標籤:android style blog http io color ar os 使用
轉載請註明出處:http://blog.csdn.net/yangyu20121224/article/details/9016223
在上一篇文章中,我們花了大量的篇幅來講解Fragment這個新引進類的使用,目的就是為了讓大家能夠牢牢的掌握它的使用方法,以便讀者在今後的開發中能夠熟練的使用它。
一、實現
二、項目工程結構
三、詳細代碼編寫
1、主tab布局介面,main_tab_layout:
<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="fill_parent" android:layout_height="fill_parent" android:orientation="vertical" > <FrameLayout android:id="@+id/realtabcontent" android:layout_width="fill_parent" android:layout_height="0dip" android:layout_weight="1" /> <android.support.v4.app.FragmentTabHost android:id="@android:id/tabhost" android:layout_width="fill_parent" android:layout_height="wrap_content" android:background="@drawable/maintab_toolbar_bg"> <FrameLayout android:id="@android:id/tabcontent" android:layout_width="0dp" android:layout_height="0dp" android:layout_weight="0" /> </android.support.v4.app.FragmentTabHost></LinearLayout>
2、Tab按鈕選項布局,tab_item_view.xml:
<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="wrap_content" android:layout_height="wrap_content" android:gravity="center" android:orientation="vertical" > <ImageView android:id="@+id/imageview" android:layout_width="wrap_content" android:layout_height="wrap_content" android:focusable="false" android:padding="3dp" android:src="@drawable/tab_home_btn"> </ImageView> <TextView android:id="@+id/textview" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="首頁" android:textSize="10sp" android:textColor="#ffffff"> </TextView></LinearLayout>
3、fragment布局介面,這裡只列出一個,fragment_1.xml:
<span style="font-size:12px;"><?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="fill_parent" android:layout_height="fill_parent" > <ImageView android:id="@+id/imageview" android:layout_width="fill_parent" android:layout_height="fill_parent" android:scaleType="fitCenter" android:src="@drawable/xianjian01" > </ImageView></LinearLayout></span>
4、Tab選項的自訂按鈕資源檔,列出其中一個按鈕,tab_home_btn:
<span style="font-size:12px;"><?xml version="1.0" encoding="utf-8"?><selector xmlns:android="http://schemas.android.com/apk/res/android"> <item android:drawable="@drawable/icon_home_sel" android:state_selected="true"/> <item android:drawable="@drawable/icon_home_nor"/></selector></span>
5、Tab選項按鈕背景資源檔,selector_tab_background.xml:
<span style="font-size:12px;"><?xml version="1.0" encoding="utf-8"?><selector xmlns:android="http://schemas.android.com/apk/res/android"> <item android:drawable="@drawable/home_btn_bg" android:state_pressed="true"/> <item android:drawable="@drawable/home_btn_bg" android:state_selected="true"/></selector></span>
6、主Activity類,MainTabActivity.java:
<span style="font-size:12px;">package com.yangyu.mycustomtab02;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.TabHost.TabSpec;import android.widget.TextView;/** * @author yangyu * 功能描述:自訂TabHost */public class MainTabActivity extends FragmentActivity{ //定義FragmentTabHost對象 private FragmentTabHost mTabHost; //定義一個布局 private LayoutInflater layoutInflater; //定義數組來存放Fragment介面 private Class fragmentArray[] = {FragmentPage1.class,FragmentPage2.class,FragmentPage3.class,FragmentPage4.class,FragmentPage5.class}; //定義數組來存放按鈕圖片 private int mImageViewArray[] = {R.drawable.tab_home_btn,R.drawable.tab_message_btn,R.drawable.tab_selfinfo_btn, R.drawable.tab_square_btn,R.drawable.tab_more_btn}; //Tab選項卡的文字 private String mTextviewArray[] = {"首頁", "訊息", "好友", "廣場", "更多"}; public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main_tab_layout); initView(); } /** * 初始化組件 */ private void initView(){ //執行個體化布局對象 layoutInflater = LayoutInflater.from(this); //執行個體化TabHost對象,得到TabHost mTabHost = (FragmentTabHost)findViewById(android.R.id.tabhost); mTabHost.setup(this, getSupportFragmentManager(), R.id.realtabcontent); //得到fragment的個數 int count = fragmentArray.length; for(int i = 0; i < count; i++){ //為每一個Tab按鈕設定表徵圖、文字和內容 TabSpec tabSpec = mTabHost.newTabSpec(mTextviewArray[i]).setIndicator(getTabItemView(i)); //將Tab按鈕添加進Tab選項卡中 mTabHost.addTab(tabSpec, fragmentArray[i], null); //設定Tab按鈕的背景 mTabHost.getTabWidget().getChildAt(i).setBackgroundResource(R.drawable.selector_tab_background); } } /** * 給Tab按鈕設定表徵圖和文字 */ private View getTabItemView(int index){ View view = layoutInflater.inflate(R.layout.tab_item_view, null); ImageView imageView = (ImageView) view.findViewById(R.id.imageview); imageView.setImageResource(mImageViewArray[index]); TextView textView = (TextView) view.findViewById(R.id.textview); textView.setText(mTextviewArray[index]); return view; }}</span>
7、Fragment頁面,FragmentPage1.java:
<span style="font-size:12px;">package com.yangyu.mycustomtab02;import android.os.Bundle;import android.support.v4.app.Fragment;import android.view.LayoutInflater;import android.view.View;import android.view.ViewGroup;public class FragmentPage1 extends Fragment{ @Override public View onCreateView(LayoutInflater inflater, ViewGroup container,Bundle savedInstanceState) { return inflater.inflate(R.layout.fragment_1, null); } }</span>
【Android UI設計與開發】第08期:底部功能表列(三)Fragment+FragmentTabHost實現仿新浪微博底部功能表列