乐学成语——完整实现

最新推荐文章于 2016-06-15 20:40:31 发布

jingetianxia

最新推荐文章于 2016-06-15 20:40:31 发布

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分类专栏： Android

本文链接：https://blog.youkuaiyun.com/jingetianxia/article/details/51606725

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1.程序列表

2.MainActivity.java

package cn.edu.bztc.happyidiom.activity;

import cn.edu.bztc.happyidiom.R;
import android.app.TabActivity;
import android.content.Intent;
import android.os.Bundle;
import android.view.Menu;
import android.view.Window;
import android.widget.TabHost;
@SuppressWarnings("deprecation")

public class MainActivity extends TabActivity {
	private TabHost tabHost;
	protected void onCreate(Bundle savedInstanceState){
		super.onCreate(savedInstanceState);
		requestWindowFeature(Window.FEATURE_NO_TITLE);//取消标题栏
		setContentView(R.layout.activity_main);
		tabHost=getTabHost();
		addTab("study",R.string.title_study,R.drawable.study,StudyActivity.class);
		addTab("search",R.string.title_search,R.drawable.search,StudyActivity.class);
		addTab("game",R.string.title_game,R.drawable.game,StudyActivity.class);
		addTab("save",R.string.title_save,R.drawable.save,StudyActivity.class);
		addTab("help",R.string.title_help,R.drawable.help,StudyActivity.class);	
	}
	@SuppressWarnings("rawtypes")
	private void addTab(String tag,int title_introduction,int title_icon,Class ActivityClass){
		tabHost.addTab(tabHost.newTabSpec(tag)
				.setIndicator(getString(title_introduction), 
						getResources().getDrawable(title_icon))
						.setContent(new Intent(this,ActivityClass)));	
	}
	public boolean onCreateOptionsMenu(Menu menu){
		//inflate the menu;this adds items to the action bar if it is present.
		getMenuInflater().inflate(R.menu.main, menu);
		return true;
	}
}

3.StudyActivity.java

package cn.edu.bztc.happyidiom.activity;

import java.util.ArrayList;
import java.util.List;

import cn.edu.bztc.happyidiom.R;
import cn.edu.bztc.happyidiom.adapter.CategoryAdapter;
import cn.edu.bztc.happyidiom.entity.Category;

import android.app.Activity;
import android.content.Intent;
import android.content.res.Resources;
import android.os.Bundle;
import android.view.Menu;
import android.view.View;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.ListView;
import android.widget.Toast;

public class StudyActivity extends Activity {
	private List<Category> categoryList;
	private String[] category_names;
	private int[] category_images;
	
	@Override
	protected void onCreate(Bundle savedInstanceState) {
		// TODO Auto-generated method stub
		super.onCreate(savedInstanceState);
		setContentView(R.layout.activity_study);
		
		initCategories();//初始化类别
		CategoryAdapter adapter = new CategoryAdapter(this, R.layout.category_item, categoryList);
		ListView listView=(ListView)findViewById(R.id.lvCategories);
		listView.setAdapter(adapter);
		
		listView.setOnItemClickListener(new OnItemClickListener() {

			@Override
			public void onItemClick(AdapterView<?> adapterView, View view, int position,
					long id) {
				// TODO Auto-generated method stub
				switch(position){
				case 0:
					Intent intent=new Intent(StudyActivity.this,StudyAnimalActivity.class);
					startActivity(intent);
					break;
					default:
						break;
				}
				//Category category=categoryList.get(position);
				//Toast.makeText(StudyActivity.this,category.getName(),Toast.LENGTH_LONG).show();
			}
			
		});
	}
	private void initCategories(){
		categoryList=new ArrayList<Category>();
		Resources resources=getResources();
		category_names=resources.getStringArray(R.array.category);
		category_images=new int[]{R.drawable.category_animal,R.drawable.category_nature,
				R.drawable.category_human,R.drawable.category_season,R.drawable.category_number,
				R.drawable.category_fable,R.drawable.category_other};
		for(int i=0;i<category_names.length;i++){
			categoryList.add(new Category(category_names[i], category_images[i]));
		}
		}
	@Override
	public boolean onCreateOptionsMenu(Menu menu) {
		// TODO Auto-generated method stub
		getMenuInflater().inflate(R.menu.study, menu);
		return true;
	}
	}

