//****連接數(shù)據(jù)庫**DBManager***
public class DBManager {

 // 數(shù)據(jù)庫連接常量
 public static final String DRIVER = "com.mysql.jdbc.Driver";
 public static final String USER = "root";
 public static final String PASS = "root";
 public static final String URL = "jdbc:mysql://localhost:3306/shop";

 // 靜態(tài)成員，支持單態(tài)模式
 private static DBManager per = null;
 private Connection conn = null;
 private Statement stmt = null;

 // 單態(tài)模式-懶漢模式
 private DBManager() {
 }

 public static DBManager createInstance() {
  if (per == null) {
   per = new DBManager();
   per.initDB();
  }
  return per;
 }

 // 加載驅(qū)動(dòng)
 public void initDB() {
  try {
   Class.forName("com.mysql.jdbc.Driver");
  } catch (Exception e) {
   e.printStackTrace();
  }
 }

 // 連接數(shù)據(jù)庫，獲取句柄+對(duì)象
 public void connectDB() {
  System.out.println("Connecting to database...");
  try {
   conn = DriverManager.getConnection(URL, USER, PASS);
   stmt = conn.createStatement();
  } catch (SQLException e) {
   e.printStackTrace();
  }
  System.out.println("SqlManager:Connect to database successful.");
 }

 // 關(guān)閉數(shù)據(jù)庫 關(guān)閉對(duì)象，釋放句柄
 public void closeDB() {
  System.out.println("Close connection to database..");
  try {
   stmt.close();
   conn.close();
  } catch (SQLException e) {
   e.printStackTrace();
  }
  System.out.println("Close connection successful");
 }

 // 查詢
 public ResultSet executeQuery(String sql) {
  ResultSet rs = null;
  try {
   rs = stmt.executeQuery(sql);
  } catch (SQLException e) {
   e.printStackTrace();
  }
  return rs;
 }

 // 增添/刪除/修改
 public int executeUpdate(String sql) {
  int ret = 0;
  try {
   ret = stmt.executeUpdate(sql);
  } catch (SQLException e) {
   e.printStackTrace();
  }
  return ret;
 }
}

//****服務(wù)代碼****
public class StartService {
 /**
  * 登錄方法
  * @param username
  * @param password
  * @return 登錄成功與否
  */
 public HashMap<String, String> login(String username, String password) {

  HashMap<String, String> hashMap = new HashMap<String, String>();
  // 獲取Sql查詢語句
  String logSql = "select perssion from userinfo where username ='"
    + username + "' and password ='" + password + "'";
  System.out.println(logSql);
  // 獲取DB對(duì)象
  DBManager sql = DBManager.createInstance();
  sql.connectDB();

  hashMap.put("permission", "-1");
  hashMap.put("username", username);

  // 操作DB對(duì)象
  try {
   ResultSet rs = sql.executeQuery(logSql);
   if (rs.next()) {
    hashMap.put("permission", rs.getInt(1) + "");
    System.out.print("權(quán)限===" + rs.getInt(1) + "\t");
    sql.closeDB();
    return hashMap;
   }
  } catch (SQLException e) {
   e.printStackTrace();
  }
  sql.closeDB();
  return hashMap;
 }

 /**
  * 注冊(cè)方法
  * @param username
  * @param password
  * @return 注冊(cè)成功與否
  */
 public HashMap<String, String> register(String username, String password) {

  HashMap<String, String> hashMap = new HashMap<String, String>();
  hashMap.put("username", username);
  hashMap.put("msg", "notok");
  if (this.namerepeat(username)) {
   hashMap.put("msg", "rename");
  } else {
   // 獲取Sql查詢語句
   String regSql = "insert into userinfo(username,password) values('"
     + username + "','" + password + "')";
   System.out.println(regSql);

   // 獲取DB對(duì)象
   DBManager sql = DBManager.createInstance();
   sql.connectDB();

   int ret = sql.executeUpdate(regSql);
   if (ret != 0) {
    hashMap.put("msg", "ok");
    sql.closeDB();
    return hashMap;
   }
   sql.closeDB();
  }

  return hashMap;
 }

 /**
  * 檢測(cè)該賬戶是否已經(jīng)注冊(cè)
  * 
  * @param username
  * @return 注冊(cè)狀態(tài)
  */
 public Boolean namerepeat(String username) {
  String checkSql = "select username from userinfo where username ='"
    + username + "'";
  // 獲取Sql查詢語句
  System.out.println(checkSql);

