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package com.example.sparrownotes;
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import android.content.Intent;
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import android.os.Bundle;
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import android.text.method.HideReturnsTransformationMethod;
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import android.text.method.PasswordTransformationMethod;
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import android.view.View;
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import android.widget.Button;
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import android.widget.CheckBox;
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import android.widget.EditText;
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import android.widget.ImageView;
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import android.widget.TextView;
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import android.widget.Toast;
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import androidx.appcompat.app.AppCompatActivity;
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import com.example.sparrownotes.bean.UserBean;
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import com.example.sparrownotes.dao.UserDao;
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import com.example.sparrownotes.util.Constant;
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import com.example.sparrownotes.util.SharedPreferenceUtil;
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import java.util.List;
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import butterknife.BindView;
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import butterknife.ButterKnife;
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import butterknife.OnClick;
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/**
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* 登录页面
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* @author Horsen
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*/
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public class MainActivity extends AppCompatActivity {
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@BindView(R.id.img_icon)
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ImageView imgIcon;
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@BindView(R.id.check_auto_login)
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CheckBox checkAutoLogin;
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@BindView(R.id.check_remember_pwd)
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CheckBox checkRememberPwd;
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@BindView(R.id.text_forget_pwd)
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TextView textForgetPwd;
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@BindView(R.id.btn_login)
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Button btnLogin;
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@BindView(R.id.edit_username)
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EditText editUsername;
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@BindView(R.id.edit_password)
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EditText editPassword;
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@BindView(R.id.text_register)
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TextView textRegister;
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@BindView(R.id.check_hide_pwd)
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CheckBox checkHidePwd;
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private static final String TAG = "MainActivity";
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private UserDao userDao;
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private String textUserName;
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private String textPassword;
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private static boolean REMEMBER_PWD = false;
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private static boolean AUTO_LOGIN = false;
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SharedPreferenceUtil spu;
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@Override
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protected void onCreate(Bundle savedInstanceState) {
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super.onCreate(savedInstanceState);
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setContentView(R.layout.activity_main);
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ButterKnife.bind(this);
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userDao = new UserDao(this);
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spu = SharedPreferenceUtil.getInstance(this);
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}
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@Override
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protected void onStart() {
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super.onStart();
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Intent intent = getIntent();
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// 如果注册过
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if (intent.getBooleanExtra(Constant.HAS_REGISTERED, false)) {
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intent.removeExtra(Constant.HAS_REGISTERED);
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editUsername.setText(spu.getString(Constant.USER_NAME));
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editPassword.setText(spu.getString(Constant.PASSWORD));
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} else {
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// 如果勾选记住密码
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if (spu.getBoolean(Constant.REMEMBER_PWD)) {
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checkRememberPwd.setChecked(true);
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editUsername.setText(spu.getString(Constant.USER_NAME));
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editPassword.setText(spu.getString(Constant.PASSWORD));
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} else {
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editUsername.setText("");
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editPassword.setText("");
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}
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// 如果勾选自动登录
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if (spu.getBoolean(Constant.AUTO_LOGIN)) {
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checkAutoLogin.setChecked(true);
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Intent intentLogin = new Intent(MainActivity.this, HomeActivity.class);
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startActivity(intentLogin);
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}
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}
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}
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@OnClick({R.id.check_auto_login, R.id.check_remember_pwd, R.id.btn_login, R.id.text_forget_pwd, R.id.text_register, R.id.check_hide_pwd})
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public void onViewClicked(View view) {
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switch (view.getId()) {
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case R.id.check_auto_login:
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// 勾选自动登录时自动勾选记住密码
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if (checkAutoLogin.isChecked()) {
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checkRememberPwd.setChecked(true);
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AUTO_LOGIN = true;
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REMEMBER_PWD = true;
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} else {
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AUTO_LOGIN = false;
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}
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break;
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case R.id.check_remember_pwd:
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// 勾掉记住密码时自动勾掉自动登录
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if (!checkRememberPwd.isChecked()) {
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checkAutoLogin.setChecked(false);
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AUTO_LOGIN = false;
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REMEMBER_PWD = false;
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} else {
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REMEMBER_PWD = true;
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}
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break;
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case R.id.btn_login:
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// 检查非空
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if (isNotEmpty()) {
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// 获得用户输入
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getEditText();
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// 检查用户名密码
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if (checkUser()) {
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// 存入sp 用于接下来页面的显示
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spu.putBoolean(Constant.REMEMBER_PWD, REMEMBER_PWD);
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spu.putBoolean(Constant.AUTO_LOGIN, AUTO_LOGIN);
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spu.putString(Constant.USER_NAME, textUserName);
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spu.putString(Constant.PASSWORD, textPassword);
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spu.putInt(Constant.USER_ID, getUserID());
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Intent intentLogin = new Intent(MainActivity.this, HomeActivity.class);
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startActivity(intentLogin);
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finish();
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} else {
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Toast.makeText(this, "用户名或密码错误", Toast.LENGTH_SHORT).show();
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}
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} else {
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Toast.makeText(this, "用户名或密码不能为空", Toast.LENGTH_SHORT).show();
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}
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break;
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case R.id.text_forget_pwd:
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// 忘记密码
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Intent intentFind = new Intent(MainActivity.this, FindPwdActivity.class);
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startActivity(intentFind);
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break;
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case R.id.text_register:
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// 注册
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Intent intentRegister = new Intent(MainActivity.this, RegisterActivity.class);
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startActivity(intentRegister);
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break;
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case R.id.check_hide_pwd:
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if (checkHidePwd.isChecked()) {
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// 将密码显示出来
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editPassword.setTransformationMethod(HideReturnsTransformationMethod.getInstance());
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} else {
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// 隐藏密码
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editPassword.setTransformationMethod(PasswordTransformationMethod.getInstance());
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}
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// 将光标移动到文本最后
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editPassword.setSelection(editPassword.getText().toString().length());
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break;
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default:
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break;
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}
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}
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/**
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* 检验输入非空
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*
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* @return
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*/
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public boolean isNotEmpty() {
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return !"".equals(editUsername.getText().toString()) &&
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!"".equals(editPassword.getText().toString());
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}
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/**
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* 从控件中得到输入值
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*/
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public void getEditText() {
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textUserName = editUsername.getText().toString();
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textPassword = editPassword.getText().toString();
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}
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/**
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* 验证用户名密码
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*/
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public boolean checkUser() {
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List<UserBean> userBeans = userDao.queryByUserNameAndPassword(textUserName, textPassword);
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return userBeans.size() != 0;
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}
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/**
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* 获得用户ID
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*
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* @return
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*/
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public int getUserID() {
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List<UserBean> userBeans = userDao.queryByUserNameAndPassword(textUserName, textPassword);
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return userBeans.get(0).getUserID();
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}
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}
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