4.StudyAnimalAcitivity.java

package cn.edu.bztc.happyidiom.activity;

import java.util.List;

import cn.edu.bztc.happyidiom.R;
import cn.edu.bztc.happyidiom.adapter.AnimalAdapter;
import cn.edu.bztc.happyidiom.dao.AnimalDao;
import cn.edu.bztc.happyidiom.entity.Animal;
import cn.edu.bztc.happyidiom.util.DialogUtil;

import android.app.Activity;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.ListView;
import android.widget.Toast;

public class StudyAnimalActivity extends Activity{
	private List<Animal> animalList;
	private AnimalDao animalDao;
	private ListView lvAnimalList;
	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.activity_animal);
		initAnimals();
		lvAnimalList=(ListView)findViewById(R.id.lvAnimalList);
		AnimalAdapter animalAdapter=new AnimalAdapter(this,R.layout.animal_item,animalList);
		lvAnimalList.setAdapter(animalAdapter);
		lvAnimalList.setOnItemClickListener(new OnItemClickListener() {
			@Override
			public void onItemClick(AdapterView<?> adapterView, View view, int position, long id) {
				Animal animal=animalList.get(position);
				/*定义对话框中提示语句*/
				String result=animal.getName()+"\n"+
				animal.getPronounce()+
				"\n【解释】："+animal.getExplain()+
				"\n【近义词】："+animal.getHomoionym()+
				"\n【反义词】："+animal.getAntonym()+
				"\n【来源】："+animal.getDerivation()+
				"\n【示例】："+animal.getExamples();
				DialogUtil.showDialog(result,StudyAnimalActivity.this);
			}
		});
	}
	/*获取成语数据*/
	private void initAnimals() {
		animalDao=AnimalDao.getInstance(this);
		animalList=animalDao.getAllAnimals();
	}
}

5.StudyAnimalActivity.java

package cn.edu.bztc.happyidiom.activity;

import java.util.List;

import cn.edu.bztc.happyidiom.R;
import cn.edu.bztc.happyidiom.adapter.AnimalAdapter;
import cn.edu.bztc.happyidiom.dao.AnimalDao;
import cn.edu.bztc.happyidiom.entity.Animal;
import cn.edu.bztc.happyidiom.util.DialogUtil;

import android.app.Activity;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.ListView;
import android.widget.Toast;

public class StudyAnimalActivity extends Activity{
	private List<Animal> animalList;
	private AnimalDao animalDao;
	private ListView lvAnimalList;
	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.activity_animal);
		initAnimals();
		lvAnimalList=(ListView)findViewById(R.id.lvAnimalList);
		AnimalAdapter animalAdapter=new AnimalAdapter(this,R.layout.animal_item,animalList);
		lvAnimalList.setAdapter(animalAdapter);
		lvAnimalList.setOnItemClickListener(new OnItemClickListener() {
			@Override
			public void onItemClick(AdapterView<?> adapterView, View view, int position, long id) {
				Animal animal=animalList.get(position);
				/*定义对话框中提示语句*/
				String result=animal.getName()+"\n"+
				animal.getPronounce()+
				"\n【解释】："+animal.getExplain()+
				"\n【近义词】："+animal.getHomoionym()+
				"\n【反义词】："+animal.getAntonym()+
				"\n【来源】："+animal.getDerivation()+
				"\n【示例】："+animal.getExamples();
				DialogUtil.showDialog(result,StudyAnimalActivity.this);
			}
		});
	}
	/*获取成语数据*/
	private void initAnimals() {
		animalDao=AnimalDao.getInstance(this);
		animalList=animalDao.getAllAnimals();
	}
}