  // 獲取DB對(duì)象
  DBManager sql = DBManager.createInstance();
  sql.connectDB();

  // 操作DB對(duì)象
  try {
   ResultSet rs = sql.executeQuery(checkSql);
   if (rs.next()) {

    sql.closeDB();
    return true;
   }
  } catch (SQLException e) {
   e.printStackTrace();
  }
  sql.closeDB();
  return false;
 }
}

//****登錄代碼****
String username = request.getParameter("username");
String password = request.getParameter("password");
username = new String(username.getBytes("ISO-8859-1"), "UTF-8");
System.out.println("客戶端參數(shù)：" + username + " ====== " + password);
 // 新建服務(wù)對(duì)象，默認(rèn)權(quán)限為-1（未登錄狀態(tài)）
 StartService serv = new StartService();
 int permission = -1;
 HashMap<String, String> logiii = serv.login(username, password);
 String a = logiii.get("username");
 // 登陸驗(yàn)證處理（權(quán)限>-1為登錄成功）
 if ("-1".equals(logiii.get("permission"))) {
  // 登錄失敗
  System.out.print("登錄失敗Failed");
 } else {
  // 登陸成功
  permission = Integer.parseInt(logiii.get("permission"));
 }
 JSONObject jsonObj = new JSONObject();
 try {
  jsonObj.put("username", username);
  jsonObj.put("permission", permission);
  System.out.println(jsonObj);
  // 返回信息到客戶端
  response.setCharacterEncoding("UTF-8");
  response.setContentType("text/html");
  PrintWriter out = response.getWriter();
  out.print(jsonObj);
  out.flush();
  out.close();
 } catch (JSONException e) {
  e.printStackTrace();
 }

{
 "username": "001",
 "msg": "ok"
}

{
 "username": "001",
 "permission": 0
}

{
 "status": ok, //連接狀態(tài)
 "code": "200" //錯(cuò)誤代碼
 "messages": [ //題目?jī)?nèi)容
  {
   "_id": 1, //題目id
   "title": "1+1=？" //題目
   "q_type": 0, //題目類型
   "optionA": "1", //A選項(xiàng)
   "optionB": "2", //B選項(xiàng)
   "optionC": "3", //C選項(xiàng)
   "optionD": "4", //D選項(xiàng)
   "tips”:"這么簡(jiǎn)單還要提示？", //提示
   "answer": "B", //答案
  },
  {
   "_id": 2,
    "title": "2+2=?" 
   "q_type": 0, 
   "optionA": "1", 
   "optionB": "2", 
   "optionC": "3", 
   "optionD": "4",
   "tips":"這么簡(jiǎn)單還要提示？", 
   "answer": "D",
  }
 ],
}

public abstract class BaseActivity extends FragmentActivity implements View.OnClickListener {
 @Override
 protected final void onCreate(@Nullable Bundle savedInstanceState) {
  super.onCreate(savedInstanceState);
  //得到布局文件
  setContentView(getLayoutId());

  //初始化
  initView();
  initData();
  initListener();
 }

 /**
  * @return 布局文件id
  */
 abstract int getLayoutId();

 /**
  * 初始化View
  */
 void initView() {
 }

 /**
  * 初始化界面數(shù)據(jù)
  */
 void initData() {
 }

 /**
  * 綁定監(jiān)聽器與適配器
  */
 void initListener() {
 }

 /**
  * 對(duì)統(tǒng)一的按鈕進(jìn)行統(tǒng)一處理
  *
  * @param v 點(diǎn)擊的View
  */
 @Override
 public void onClick(View v) {
  switch (v.getId()) {
   default:
    processClick(v);
    break;
  }
 }

 /**
  * 點(diǎn)擊事件
  *
  * @param v 點(diǎn)擊的View
  */
 void processClick(View v) {
 }
}

public class SplashActivity extends BaseActivity {

 @Override
 int getLayoutId() {
  return R.layout.activity_splash;
 }
 @Override
 void initData() {
  //延時(shí)2s，跳轉(zhuǎn)。
  new Handler().postDelayed(new Runnable() {
   @Override
   public void run() {
    //跳轉(zhuǎn)主頁面
    Intent intent = new Intent(SplashActivity.this, MainActivity.class);
    startActivity(intent);
    finish();
   }
  }, 2000);
 }

