Android 使用Fragment，ViewPagerIndicator 制作csdn app主要框架

浏览数：22 / 时间：2015年06月11日

转载转载请注明出处：http://blog.csdn.net/lmj623565791/article/details/23513993

本来准备下载个CSDN的客户端放手机上，没事可以浏览浏览资讯，下载了官方的之后，发现并不能很好的使用。恰好搜到一个大神自己写的csdn的app，下载安装了一下，感觉很不错，也很流畅，基本满足了我们日常浏览的需求。

app效果图：

我会在博客中完整的介绍这个项目的制作，第一篇当然是整个项目的整体结构了。

效果图：

1、头部的布局文件，这个很简单：

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.zhy.csdndemo"
    android:versionCode="1"
    android:versionName="1.0" >


    <uses-sdk
        android:minSdkVersion="13"
        android:targetSdkVersion="17" />


    <application
        android:allowBackup="true"
        android:icon="@drawable/ic_launcher"
        android:label="@string/app_name"
        android:theme="@style/AppTheme" >
        <activity
            android:name="com.zhy.csdndemo.MainActivity"
            android:label="@string/app_name" 
            android:theme="@style/MyTheme">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />


                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
    </application>


</manifest>

就显示一个图标和标题。
2、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:background="#eee"
    android:orientation="vertical" >


    <include layout="@layout/main_head" />


    <com.viewpagerindicator.TabPageIndicator
        android:id="@+id/id_indicator"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:background="@color/transparentblue" >
    </com.viewpagerindicator.TabPageIndicator>


    <android.support.v4.view.ViewPager
        android:id="@+id/id_pager"
        android:layout_width="fill_parent"
        android:layout_height="0dp"
        android:layout_weight="1" />


</LinearLayout>

一个TabPageIndicator和一个ViewPager。
3、主Activity

package com.zhy.csdndemo;


import com.viewpagerindicator.TabPageIndicator;


import android.os.Bundle;
import android.support.v4.app.FragmentActivity;
import android.support.v4.app.FragmentPagerAdapter;
import android.support.v4.view.ViewPager;


public class MainActivity extends FragmentActivity
{
    private TabPageIndicator mIndicator ;
    private ViewPager mViewPager ;
    private FragmentPagerAdapter mAdapter ;


    @Override
    protected void onCreate(Bundle savedInstanceState)
    {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
    
        mIndicator = (TabPageIndicator) findViewById(R.id.id_indicator);
        mViewPager = (ViewPager) findViewById(R.id.id_pager);
        mAdapter = new TabAdapter(getSupportFragmentManager());
        mViewPager.setAdapter(mAdapter);
        mIndicator.setViewPager(mViewPager, 0);
        
        
        
    }
    
    


}

TabAdapter.java

package com.zhy.csdndemo;


import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentManager;
import android.support.v4.app.FragmentPagerAdapter;


public class TabAdapter extends FragmentPagerAdapter
{


    public static final String[] TITLES = new String[] { "业界", "移动", "研发", "程序员杂志", "云计算" };


    public TabAdapter(FragmentManager fm)
    {
        super(fm);
    }


    @Override
    public Fragment getItem(int arg0)
    {
        MainFragment fragment = new MainFragment(arg0);
        return fragment;
    }


    @Override
    public CharSequence getPageTitle(int position)
    {
        return TITLES[position % TITLES.length];
    }


    @Override
    public int getCount()
    {
        return TITLES.length;
    }


}

MainFragment.java

package com.zhy.csdndemo;


import android.annotation.SuppressLint;
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.TextView;


@SuppressLint("ValidFragment")
public class MainFragment extends Fragment
{


    private int newsType = 0;


    public MainFragment(int newsType)
    {
        this.newsType = newsType;
    }


    @Override
    public void onActivityCreated(Bundle savedInstanceState)
    {
        super.onActivityCreated(savedInstanceState);
    }


    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState)
    {
        View view = inflater.inflate(R.layout.tab_item_fragment_main, null);
        TextView tip = (TextView) view.findViewById(R.id.id_tip);
        tip.setText(TabAdapter.TITLES[newsType]);
        return view;
    }


}

4、在styles.xml中自定义Theme

<style name="MyTheme" parent="AppBaseTheme">
        <item name="vpiTabPageIndicatorStyle">@style/MyWidget.TabPageIndicator</item>
        <item name="android:windowBackground">@drawable/init_pic</item>
        <item name="android:windowNoTitle">true</item>  
        <item name="android:animationDuration">5000</item>
        <item name="android:windowContentOverlay">@null</item>  
    </style>
    
    <style name="MyWidget.TabPageIndicator" parent="Widget">
        <item name="android:gravity">center</item>
        <item name="android:background">@drawable/vpi__tab_indicator</item>
        <item name="android:paddingLeft">22dip</item>
        <item name="android:paddingRight">22dip</item>
        <item name="android:paddingTop">8dp</item>
        <item name="android:paddingBottom">8dp</item>
        <item name="android:textAppearance">@style/MyTextAppearance.TabPageIndicator</item>
        <item name="android:textSize">16sp</item>
        <item name="android:maxLines">1</item>
    </style>


    <style name="MyTextAppearance.TabPageIndicator" parent="Widget">
        <item name="android:textStyle">bold</item>
        <item name="android:textColor">@color/black</item>
    </style>

在AndroidManifest中注册使用：

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.zhy.csdndemo"
    android:versionCode="1"
    android:versionName="1.0" >


    <uses-sdk
        android:minSdkVersion="13"
        android:targetSdkVersion="17" />


    <application
        android:allowBackup="true"
        android:icon="@drawable/ic_launcher"
        android:label="@string/app_name"
        android:theme="@style/AppTheme" >
        <activity
            android:name="com.zhy.csdndemo.MainActivity"
            android:label="@string/app_name" 
            android:theme="@style/MyTheme">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />


                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
    </application>


</manifest>