Fragment+FragmentTabHost实现仿新浪微博底部菜单栏
PS:这是转载CSDN作者yangyu20121224的文章,真的非常不错.它主要讲述如何通过Fragment碎片实现点击TabHost切换页面.可惜作者很长时间没有更新了,他写的那系列文章都很实用.以后在做Android布局时会用到该篇文章内容,所以转载作为在线笔记.希望对大家也有所帮助吧!
转载源地址:http://blog.csdn.net/yangyu20121224/article/details/9016223
在上一篇文章中,我们花了大量的篇幅来讲解Fragment这个新引进类的使用,目的就是为了让大家能够牢牢的掌握它的使用方法,以便读者在今后的开发中能够熟练的使用它。
一、实现效果图
二、项目工程结构
三、详细代码编写
1、主tab布局界面,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按钮选项布局,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="首页"
-
android:textSize="10sp"
-
android:textColor="#ffffff">
-
</TextView>
-
-
</LinearLayout>
3、fragment布局界面,这里只列出一个,fragment_1.xml:
-
<?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>
4、Tab选项的自定义按钮资源文件,列出其中一个按钮,tab_home_btn:
-
<?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>
5、Tab选项按钮背景资源文件,selector_tab_background.xml:
-
<?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>
6、主Activity类,MainTabActivity.java:
-
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:自定义TabHost
-
*/
-
public class MainTabActivity extends FragmentActivity{
-
//定义FragmentTabHost对象
-
private FragmentTabHost mTabHost;
-
-
//定义一个布局
-
private LayoutInflater layoutInflater;
-
-
//定义数组来存放Fragment界面
-
private Class fragmentArray[] = {FragmentPage1.class,FragmentPage2.class,
-
FragmentPage3.class,FragmentPage4.class,FragmentPage5.class};
-
-
//定义数组来存放按钮图片
-
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选项卡的文字
-
private String mTextviewArray[] = {"首页","消息","好友","广场","更多"};
-
-
public void onCreate(Bundle savedInstanceState) {
-
super.onCreate(savedInstanceState);
-
setContentView(R.layout.main_tab_layout);
-
-
initView();
-
}
-
-
/**
-
* 初始化组件
-
*/
-
private void initView(){
-
//实例化布局对象
-
layoutInflater = LayoutInflater.from(this);
-
-
//实例化TabHost对象,得到TabHost
-
mTabHost = (FragmentTabHost)findViewById(android.R.id.tabhost);
-
mTabHost.setup(this, getSupportFragmentManager(), R.id.realtabcontent);
-
-
//得到fragment的个数
-
int count = fragmentArray.length;
-
-
for(int i = 0; i < count; i++){
-
//为每一个Tab按钮设置图标、文字和内容
-
TabSpec tabSpec = mTabHost.newTabSpec(mTextviewArray[i]).setIndicator(getTabItemView(i));
-
//将Tab按钮添加进Tab选项卡中
-
mTabHost.addTab(tabSpec, fragmentArray[i], null);
-
//设置Tab按钮的背景
-
mTabHost.getTabWidget().getChildAt(i).setBackgroundResource(
-
R.drawable.selector_tab_background);
-
}
-
}
-
-
/**
-
* 给Tab按钮设置图标和文字
-
*/
-
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;
-
}
-
}
7、Fragment页面,FragmentPage1.java:
-
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);
-
}
-
}
源码下载地址
PS:该文章主要是在做Android随手拍时转载的,下面也是一些相关优秀的文章。
[Android UI设计与开发]第09期:底部菜单栏(四)Fragment+PopupWindow仿QQ空间最新版底部菜单栏
android底部菜单栏demo
Android开发技巧——实现底部图标文字的导航栏(已更新)
Android提高十八篇之自定义Menu(TabMenu)