【风马一族_Android】通过菜单的点击，跳转到不同界面

---恢复内容开始---

布局的代码：activity_main.xml

 <?xml version="1.0" encoding="utf-8"?>
 <RelativeLayout 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"
     tools:context="com.sowsceo.sms.MainActivity">

     <TabHost
         android:id="@android:id/tabhost"
         android:layout_width="match_parent"
         android:layout_height="match_parent">

         <LinearLayout
             android:layout_width="match_parent"
             android:layout_height="match_parent"
             android:orientation="vertical">

             <TabWidget
                 android:id="@android:id/tabs"
                 android:layout_width="match_parent"
                 android:layout_height="wrap_content"></TabWidget>

             <FrameLayout
                 android:id="@android:id/tabcontent"
                 android:layout_width="match_parent"
                 android:layout_height="match_parent"></FrameLayout>
         </LinearLayout>
     </TabHost>
 </RelativeLayout>

逻辑代码 ：MainActivity.java　　

 import android.app.TabActivity;
 import android.content.Intent;
 import android.support.v7.app.AppCompatActivity;
 import android.os.Bundle;
 import android.view.View;
 import android.widget.TabHost;

 public class MainActivity extends TabActivity {

     private TabHost mTabHos;

     @Override
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
         setContentView(R.layout.activity_main);

         initTabHost();
     }

     /**
      * 初始化tabHost
      */
     private void initTabHost() {
         mTabHos = (TabHost) findViewById(android.R.id.tabhost);

         addTabSpec("conversation","会话",R.drawable.tab_conversation,new Intent(this,ConversationUI.class));
         addTabSpec("folder","文件夹",R.drawable.tab_folder,new Intent(this,FolderUI.class));
         addTabSpec("group","群组",R.drawable.tab_group,new Intent(this,GroupUI.class));

     }

     /**
      * 添加一个页签
      * @param tag  标记
      * @param label 标题
      * @param icon 图标
      * @param intent 指向的activity
      */
     private void addTabSpec(String tag,String label,int icon,Intent intent){
         TabHost.TabSpec newTabSpec = mTabHos.newTabSpec(tag);

         newTabSpec.setIndicator(label,getResources().getDrawable(icon));
         //设置页签的标题与图标

         newTabSpec.setContent(intent);
         //设置页签指向的显示内容问activity

         mTabHos.addTab(newTabSpec);
         //添加页签
     }

 }

------------------------------

三个菜单的布局与代码

------------------------------

会话布局：activity_conversation_ui.xml

 <?xml version="1.0" encoding="utf-8"?>
 <RelativeLayout 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:paddingBottom="@dimen/activity_vertical_margin"
     android:paddingLeft="@dimen/activity_horizontal_margin"
     android:paddingRight="@dimen/activity_horizontal_margin"
     android:paddingTop="@dimen/activity_vertical_margin"
     tools:context="com.sowsceo.sms.ConversationUI">

     <TextView
         android:layout_width="match_parent"
         android:layout_height="match_parent"
         android:text="会话"
         android:textSize="50sp"/>
 </RelativeLayout>

逻辑代码：ConversationUI.java

 import android.app.Activity;
 import android.support.v7.app.AppCompatActivity;
 import android.os.Bundle;

 /**
  * 会话
  */
 public class ConversationUI extends Activity {

     @Override
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
         setContentView(R.layout.activity_conversation_ui);
     }
 }

-------------------------------------------

布局代码：activity_folder_ui.xml

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout 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"
    tools:context="com.sowsceo.sms.FolderUI">

    <TextView
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:text="文件夹"
        android:textSize="50sp" />
</RelativeLayout>

逻辑代码：FolderUI.java

 import android.app.Activity;
 import android.support.v7.app.AppCompatActivity;
 import android.os.Bundle;

 /**
  *
  * 创建者：风马一族
  * 时间： 2016/8/9 19:06
  * 说明：文件夹
  */

 public class FolderUI extends Activity {

     @Override
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
         setContentView(R.layout.activity_folder_ui);
     }
 }

----------------------------------

布局代码：activity_group_ui.xml

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout 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:paddingBottom="@dimen/activity_vertical_margin"
android:paddingLeft="@dimen/activity_horizontal_margin"
android:paddingRight="@dimen/activity_horizontal_margin"
android:paddingTop="@dimen/activity_vertical_margin"
tools:context="com.sowsceo.sms.FolderUI">

    <TextView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:text="文件夹"
android:textSize="50sp" />
</RelativeLayout>

---恢复内容结束---