}

public class LoginActivity extends BaseActivity {
 private static final int REQUEST_SIGNUP = 0;
 EditText et_username;
 EditText et_password;
 Button btn_login;
 TextView tv_signup;

 @Override
 int getLayoutId() {
  return R.layout.activity_login;
 }

 @Override
 void initView() {
  //通過id找控件
  et_username = (EditText) findViewById(R.id.input_username);
  et_password = (EditText) findViewById(R.id.input_password);
  btn_login = (Button) findViewById(R.id.btn_login);
  tv_signup = (TextView) findViewById(R.id.link_signup);
 }

 @Override
 void initListener() {
  //登錄按鈕，注冊(cè)鏈接設(shè)置點(diǎn)擊監(jiān)聽事件
  btn_login.setOnClickListener(this);
  tv_signup.setOnClickListener(this);
 }

 @Override
 void processClick(View v) {
  switch (v.getId()) {
   //點(diǎn)擊登錄按鈕，執(zhí)行登錄操作
   case R.id.btn_login:
    login();
    break;
   //如果點(diǎn)擊了注冊(cè)鏈接，則跳轉(zhuǎn)到注冊(cè)頁面
   case R.id.link_signup:
    Intent intent = new Intent(getApplicationContext(), SignupActivity.class);
    startActivityForResult(intent, REQUEST_SIGNUP);
    finish();
    //動(dòng)畫效果
    overridePendingTransition(R.anim.push_left_in, R.anim.push_left_out);
    break;
   default:
    break;
  }
 }

 /**
  * 登錄方法
  */
 public void login() {
  //如果內(nèi)容不合法，則直接返回，顯示錯(cuò)誤。
  if (!validate()) {
   onLoginFailed();
   return;
  }
  //輸入合法，將登錄按鈕置為不可用，顯示圓形進(jìn)度對(duì)話框
  btn_login.setEnabled(false);
  final ProgressDialog progressDialog = new ProgressDialog(LoginActivity.this, R.style.AppTheme_Dark_Dialog);
  progressDialog.setIndeterminate(true);
  progressDialog.setMessage("登錄中...");
  progressDialog.show();
  //獲取輸入內(nèi)容
  String username = et_username.getText().toString().trim();
  String password = et_password.getText().toString().trim();
  //聯(lián)網(wǎng)，獲取數(shù)據(jù)
  OkGo.get(CONFIG.URL_LOGIN)
    .params("username", username)
    .params("password", password)
    .execute(new StringCallback() {
     @Override
     public void onSuccess(String s, Call call, Response response) {
      Gson gson = new Gson();
      JsonLoginBean jsonLoginBean = gson.fromJson(s, JsonLoginBean.class);
      //如果得到權(quán)限>0,則登錄成功。
      if (jsonLoginBean.getPermission() > 0) {
       Log.e("zwc", "onSuccess: ===");
       onLoginSuccess();
       progressDialog.dismiss();
      } else {
       onLoginFailed();
       progressDialog.dismiss();
      }
     }
    });
 }

 @Override
 protected void onActivityResult(int requestCode, int resultCode, Intent data) {
  if (requestCode == REQUEST_SIGNUP) {
   if (resultCode == RESULT_OK) {
    this.finish();
   }
  }
 }

 /**
  * 重寫返回鍵的返回方法
  */
 @Override
 public void onBackPressed() {
  // Disable going back to the MainActivity
  moveTaskToBack(true);
 }

 /**
  * 登錄成功
  */
 public void onLoginSuccess() {
  btn_login.setEnabled(true);
  Intent intent = new Intent(LoginActivity.this, MainActivity.class);
  startActivity(intent);
  finish();
 }

 /**
  * 登錄失敗
  */
 public void onLoginFailed() {
  Toast.makeText(getBaseContext(), "登陸失敗", Toast.LENGTH_LONG).show();
  btn_login.setEnabled(true);
 }

 /**
  * @return 判斷是否賬號(hào)密碼是否合法
  */
 public boolean validate() {
  //設(shè)置初值，默認(rèn)為合法
  boolean valid = true;

  //獲取輸入內(nèi)容
  String email = et_username.getText().toString().trim();
  String password = et_password.getText().toString().trim();

