Android实现登录注册功能封装

时间：2020-11-29 10:57:05|栏目：Android代码|点击：次

我们都知道Android应用软件基本上都会用到登录注册功能，那么对一个一个好的登录注册模块进行封装就势在必行了。这里给大家介绍一下我的第一个项目中所用到的登录注册功能的，已经对其进行封装，希望能对大家有帮助，如果有什么错误或者改进的话希望各位可以指出。

我们都知道登录注册系列功能的实现有以下几步：

注册账号
登录账号（第三方账号登录）
记住密码
自动登录
修改密码

大体的流程如下

对于需要获取用户登录状态的操作，先判断用户是否已经登录。

如果用户已经登录，则继续后面的操作，否则，跳转到登录页面进行登录。

如果已经有账号，则可以直接登录，或者可以直接选择第三方平台授权登录。

如果还没有账号，则需要先进行账号注册，注册成功后再登录；也可以不注册账号，通过第三方平台授权进行登录。

如果有账号，但忘记密码，可以重置密码，否则直接登录。

好了，一个登录注册系列的常用功能就是以上这五点了，大体流程也已经知道了，接下来让我们一个一个的实现它们。

注册功能的实现

注册时一般通过手机或者邮箱来注册，这里我选择利用手机号来注册；且注册时通常需要接收验证码，这里通过第三方的Mob平台的短信SDK来实现，第三方账号授权也是利用Mob的ShareSDK来实现的。注册完成后由客户端将注册信息提交至服务端进行注册，提交方式为HTTP的POST请求方式。

SignUpActivity.Java

package com.example.administrator.loginandregister.activity;

import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.os.Handler;
import android.os.Message;
import android.text.TextUtils;
import android.util.Log;
import android.view.KeyEvent;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.inputmethod.EditorInfo;
import android.widget.Button;
import android.widget.TextView;
import android.widget.TextView.OnEditorActionListener;
import android.widget.Toast;

import com.example.administrator.loginandregister.R;
import com.example.administrator.loginandregister.utils.RegexUtils;
import com.example.administrator.loginandregister.utils.ToastUtils;
import com.example.administrator.loginandregister.utils.VerifyCodeManager;
import com.example.administrator.loginandregister.views.CleanEditText;

import org.json.JSONException;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.OutputStream;
import java.net.HttpURLConnection;
import java.net.URL;
import java.net.URLEncoder;
import java.util.Timer;
import java.util.TimerTask;

/**
 * Created by JimCharles on 2016/11/27.
 */

public class SignUpActivity extends Activity implements OnClickListener {
  private static final String TAG = "SignupActivity";
  // 界面控件
  private CleanEditText phoneEdit;
  private CleanEditText passwordEdit;
  private CleanEditText verifyCodeEdit;
  private CleanEditText nicknameEdit;
  private Button getVerifiCodeButton;
  private Button createAccountButton;

  private VerifyCodeManager codeManager;
  String result = "";

  @Override
  protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_signup);

    initViews();
    codeManager = new VerifyCodeManager(this, phoneEdit, getVerifiCodeButton);
  }

  /**
   * 通过findViewById,减少重复的类型转换
   *
   * @param id
   * @return
   */
  @SuppressWarnings("unchecked")
  public final <E extends View> E getView(int id) {
    try {
      return (E) findViewById(id);
    } catch (ClassCastException ex) {
      Log.e(TAG, "Could not cast View to concrete class.", ex);
      throw ex;
    }
  }

  private void initViews() {

    getVerifiCodeButton = getView(R.id.btn_send_verifi_code);
    getVerifiCodeButton.setOnClickListener(this);
    createAccountButton = getView(R.id.btn_create_account);
    createAccountButton.setOnClickListener(this);
    phoneEdit = getView(R.id.et_phone);
    phoneEdit.setImeOptions(EditorInfo.IME_ACTION_NEXT);// 下一步
    verifyCodeEdit = getView(R.id.et_verifiCode);
    verifyCodeEdit.setImeOptions(EditorInfo.IME_ACTION_NEXT);// 下一步
    nicknameEdit = getView(R.id.et_nickname);
    nicknameEdit.setImeOptions(EditorInfo.IME_ACTION_NEXT);
    passwordEdit = getView(R.id.et_password);
    passwordEdit.setImeOptions(EditorInfo.IME_ACTION_DONE);
    passwordEdit.setImeOptions(EditorInfo.IME_ACTION_GO);
    passwordEdit.setOnEditorActionListener(new OnEditorActionListener() {

      @Override
      public boolean onEditorAction(TextView v, int actionId,
                     KeyEvent event) {
        // 点击虚拟键盘的done
        if (actionId == EditorInfo.IME_ACTION_DONE
            || actionId == EditorInfo.IME_ACTION_GO) {
          try {
            commit();
          } catch (IOException | JSONException e1) {
            e1.printStackTrace();
          }
        }
        return false;
      }
    });
  }

  private void commit() throws IOException, JSONException {
    String phone = phoneEdit.getText().toString().trim();
    String password = passwordEdit.getText().toString().trim();

    if (checkInput(phone, password)) {
      // TODO:请求服务端注册账号
      createAccountButton.setOnClickListener(new OnClickListener() {

