextView) view.findViewById(R.id.tv_withdraw);// tv_me.setText("人生要学会享受！");// Button btn_withdraw = (Button) view.findViewById(R.id.btn_withdraw);// btn_withdraw.setOnClickListener(new OnClickListener() {//// @Override// public void onClick(View v) {// // TODO Auto-generated method stub// // getArguments()// Toast.makeText(mContext, "earn more money!",// Toast.LENGTH_LONG).show();// }// });return view;}private void initViewPager(View view) {lists.add(getActivity().getLayoutInflater().inflate(R.layout.layout1,null));lists.add(getActivity().getLayoutInflater().inflate(R.layout.layout2,null));lists.add(getActivity().getLayoutInflater().inflate(R.layout.layout3,null));tv_goods = (TextView) view.findViewById(R.id.tv_goods);tv_card = (TextView) view.findViewById(R.id.tv_card);tv_lottery = (TextView) view.findViewById(R.id.tv_lottery);ViewPagerAdapter myAdapter = new ViewPagerAdapter(lists);viewPager = (ViewPager) view.findViewById(R.id.vpType);viewPager.setAdapter(myAdapter);viewPager.setOnPageChangeListener(new ViewPager.OnPageChangeListener() {@Overridepublic void onPageSelected(int arg0) { // 当滑动式，顶部的imageView是通过animation缓慢的滑动// TODO Auto-generated method stubswitch (arg0) {case 0:// textView1.setBackgroundColor(0x3A6A00);// textView2.setBackgroundColor(0x999999);// textView3.setBackgroundColor(0x999999);tv_goods.setBackgroundColor(0xFF996699);tv_card.setBackgroundColor(0xFF999999);tv_lottery.setBackgroundColor(0xFF999999);tv_goods.setTextColor(blue);tv_card.setTextColor(white);tv_lottery.setTextColor(white);break;case 1:tv_goods.setBackgroundColor(0xFF999999);tv_card.setBackgroundColor(0xFF996699);tv_lottery.setBackgroundColor(0xFF999999);tv_goods.setTextColor(white);tv_card.setTextColor(blue);tv_lottery.setTextColor(white);break;case 2:tv_goods.setBackgroundColor(0xFF999999);tv_card.setBackgroundColor(0xFF999999);tv_lottery.setBackgroundColor(0xFF996699);tv_goods.setTextColor(white);tv_card.setTextColor(white);tv_lottery.setTextColor(blue);}}@Overridepublic void onPageScrolled(int arg0, float arg1, int arg2) {// TODO Auto-generated method stub}@Overridepublic void onPageScrollStateChanged(int arg0) {// TODO Auto-generated method stub}});tv_goods.setOnClickListener(new View.OnClickListener() {@Overridepublic void onClick(View arg0) {// TODO Auto-generated method stubviewPager.setCurrentItem(0);}});tv_card.setOnClickListener(new View.OnClickListener() {@Overridepublic void onClick(View arg0) {// TODO Auto-generated method stubviewPager.setCurrentItem(1);}});tv_lottery.setOnClickListener(new View.OnClickListener() {@Overridepublic void onClick(View arg0) {// TODO Auto-generated method stubviewPager.setCurrentItem(2);}});}}