  //判斷賬號(hào)
  if (email.isEmpty()) {
   et_username.setError("請(qǐng)輸入你的賬號(hào)");
   valid = false;
  } else {
   et_username.setError(null);
  }
  //判斷密碼
  if (password.isEmpty()) {
   et_password.setError("請(qǐng)輸入你的密碼");
   valid = false;
  } else {
   et_password.setError(null);
  }

  return valid;
 }
}

<?xml version="1.0" encoding="utf-8"?>
<ScrollView xmlns:android="http://schemas.android.com/apk/res/android"
 android:layout_width="fill_parent"
 android:layout_height="fill_parent"
 android:fitsSystemWindows="true">
 <LinearLayout
  android:orientation="vertical"
  android:layout_width="match_parent"
  android:layout_height="wrap_content"
  android:paddingTop="56dp"
  android:paddingLeft="24dp"
  android:paddingRight="24dp">

  <ImageView android:src="@drawable/logo"
   android:layout_width="wrap_content"
   android:layout_height="72dp"
   android:layout_marginBottom="24dp"
   android:layout_gravity="center_horizontal" />

  <!-- 賬號(hào) -->
  <android.support.design.widget.TextInputLayout
   android:layout_width="match_parent"
   android:layout_height="wrap_content"
   android:layout_marginTop="8dp"
   android:layout_marginBottom="8dp">
   <EditText
    android:id="@+id/input_username"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:inputType="number"
    android:hint="賬號(hào)" />
  </android.support.design.widget.TextInputLayout>

  <!-- 密碼 -->
  <android.support.design.widget.TextInputLayout
   android:layout_width="match_parent"
   android:layout_height="wrap_content"
   android:layout_marginTop="8dp"
   android:layout_marginBottom="8dp">
   <EditText android:id="@+id/input_password"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:inputType="textPassword"
    android:hint="密碼"/>
  </android.support.design.widget.TextInputLayout>

  <android.support.v7.widget.AppCompatButton
   android:id="@+id/btn_login"
   android:layout_width="fill_parent"
   android:layout_height="wrap_content"
   android:layout_marginTop="24dp"
   android:layout_marginBottom="24dp"
   android:padding="12dp"
   android:text="登陸"/>

  <TextView android:id="@+id/link_signup"
   android:layout_width="fill_parent"
   android:layout_height="wrap_content"
   android:layout_marginBottom="24dp"
   android:text="沒有賬號(hào)？創(chuàng)建一個(gè)"
   android:gravity="center"
   android:textSize="16dip"/>
 </LinearLayout>
</ScrollView>

public class SignupActivity extends BaseActivity {

 EditText _nameText;
 EditText _emailText;
 EditText _passwordText;
 EditText _reEnterPasswordText;
 Button _signupButton;
 TextView _loginLink;

 @Override
 int getLayoutId() {
  return R.layout.activity_signup;
 }

 @Override
 void initView() {
  //根據(jù)id找控件
  _nameText = (EditText) findViewById(R.id.input_name);
  _emailText = (EditText) findViewById(R.id.input_username);
  _passwordText = (EditText) findViewById(R.id.input_password);
  _reEnterPasswordText = (EditText) findViewById(R.id.input_reEnterPassword);
  _signupButton = (Button) findViewById(R.id.btn_signup);
  _loginLink = (TextView) findViewById(R.id.link_login);
  _signupButton.setOnClickListener(this);
  _loginLink.setOnClickListener(this);
 }

 @Override
 void processClick(View v) {
  switch (v.getId()) {
   case R.id.btn_signup:
    signup();
    break;
   case R.id.link_login:
    //點(diǎn)擊登錄連接，跳轉(zhuǎn)到登錄頁面
    Intent intent = new Intent(getApplicationContext(), LoginActivity.class);
    startActivity(intent);
    finish();
    overridePendingTransition(R.anim.push_left_in, R.anim.push_left_out);
    break;
   default:
    break;
  }
 }

 public void signup() {
  //判斷是否合法
  if (!validate()) {
   onSignupFailed(0);
   return;
  }
  _signupButton.setEnabled(false);