        @Override
        public void onClick(View arg0) {
          //android4.0后的新的特性，网络数据请求时不能放在主线程中。
          //使用线程执行访问服务器，获取返回信息后通知主线程更新UI或者提示信息。
          final Handler handler = new Handler() {
            @Override
            public void handleMessage(Message msg) {
              if (msg.what == 1) {
                //提示读取结果
                Toast.makeText(SignUpActivity.this, result, Toast.LENGTH_LONG).show();
                if (result.contains("成")){
                  Toast.makeText(SignUpActivity.this, result, Toast.LENGTH_LONG).show();
                  ToastUtils.showShort(SignUpActivity.this,
                      "注册成功......");
                }
                else{
                  final Intent it = new Intent(SignUpActivity.this, LoginActivity.class); //你要转向的Activity
                  Timer timer = new Timer();
                  TimerTask task = new TimerTask() {
                    @Override
                    public void run() {
                      startActivity(it); //执行
                    }
                  };
                  timer.schedule(task, 1000); //1秒后
                }
              }
            }
          };
          // 启动线程来执行任务
          new Thread() {
            public void run() {
              //请求网络
              try {
                Register(phoneEdit.getText().toString(),passwordEdit.getText().toString(),nicknameEdit.getText().toString());
              } catch (IOException | JSONException e) {
                e.printStackTrace();
              }
              Message m = new Message();
              m.what = 1;
              // 发送消息到Handler
              handler.sendMessage(m);
            }
          }.start();
        }
      });
    }
  }

  private boolean checkInput(String phone, String password) {
    if (TextUtils.isEmpty(phone)) { // 电话号码为空
      ToastUtils.showShort(this, R.string.tip_phone_can_not_be_empty);
    } else {
      if (!RegexUtils.checkMobile(phone)) { // 电话号码格式有误
        ToastUtils.showShort(this, R.string.tip_phone_regex_not_right);
      } else if (password == null || password.trim().equals("")) {
        Toast.makeText(this, R.string.tip_password_can_not_be_empty,
            Toast.LENGTH_LONG).show();
      }else if (password.length() < 6 || password.length() > 32
          || TextUtils.isEmpty(password)) { // 密码格式
        ToastUtils.showShort(this,
            R.string.tip_please_input_6_32_password);
      } else {
        return true;
      }
    }
    return false;
  }

  public Boolean Register(String account, String passWord, String niceName) throws IOException, JSONException {
    try {
      String httpUrl="http://cdz.ittun.cn/cdz/user_register.php";
      URL url = new URL(httpUrl);//创建一个URL
      HttpURLConnection connection = (HttpURLConnection)url.openConnection();//通过该url获得与服务器的连接
      connection.setDoOutput(true);
      connection.setDoInput(true);
      connection.setRequestMethod("POST");//设置请求方式为post
      connection.setConnectTimeout(3000);//设置超时为3秒
      //设置传送类型
      connection.setRequestProperty("Content-Type", "application/x-www-form-urlencoded");
      connection.setRequestProperty("Charset", "utf-8");
      //提交数据
      String data = "&name=" + URLEncoder.encode(niceName, "UTF-8")+"&cardid="
          + "&passwd=" +passWord+ "&money=0"+ "&number=" + account;//传递的数据
      connection.setRequestProperty("Content-Length",String.valueOf(data.getBytes().length));
      ToastUtils.showShort(this,
          "数据提交成功......");

      //获取输出流
      OutputStream os = connection.getOutputStream();
      os.write(data.getBytes());
      os.flush();
      //获取响应输入流对象
      InputStreamReader is = new InputStreamReader(connection.getInputStream());
      BufferedReader bufferedReader = new BufferedReader(is);
      StringBuffer strBuffer = new StringBuffer();
      String line = null;
      //读取服务器返回信息
      while ((line = bufferedReader.readLine()) != null){
        strBuffer.append(line);
      }
      result = strBuffer.toString();
      is.close();
      connection.disconnect();
    } catch (Exception e) {
      return true;
    }
    return false;
  }

