5月4号个人冲刺

　　今天是星期二所以今天又有建民的课，由于老师上课老是讲课，所以没有时间给我们编程，所以这次老师把时间交给了我们，这次主要还是进行编程，因为我对Android studio的使用还是不太熟悉，所以还是弄一下登录的基础操作吧。

　摘自(10条消息) Android实例开发中登录注册界面的框架实现（android studio）_不会游泳的程序猿-CSDN博客_android studio登录注册界面实现

    <TextView
        android:layout_marginTop="60dp"
        android:id="@+id/reg_number1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:padding="10dp"
        android:text="账号:"
        android:textColor="#000"
        android:textSize="20dp" />
    <EditText
        android:layout_alignBottom="@+id/reg_number1"
        android:layout_toRightOf="@+id/reg_number1"
        android:id="@+id/reg_username"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:padding="10dp" />
    <TextView
        android:id="@+id/reg_number2"
        android:layout_marginTop="5dp"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_below="@+id/reg_number1"
        android:padding="10dp"
        android:text="密码:"
        android:textColor="#000"
        android:textSize="20dp" />
    <EditText
        android:layout_alignBottom="@id/reg_number2"
        android:layout_toRightOf="@+id/reg_number2"
        android:id="@+id/reg_password"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:padding="10dp" />
    <TextView
        android:id="@+id/reg_number3"
        android:layout_marginTop="5dp"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_below="@+id/reg_number2"
        android:padding="10dp"
        android:text="密码:"
        android:textColor="#000"
        android:textSize="20dp" />
    <EditText
        android:layout_alignBottom="@id/reg_number3"
        android:layout_toRightOf="@+id/reg_number3"
        android:id="@+id/reg_password2"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:padding="10dp" />
    <TextView
        android:id="@+id/reg_number4"
        android:layout_marginTop="5dp"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_below="@+id/reg_number3"
        android:padding="10dp"
        android:text="邮箱:"
        android:textColor="#000"
        android:textSize="20dp" />
    <EditText
        android:layout_alignBottom="@id/reg_number4"
        android:layout_toRightOf="@+id/reg_number4"
        android:id="@+id/reg_mail"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:padding="10dp" />

    <Button
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="确定注册"
        android:background="#74e674"
        android:id="@+id/reg_btn_sure"
        android:layout_marginTop="38dp"
        android:layout_below="@+id/reg_mail"
        android:layout_marginLeft="50dp" />

    <Button
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="返回登录"
        android:background="#f27758"
        android:id="@+id/reg_btn_login"
        android:layout_alignBottom="@id/reg_btn_sure"
        android:layout_toRightOf="@id/reg_btn_sure"
        android:layout_marginLeft="60dp"
        />
    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="账号注册"
        android:textSize="30dp"
        android:layout_marginTop="5dp"
        android:layout_alignParentLeft="true"
        android:layout_alignParentStart="true" />
</RelativeLayout>

public class RegisterActivity extends AppCompatActivity {
    private EditText reg_username;
    private EditText reg_password;
    private EditText reg_password2;
    private EditText reg_mail;
    private Button reg_btn_sure;
    private Button reg_btn_login;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_register);
        reg_username = (EditText) findViewById(R.id.reg_username);
        reg_password = (EditText) findViewById(R.id.reg_password);
        reg_password2 = (EditText) findViewById(R.id.reg_password2);
        reg_mail = (EditText) findViewById(R.id.reg_mail);
        reg_btn_sure = (Button) findViewById(R.id.reg_btn_sure);
        reg_btn_login = (Button) findViewById(R.id.reg_btn_login);
        reg_btn_sure.setOnClickListener(new RegisterButton());
        reg_btn_login.setOnClickListener(new RegisterButton());
    }

    public class RegisterButton implements View.OnClickListener {
        @Override
        public void onClick(View v) {
            String username = reg_username.getText().toString().trim();
            String password = reg_password.getText().toString().trim();
            String password2 = reg_password2.getText().toString().trim();
            String mail = reg_mail.getText().toString().trim();
            switch (v.getId()) {
                //注册开始，判断注册条件
                case R.id.reg_btn_sure:
                    if (TextUtils.isEmpty(username) || TextUtils.isEmpty(password) || TextUtils.isEmpty(password2) || TextUtils.isEmpty(mail)) {
                        Toast.makeText(RegisterActivity.this, "各项均不能为空", Toast.LENGTH_SHORT).show();
                    } else {
                        if (TextUtils.equals(password, password2)) {
                            //执行注册操作
                            SaveInfo.SaveInformation(RegisterActivity.this,username,password,password2,mail);
                            Toast.makeText(RegisterActivity.this,"注册成功,请返回登录",Toast.LENGTH_SHORT).show();
                        } else {
                            Toast.makeText(RegisterActivity.this, "两次输入的密码不一样", Toast.LENGTH_SHORT).show();
                        }
                    }
                        break;
                        case R.id.reg_btn_login:
                            Intent intent = new Intent(RegisterActivity.this, MainActivity.class);
                            startActivity(intent);
                            break;