  //顯示圓形進(jìn)度條對(duì)話框
  final ProgressDialog progressDialog = new ProgressDialog(SignupActivity.this,
    R.style.AppTheme_Dark_Dialog);
  progressDialog.setIndeterminate(true);
  progressDialog.setMessage("創(chuàng)建賬號(hào)...");
  progressDialog.show();
  //獲取數(shù)據(jù)
  String username = _nameText.getText().toString();
  String password = _passwordText.getText().toString();
//  聯(lián)網(wǎng)獲取數(shù)據(jù)
  OkGo.get(CONFIG.URL_SIGNUP)
    .params("username", username)
    .params("password", password)
    .execute(new StringCallback() {
     @Override
     public void onSuccess(String s, Call call, Response response) {
      Gson gson = new Gson();
      JsonSignupBean jsonSignupBean = gson.fromJson(s, JsonSignupBean.class);
      //如果得到返回消息為ok,則注冊(cè)成功。
      if (jsonSignupBean.getMsg().equals("ok")) {
       Log.e("zwc", "onSuccess: 注冊(cè)成功");
       onSignupSuccess();
       //對(duì)話框消失
       progressDialog.dismiss();
      } else {
       onSignupFailed(1);
       progressDialog.dismiss();
      }
     }
    });
 }

 /**
  * 登陸成功
  */
 public void onSignupSuccess() {
  _signupButton.setEnabled(true);

  Intent intent = new Intent(SignupActivity.this, MainActivity.class);
  startActivity(intent);
  finish();
 }

 /**
  * 注冊(cè)失敗，按鈕置為可用
  * 依據(jù)傳參不同，進(jìn)行不同吐司
  */
 public void onSignupFailed(int i) {
  if (i == 1) {
   Toast.makeText(getBaseContext(), "該用戶名已經(jīng)被注冊(cè)", Toast.LENGTH_LONG).show();
  } else {
   Toast.makeText(getBaseContext(), "注冊(cè)失敗", Toast.LENGTH_LONG).show();
  }
  _signupButton.setEnabled(true);
 }

 /**
  * @return 輸入內(nèi)容是否合法
  */
 public boolean validate() {
  boolean valid = true;
  //從控件中獲取數(shù)據(jù)
  String name = _nameText.getText().toString();
  String password = _passwordText.getText().toString();
  String reEnterPassword = _reEnterPasswordText.getText().toString();
  //檢測(cè)賬號(hào)是否正確
  if (name.isEmpty()) {
   _nameText.setError("賬號(hào)不能為空");
   valid = false;
  } else {
   _nameText.setError(null);
  }
  //檢測(cè)密碼是否正確
  if (password.isEmpty()) {
   _passwordText.setError("請(qǐng)輸入密碼");
   valid = false;
  } else {
   _passwordText.setError(null);
  }
  //檢測(cè)重復(fù)密碼是否正確
  if (reEnterPassword.isEmpty() || !(reEnterPassword.equals(password))) {
   _reEnterPasswordText.setError("兩次密碼不一致");
   valid = false;
  } else {
   _reEnterPasswordText.setError(null);
  }
  return valid;
 }
}

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

 <LinearLayout
  android:layout_width="match_parent"
  android:layout_height="wrap_content"
  android:orientation="vertical"
  android:paddingLeft="24dp"
  android:paddingRight="24dp"
  android:paddingTop="56dp">

  <ImageView
   android:layout_width="wrap_content"
   android:layout_height="72dp"
   android:layout_gravity="center_horizontal"
   android:layout_marginBottom="24dp"
   android:src="@drawable/logo" />

  <!-- 賬號(hào) -->
  <android.support.design.widget.TextInputLayout
   android:layout_width="match_parent"
   android:layout_height="wrap_content"
   android:layout_marginBottom="8dp"
   android:layout_marginTop="8dp">

   <EditText
    android:id="@+id/input_name"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:hint="賬號(hào)"
    android:inputType="textPersonName" />
  </android.support.design.widget.TextInputLayout>

  <!-- 密碼 -->
  <android.support.design.widget.TextInputLayout
   android:layout_width="match_parent"
   android:layout_height="wrap_content"
   android:layout_marginBottom="8dp"
   android:layout_marginTop="8dp">

   <EditText
    android:id="@+id/input_password"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:hint="密碼"
    android:inputType="textPassword" />
  </android.support.design.widget.TextInputLayout>

  <!-- 重復(fù)密碼 -->
  <android.support.design.widget.TextInputLayout
   android:layout_width="match_parent"
   android:layout_height="wrap_content"
   android:layout_marginBottom="8dp"
   android:layout_marginTop="8dp">

   <EditText
    android:id="@+id/input_reEnterPassword"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:hint="重復(fù)密碼"
    android:inputType="textPassword" />
  </android.support.design.widget.TextInputLayout>

