毕业设计android电子词典，先实现的一个小小的demo。
所谓的毕业设计就是用最短的时间学习一门语言，做出一个小的project。
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">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="40dp"
android:orientation="horizontal" >
<TextView
android:id="@+id/tvDict"
android:layout_width="0dp"
android:layout_height="40dp"
android:layout_weight="1"
android:text="@string/tv_dict"
/>
<Spinner
android:id="@+id/sp"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_weight="2"
/>
</LinearLayout>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="60dp"
android:orientation="horizontal" >
<EditText
android:id="@+id/etInput"
android:layout_width="0dp"
android:layout_height="60dp"
android:layout_weight="3"
android:text=""
android:hint=""/>
<Button
android:id="@+id/btnSearch"
android:layout_width="0dp"
android:layout_height="60dp"
android:layout_weight="1"
android:text="@string/btn_search"
/>
<Button
android:id="@+id/btnClear"
android:layout_width="0dp"
android:layout_height="60dp"
android:layout_weight="1"
android:text="@string/btn_clear"
/>
</LinearLayout>
<WebView
android:id="@+id/wvShow"
android:layout_height="0dp"
android:layout_width="fill_parent"
android:layout_weight="4"
android:focusable="false"
/>
</LinearLayout>
JsonString.java
package com.example.webviewtest;
import java.io.BufferedReader;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.Reader;
import java.net.HttpURLConnection;
import java.net.URL;
public class JsonString {
private String json;
JsonString(){
}
public void setStrJson(String json) {
this.json = json;
}
public String getStrJson() {
return json;
}
public void setJsonString(String word)throws Exception{
String urlPath = "http://fanyi.youdao.com/openapi.do?keyfrom=neverland&key=969918857&type=data&doctype=json&version=1.1&q=";
urlPath += word;
System.out.println(urlPath);
URL url = new URL(urlPath);
HttpURLConnection connection = (HttpURLConnection) url.openConnection();
connection.connect();
InputStream inputStream = connection.getInputStream();
Reader reader = new InputStreamReader(inputStream, "UTF-8");
BufferedReader bufferedReader = new BufferedReader(reader);
String str = null;
StringBuffer stringBuffer = new StringBuffer();
while((str = bufferedReader.readLine())!= null){
stringBuffer.append(str);
}
reader.close();
connection.disconnect();
json = stringBuffer.toString();
}
}
HtmlString.java
package com.example.webviewtest;
import java.io.BufferedReader;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.Reader;
import java.net.HttpURLConnection;
import java.net.URL;
public class HtmlString {
private String webString;
HtmlString(){
}
public void setwebString(String webString) {
this.webString = webString;
}
public String getwebString() {
return webString;
}
public void setwebString(String word, String dict)throws Exception{
String urlPath = "http://m.youdao.com/singledict?le=eng&dict=";
urlPath = urlPath + dict + "&q=" + word;
//System.out.println(urlPath);
URL url = new URL(urlPath);
HttpURLConnection connection = (HttpURLConnection) url.openConnection();
connection.connect();
InputStream inputStream = connection.getInputStream();
Reader reader = new InputStreamReader(inputStream, "UTF-8");
BufferedReader bufferedReader = new BufferedReader(reader);
String str = null;
StringBuffer stringBuffer = new StringBuffer();
while((str = bufferedReader.readLine())!= null){
stringBuffer.append(str);
}
reader.close();
connection.disconnect();
webString = stringBuffer.toString();
}
}
MainActivity.java
package com.example.webviewtest;
import android.support.v4.app.FragmentActivity;
import android.os.Bundle;
import android.view.KeyEvent;
import android.view.View;
import android.view.View.OnKeyListener;
import android.webkit.WebView;
import android.webkit.WebViewClient;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemSelectedListener;
import android.widget.ArrayAdapter;
import android.widget.Button;
import android.widget.EditText;
import android.widget.Spinner;
import android.widget.Toast;
import android.view.View.OnClickListener;
import android.view.inputmethod.InputMethodManager;
import org.json.JSONObject;
import org.json.JSONArray;
public class MainActivity extends FragmentActivity {
private Button btnSrarch;
private Button btnClear;
private EditText etInput;
private WebView wvShow;
InputMethodManager imm;
private Spinner spinner;
private String dictName;
private ArrayAdapter<String> adapter;
private static final String[] dict = { "基本释义", "柯林斯英汉双解大辞典", "21世纪大英汉词典",
"英英释义", "专业释义", "网络释义", "同根词", "同近义词", "双语例句", "原声例句", "权威例句", "百科" };
private static final String[]dicts = {"ec", "collins", "ec21", "ee",
