使用FragmentTabhost代替Tabhost
使用FragmentTabhost代替Tabhost
现在Fragment使用越来越广了，虽然Fragment寄生在Activity下，但是它的出现对于开发者来说是一件非常幸运的事，使开发的效率更高效了，好了下面就说说 FragmentTabhost的使用，因为Tabhost已经不推荐使用了，现在一般都使用FragmentTabhost！我本身也个菜鸟，就是帮帮新手，因为Fragment是3.0才出现，为了避免3.0以下的使用不了，所以我们要用v4包来支持，不要倒错包哦！大神勿喷！
一：首先我们看看XML:
1.activity_main.xml
[html] view plaincopy
<EMBED id=ZeroClipboardMovie_1 name=ZeroClipboardMovie_1 type=application/x-shockwave-flash align=middle pluginspage=http://www.macromedia.com/go/getflashplayer height=18 width=18 src=http://static.blog.csdn.net/scripts/ZeroClipboard/ZeroClipboard.swf wmode="transparent" flashvars="id=1&width=18&height=18" allowfullscreen="false" allowscriptaccess="always" bgcolor="#ffffff" quality="best" menu="false" loop="false">
<?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/bg_tabhost_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_item_view.xml
[html] view plaincopy
<EMBED id=ZeroClipboardMovie_2 name=ZeroClipboardMovie_2 type=application/x-shockwave-flash align=middle pluginspage=http://www.macromedia.com/go/getflashplayer height=18 width=18 src=http://static.blog.csdn.net/scripts/ZeroClipboard/ZeroClipboard.swf wmode="transparent" flashvars="id=2&width=18&height=18" allowfullscreen="false" allowscriptaccess="always" bgcolor="#ffffff" quality="best" menu="false" loop="false">
<?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=""
android:textSize="10sp"
android:textColor="#ffffff">
</TextView>
</LinearLayout>
3.fragment1.xml 就贴一个Fragment XML吧!其他的几个都一样，只是颜色不一样，呵呵！
[html] view plaincopy
<EMBED id=ZeroClipboardMovie_3 name=ZeroClipboardMovie_3 type=application/x-shockwave-flash align=middle pluginspage=http://www.macromedia.com/go/getflashplayer height=18 width=18 src=http://static.blog.csdn.net/scripts/ZeroClipboard/ZeroClipboard.swf wmode="transparent" flashvars="id=3&width=18&height=18" allowfullscreen="false" allowscriptaccess="always" bgcolor="#ffffff" quality="best" menu="false" loop="false">
<?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:background="#FBB55D" >
</LinearLayout>
ok，XML先写完了，那我们看看代码吧！
4.MainActivity
[java] view plaincopy
<EMBED id=ZeroClipboardMovie_4 name=ZeroClipboardMovie_4 type=application/x-shockwave-flash align=middle pluginspage=http://www.macromedia.com/go/getflashplayer height=18 width=18 src=http://static.blog.csdn.net/scripts/ZeroClipboard/ZeroClipboard.swf wmode="transparent" flashvars="id=4&width=18&height=18" allowfullscreen="false" allowscriptaccess="always" bgcolor="#ffffff" quality="best" menu="false" loop="false">
package com.example.fragmenttabhost;
import android.os.Bundle;
import android.support.v4.app.Fragment;
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;
import com.example.fragment.Fragment1;
import com.example.fragment.Fragment2;
import com.example.fragment.Fragment3;
import com.example.fragment.Fragment4;
import com.example.fragment.Fragment5;
/**
*
* @author zqy
*
*/
public class MainActivity extends FragmentActivity {
/**
* FragmentTabhost
*/
private FragmentTabHost mTabHost;
/**
* 布局填充器
*
*/
private LayoutInflater mLayoutInflater;
/**
* Fragment数组界面
*
*/
private Class mFragmentArray[] = { Fragment1.class, Fragment2.class,
Fragment3.class, Fragment4.class, Fragment5.class };
/**
* 存放图片数组
*
*/
private int mImageArray[] = { 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 };
/**
* 选修卡文字
*
*/
private String mTextArray[] = { "首页", "消息", "好友", "搜索", "更多" };
/**
*
*
*/
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
initView();
}
/**
* 初始化组件
*/
private void initView() {
mLayoutInflater = LayoutInflater.from(this);
// 找到TabHost
mTabHost = (FragmentTabHost) findViewById(android.R.id.tabhost);
mTabHost.setup(this, getSupportFragmentManager(), R.id.realtabcontent);
// 得到fragment的个数
int count = mFragmentArray.length;
for (int i = 0; i < count; i++) {
// 给每个Tab按钮设置图标、文字和内容
TabSpec tabSpec = mTabHost.newTabSpec(mTextArray[i])
.setIndicator(getTabItemView(i));
// 将Tab按钮添加进Tab选项卡中
mTabHost.addTab(tabSpec, mFragmentArray[i], null);
// 设置Tab按钮的背景
mTabHost.getTabWidget().getChildAt(i)
.setBackgroundResource(R.drawable.selector_tab_background);
}
}
/**
*
* 给每个Tab按钮设置图标和文字
*/
private View getTabItemView(int index) {
View view = mLayoutInflater.inflate(R.layout.tab_item_view, null);
ImageView imageView = (ImageView) view.findViewById(R.id.imageview);
imageView.setImageResource(mImageArray[index]);
TextView textView = (TextView) view.findViewById(R.id.textview);
textView.setText(mTextArray[index]);
return view;
}
}
5.Fragment1.java Fragment其他几个都一样，指不过XML不一样！
[java] view plaincopy
<EMBED id=ZeroClipboardMovie_5 name=ZeroClipboardMovie_5 type=application/x-shockwave-flash align=middle pluginspage=http://www.macromedia.com/go/getflashplayer height=18 width=18 src=http://static.blog.csdn.net/scripts/ZeroClipboard/ZeroClipboard.swf wmode="transparent" flashvars="id=5&width=18&height=18" allowfullscreen="false" allowscriptaccess="always" bgcolor="#ffffff" quality="best" menu="false" loop="false">
package com.example.fragment;
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import com.example.fragmenttabhost.R;
public class Fragment1 extends Fragment{
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
return inflater.inflate(R.layout.fragment1, null);
}
}
OK 基本上写完了，让我们看看效果！