  <android.support.v7.widget.AppCompatButton
   android:id="@+id/btn_signup"
   android:layout_width="fill_parent"
   android:layout_height="wrap_content"
   android:layout_marginBottom="24dp"
   android:layout_marginTop="24dp"
   android:padding="12dp"
   android:text="創(chuàng)建賬號(hào)" />

  <TextView
   android:id="@+id/link_login"
   android:layout_width="fill_parent"
   android:layout_height="wrap_content"
   android:layout_marginBottom="24dp"
   android:gravity="center"
   android:text="已有賬號(hào)？馬上登陸"
   android:textSize="16dip" />

 </LinearLayout>
</ScrollView>

public class AnswerActivity extends BaseActivity implements Chronometer.OnChronometerTickListener {

 private Chronometer chronometer;
 private ViewPager vp_answer;
 private ArrayList<Fragment> fragmentlists;
 private int minute = 0;
 private int second = 0;
 private AlertDialog.Builder builder;
 private ArrayList<String> a;
 private Button btn_previous;
 private Button btn_submit;
 private Button btn_next;
 private int nowpager = 0;
 private List<QuestBean> messages;
 private String type;

 @Override
 int getLayoutId() {
  return R.layout.activity_answer;
 }

 /**
  * 初始化布局
  */
 @Override
 void initView() {
  chronometer = (Chronometer) findViewById(R.id._chro_exam);
  vp_answer = (ViewPager) findViewById(R.id.vp_answer);
  btn_previous = (Button) findViewById(R.id._btn_previous);
  btn_submit = (Button) findViewById(R.id._btn_submit);
  btn_next = (Button) findViewById(R.id._btn_next);
//  獲取傳遞來的變量
  type = getIntent().getExtras().get("type").toString().trim();

//  聯(lián)網(wǎng)獲取數(shù)據(jù)
  initNet(type);

  btn_previous.setOnClickListener(this);
  btn_submit.setOnClickListener(this);
  btn_next.setOnClickListener(this);
  vp_answer.setOnPageChangeListener(new MyOnPageChangeListener());
  setChronometer();
 }

 /**
  * 設(shè)置計(jì)時(shí)器
  */
 private void setChronometer() {
  chronometer.setText(nowtime());
  chronometer.start();
  chronometer.setOnChronometerTickListener(this);
  chronometer.setOnClickListener(this);
 }

 /**
  * 計(jì)時(shí)器規(guī)則
  *
  * @param chronometer
  */
 @Override
 public void onChronometerTick(Chronometer chronometer) {
  second++;
  if (second == 59) {
   minute++;
   second = 00;
  }
 }

 /**
  * 現(xiàn)在時(shí)間
  *
  * @return
  */
 private String nowtime() {
  if (second < 10) {
   return (minute + ":0" + second);
  } else {
   return (minute + ":" + second);
  }
 }

 /**
  * 初始化網(wǎng)絡(luò)連接
  * @param type
  */
 private void initNet(String type) {
  a = new ArrayList<>();
  fragmentlists = new ArrayList<>();
  Log.e("zwc", "initNet: 開始聯(lián)網(wǎng)…………");
  //進(jìn)度條對(duì)話框
  final ProgressDialog progressDialog = new ProgressDialog(AnswerActivity.this, R.style.AppTheme_Dark_Dialog);
  progressDialog.setIndeterminate(true);
  progressDialog.setMessage("獲取題目中...");
  progressDialog.show();
//  聯(lián)網(wǎng)
  OkGo.get(CONFIG.URL_GETQUEST1)
    .params("type", type)
    .execute(new StringCallback() {
     @Override
     public void onSuccess(String s, Call call, Response response) {
      Log.i("zwc", "onSuccess: ========---------======" + s);
      //gson解析
      Gson gson = new Gson();
      JsonQuestBean jsonQuestBean = gson.fromJson(s, JsonQuestBean.class);
      messages = jsonQuestBean.getMessages();
      for (int i = 0; i < messages.size(); i++) {
       QuestBean questBeanQ = messages.get(i);
       questBeanQ.setId(i);
       fragmentlists.add(new AnswerFragment(questBeanQ));
       LoveDao.insertLove(questBeanQ);
       a.add(questBeanQ.getId() + "");
       Log.e("zwc", i + "ooooooonSuccessssssssssss: " + questBeanQ.getId() + questBeanQ.getTitle());
      }
//      設(shè)置適配器
      vp_answer.setAdapter(new MainAdapter(getSupportFragmentManager()));
      progressDialog.dismiss();
     }

