Android uses HTML Design Software Interface webview

MainActivity. java [java] package cn.itcast.html; import java. util. list; import org. json. JSONArray; import org. json. JSONException; import org. json. JSONObject; import cn. itcast. domain. contact; import cn. itcast. service. contactService; import android. app. activity; import android. content. intent; import android.net. uri; import android. OS. bundle; import android. util. log; import android. webkit. webView; publ Ic class MainActivity extends Activity {private static final String TAG = "MainActivity"; private ContactService contactService; private WebView webView; @ Override public void onCreate (Bundle savedInstanceState) {super. onCreate (savedInstanceState); setContentView (R. layout. main); contactService = new ContactService (); webView = (WebView) this. findViewById (R. id. webView); webView. getSettings (). setJa VaScriptEnabled (true); webView. addJavascriptInterface (new ContactPlugin (), "contact"); // webView. loadUrl ("file: // android_asset/index.html"); webView. loadUrl ("http: // 192.168.1.100: 8080/videoweb/index.html");} private final class ContactPlugin {public void getContacts () {List <Contact> contacts = contactService. getContacts (); try {JSONArray array = new JSONArray (); for (Contact: contacts ){ JSONObject item = new JSONObject (); item. put ("id", contact. getId (); item. put ("name", contact. getName (); item. put ("mobile", contact. getMobile (); array. put (item);} String json = array. toString (); Log. I (TAG, json); webView. loadUrl ("javascript: show ('" + json + "')");} catch (JSONException e) {e. printStackTrace () ;}} public void call (String mobile) {Intent intent = new Intent (Intent. ACTION_CALL, Uri. parse ("tel:" + mobile); startActivity (intent) ;}} ContactService. java [java] package cn. itcast. service; import java. util. arrayList; import java. util. list; import cn. itcast. domain. contact; public class ContactService {public List <Contact> getContacts () {List <Contact> contacts = new ArrayList <Contact> (); contacts. add (new Contact (34, "Zhang Xiaoxiang", "1398320333"); contacts. add (new Contact (39, "Feng wei", "1 332432444 "); contacts. add (new Contact (67, "old Bi", "1300320333"); return contacts ;}} Contact. java [java] package cn. itcast. domain; public class Contact {private Integer id; private String name; private String mobile; public Integer getId () {return id;} public void setId (Integer id) {this. id = id;} public String getName () {return name;} public void setName (String name) {this. name = name ;} Public String getMobile () {return mobile;} public void setMobile (String mobile) {this. mobile = mobile;} public Contact (Integer id, String name, String mobile) {super (); this. id = id; this. name = name; this. mobile = mobile ;}} index.html [html] <! DOCTYPE html PUBLIC "-// W3C // dtd html 4.01 Transitional // EN" "http://www.w3.org/TR/html4/loose.dtd">