  @Override
  public void onClick(View v) {
    switch (v.getId()) {
      case R.id.btn_send_verifi_code:
        // TODO 请求接口发送验证码
        codeManager.getVerifyCode(VerifyCodeManager.REGISTER);
        break;
      case R.id.btn_create_account:
        try {
          commit();
          } catch (IOException | JSONException e) {
          e.printStackTrace();
        }
        break;

      default:
        break;
    }
  }
}

登录功能的实现

登录功能需要在完成注册以后才能进行，只要提交账号、密码等信息至服务器，请求登录即可，至于第三方登录功能利用Mob平台的ShareSDK来实现。

LoginActivity.java

package com.example.administrator.loginandregister.activity;

import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.os.Handler;
import android.os.Message;
import android.text.TextUtils;
import android.text.method.HideReturnsTransformationMethod;
import android.text.method.PasswordTransformationMethod;
import android.view.KeyEvent;
import android.view.View;
import android.view.inputmethod.EditorInfo;
import android.widget.Button;
import android.widget.TextView;
import android.widget.Toast;

import com.example.administrator.loginandregister.R;
import com.example.administrator.loginandregister.global.AppConstants;
import com.example.administrator.loginandregister.utils.LogUtils;
import com.example.administrator.loginandregister.utils.ProgressDialogUtils;
import com.example.administrator.loginandregister.utils.RegexUtils;
import com.example.administrator.loginandregister.utils.ShareUtils;
import com.example.administrator.loginandregister.utils.SpUtils;
import com.example.administrator.loginandregister.utils.ToastUtils;
import com.example.administrator.loginandregister.utils.UrlConstance;
import com.example.administrator.loginandregister.utils.Utils;
import com.example.administrator.loginandregister.views.CleanEditText;
import com.umeng.socialize.bean.SHARE_MEDIA;
import com.umeng.socialize.controller.UMServiceFactory;
import com.umeng.socialize.controller.UMSocialService;
import com.umeng.socialize.controller.listener.SocializeListeners.UMAuthListener;
import com.umeng.socialize.controller.listener.SocializeListeners.UMDataListener;
import com.umeng.socialize.exception.SocializeException;

import org.json.JSONException;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.OutputStream;
import java.net.HttpURLConnection;
import java.net.URL;
import java.net.URLEncoder;
import java.util.Map;
import java.util.Timer;
import java.util.TimerTask;

import static android.view.View.OnClickListener;

/**
 * Created by JimCharles on 2016/11/27.
 */

public class LoginActivity extends Activity implements OnClickListener,UrlConstance {

  private static final String TAG = "loginActivity";
  private static final int REQUEST_CODE_TO_REGISTER = 0x001;

  // 界面控件
  private CleanEditText accountEdit;
  private CleanEditText passwordEdit;
  private Button loginButton;

  // 第三方平台获取的访问token，有效时间，uid
  private String accessToken;
  private String expires_in;
  private String uid;
  private String sns;

  String result = "";
  // 整个平台的Controller，负责管理整个SDK的配置、操作等处理
  private UMSocialService mController = UMServiceFactory
      .getUMSocialService(AppConstants.DESCRIPTOR);

  @Override
  protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_login);

    initViews();
    // 配置分享平台
    ShareUtils.configPlatforms(this);
  }

  /**
   * 初始化视图
   */
  private void initViews() {
    loginButton = (Button) findViewById(R.id.btn_login);
    loginButton.setOnClickListener(this);
    accountEdit = (CleanEditText) this.findViewById(R.id.et_email_phone);
    accountEdit.setImeOptions(EditorInfo.IME_ACTION_NEXT);
    accountEdit.setTransformationMethod(HideReturnsTransformationMethod
        .getInstance());
    passwordEdit = (CleanEditText) this.findViewById(R.id.et_password);
    passwordEdit.setImeOptions(EditorInfo.IME_ACTION_DONE);
    passwordEdit.setImeOptions(EditorInfo.IME_ACTION_GO);
    passwordEdit.setTransformationMethod(PasswordTransformationMethod
        .getInstance());
    passwordEdit.setOnEditorActionListener(new TextView.OnEditorActionListener() {

      @Override
      public boolean onEditorAction(TextView v, int actionId,
                     KeyEvent event) {
        if (actionId == EditorInfo.IME_ACTION_DONE
            || actionId == EditorInfo.IME_ACTION_GO) {
          clickLogin();
        }
        return false;
      }
    });
  }

  private void clickLogin() {
    String account = accountEdit.getText().toString();
    String password = passwordEdit.getText().toString();

