Android 使用Fragment，ViewPagerIndicator 制作csdn app主要框架
DamarisZ02
8年前
来自： 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。
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 ; @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; } }
<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~