连接有道网页仿写有道词典
2015-07-02 14:54
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此代码是由本地数据库版直接改成导入网页有道词典,并有下拉页面进行自动提示,但是关于最后有道接口实在不会写
,所以代码只能运行一半,有会的小伙伴们可以一起交流交流呀~如果只是想要本地数据库支持,只需略改动一下即可。(近几天上传完整版的代码)
1.MainActivity.java
2.WordDao.java
3.DBhelper.java
4.Word.java
5.DBhelperTest.java
7.list_item.xml
,所以代码只能运行一半,有会的小伙伴们可以一起交流交流呀~如果只是想要本地数据库支持,只需略改动一下即可。(近几天上传完整版的代码)
1.MainActivity.java
package com.example.happydictionary; import android.app.Activity; import android.os.Bundle; import android.view.View; import android.view.View.OnClickListener; import android.webkit.WebView; import android.widget.ArrayAdapter; import android.widget.AutoCompleteTextView; import android.widget.Button; import android.widget.EditText; import android.widget.TextView; import android.widget.Toast; import com.example.happydictionary.dao.WordDao; public class MainActivity extends Activity { private WordDao wordDao; private EditText etWord; private TextView tvResult; // protected void onCreate1(Bundle savedInstanceState) { // super.onCreate(savedInstanceState); // setContentView(R.layout.activity_main); // // initViews(); // } @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); SetView(); } // private void initViews() { // // TODO Auto-generated method stub // // } private Button btnSearch; // private EditText editText; private WebView reswebView; private WebView wvSearchResult; private void SetView() { btnSearch = (Button) findViewById(R.id.btnSearch); // etWord = (EditText) findViewById(R.id.etWord); wvSearchResult = (WebView) findViewById(R.id.wvSearchResult); /** * 原来的editText换成了AutoCompleteTextView */ String[] countries = new String[] { "Afghanistan", "Albania", "Algeria", "American Samoa", "Andorra" };// 这里只举例说明,数据较少 AutoCompleteTextView autoCompleteTextView = (AutoCompleteTextView) findViewById(R.id.etWord);// 找到相应的控件 ArrayAdapter<String> adapter = new ArrayAdapter<String>(this, R.layout.list_item, countries);// 配置Adaptor autoCompleteTextView.setAdapter(adapter); btnSearch.setOnClickListener(new OnClickListener() { public void onClick(View v) { String strUri = etWord.getText().toString(); strUri = strUri.trim(); if (strUri.length() == 0) { Toast.makeText(getApplicationContext(), "请输入查询字符", 1) .show(); } else { String strURL = "http://dict.youdao.com/m/search?keyfrom=dict.mindex&q=" + strUri; //这个地方抛出空指针异常,没办法,不知道这个有道接口格式 reswebView.loadUrl(strURL); } } }); } }
2.WordDao.java
package com.example.happydictionary.dao; import android.content.Context; import android.database.Cursor; import android.database.sqlite.SQLiteDatabase; import com.example.happydictionary.db.DBHelper; public class WordDao { private DBHelper dbHelper; private SQLiteDatabase sqLiteDatabase; public WordDao(Context context){ dbHelper=new DBHelper(context); } public String getChinese(String english){ sqLiteDatabase=dbHelper.openDatabase(); String sql="select chinese from t_words where english=?"; Cursor cursor=sqLiteDatabase.rawQuery(sql, new String[]{english}); String chinese="查无该词"; if(cursor.moveToFirst()){ chinese=cursor.getString(cursor.getColumnIndex("chinese")); } return chinese; } }
3.DBhelper.java
package com.example.happydictionary.db; import java.io.File; import java.io.FileNotFoundException; import java.io.FileOutputStream; import java.io.IOException; import java.io.InputStream; import com.example.happydictionary.R; import com.example.happydictionary.R.raw; 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 * * @author cabbage */ public class DBHelper { private final int BUFFER_SIZE = 400000; public static final String DB_NAME = "idiom.db"; // 保存的数据库文件名 public static final String PACKAGE_NAME = "com.example.happydictionary";// 应用的包名 public static final String DB_PATH = "/data" + Environment.getDataDirectory().getAbsolutePath() + "/" + PACKAGE_NAME + "/databases"; /*// SDCard 定义数据库的存放路径 private final String DATABASE_PATH = android.os.Environment .getExternalStorageDirectory().getAbsolutePath() + "/dictionary";*/ private Context context; public DBHelper(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,若不存在则执行导入,否则直接打开数据库 InputStream is = context.getResources().openRawResource( R.raw.dictionary); // 欲导入的数据库 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("Database", "File not found"); e.printStackTrace(); } catch (IOException e) { Log.e("Database", "IO exception"); e.printStackTrace(); } return null; } }