    if (checkInput(account, password)) {
      // TODO: 请求服务器登录账号
//        Login(account,password);
      loginButton.setOnClickListener(new OnClickListener() {
        @Override
        public void onClick(View arg0) {
          //android4.0后的新的特性，网络数据请求时不能放在主线程中。
          //使用线程执行访问服务器，获取返回信息后通知主线程更新UI或者提示信息。
          final Handler handler = new Handler() {
            @Override
            public void handleMessage(Message msg) {
              if (msg.what == 1) {
                //提示读取结果
                Toast.makeText(LoginActivity.this, result, Toast.LENGTH_LONG).show();
                ToastUtils.showShort(LoginActivity.this,
                    result);
                if (result.contains("！")) {
                  Toast.makeText(LoginActivity.this, result, Toast.LENGTH_LONG).show();
                  ToastUtils.showShort(LoginActivity.this,
                      "密码错误......");
                } else {
                  final Intent it = new Intent(LoginActivity.this, WelcomActivity.class); //你要转向的Activity
                  Timer timer = new Timer();
                  TimerTask task = new TimerTask() {
                    @Override
                    public void run() {
                      startActivity(it); //执行
                    }
                  };
                  timer.schedule(task, 1000); //1秒后
                }
              }
            }
          };
          // 启动线程来执行任务
          new Thread() {
            public void run() {
              //请求网络
              try {
                Login(accountEdit.getText().toString(),passwordEdit.getText().toString());
              } catch (IOException | JSONException e) {
                e.printStackTrace();
              }
              Message m = new Message();
              m.what = 1;
              // 发送消息到Handler
              handler.sendMessage(m);
            }
          }.start();
        }
      });
      }
  }

  public Boolean Login(String account, String passWord) throws IOException, JSONException {
    try {
      String httpUrl="http://cdz.ittun.cn/cdz/user_login.php";
      URL url = new URL(httpUrl);//创建一个URL
      HttpURLConnection connection = (HttpURLConnection)url.openConnection();//通过该url获得与服务器的连接
      connection.setDoOutput(true);
      connection.setDoInput(true);
      connection.setRequestMethod("POST");//设置请求方式为post
      connection.setConnectTimeout(3000);//设置超时为3秒
      //设置传送类型
      connection.setRequestProperty("Content-Type", "application/x-www-form-urlencoded");
      connection.setRequestProperty("Charset", "utf-8");
      //提交数据
      String data = "&passwd=" + URLEncoder.encode(passWord, "UTF-8")+ "&number=" + URLEncoder.encode(account, "UTF-8")+ "&cardid=";//传递的数据
      connection.setRequestProperty("Content-Length",String.valueOf(data.getBytes().length));
      ToastUtils.showShort(this,
          "数据提交成功......");
      //获取输出流
      OutputStream os = connection.getOutputStream();
      os.write(data.getBytes());
      os.flush();
      //获取响应输入流对象
      InputStreamReader is = new InputStreamReader(connection.getInputStream());
      BufferedReader bufferedReader = new BufferedReader(is);
      StringBuffer strBuffer = new StringBuffer();
      String line = null;
      //读取服务器返回信息
      while ((line = bufferedReader.readLine()) != null){
        strBuffer.append(line);
      }
      result = strBuffer.toString();
      is.close();
      connection.disconnect();
    } catch (Exception e) {
      return true;
    }
    return false;
  }

  /**
   * 检查输入
   *
   * @param account
   * @param password
   * @return
   */
  public boolean checkInput(String account, String password) {
    // 账号为空时提示
    if (account == null || account.trim().equals("")) {
      Toast.makeText(this, R.string.tip_account_empty, Toast.LENGTH_LONG)
          .show();
    } else {
      // 账号不匹配手机号格式（11位数字且以1开头）
      if ( !RegexUtils.checkMobile(account)) {
        Toast.makeText(this, R.string.tip_account_regex_not_right,
            Toast.LENGTH_LONG).show();
      } else if (password == null || password.trim().equals("")) {
        Toast.makeText(this, R.string.tip_password_can_not_be_empty,
            Toast.LENGTH_LONG).show();
      } else {
        return true;
      }
    }
    return false;
  }

  @Override
  public void onClick(View v) {
    Intent intent = null;
    switch (v.getId()) {
      case R.id.iv_cancel:
        finish();
        break;
      case R.id.btn_login:
        clickLogin();
        break;
      case R.id.iv_wechat:
        clickLoginWexin();
        break;
      case R.id.iv_qq:
        clickLoginQQ();
        break;
      case R.id.iv_sina:
        loginThirdPlatform(SHARE_MEDIA.SINA);
        break;
      case R.id.tv_create_account:
        enterRegister();
        break;
      case R.id.tv_forget_password:
        enterForgetPwd();
        break;
      default:
        break;
    }
  }

  /**
   * 点击使用QQ快速登录
   */
  private void clickLoginQQ() {
    if (!Utils.isQQClientAvailable(this)) {
      ToastUtils.showShort(LoginActivity.this,
          getString(R.string.no_install_qq));
    } else {
      loginThirdPlatform(SHARE_MEDIA.QZONE);
    }
  }

  /**
   * 点击使用微信登录
   */
  private void clickLoginWexin() {
    if (!Utils.isWeixinAvilible(this)) {
      ToastUtils.showShort(LoginActivity.this,
          getString(R.string.no_install_wechat));
    } else {
      loginThirdPlatform(SHARE_MEDIA.WEIXIN);
    }
  }

  /**
   * 跳转到忘记密码
   */
  private void enterForgetPwd() {
    Intent intent = new Intent(this, ForgetPasswordActivity.class);
    startActivity(intent);
  }