6.AnimalAdapter.java

package cn.edu.bztc.happyidiom.adapter;

import java.util.List;

import cn.edu.bztc.happyidiom.entity.Animal;
import cn.edu.bztc.happyidiom.R;
import android.content.Context;
import android.view.LayoutInflater;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.ViewGroup;
import android.webkit.WebView.FindListener;
import android.widget.ArrayAdapter;
import android.widget.ImageButton;
import android.widget.TextView;
import android.widget.Toast;

public class AnimalAdapter extends ArrayAdapter<Animal>{

	private int resourceId;
	private Context context;
	public AnimalAdapter(Context context, int resource,List<Animal> objects) {
		super(context,resource, objects);
		this.context=context;
		resourceId=resource;
	}
	@Override
	public View getView(int position, View convertView, ViewGroup parent) {
		final Animal animal =getItem(position);//获取当前项的Animal实例
		View view;
		ViewHolder viewHolder;
		if(convertView==null){//判断是否第一次运行，如果是则进入，并将上下文环境保存进convertView
			view=LayoutInflater.from(getContext()).inflate(resourceId,null);
			viewHolder=new ViewHolder();
			viewHolder.tvName=(TextView)view.findViewById(R.id.tvName);
			viewHolder.btnSave=(ImageButton)view.findViewById(R.id.btnSave);
			
			viewHolder.btnSave.setFocusable(false);
			viewHolder.btnSave.setFocusableInTouchMode(false);	
			
			viewHolder.btnSave.setOnClickListener(new OnClickListener() {
				@Override
				public void onClick(View arg0) {
					Toast.makeText(context,"你要收藏"+animal.getName()+"吗",Toast.LENGTH_SHORT).show();
				}
			});
			view.setTag(viewHolder);
		}else{//如果不是第一次运行，convertView不为空，直接取出赋值给view
			view=convertView;
			viewHolder=(ViewHolder) view.getTag();
		}
		viewHolder.tvName.setText(animal.getName());//显示成语
		return view;
	}
	
	class ViewHolder{
		TextView tvName;
		ImageButton btnSave;
	}
}

7.CategoryAdapter.java

package cn.edu.bztc.happyidiom.adapter;

import java.util.List;

import cn.edu.bztc.happyidiom.entity.Category;
import cn.edu.bztc.happyidiom.R;
import android.content.Context;
import android.view.LayoutInflater;
import android.view.View;
import android.webkit.WebView.FindListener;
import android.widget.ArrayAdapter;
import android.widget.ImageView;
import android.widget.TextView;

public class CategoryAdapter extends ArrayAdapter<Category>{

	private int resourceId;
	public CategoryAdapter(Context context, int resource,
			List<Category> categoryList) {
		super(context,resource, categoryList);
		resourceId=resource;
	}
	public View getView(int position, android.view.View convertView, android.view.ViewGroup parent) {
		Category category=getItem(position);//获取当前项的Category实例
		View view;
		ViewHolder viewHolder;
		if(convertView==null){
			view=LayoutInflater.from(getContext()).inflate(resourceId,null);
			viewHolder=new ViewHolder();
			viewHolder.categoryImage=(ImageView)view.findViewById(cn.edu.bztc.happyidiom.R.id.category_image);
			viewHolder.categoryName=(TextView)view.findViewById(cn.edu.bztc.happyidiom.R.id.category_name);
			view.setTag(viewHolder);	
		}else{
			view=convertView;
			viewHolder=(ViewHolder) view.getTag();
		}
		viewHolder.categoryImage.setImageResource(category.getImageId());
		viewHolder.categoryName.setText(category.getName());
		return view;
	}
	class ViewHolder{
		ImageView categoryImage;
		TextView categoryName;
	}
}

8.AnimalDao.java

package cn.edu.bztc.happyidiom.dao;

import java.util.ArrayList;
import java.util.List;

import cn.edu.bztc.happyidiom.db.DBOpenHelper;
import cn.edu.bztc.happyidiom.entity.Animal;
import android.content.Context;
import android.database.Cursor;
import android.database.sqlite.SQLiteDatabase;

