android开发稳扎稳打之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;	@Override	public 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;		}		@Override		public void onClick(View v) {			vp.setCurrentItem(index);		}	};	public class MyOnPageChangeListener implements OnPageChangeListener {		@Override		public 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;		}		@Override		public void onPageScrolled(int arg0, float arg1, int arg2) {		}		@Override		public 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;    }	@Override	public void onCreate(Bundle savedInstanceState) {		// TODO Auto-generated method stub		super.onCreate(savedInstanceState);	}	@Override	public 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() {								@Override				public 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;    }	@Override	public void onCreate(Bundle savedInstanceState) {		// TODO Auto-generated method stub		super.onCreate(savedInstanceState);	}	@Override	public 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() {								@Override				public 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;	}	@Override	public void onCreate(Bundle savedInstanceState) {		// TODO Auto-generated method stub		super.onCreate(savedInstanceState);	}	@Override	public View onCreateView(LayoutInflater inflater, ViewGroup container,			Bundle savedInstanceState) {		// TODO Auto-generated method stub		View 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() {			@Override			public 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 stub				switch (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);				}			}			@Override			public void onPageScrolled(int arg0, float arg1, int arg2) {				// TODO Auto-generated method stub			}			@Override			public void onPageScrollStateChanged(int arg0) {				// TODO Auto-generated method stub			}		});		tv_goods.setOnClickListener(new View.OnClickListener() {			@Override			public void onClick(View arg0) {				// TODO Auto-generated method stub				viewPager.setCurrentItem(0);			}		});		tv_card.setOnClickListener(new View.OnClickListener() {			@Override			public void onClick(View arg0) {				// TODO Auto-generated method stub				viewPager.setCurrentItem(1);			}		});		tv_lottery.setOnClickListener(new View.OnClickListener() {			@Override			public void onClick(View arg0) {				// TODO Auto-generated method stub				viewPager.setCurrentItem(2);			}		});	}}