  /**
   * 跳转到注册页面
   */
  private void enterRegister() {
    Intent intent = new Intent(this, SignUpActivity.class);
    startActivityForResult(intent, REQUEST_CODE_TO_REGISTER);
  }

  /**
   * 授权。如果授权成功，则获取用户信息
   *
   * @param platform
   */
  private void loginThirdPlatform(final SHARE_MEDIA platform) {
    mController.doOauthVerify(LoginActivity.this, platform,
        new UMAuthListener() {

          @Override
          public void onStart(SHARE_MEDIA platform) {
            LogUtils.i(TAG, "onStart------"
                + Thread.currentThread().getId());
            ProgressDialogUtils.getInstance().show(
                LoginActivity.this,
                getString(R.string.tip_begin_oauth));
          }

          @Override
          public void onError(SocializeException e,
                    SHARE_MEDIA platform) {
            LogUtils.i(TAG, "onError------"
                + Thread.currentThread().getId());
            ToastUtils.showShort(LoginActivity.this,
                getString(R.string.oauth_fail));
            ProgressDialogUtils.getInstance().dismiss();
          }

          @Override
          public void onComplete(Bundle value, SHARE_MEDIA platform) {
            LogUtils.i(TAG, "onComplete------" + value.toString());
            if (platform == SHARE_MEDIA.SINA) {
              accessToken = value.getString("access_key");
            } else {
              accessToken = value.getString("access_token");
            }
            expires_in = value.getString("expires_in");
            // 获取uid
            uid = value.getString(AppConstants.UID);
            if (!TextUtils.isEmpty(uid)) {
              // uid不为空，获取用户信息
              getUserInfo(platform);
            } else {
              ToastUtils.showShort(LoginActivity.this,
                  getString(R.string.oauth_fail));
            }
          }

          @Override
          public void onCancel(SHARE_MEDIA platform) {
            LogUtils.i(TAG, "onCancel------"
                + Thread.currentThread().getId());
            ToastUtils.showShort(LoginActivity.this,
                getString(R.string.oauth_cancle));
            ProgressDialogUtils.getInstance().dismiss();

          }
        });
  }

  /**
   * 获取用户信息
   *
   * @param platform
   */
  private void getUserInfo(final SHARE_MEDIA platform) {
    mController.getPlatformInfo(LoginActivity.this, platform,
        new UMDataListener() {

          @Override
          public void onStart() {
            // 开始获取
            LogUtils.i("getUserInfo", "onStart------");
            ProgressDialogUtils.getInstance().dismiss();
            ProgressDialogUtils.getInstance().show(
                LoginActivity.this, "正在请求...");
          }

          @Override
          public void onComplete(int status, Map<String, Object> info) {

            try {
              String sns_id = "";
              String sns_avatar = "";
              String sns_loginname = "";
              if (info != null && info.size() != 0) {
                LogUtils.i("third login", info.toString());

                if (platform == SHARE_MEDIA.SINA) { // 新浪微博
                  sns = AppConstants.SINA;
                  if (info.get(AppConstants.UID) != null) {
                    sns_id = info.get(AppConstants.UID)
                        .toString();
                  }
                  if (info.get(AppConstants.PROFILE_IMAGE_URL) != null) {
                    sns_avatar = info
                        .get(AppConstants.PROFILE_IMAGE_URL)
                        .toString();
                  }
                  if (info.get(AppConstants.SCREEN_NAME) != null) {
                    sns_loginname = info.get(
                        AppConstants.SCREEN_NAME)
                        .toString();
                  }
                } else if (platform == SHARE_MEDIA.QZONE) { // QQ
                  sns = AppConstants.QQ;
                  if (info.get(AppConstants.UID) == null) {
                    ToastUtils
                        .showShort(
                            LoginActivity.this,
                            getString(R.string.oauth_fail));
                    return;
                  }
                  sns_id = info.get(AppConstants.UID)
                      .toString();
                  sns_avatar = info.get(
                      AppConstants.PROFILE_IMAGE_URL)
                      .toString();
                  sns_loginname = info.get(
                      AppConstants.SCREEN_NAME)
                      .toString();
                } else if (platform == SHARE_MEDIA.WEIXIN) { // 微信
                  sns = AppConstants.WECHAT;
                  sns_id = info.get(AppConstants.OPENID)
                      .toString();
                  sns_avatar = info.get(
                      AppConstants.HEADIMG_URL)
                      .toString();
                  sns_loginname = info.get(
                      AppConstants.NICKNAME).toString();
                }

                // 这里直接保存第三方返回来的用户信息
                SpUtils.putBoolean(LoginActivity.this,
                    AppConstants.THIRD_LOGIN, true);

                LogUtils.e("info", sns + "," + sns_id + ","
                    + sns_loginname);

                // TODO: 这里执行第三方连接(绑定服务器账号）

              }
            } catch (Exception e) {
              e.printStackTrace();
            }
          }