public class AnimalDao {
	private static AnimalDao animaiDao;
	private SQLiteDatabase db;
	/*将构造方法私有化*/
	private AnimalDao(Context context){
		DBOpenHelper dbHelper=new DBOpenHelper(context);
		db=dbHelper.openDatabase();
	}
	/*获取AnimalDao的实例*/
	public synchronized static AnimalDao getInstance(Context context){
		if(animaiDao==null){
			animaiDao=new AnimalDao(context);
		}
		return animaiDao;
	}
	/*从数据库读取所有的动物类成语*/
	public List<Animal> getAllAnimals(){
		List<Animal> list=new ArrayList<Animal>();
		Cursor cursor=db.query("animal",null,null,null,null,null,null);
		if(cursor.moveToNext()){
			do{
				Animal animal=new Animal();
				animal.setId(cursor.getInt(cursor.getColumnIndex("_id")));
				animal.setName(cursor.getString(cursor.getColumnIndex("name")));
				animal.setPronounce(cursor.getString(cursor.getColumnIndex("pronounce")));
				animal.setAntonym(cursor.getString(cursor.getColumnIndex("antonym")));
				animal.setHomoionym(cursor.getString(cursor.getColumnIndex("homoionym")));
				animal.setDerivation(cursor.getString(cursor.getColumnIndex("derivation")));
				animal.setExamples(cursor.getString(cursor.getColumnIndex("examples")));
				animal.setExplain(cursor.getString(cursor.getColumnIndex("explain")));
				list.add(animal);
			}while(cursor.moveToNext());
		}
		return list;
	}
}

9.DBOpenHelper.java

package cn.edu.bztc.happyidiom.db;

import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import android.content.Context;
import android.database.sqlite.SQLiteDatabase;
import android.os.Environment;
import android.util.Log;

/*实现将数据库文件从raw目录拷贝到手机里存放数据库的位置*/
public class DBOpenHelper {
	private final int BUFFER_SIZE=400000;//缓冲区大小
	public static final String DB_NAME="idioms.db";//保存的数据库文件名
	public static final String PACKAGE_NAME="cn.edu.bztc.happyidiom";//应用的包名
	public static final String DB_PATH="/data"+Environment.getDataDirectory().getAbsolutePath()+"/"+PACKAGE_NAME+"/databases";//在手机里存放数据库的位置
	private Context context;
	public DBOpenHelper(Context context){
		this.context=context;
	}
	public SQLiteDatabase openDatabase(){
		try {
			File myDataPath=new File(DB_PATH);
			if(!myDataPath.exists()){
				myDataPath.mkdirs();//如果没有这个目录则创建
			}
			String dbfile=myDataPath+"/"+DB_NAME;
			if(!(new File(dbfile).exists())){//判断数据库文件是否存在，如果不存在则执行导入，否则直接打开数据库
				InputStream is=context.getResources().openRawResource(cn.edu.bztc.happyidiom.R.raw.idioms);
				FileOutputStream fos=new FileOutputStream(dbfile);
				byte[] buffer=new byte[BUFFER_SIZE];
				int count=0;
				while((count=is.read(buffer))>0){
					fos.write(buffer,0,count);
				}
				fos.close();
				is.close();
			}
			SQLiteDatabase db=SQLiteDatabase.openOrCreateDatabase(dbfile,null);
			return db;
		} catch (FileNotFoundException e) {
			Log.e("MainActivity","File not found");
			e.printStackTrace();
		}catch (IOException e) {
			Log.e("MainActivity","IO exception");
			e.printStackTrace();
		}
		return null;
	}
}

10.Animal.java

package cn.edu.bztc.happyidiom.entity;

public class Animal {
	private int id;
	private String name;//成语名称
	private String pronounce;//成语发音
	private String explain;//成语解释
	private String antonym;//反义词
	private String homoionym;//同义词
	private String derivation;//源自
	private String examples;//例子
	public int getId() {
		return id;
	}
	public void setId(int id) {
		this.id = id;
	}
	public String getName() {
		return name;
	}
	public void setName(String name) {
		this.name = name;
	}
	public String getPronounce() {
		return pronounce;
	}
	public void setPronounce(String pronounce) {
		this.pronounce = pronounce;
	}
	public String getExplain() {
		return explain;
	}
	public void setExplain(String explain) {
		this.explain = explain;
	}
	public String getAntonym() {
		return antonym;
	}
	public void setAntonym(String antonym) {
		this.antonym = antonym;
	}
	public String getHomoionym() {
		return homoionym;
	}
	public void setHomoionym(String homoionym) {
		this.homoionym = homoionym;
	}
	public String getDerivation() {
		return derivation;
	}
	public void setDerivation(String derivation) {
		this.derivation = derivation;
	}
	public String getExamples() {
		return examples;
	}
	public void setExamples(String examples) {
		this.examples = examples;
	}
	
