Android 使用Fragment，ViewPagerIndicator 开发APP项目的主框架

来源：互联网发布：黑龙江大学网络教育编辑：程序博客网时间：2024/05/05 08:24

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"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"    android:layout_width="match_parent"    android:layout_height="wrap_content"    android:background="@color/light_blue"    android:orientation="horizontal" >    <ImageView        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:layout_gravity="center_vertical"        android:layout_marginLeft="8dp"        android:layout_marginRight="4dp"        android:src="@drawable/biz_navigation_tab_news_pressed" />    <ImageView        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:layout_gravity="center_vertical"        android:layout_marginLeft="4dp"        android:layout_marginRight="4dp"        android:src="@drawable/base_action_bar_back_divider" />    <TextView        android:id="@+id/headTV"        android:layout_width="0dp"        android:layout_height="wrap_content"        android:layout_gravity="center_vertical"        android:layout_marginLeft="4dp"        android:layout_weight="1"        android:text="CSDN资讯"        android:textColor="@color/white"        android:textSize="21sp"        android:textStyle="bold" >    </TextView></LinearLayout>

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 ;@Overrideprotected 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);}@Overridepublic Fragment getItem(int arg0){MainFragment fragment = new MainFragment(arg0);return fragment;}@Overridepublic CharSequence getPageTitle(int position){return TITLES[position % TITLES.length];}@Overridepublic 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;}@Overridepublic void onActivityCreated(Bundle savedInstanceState){super.onActivityCreated(savedInstanceState);}@Overridepublic 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>

总体还是很简单的，但是效果很不错啊，现在不是流行Fragment么~好了，如果这篇文章对你有帮助，赞一个~

源码点击此处下载

转载自：http://blog.csdn.net/lmj623565791/article/details/23513993

0 0