        });
  }
}

忘记密码功能实现

到这一步其实大家都应该明白了，我用的都是最简单的方式去实现这些功能，就是通过提交数据给服务器，然后由服务器判断提交的数据是否正确，正确的话就返回注册信息，包含账号、密码等功能，然后对返回的数据进行操作，修改密码功能也是这样，修改返回数据中密码并重新提交给服务器，这个功能就完成了。

package com.example.administrator.loginandregister.activity;

import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.os.Handler;
import android.os.Message;
import android.text.TextUtils;
import android.util.Log;
import android.view.KeyEvent;
import android.view.View;
import android.view.inputmethod.EditorInfo;
import android.widget.Button;
import android.widget.TextView;
import android.widget.Toast;

import com.example.administrator.loginandregister.R;
import com.example.administrator.loginandregister.utils.RegexUtils;
import com.example.administrator.loginandregister.utils.ToastUtils;
import com.example.administrator.loginandregister.utils.VerifyCodeManager;
import com.example.administrator.loginandregister.views.CleanEditText;

import org.json.JSONException;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.OutputStream;
import java.net.HttpURLConnection;
import java.net.URL;
import java.util.Timer;
import java.util.TimerTask;

import static android.view.View.OnClickListener;

/**
 * Created by JimCharles on 2016/11/27.
 */

public class ForgetPasswordActivity extends Activity implements OnClickListener {
  private static final String TAG = "SignupActivity";
  // 界面控件
  private CleanEditText phoneEdit;
  private CleanEditText passwordEdit;
  private CleanEditText verifyCodeEdit;
  private Button getVerifiCodeButton;
  private Button resetButton;

  private VerifyCodeManager codeManager;

  String result = "";

  @Override
  protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_frogetpwd);

    initViews();
    codeManager = new VerifyCodeManager(this, phoneEdit, getVerifiCodeButton);
  }

  /**
   * 通用findViewById,减少重复的类型转换
   *
   * @param id
   * @return
   */
  @SuppressWarnings("unchecked")
  public final <E extends View> E getView(int id) {
    try {
      return (E) findViewById(id);
    } catch (ClassCastException ex) {
      Log.e(TAG, "Could not cast View to concrete class.", ex);
      throw ex;
    }
  }


  private void initViews() {

    resetButton = getView(R.id.btn_create_account);
    resetButton.setOnClickListener(this);
    getVerifiCodeButton = getView(R.id.btn_send_verifi_code);
    getVerifiCodeButton.setOnClickListener(this);
    phoneEdit = getView(R.id.et_phone);
    phoneEdit.setImeOptions(EditorInfo.IME_ACTION_NEXT);// 下一步
    verifyCodeEdit = getView(R.id.et_verifiCode);
    verifyCodeEdit.setImeOptions(EditorInfo.IME_ACTION_NEXT);// 下一步
    passwordEdit = getView(R.id.et_password);
    passwordEdit.setImeOptions(EditorInfo.IME_ACTION_DONE);
    passwordEdit.setImeOptions(EditorInfo.IME_ACTION_GO);
    passwordEdit.setOnEditorActionListener(new TextView.OnEditorActionListener() {

      @Override
      public boolean onEditorAction(TextView v, int actionId,
                     KeyEvent event) {
        // 点击虚拟键盘的done
        if (actionId == EditorInfo.IME_ACTION_DONE
            || actionId == EditorInfo.IME_ACTION_GO) {
          try {
            commit();
          } catch (IOException | JSONException e) {
            e.printStackTrace();
          }
        }
        return false;
      }
    });
  }

  private void commit() throws IOException, JSONException {
    String phone = phoneEdit.getText().toString().trim();
    String password = passwordEdit.getText().toString().trim();

    if (checkInput(phone, password)) {
      // TODO:请求服务端注册账号
      resetButton.setOnClickListener(new OnClickListener() {

        @Override
        public void onClick(View arg0) {
          //android4.0后的新的特性，网络数据请求时不能放在主线程中。
          //使用线程执行访问服务器，获取返回信息后通知主线程更新UI或者提示信息。
          final Handler handler = new Handler() {
            @Override
            public void handleMessage(Message msg) {
              if (msg.what == 1) {
                //提示读取结果
                Toast.makeText(ForgetPasswordActivity.this, result, Toast.LENGTH_LONG).show();
                if (result.contains("成")){
                  Toast.makeText(ForgetPasswordActivity.this, result, Toast.LENGTH_LONG).show();
                  ToastUtils.showShort(ForgetPasswordActivity.this,
                      "注册成功......");
                }
                else{
                  final Intent it = new Intent(ForgetPasswordActivity.this, LoginActivity.class); //你要转向的Activity
                  Timer timer = new Timer();
                  TimerTask task = new TimerTask() {
                    @Override
                    public void run() {
                      startActivity(it); //执行
                    }
                  };
                  timer.schedule(task, 1000); //1秒后
                }
              }
            }
          };
          // 启动线程来执行任务
          new Thread() {
            public void run() {
              //请求网络
              try {
                Register(phoneEdit.getText().toString(),passwordEdit.getText().toString());
              } catch (IOException | JSONException e) {
                e.printStackTrace();
              }
              Message m = new Message();
              m.what = 1;
              // 发送消息到Handler
              handler.sendMessage(m);
            }
          }.start();
        }
      });
    }
  }