4.Word.java
package com.example.happydictionary.entity; public class Word { private String english; private String chinese; public String getEnglish() { return english; } public void setEnglish(String english) { this.english = english; } public String getChinese() { return chinese; } public void setChinese(String chinese) { this.chinese = chinese; } }
5.DBhelperTest.java
package com.example.happydictionary.test; import com.example.happydictionary.db.DBHelper; import android.test.AndroidTestCase; public class DBHelperTest extends AndroidTestCase { public void testCreateDB(){ DBHelper dbHelper=new DBHelper(getContext()); dbHelper.openDatabase(); } }6.Activity_mian.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/mainbg" 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=".MainActivity" > <!-- <EditText android:id="@+id/etWord" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_alignParentLeft="true" android:layout_alignParentTop="true" android:layout_marginTop="31dp" android:background="@android:drawable/edit_text" android:ems="10" android:hint="@string/searchHint" android:singleLine="true" android:textColor="#552006" android:textColorHint="#782f10" > --> <AutoCompleteTextView android:completionThreshold="1" android:id="@+id/etWord" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_alignParentLeft="true" android:layout_alignParentTop="true" android:layout_marginTop="31dp" android:background="@android:drawable/edit_text" android:ems="10" android:hint="@string/searchHint" android:singleLine="true" android:textColor="#552006" android:textColorHint="#782f10"/> <requestFocus /> <Button android:id="@+id/btnSearch" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_alignBaseline="@+id/etWord" android:layout_alignBottom="@+id/etWord" android:layout_marginLeft="16dp" android:layout_toRightOf="@+id/etWord" android:background="@drawable/ibsearchword" android:onClick="searchWord" android:text="@string/serachWord" /> <WebView android:id="@+id/wvSearchResult" android:layout_width="match_parent" android:layout_height="match_parent" android:layout_alignLeft="@+id/etWord" android:layout_below="@+id/etWord" android:layout_marginTop="22dp" android:background="@drawable/bg_roundcorner" android:textAppearance="?android:attr/textAppearanceMedium" android:textSize="25sp" /> <TextView android:id="@+id/tvSearchResult" android:layout_width="match_parent" android:layout_height="match_parent" android:layout_alignLeft="@+id/etWord" android:layout_below="@+id/etWord" android:layout_marginTop="22dp" android:textSize="25sp" android:background="@drawable/bg_roundcorner" android:textAppearance="?android:attr/textAppearanceMedium" /> </RelativeLayout>
7.list_item.xml
<?xml version="1.0" encoding="utf-8"?> <TextView xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="fill_parent" android:layout_height="fill_parent" android:background="#ffffff" android:padding="10dp" android:textSize="16sp" android:textColor="#000000"> </TextView>8.strings.xml
<?xml version="1.0" encoding="utf-8"?> <resources> <string name="app_name">电子词典</string> <string name="action_settings">Settings</string> <string name="hello_world">Hello world!</string> <string name="searchHint">请输入您要查询的单词</string> <string name="serachWord">查询</string> </resources>
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