本文主要是介绍使用FragmentTabhost代替Tabhost,希望对大家解决编程问题提供一定的参考价值,需要的开发者们随着小编来一起学习吧!
转载。 https://blog.csdn.net/u011310942/article/details/24882979
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
- <?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>
- <?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>
- <?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>
4.MainActivity
- 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;
- }
- }
- 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!
哈哈,效果还算可以!好了,去吃饭了!
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