}

11.Category.java

package cn.edu.bztc.happyidiom.entity;

public class Category {
	private String name;
	private int imageId;
	public Category(String name, int imageId) {
		super();
		this.name = name;
		this.imageId = imageId;
	}
	public String getName() {
		return name;
	}
	public int getImageId() {
		return imageId;
	}
}

12.AnimalDaoTest.java

package cn.edu.bztc.happyidiom.test;

import java.util.List;

import cn.edu.bztc.happyidiom.dao.AnimalDao;
import cn.edu.bztc.happyidiom.entity.Animal;
import android.test.AndroidTestCase;

public class AnimalDaoTest extends AndroidTestCase{
	public void testGetAllAnimals(){
		AnimalDao animalDao=AnimalDao.getInstance(getContext());
		List<Animal> animals=animalDao.getAllAnimals();
		System.out.println(animals.size());
		for(Animal animal:animals){
			System.out.println(animal.getName());
		}
	}
}

13.DBOpenHelperTest.java

package cn.edu.bztc.happyidiom.test;

import cn.edu.bztc.happyidiom.db.DBOpenHelper;
import android.test.AndroidTestCase;

public class DBOpenHelperTest extends AndroidTestCase{
	public void testDBCopy(){
		DBOpenHelper dbOpenHelper=new DBOpenHelper(getContext());
		dbOpenHelper.openDatabase();
	}
}

14.DialogUtil.java

package cn.edu.bztc.happyidiom.util;

import cn.edu.bztc.happyidiom.R;
import android.app.AlertDialog;
import android.content.Context;
import android.content.DialogInterface;
import android.view.LayoutInflater;
import android.view.View;
import android.widget.TextView;

public class DialogUtil {
	public static void showDialog(String result,Context context){
		AlertDialog.Builder builder=new AlertDialog.Builder(context);
		LayoutInflater layoutInflater=LayoutInflater.from(context);
		View view=layoutInflater.inflate(R.layout.dialog_info, null);
		builder.setView(view);
		TextView tvIdiomInfo=(TextView) view.findViewById(R.id.tvIdiomInfo);	
		tvIdiomInfo.setText(result);
		builder.setPositiveButton("确定", new DialogInterface.OnClickListener() {			
			
			public void onClick(DialogInterface dialog, int which) {
				// TODO Auto-generated method stub
				dialog.dismiss();
			}
		});
		builder.create().show();
	}
	

}

15.animal_layout_listview.xml

<?xml version="1.0" encoding="utf-8"?>
<layoutAnimation xmlns:android="http://schemas.android.com/apk/res/android"
    android:animation="@anim/anim_listview"
    android:animationOrder="random"
    android:delay="0.2">
</layoutAnimation>

16.animal_listview.xml

<?xml version="1.0" encoding="utf-8"?>
<alpha xmlns:android="http://schemas.android.com/apk/res/android"
    android:duration="1000" 
    android:fromAlpha="0.0"
    android:toAlpha="1.0">   
</alpha>

17.activity_animal.xml

<?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:background="@drawable/bg_animal"
    android:orientation="vertical" >
    <ListView 
        android:id="@+id/lvAnimalList"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layoutAnimation="@anim/anim_layout_listview"
        android:listSelector="#00000000"
        ></ListView>    

</LinearLayout>

18.activity_main.xml

<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=".MainActivity" >
    <TabHost
        android:id="@android:id/tabhost"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:layout_alignParentLeft="true"
        android:layout_alignParentTop="true">
        <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">
                <LinearLayout 
                    android:id="@+id/tab1"
                    android:orientation="vertical"
                    android:layout_width="match_parent"
                    android:layout_height="match_parent">
                </LinearLayout>
                <LinearLayout 
                    android:id="@+id/tab2"
                    android:orientation="vertical"
                    android:layout_width="match_parent"
                    android:layout_height="match_parent">
                </LinearLayout>
                <LinearLayout 
                    android:id="@+id/tab3"
                    android:orientation="vertical"
                    android:layout_width="match_parent"
                    android:layout_height="match_parent">
                </LinearLayout>
            </FrameLayout>
        </LinearLayout>  
        </TabHost>
</RelativeLayout>