                    }
            }
        }
    }

public class RegisterActivity extends AppCompatActivity {
    private EditText reg_username;
    private EditText reg_password;
    private EditText reg_password2;
    private EditText reg_mail;
    private Button reg_btn_sure;
    private Button reg_btn_login;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_register);
        reg_username = (EditText) findViewById(R.id.reg_username);
        reg_password = (EditText) findViewById(R.id.reg_password);
        reg_password2 = (EditText) findViewById(R.id.reg_password2);
        reg_mail = (EditText) findViewById(R.id.reg_mail);
        reg_btn_sure = (Button) findViewById(R.id.reg_btn_sure);
        reg_btn_login = (Button) findViewById(R.id.reg_btn_login);
        reg_btn_sure.setOnClickListener(new RegisterButton());
        reg_btn_login.setOnClickListener(new RegisterButton());
    }

    public class RegisterButton implements View.OnClickListener {
        @Override
        public void onClick(View v) {
            String username = reg_username.getText().toString().trim();
            String password = reg_password.getText().toString().trim();
            String password2 = reg_password2.getText().toString().trim();
            String mail = reg_mail.getText().toString().trim();
            switch (v.getId()) {
                //注册开始，判断注册条件
                case R.id.reg_btn_sure:
                    if (TextUtils.isEmpty(username) || TextUtils.isEmpty(password) || TextUtils.isEmpty(password2) || TextUtils.isEmpty(mail)) {
                        Toast.makeText(RegisterActivity.this, "各项均不能为空", Toast.LENGTH_SHORT).show();
                    } else {
                        if (TextUtils.equals(password, password2)) {
                            //执行注册操作
                            SaveInfo.SaveInformation(RegisterActivity.this,username,password,password2,mail);
                            Toast.makeText(RegisterActivity.this,"注册成功,请返回登录",Toast.LENGTH_SHORT).show();
                        } else {
                            Toast.makeText(RegisterActivity.this, "两次输入的密码不一样", Toast.LENGTH_SHORT).show();
                        }
                    }
                        break;
                        case R.id.reg_btn_login:
                            Intent intent = new Intent(RegisterActivity.this, MainActivity.class);
                            startActivity(intent);
                            break;

                    }
            }
        }
    }

 <LinearLayout
        android:id="@+id/number"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_below="@+id/iv"
        android:layout_centerVertical="true"
        android:layout_marginBottom="5dp"
        android:layout_marginLeft="10dp"
        android:layout_marginRight="10dp"
        android:layout_marginTop="15dp"
        android:background="#ffffff">
        <TextView
            android:id="@+id/tv_number"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:padding="10dp"
            android:text="账号"
            android:textColor="#000"
            android:textSize="20dp" />
        <EditText
            android:id="@+id/et_username"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_marginLeft="5dp"
            android:background="@null"
            android:padding="10dp" />
    </LinearLayout>
    <LinearLayout
        android:id="@+id/password"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_below="@+id/number"
        android:layout_centerVertical="true"
        android:layout_marginLeft="10dp"
        android:layout_marginRight="10dp"
        android:background="#ffffff">
        <TextView
            android:id="@+id/tv_password"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:padding="10dp"
            android:text="密码"
            android:textSize="20dp"
            android:textColor="#000" />
        <EditText
            android:id="@+id/et_password"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_marginLeft="5dp"
            android:layout_toRightOf="@id/tv_password"
            android:background="@null"
            android:inputType="textPassword"
            android:padding="10dp" />
    </LinearLayout>
    <Button
        android:id="@+id/button_login"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_below="@id/password"
        android:layout_marginLeft="10dp"
        android:layout_marginRight="10dp"
        android:layout_marginTop="60dp"
        android:background="#3c8dc4"
        android:text="登录"
        android:textColor="#ffffff"
        android:textSize="20dp" />
    <Button
        android:id="@+id/button_register"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_below="@id/button_login"
        android:layout_marginLeft="10dp"
        android:layout_marginRight="10dp"
        android:layout_marginTop="30dp"
        android:background="#b7585556"
        android:text="注册"
        android:textColor="#ffffff"
        android:textSize="20dp" />

    <CheckBox
        android:checked="true"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="记住密码"
        android:id="@+id/checkBox"
        android:layout_below="@+id/password"
        android:layout_marginLeft="10dp"
        android:layout_marginTop="5dp"/>

　　

public class MainActivity extends AppCompatActivity {
    private EditText et_username;
    private EditText et_password;
    private EditText et_password2;
    private EditText et_mail;
    private Button btn_login;
    private Button btn_register;
    private CheckBox checkbox;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        Map<String, String> userInfo = SaveInfo.getSaveInformation(this);
        if (userInfo != null) {
            et_username.setText(userInfo.get("username"));
            et_password.setText(userInfo.get("password"));
        }
        et_username =(EditText) findViewById(R.id.et_username);
        et_password =(EditText) findViewById(R.id.et_password);
        et_password2 =(EditText) findViewById(R.id.reg_password2);
        et_mail = (EditText) findViewById(R.id.reg_mail);
        checkbox = (CheckBox) findViewById(R.id.checkBox);
        btn_login =(Button) findViewById(R.id.button_login);
        btn_register =(Button) findViewById(R.id.button_register);
        btn_login.setOnClickListener(new MyButton());
        btn_register.setOnClickListener(new MyButton());
                    }
    public  class MyButton implements View.OnClickListener{
        @Override
        public void onClick(View view){
            String username =et_username.getText().toString().trim();
            String password =et_password.getText().toString().trim();
            switch (view.getId()) {
                //当点击登录按钮时
                case R.id.button_login:
                    if(TextUtils.isEmpty(username) || TextUtils.isEmpty(password)){
                        Toast.makeText(MainActivity.this,"密码或账号不能为空",Toast.LENGTH_SHORT).show();
                    } else {
                        if(checkbox.isChecked()){
                            //保存密码的操作
                        }
                        Toast.makeText(MainActivity.this,"登录成功",Toast.LENGTH_SHORT).show();
                            Intent intent = new Intent(MainActivity.this, LoginActivity.class);
                            startActivity(intent);
                        }
                    break;
                //当点击注册按钮事件时
                case R.id.button_register:
                    Intent intent = new Intent(MainActivity.this,RegisterActivity.class);
                    startActivity(intent);
                    break;

            }
        }
    }
                }