Android之Tab类总结

本文主要包括以下Tab类实现方式

FragmentTabHost+Fragment实现
传统的ViewPager实现
FragmentManager+Fragment实现
ViewPager+FragmentPagerAdapter实现
TabPageIndicator+ViewPager+FragmentPagerAdapter

FragmentTabHost+Fragment实现

布局文件

<?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:orientation="vertical">  <android.support.v4.app.FragmentTabHost  android:id="@android:id/tabhost"  android:layout_width="match_parent"  android:layout_height="wrap_content">  <LinearLayout
            android:layout_width="match_parent"android:layout_height="match_parent"android:gravity="center"android:orientation="vertical" ><FrameLayout
                android:id="@android:id/tabcontent"android:layout_width="match_parent"android:layout_height="0dp"android:layout_weight="1" ></FrameLayout><TabWidget
                android:id="@android:id/tabs"android:layout_width="match_parent"android:layout_height="60dip" /></LinearLayout> </android.support.v4.app.FragmentTabHost>  </LinearLayout>

MainActivity

package com.darna.wmxfx;import android.os.Bundle;
import android.support.v4.app.FragmentActivity;
import android.support.v4.app.FragmentTabHost;
import android.view.LayoutInflater;
import android.view.View;
import android.widget.ImageView;
import android.widget.RelativeLayout;
import android.widget.TabHost.OnTabChangeListener;
import android.widget.TextView;import com.darna.wmxfx.fragment.Frg_Cart;
import com.darna.wmxfx.fragment.Frg_Index;
import com.darna.wmxfx.fragment.Frg_UserCenter;public class MainActivity extends FragmentActivity {private FragmentTabHost mTabHost = null;private int iTabIndex = 0;private int[][] iTab = new int[][] { { R.drawable.indexunused, R.drawable.cartunused, R.drawable.usercenterunused },{ R.drawable.indexused, R.drawable.cartused, R.drawable.usercenterused } };@Overrideprotected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.activity_main);initViews();}private void initViews(){String[] strTab = getResources().getStringArray(R.array.bottom_tab);RelativeLayout[] relativeLayout = new RelativeLayout[strTab.length];for(int i = 0; i < strTab.length; i++){if (i == 0) {relativeLayout[i] = (RelativeLayout) LayoutInflater.from(this).inflate(R.layout.tab_bottom, null);relativeLayout[i].findViewById(R.id.iv_bottom_tab).setBackgroundResource(iTab[1][i]);TextView tView =  (TextView) relativeLayout[i].findViewById(R.id.tv_bottom_tab);tView.setText(strTab[i]);tView.setTextColor(getResources().getColor(R.color.textused));}else {relativeLayout[i] = (RelativeLayout) LayoutInflater.from(this).inflate(R.layout.tab_bottom, null);relativeLayout[i].findViewById(R.id.iv_bottom_tab).setBackgroundResource(iTab[0][i]);TextView t =  (TextView) relativeLayout[i].findViewById(R.id.tv_bottom_tab);t.setText(strTab[i]);t.setTextColor(getResources().getColor(R.color.textunused));}}mTabHost = (FragmentTabHost) findViewById(android.R.id.tabhost);  mTabHost.setup(this, getSupportFragmentManager(), android.R.id.tabcontent);mTabHost.addTab(mTabHost.newTabSpec(Config.KEY_INDEX)  .setIndicator(relativeLayout[0]), Frg_Index.class, null); mTabHost.addTab(mTabHost.newTabSpec(Config.KEY_CART)  .setIndicator(relativeLayout[1]), Frg_Cart.class, null);mTabHost.addTab(mTabHost.newTabSpec(Config.KEY_USERCENTER)  .setIndicator(relativeLayout[2]), Frg_UserCenter.class, null);mTabHost.setOnTabChangedListener(new OnTabChangeListener() {@Overridepublic void onTabChanged(String tabId) {// TODO Auto-generated method stubView v = mTabHost.getTabWidget().getChildAt(iTabIndex);((ImageView) v.findViewById(R.id.iv_bottom_tab)).setBackgroundResource(iTab[0][iTabIndex]);((TextView) v.findViewById(R.id.tv_bottom_tab)).setTextColor(getResources().getColor(R.color.textunused));v = mTabHost.getCurrentTabView();iTabIndex = mTabHost.getCurrentTab();((ImageView) v.findViewById(R.id.iv_bottom_tab)).setBackgroundResource(iTab[1][iTabIndex]);((TextView) v.findViewById(R.id.tv_bottom_tab)).setTextColor(getResources().getColor(R.color.textused));}});}
}