  private boolean checkInput(String phone, String password) {
    if (TextUtils.isEmpty(phone)) { // 电话号码为空
      ToastUtils.showShort(this, R.string.tip_phone_can_not_be_empty);
    } else {
      if (!RegexUtils.checkMobile(phone)) { // 电话号码格式有误
        ToastUtils.showShort(this, R.string.tip_phone_regex_not_right);
      } else if (password.length() < 6 || password.length() > 32
          || TextUtils.isEmpty(password)) { // 密码格式
        ToastUtils.showShort(this,
            R.string.tip_please_input_6_32_password);
      } else {
        return true;
      }
    }
    return false;
  }

  public Boolean Register(String account, String passWord) throws IOException, JSONException {
    try {
      String httpUrl="http://cdz.ittun.cn/cdz/user_register.php";
      URL url = new URL(httpUrl);//创建一个URL
      HttpURLConnection connection = (HttpURLConnection)url.openConnection();//通过该url获得与服务器的连接
      connection.setDoOutput(true);
      connection.setDoInput(true);
      connection.setRequestMethod("POST");//设置请求方式为post
      connection.setConnectTimeout(3000);//设置超时为3秒
      //设置传送类型
      connection.setRequestProperty("Content-Type", "application/x-www-form-urlencoded");
      connection.setRequestProperty("Charset", "utf-8");
      //提交数据
      String data = "&cardid=" + "&passwd=" +passWord+ "&money=0"+ "&number=" + account;//传递的数据
      connection.setRequestProperty("Content-Length",String.valueOf(data.getBytes().length));
      ToastUtils.showShort(this,
          "数据提交成功......");

      //获取输出流
      OutputStream os = connection.getOutputStream();
      os.write(data.getBytes());
      os.flush();
      //获取响应输入流对象
      InputStreamReader is = new InputStreamReader(connection.getInputStream());
      BufferedReader bufferedReader = new BufferedReader(is);
      StringBuffer strBuffer = new StringBuffer();
      String line = null;
      //读取服务器返回信息
      while ((line = bufferedReader.readLine()) != null){
        strBuffer.append(line);
      }
      result = strBuffer.toString();
      is.close();
      connection.disconnect();

    } catch (Exception e) {
      return true;
    }
    return false;
  }

  @Override
  public void onClick(View v) {
    switch (v.getId()) {
      case R.id.iv_cancel:
        finish();
        break;
      case R.id.btn_send_verifi_code:
        // TODO 请求接口发送验证码
        codeManager.getVerifyCode(VerifyCodeManager.RESET_PWD);
        break;

      default:
        break;
    }
  }
}

记住密码和自动登录功能的实现

记住密码和自动登录功能可以通过SharedPreferences来实现

调用Context.getSharePreferences(String name, int mode)方法来得到SharePreferences接口，该方法的第一个参数是文件名称，第二个参数是操作模式。

操作模式有三种：MODE_PRIVATE(私有) ,MODE_WORLD_READABLE(可读),MODE_WORLD_WRITEABLE(可写)

SharePreference提供了获得数据的方法，如getString(String key,String defValue)等

调用SharePreferences的edit()方法返回 SharePreferences.Editor内部接口，该接口提供了保存数据的方法如： putString(String key,String value)等,调用该接口的commit()方法可以将数据保存。

这一部分还没有进行封装，简单的给大家介绍一下利用SharePreferences来实现记住密码和自动登陆

import android.content.Context;
import android.content.SharedPreferences;

 public class UserInfo {

   private String USER_INFO = "userInfo";

  private Context context;

   public UserInfo() {
   }

   public UserInfo(Context context) {

     this.context = context;
   }
   // 存放字符串型的值
   public void setUserInfo(String key, String value) {
     SharedPreferences sp = context.getSharedPreferences(USER_INFO,
         Context.MODE_PRIVATE);
    SharedPreferences.Editor editor = sp.edit();
     editor.remove(key);
     editor.putString(key, value);
     editor.commit();
   }

   // 存放整形的值
   public void setUserInfo(String key, int value) {
     SharedPreferences sp = context.getSharedPreferences(USER_INFO,
         Context.MODE_PRIVATE);
     SharedPreferences.Editor editor = sp.edit();
     editor.remove(key);
     editor.putInt(key, value);
     editor.commit();
  }