19.activity_study.xml

<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:background="@drawable/bg_ling"
    tools:context=".StudyActivity" >

    <ListView
        android:id="@+id/lvCategories"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:listSelector="#00000000"
        android:layoutAnimation="@anim/anim_layout_listview"
        android:layout_alignParentLeft="true"
        android:layout_alignParentTop="true" >
    </ListView>

</RelativeLayout>

20.animal_item.xml

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent" 
    android:padding="10dp">
    <TextView 
        android:id="@+id/tvName"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_alignParentLeft="true"
        android:layout_alignParentTop="true"
        android:gravity="center"
        android:text="助人为乐"
        android:textAppearance="?android:attr/textAppearanceLarge"/>
    <ImageButton
        android:id="@+id/btnSave"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:background="@null"
        android:layout_alignParentRight="true"
        android:layout_alignTop="@+id/tvName"
        android:src="@drawable/btnsave"/>   
</RelativeLayout>

21.category_item.xml

<?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:padding="10dp"
    android:orientation="horizontal" >
    <ImageView 
        android:id="@+id/category_image"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"   
        android:src="@drawable/category_animal"/>
    <TextView 
        android:id="@+id/category_name"
        android:layout_width="wrap_content"
        android:text="@string/animal"
        android:layout_height="wrap_content"
        android:gravity="center"
        android:textAppearance="?android:attr/textAppearanceLarge"/>
</LinearLayout>

22.dialog_info.xml

<?xml version="1.0" encoding="utf-8"?>
<ScrollView xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent" >

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:background="@drawable/bg_ling"
        android:orientation="vertical" >

        <TextView
            android:id="@+id/tvIdiomInfo"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:text="Medium Text"
            android:textAppearance="?android:attr/textAppearanceMedium" />
    </LinearLayout>

</ScrollView>

23.strings.xml

<?xml version="1.0" encoding="utf-8"?>
<resources>

    <string name="app_name">happyidiom</string>
    <string name="action_settings">Settings</string>
    <string name="title_study">学习</string>
    <string name="title_search">搜搜</string>
    <string name="title_game">游戏</string>
    <string name="title_save">收藏</string>
    <string name="title_help">帮助</string>
    <string name="animal">动物类</string>

    <string-array name="category">
        <item>动物类</item>
        <item>自然类</item>
        <item>人物类</item>
        <item>季节类</item>
        <item>数字类</item>
        <item>寓言类</item>
        <item>其它类</item>
    </string-array>

    <string name="title_activity_study_animal">StudyAnimalActivity</string>
    <string name="hello_world">Hello world!</string>
    <string name="title_activity_study">StudyActivity</string>
    <string name="title_activity_main">MainActivity</string>

</resources>

24.AndroidManifest.xml

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="cn.edu.bztc.happyidiom"
    android:versionCode="1"
    android:versionName="1.0" >

    <uses-sdk
        android:minSdkVersion="14"
        android:targetSdkVersion="17" />

    <application
        android:allowBackup="true"
        android:icon="@drawable/logo"
        android:label="@string/app_name"
        android:theme="@android:style/Theme.NoTitleBar" >
        <uses-library android:name="android.test.runner" /> 

        <activity
            android:name="cn.edu.bztc.happyidiom.activity.MainActivity"
            android:label="@string/title_activity_main">
            <intent-filter>              
              <action android:name="android.intent.action.MAIN" />               
                <category android:name="android.intent.category.LAUNCHER" /> 
            </intent-filter>
        </activity>
         <activity
            android:name="cn.edu.bztc.happyidiom.activity.StudyActivity"
            android:label="@string/title_activity_study" >
            
        </activity>
        <activity
            android:name="cn.edu.bztc.happyidiom.activity.StudyAnimalActivity"
            android:label="@string/title_activity_study_animal" >
        </activity> 
        
     </application>
    <instrumentation
        android:name="android.test.InstrumentationTestRunner"
        android:targetPackage="cn.edu.bztc.happyidiom" >
    </instrumentation>
</manifest>