• Android实战简易教程-第二十六枪(基于ViewPager实现微信页面切换效果)


    1.头部布局文件top.xml:

    <?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="40dp"
        android:background="@drawable/title_bar"
        android:gravity="center"
        android:orientation="vertical" >
    
        <TextView
            android:id="@+id/title"
            android:layout_width="wrap_content"
            android:layout_height="30dp"
            android:layout_gravity="center"
            android:text="WeChat"
            android:textColor="#ffffffff"
            android:textSize="25dp" />
    
    </LinearLayout>

    2.底部布局文件bottom.xml:

    <?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="50dp"
        android:background="@drawable/bottom_bar"
        android:orientation="horizontal" >
    
        <LinearLayout
            android:id="@+id/ll_chat"
            android:layout_width="0dp"
            android:layout_height="fill_parent"
            android:layout_weight="1"
            android:gravity="center"
            android:orientation="vertical" >
    
            <ImageButton
                android:id="@+id/ibtn_chat"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:background="#0000"
                android:clickable="false"
                android:src="@drawable/tab_weixin_pressed" />
    
            <TextView
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:text="聊天"
                android:textColor="#ffffffff" />
        </LinearLayout>
    
        <LinearLayout
            android:id="@+id/ll_pengyouquan"
            android:layout_width="0dp"
            android:layout_height="fill_parent"
            android:layout_weight="1"
            android:gravity="center"
            android:orientation="vertical" >
    
            <ImageButton
                android:id="@+id/ibtn_pengyouquan"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:background="#0000"
                android:clickable="false"
                android:src="@drawable/tab_find_frd_normal" />
    
            <TextView
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:text="朋友圈"
                android:textColor="#ffffffff" />
        </LinearLayout>
    
        <LinearLayout
            android:id="@+id/ll_tongxunlu"
            android:layout_width="0dp"
            android:layout_height="fill_parent"
            android:layout_weight="1"
            android:gravity="center"
            android:orientation="vertical" >
    
            <ImageButton
                android:id="@+id/ibtn_tongxunlu"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:background="#0000"
                android:clickable="false"
                android:src="@drawable/tab_address_normal" />
    
            <TextView
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:text="好友"
                android:textColor="#ffffffff" />
        </LinearLayout>
    
        <LinearLayout
            android:id="@+id/ll_set"
            android:layout_width="0dp"
            android:layout_height="fill_parent"
            android:layout_weight="1"
            android:gravity="center"
            android:orientation="vertical" >
    
            <ImageButton
                android:id="@+id/ibtn_set"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:background="#0000"
                android:clickable="false"
                android:src="@drawable/tab_settings_normal" />
    
            <TextView
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:text="设置"
                android:textColor="#ffffffff" />
        </LinearLayout>
    
    </LinearLayout>

    3.主布局文件:

    <LinearLayout 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:orientation="vertical" >
    
        <include layout="@layout/top" />
    
        <android.support.v4.view.ViewPager
            android:id="@+id/viewpager"
            android:layout_width="match_parent"
            android:layout_height="0dp"
            android:layout_weight="1" >
        </android.support.v4.view.ViewPager>
    
        <include layout="@layout/bottom" />
    
    </LinearLayout>

    4.四个ViewPager的内容页布局

    tab01.xml:

    <?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:gravity="center"
        android:orientation="vertical" >
    
        <TextView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_gravity="center"
            android:text="聊天页"
            android:textSize="30sp" >
        </TextView>
    
    </LinearLayout>
    tab02.xml:
    <?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:gravity="center"
        android:orientation="vertical" >
    
        <TextView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_gravity="center"
            android:text="朋友圈"
            android:textSize="30sp" >
        </TextView>
    
    </LinearLayout>

    tab03.xml:

    <?

    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:gravity="center" android:orientation="vertical" > <TextView android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_gravity="center" android:text="联系人页面" android:textSize="30sp" > </TextView> </LinearLayout>

    tab04.xml:

    <?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:gravity="center"
        android:orientation="vertical" >
    
        <TextView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_gravity="center"
            android:text="设置页面"
            android:textSize="30sp" >
        </TextView>
    
    </LinearLayout>

    5.MainActivity.java:

    package com.example.tabtest;
    
    import java.util.ArrayList;
    import java.util.List;
    
    import android.app.Activity;
    import android.os.Bundle;
    import android.support.v4.view.PagerAdapter;
    import android.support.v4.view.ViewPager;
    import android.support.v4.view.ViewPager.OnPageChangeListener;
    import android.view.LayoutInflater;
    import android.view.View;
    import android.view.View.OnClickListener;
    import android.view.ViewGroup;
    import android.view.Window;
    import android.widget.ImageButton;
    import android.widget.LinearLayout;
    
    public class MainActivity extends Activity implements OnClickListener {
    	private ViewPager mViewPager;
    	private PagerAdapter pagerAdapter;
    	private List<View> mViews = new ArrayList<View>();
    	private LinearLayout mLLChat;
    	private LinearLayout mLLPengyouquan;
    	private LinearLayout mLLAddress;
    	private LinearLayout mLLSet;
    	private ImageButton mImageButtonChat;
    	private ImageButton mImageButtonPengyouquan;
    	private ImageButton mImageButtonAddress;
    	private ImageButton mImageButtonSet;
    