   // 存放长整形值
   public void setUserInfo(String key, Long value) {
     SharedPreferences sp = context.getSharedPreferences(USER_INFO,
         Context.MODE_PRIVATE);
     SharedPreferences.Editor editor = sp.edit();
     editor.remove(key);
     editor.putLong(key, value);
     editor.commit();
   }

   // 存放布尔型值
   public void setUserInfo(String key, Boolean value) {
     SharedPreferences sp = context.getSharedPreferences(USER_INFO,
         Context.MODE_PRIVATE);
     SharedPreferences.Editor editor = sp.edit();
     editor.remove(key);
     editor.putBoolean(key, value);
     editor.commit();
   }

  // 清空记录
   public void clear() {
     SharedPreferences sp = context.getSharedPreferences(USER_INFO,
         Context.MODE_PRIVATE);
     SharedPreferences.Editor editor = sp.edit();
     editor.clear();
     editor.commit();
   }

   // 注销用户时清空用户名和密码
   // public void logOut() {
   // SharedPreferences sp = context.getSharedPreferences(USER_INFO,
   // Context.MODE_PRIVATE);
   // SharedPreferences.Editor editor = sp.edit();
   // editor.remove(ACCOUNT);
   // editor.remove(PASSWORD);
   // editor.commit();
   // }

   // 获得用户信息中某项字符串型的值
   public String getStringInfo(String key) {
     SharedPreferences sp = context.getSharedPreferences(USER_INFO,
         Context.MODE_PRIVATE);
     return sp.getString(key, "");
   }

   // 获得用户息中某项整形参数的值
   public int getIntInfo(String key) {
     SharedPreferences sp = context.getSharedPreferences(USER_INFO,
         Context.MODE_PRIVATE);
     return sp.getInt(key, -1);
  }

   // 获得用户信息中某项长整形参数的值
   public Long getLongInfo(String key) {
     SharedPreferences sp = context.getSharedPreferences(USER_INFO,
         Context.MODE_PRIVATE);
     return sp.getLong(key, -1);
   }

   // 获得用户信息中某项布尔型参数的值
   public boolean getBooleanInfo(String key) {
     SharedPreferences sp = context.getSharedPreferences(USER_INFO,
         Context.MODE_PRIVATE);
     return sp.getBoolean(key, false);
   }

 }

public class MainActivity extends Activity {

   private Button login, cancel;

  private EditText usernameEdit, passwordEdit;

  private CheckBox CK_save, CK_auto;

  private UserInfo userInfo;

  private static final String USER_NAME = "user_name";
  private static final String PASSWORD = "password";
  private static final String ISSAVEPASS = "savePassWord";

  private String username;
  private String password;

  @Override
  protected void onCreate(Bundle savedInstanceState) {
     super.onCreate(savedInstanceState);
     setContentView(R.layout.activity_main);

     userInfo = new UserInfo(this);
     login = (Button) findViewById(R.id.login_btn);
     cancel = (Button) findViewById(R.id.unlogin_btn);
     usernameEdit = (EditText) findViewById(R.id.username);
     passwordEdit = (EditText) findViewById(R.id.password);
     CK_save = (CheckBox) findViewById(R.id.savePassword);
     CK_auto = (CheckBox) findViewById(R.id.autoLogin);
     // 判断是否记住了密码的 初始默认是要记住密码的
     if (userInfo.getBooleanInfo(ISSAVEPASS)) {
       CK_save.setChecked(true);
       usernameEdit.setText(userInfo.getStringInfo(USER_NAME));
       passwordEdit.setText(userInfo.getStringInfo(PASSWORD));
       // 判断是否要自动登陆
       if (userInfo.getBooleanInfo(AUTOLOGIN)) {
         // 默认是要自动登陆的
         CK_auto.setChecked(true);
         Intent i = new Intent();
         i.setClass(MainActivity.this, SecondActivity.class);
        startActivity(i);
       }

     }

     login.setOnClickListener(new Button.OnClickListener() {

       @Override
       public void onClick(View v) {
         username = usernameEdit.getText().toString();
         password = passwordEdit.getText().toString();
         if (username.equals("liang") && password.equals("123")) {
           if (CK_save.isChecked()) {
             userInfo.setUserInfo(USER_NAME, username);
             userInfo.setUserInfo(PASSWORD, password);
             userInfo.setUserInfo(ISSAVEPASS, true);
           }
           if (CK_auto.isChecked()) {
             userInfo.setUserInfo(AUTOLOGIN, true);

           }
           Intent i = new Intent();
           i.setClass(MainActivity.this, SecondActivity.class);
           startActivity(i);
         }

       }
     });

   }
 }

可见要实现记住密码和自动登录功能并不难，只要在登陆的XML布局文件添加两个Checkbar并对其进行设置，然后在Activity中进行简单的处理，就可以实现了。

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本文标题：Android实现登录注册功能封装

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