"special", "web_trans", "rel_word", "syno", "blng_sents_part",
"media_sents_part", "auth_sents_part", "baike"};
private static final String linkCss = "<link rel="stylesheet" href="file:///android_asset/style.css" type="text/css">";
private static final String body = "<html><head>" + linkCss + "</head><body class="p-dict" style="height: 591px;">";
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
InitViews();
setListener();
// 内部打开连接
wvShow.setWebViewClient(new WebViewClient() {
public boolean shouldOverrideUrlLoading(WebView view, String url) {
view.loadUrl(url);
return true;
}
});
// 滚动条
wvShow.setScrollBarStyle(View.SCROLLBARS_INSIDE_OVERLAY);
}
public void Search() {
selectDict();
if (dictName == "ec") { //基本释义使用另外的接口
String word = etInput.getText().toString().trim();
StringBuffer buffer = new StringBuffer();
buffer.append("<html><head><link rel="stylesheet" href="file:///android_asset/font.css" type="text/css"></head><body>");
JsonString json = new JsonString();
try {
json.setJsonString(word);
JSONObject jsonObject = new JSONObject(json.getStrJson());
JSONObject basic = jsonObject.getJSONObject("basic");
buffer.append("<p class="us-phonetic">us-phonetic:" + basic.getString("us-phonetic") + "</p><br>");
buffer.append("<p class="uk-phonetic">uk-phonetic:" + basic.getString("uk-phonetic") + "</p><br>");
JSONArray explains = basic.getJSONArray("explains");
for (int i = 0; i < explains.length(); i++) {
buffer.append(explains.getString(i) + "<br>");
}
buffer.append("</body></html>");
System.out.println(buffer.toString());
//wvShow.loadData(buffer.toString(), "text/html", "UTF-8");
//wvShow.getSettings().setDefaultTextEncodingName("UTF-8");
wvShow.loadDataWithBaseURL("", buffer.toString(), "text/html", "UTF-8", "");
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
else {
HtmlString htmlString = new HtmlString();
String word = etInput.getText().toString().trim();
try {
htmlString.setwebString(word, dictName);
String html = body + "<div id="" + dictName + "" " +
"class="trans-container " + dictName + "">"
+htmlString.getwebString() + "</div></body></html>";
//wvShow.getSettings().setDefaultTextEncodingName("UTF-8");
wvShow.loadDataWithBaseURL("http://m.youdao.com/",
html, "text/html", "UTF-8", null);
System.out.println(html);
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
// 软键盘开启则关闭，关闭则开启
imm = (InputMethodManager) getSystemService(INPUT_METHOD_SERVICE);
if (imm.isActive()) {
imm.toggleSoftInput(InputMethodManager.SHOW_IMPLICIT,
InputMethodManager.HIDE_NOT_ALWAYS);
}
}
public void InitViews() //初始化
{
btnSrarch = (Button) findViewById(R.id.btnSearch);
btnClear = (Button) findViewById(R.id.btnClear);
etInput = (EditText) findViewById(R.id.etInput);
wvShow = (WebView) findViewById(R.id.wvShow);
wvShow.getSettings().setDefaultTextEncodingName("UTF-8");
spinner = (Spinner) findViewById(R.id.sp);
adapter = new ArrayAdapter<String>(this,
android.R.layout.simple_spinner_item, dict);
adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
spinner.setAdapter(adapter);
spinner.setOnItemSelectedListener(new OnItemSelectedListener() {
@Override
public void onItemSelected(AdapterView<?> parent, View view,
int position, long id) {
// TODO Auto-generated method stub
dictName = adapter.getItem(position);
}
@Override
public void onNothingSelected(AdapterView<?> parent) {
// TODO Auto-generated method stub
dictName = dict[0];
}
});
}
public void setListener() //设置监听器
{
// 键盘监听
etInput.setOnKeyListener(new OnKeyListener() {
@Override
public boolean onKey(View v, int keyCode, KeyEvent event) {
// TODO Auto-generated method stub
if (keyCode == KeyEvent.KEYCODE_ENTER) {
Search();
wvShow.setFocusable(true);
wvShow.setFocusableInTouchMode(true);
wvShow.requestFocus();
}
return false;
}
});
// 搜索按钮监听
btnSrarch.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
String word = etInput.getText().toString();
word = word.trim();
if (word.length() == 0) {
Toast.makeText(MainActivity.this, "查询内容为空",
Toast.LENGTH_LONG).show();
} else {
// String urlString =
// "http://dict.youdao.com/m/search?keyfrom=dict.mindex&vendor=&q="+
// word;
// String urlString = "http://m.youdao.com/dict?le=eng&q="
// + word;
// wvShow.loadUrl(urlString);
Search();
wvShow.setFocusable(true);
wvShow.setFocusableInTouchMode(true);
wvShow.requestFocus();
}
}
});
// 清除按钮监听
btnClear.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
etInput.setText("");
}
});
}
//选择辞典
public void selectDict() {
for (int i = 0; i < dict.length; i++) {
if (dictName == dict[i]) {
dictName = dicts[i];
break;
}
}
}
}
效果图
毕设电子词典效果图