    	@Override
    	protected void onCreate(Bundle savedInstanceState) {
    		super.onCreate(savedInstanceState);
    		requestWindowFeature(Window.FEATURE_NO_TITLE);
    		setContentView(R.layout.activity_main);
    		initView();// 初始化控件
    		initEvent();// 点击事件
    	}
    
    	private void initEvent() {
    		mLLChat.setOnClickListener(this);
    		mLLPengyouquan.setOnClickListener(this);
    		mLLAddress.setOnClickListener(this);
    		mLLSet.setOnClickListener(this);
    		mViewPager.setOnPageChangeListener(new OnPageChangeListener() {//ViewPager滑动切换监听
    			
    			@Override
    			public void onPageSelected(int arg0) {
    				int currentItem=mViewPager.getCurrentItem();
    				resetImag();
    				switch (currentItem) {
    				case 0:
    					mImageButtonChat.setImageResource(R.drawable.tab_weixin_pressed);
    					break;
    				case 1:
    					mImageButtonPengyouquan.setImageResource(R.drawable.tab_find_frd_pressed);
    					break;
    				case 2:
    					mImageButtonAddress.setImageResource(R.drawable.tab_address_pressed);
    					break;
    				case 3:
    					mImageButtonSet.setImageResource(R.drawable.tab_settings_pressed);
    					break;
    
    				default:
    					break;
    				}
    				
    			}
    			
    			@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
    				
    			}
    		});
    	}
    
    	private void initView() {
    		/**
    		 * 初始化全部控件
    		 */
    		mViewPager = (ViewPager) findViewById(R.id.viewpager);
    		mLLChat = (LinearLayout) findViewById(R.id.ll_chat);
    		mLLPengyouquan = (LinearLayout) findViewById(R.id.ll_pengyouquan);
    		mLLAddress = (LinearLayout) findViewById(R.id.ll_tongxunlu);
    		mLLSet = (LinearLayout) findViewById(R.id.ll_set);
    		mImageButtonChat = (ImageButton) findViewById(R.id.ibtn_chat);
    		mImageButtonPengyouquan = (ImageButton) findViewById(R.id.ibtn_pengyouquan);
    		mImageButtonAddress = (ImageButton) findViewById(R.id.ibtn_tongxunlu);
    		mImageButtonSet = (ImageButton) findViewById(R.id.ibtn_set);
    		/**
    		 * 获取mViews
    		 */
    		LayoutInflater layoutInflater = LayoutInflater.from(this);
    		View tab01 = layoutInflater.inflate(R.layout.tab01, null);
    		View tab02 = layoutInflater.inflate(R.layout.tab02, null);
    		View tab03 = layoutInflater.inflate(R.layout.tab03, null);
    		View tab04 = layoutInflater.inflate(R.layout.tab04, null);
    		mViews.add(tab01);
    		mViews.add(tab02);
    		mViews.add(tab03);
    		mViews.add(tab04);
    		// ViewPager适配器
    		pagerAdapter = new PagerAdapter() {
    
    			/**
    			 * 摧毁
    			 */
    			@Override
    			public void destroyItem(ViewGroup container, int position,
    					Object object) {
    				container.removeView(mViews.get(position));
    			}
    
    			/**
    			 * 初始化
    			 */
    
    			@Override
    			public Object instantiateItem(ViewGroup container, int position) {
    				View view = mViews.get(position);
    				container.addView(view);
    				return view;
    			}
    
    			@Override
    			public boolean isViewFromObject(View arg0, Object arg1) {
    				return arg0 == arg1;
    			}
    
    			@Override
    			public int getCount() {
    				return mViews.size();
    			}
    		};
    
    		mViewPager.setAdapter(pagerAdapter);
    
    	}
    
    	@Override
    	public void onClick(View v) {
    		resetImag();
    		switch (v.getId()) {
    		case R.id.ll_chat:
    			mViewPager.setCurrentItem(0);
    			mImageButtonChat.setImageResource(R.drawable.tab_weixin_pressed);
    			break;
    		case R.id.ll_pengyouquan:
    			mViewPager.setCurrentItem(1);
    			mImageButtonPengyouquan.setImageResource(R.drawable.tab_find_frd_pressed);
    
    			break;
    		case R.id.ll_tongxunlu:
    			mViewPager.setCurrentItem(2);
    			mImageButtonAddress.setImageResource(R.drawable.tab_address_pressed);
    
    			break;
    		case R.id.ll_set:
    			mViewPager.setCurrentItem(3);
    			mImageButtonSet.setImageResource(R.drawable.tab_settings_pressed);
    
    			break;
    
    		default:
    			break;
    		}
    	}
    /**
     * 将全部图片设置成未选中状态
     */
    	private void resetImag() {
    		mImageButtonChat.setImageResource(R.drawable.tab_weixin_normal);
    		mImageButtonPengyouquan.setImageResource(R.drawable.tab_find_frd_normal);
    		mImageButtonAddress.setImageResource(R.drawable.tab_address_normal);
    		mImageButtonSet.setImageResource(R.drawable.tab_settings_normal);
    	}
    
    }
    

    6.执行实例:


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    源代码下载


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  • 原文地址:https://www.cnblogs.com/liguangsunls/p/6940865.html
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