     @Override
     public void onError(Call call, Response response, Exception e) {
      Log.i("zwc", "onError///////////////////");
     }
    });
  Log.e("zwc", "initNet: 聯(lián)網(wǎng)結(jié)束…………");
 }

 /**
  * viewpager適配器
  */
 class MainAdapter extends FragmentPagerAdapter {

  public MainAdapter(FragmentManager fm) {
   super(fm);
  }

  //獲取條目
  @Override
  public Fragment getItem(int position) {
   return fragmentlists.get(position);
  }

  //數(shù)目
  @Override
  public int getCount() {
   return fragmentlists.size();
  }
 }

 @Override
 void processClick(View v) {
  switch (v.getId()) {
//   點(diǎn)擊上一題按鈕
   case R.id._btn_previous:
//    如果是第一題，則談吐司提醒，否則上移一道題
    if (nowpager == 0) {
     Toast.makeText(AnswerActivity.this, "已經(jīng)到頭啦!", Toast.LENGTH_SHORT).show();
    } else {
     vp_answer.setCurrentItem(--nowpager);
    }
    break;
//   點(diǎn)擊提交按鈕
   case R.id._btn_submit:
//    簡(jiǎn)答題不進(jìn)行提交評(píng)分
    if (type.equals("3")) {
     Toast.makeText(this, "簡(jiǎn)答題目前暫不支持評(píng)分", Toast.LENGTH_SHORT).show();
     return;
    }
//    否則初始化并展示提交對(duì)話框
    initAlertDialog();
    builder.show();
    break;
//   點(diǎn)擊下一題按鈕
   case R.id._btn_next:
//    如果是最后一題，則談吐司提醒，否則下移一道題
    if (nowpager == fragmentlists.size()) {
     Toast.makeText(AnswerActivity.this, "已經(jīng)是最后一題了!", Toast.LENGTH_SHORT).show();
    } else {
     vp_answer.setCurrentItem(++nowpager);
    }
    break;
   default:
    break;
  }
 }

 // 彈出是否確認(rèn)交卷的對(duì)話框
 private void initAlertDialog() {
  //新建對(duì)話框
  builder = new AlertDialog.Builder(AnswerActivity.this);
  builder.setTitle("提示");
  builder.setMessage("是否確定交卷?");
  builder.setPositiveButton("確定", new DialogInterface.OnClickListener() {
   @Override
   public void onClick(DialogInterface dialog, int which) {
    // TODO: 2017/6/14 交卷操作
//    計(jì)算分?jǐn)?shù)
    int grade = 0;
//    判斷題
    if (type.equals("2")) {
     for (int i = 0; i < messages.size(); i++) {
//      查詢
      QuestBean questBeenA = LoveDao.queryLove(Integer.parseInt(a.get(i)));
//      判斷
      if (questBeenA.getAnswer().equals("對(duì)") && questBeenA.getMyanswer().equals("A") || questBeenA.getAnswer().equals("錯(cuò)") && questBeenA.getMyanswer().equals("B")) {
       grade += 20;
      }
      ;
     }
    }
//    選擇題
    else {
     for (int i = 0; i < messages.size(); i++) {
      QuestBean questBeenA = LoveDao.queryLove(Integer.parseInt(a.get(i)));
      if (questBeenA.getAnswer().equals(questBeenA.getMyanswer())) {
       grade += 20;
      }
      ;
     }
    }

//    傳遞分?jǐn)?shù)
    Intent intent = new Intent(AnswerActivity.this, GradeActivity.class);
    intent.putExtra("grade", "" + grade);
//    傳遞題目列表
    intent.putStringArrayListExtra("timu", a);
    startActivity(intent);
    finish();
   }

  });
  builder.setNegativeButton("取消", null);
 }

 /**
  * viewpager監(jiān)聽事件
  */
 private class MyOnPageChangeListener implements ViewPager.OnPageChangeListener {
  @Override
  public void onPageScrolled(int position, float positionOffset, int positionOffsetPixels) {
  }

  @Override
  public void onPageSelected(int position) {
   nowpager = position;
  }

  @Override
  public void onPageScrollStateChanged(int state) {

  }
 }