Fragment+RadioButton实现点击切换页面效果

MainActivity.java

package com.example.administrator.fragmentdemo;  2   3 import android.app.Activity;  4 import android.app.FragmentManager;  5 import android.app.FragmentTransaction;  6 import android.os.Bundle;  7 import android.view.View;  8 import android.widget.RadioButton;  9  10  11 public class MainActivity extends Activity implements View.OnClickListener { 12  13     private RadioButton image1; 14     private RadioButton image2; 15     private RadioButton image3; 16     private RadioButton image4; 17  18     private FirstFragment firstFragment; 19     private SecondFragment secondFragment; 20     private ThirdFragment thirdFragment; 21     private FourFragment fourFragment; 22  23     @Override 24     protected void onCreate(Bundle savedInstanceState) { 25         super.onCreate(savedInstanceState); 26         setContentView(R.layout.activity_main); 27  28         initViews(); 29         initEvents(); 30         //首先 我们先选定一个 31         select(0); 32     } 33     //初始化  各种个 View 34     private void initViews(){ 35         image1 = (RadioButton) findViewById(R.id.tab_image1); 36         image2 = (RadioButton) findViewById(R.id.tab_image2); 37         image3 = (RadioButton) findViewById(R.id.tab_image3); 38         image4 = (RadioButton) findViewById(R.id.tab_image4); 39     } 40     //初始化 监听事件 41     private void initEvents(){ 42         image1.setOnClickListener(this); 43         image2.setOnClickListener(this); 44         image3.setOnClickListener(this); 45         image4.setOnClickListener(this); 46     } 47     // 初始化 各种图片 48     private void initImageBack(){ 49         image1.setBackgroundResource(R.drawable.chatting_biaoqing_btn_normal); 50         image2.setBackgroundResource(R.drawable.lbs_icon_disable); 51         image3.setBackgroundResource(R.drawable.scan_book); 52         image4.setBackgroundResource(R.drawable.scan_word); 53     } 54     // 55     private void select(int i){ 56         FragmentManager fm = getFragmentManager();  //获得Fragment管理器 57         FragmentTransaction ft = fm.beginTransaction(); //开启一个事务 58  59         hidtFragment(ft);   //先隐藏 Fragment 60  61         switch (i){ 62             case 0: 63                 image1.setBackgroundResource(R.drawable.chatting_biaoqing_btn_enable); 64                 if (firstFragment == null){ 65                     firstFragment = new FirstFragment(); 66                     ft.add(R.id.fragment_container,firstFragment); 67                 }else{ 68                     ft.show(firstFragment); 69                 } 70                 break; 71             case 1: 72                 image2.setBackgroundResource(R.drawable.lbs_icon_enable); 73                 if (secondFragment == null){ 74                     secondFragment = new SecondFragment(); 75                     ft.add(R.id.fragment_container,secondFragment); 76                 }else { 77                     ft.show(secondFragment); 78                 } 79                 break; 80             case 2: 81                 image3.setBackgroundResource(R.drawable.scan_book_hl); 82                 if (thirdFragment == null){ 83                     thirdFragment = new ThirdFragment(); 84                     ft.add(R.id.fragment_container,thirdFragment); 85                 }else { 86                     ft.show(thirdFragment); 87                 } 88                 break; 89             case 3: 90                 image4.setBackgroundResource(R.drawable.scan_word_hl); 91                 if(fourFragment == null){ 92                     fourFragment = new FourFragment(); 93                     ft.add(R.id.fragment_container,fourFragment); 94                 }else { 95                     ft.show(fourFragment); 96                 } 97                 break; 98         } 99         ft.commit();   //提交事务100     }101     //隐藏所有Fragment102     private void hidtFragment(FragmentTransaction fragmentTransaction){103         if (firstFragment != null){104             fragmentTransaction.hide(firstFragment);105         }106         if (secondFragment != null){107             fragmentTransaction.hide(secondFragment);108         }109         if (thirdFragment != null){110             fragmentTransaction.hide(thirdFragment);111         }112         if (fourFragment != null){113             fragmentTransaction.hide(fourFragment);114         }115     }116     //重写监听117     @Override118     public void onClick(View v) {119 120         initImageBack(); //初始化 图片背景121 122         switch (v.getId()){123             case R.id.tab_image1:124                 select(0);125                 break;126             case R.id.tab_image2:127                 select(1);128                 break;129             case R.id.tab_image3:130                 select(2);131                 break;132             case R.id.tab_image4:133                 select(3);134                 break;135         }136     }137 }

主布局文件,在这里我分开写的，底部的导航栏有新建了一个xml文件，并在主布局文件中用include将他包含进来。

activity_main.xml

<LinearLayout    xmlns:android="http://schemas.android.com/apk/res/android"    xmlns:tools="http://schemas.android.com/tools"    android:layout_width="match_parent"    android:layout_height="match_parent"    android:orientation="vertical"    tools:context=".MainActivity">    <ImageView        android:layout_width="match_parent"        android:layout_height="40dp"        android:background="@drawable/friendactivity_comment_frame_pressed"/>    <FrameLayout        android:id="@+id/fragment_container"        android:layout_width="match_parent"        android:layout_height="0dp"        android:layout_weight="1">    </FrameLayout>    <include layout="@layout/activity_main_tab_view"/></LinearLayout>

底部导航栏的布局文件

<?xml version="1.0" encoding="utf-8"?><LinearLayout    xmlns:android="http://schemas.android.com/apk/res/android"    android:orientation="horizontal"    android:layout_width="match_parent"    android:layout_height="50dp"    android:layout_gravity="bottom"    android:background="@drawable/friendactivity_comment_frame_pressed">    <RadioGroup        android:layout_width="match_parent"        android:layout_height="match_parent"        android:orientation="horizontal">        <RadioButton            android:id="@+id/tab_image1"            android:layout_width="0dp"            android:layout_height="match_parent"            android:layout_weight="1"            android:button="@null"            android:background="@drawable/chatting_biaoqing_btn_normal"/>        <RadioButton            android:id="@+id/tab_image2"            android:layout_width="0dp"            android:layout_height="match_parent"            android:layout_weight="1"            android:button="@null"            android:background="@drawable/lbs_icon_disable"/>        <RadioButton            android:id="@+id/tab_image3"            android:layout_width="0dp"            android:layout_height="match_parent"            android:layout_weight="1"            android:button="@null"            android:background="@drawable/scan_book"/>        <RadioButton            android:id="@+id/tab_image4"            android:layout_width="0dp"            android:layout_height="match_parent"            android:layout_weight="1"            android:button="@null"            android:background="@drawable/scan_word"/>    </RadioGroup></LinearLayout>

四个fragment都一样，我就放一个代码，布局也很简单，就放了一个TextView

Fragment.java

package com.example.administrator.fragmentdemo;import android.app.Fragment;import android.os.Bundle;import android.view.LayoutInflater;import android.view.View;import android.view.ViewGroup;/** * Created by Administrator on 2015/9/3. */public class FirstFragment extends Fragment {    @Override    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {        return inflater.inflate(R.layout.first_fragment_view,container,false);    }}

该fragment的布局文件为:

<?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">    <TextView        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:text="This is frist fragment"/></LinearLayout>