团队冲刺——第六天

Posted 2021-02-27 hang-hang

今天学习了Activity的用法和Activity中使用fragment的方法，然后实战做了一下登陆注册功能。遇到困难在找到控件与保存数据方面不太懂。明天做出来完整登陆注册功能。

今天所写做对的登陆和注册功能：

package com.example.a15979.shudong;

import android.content.Intent;
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.util.Log;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.Toast;

import com.example.a15979.shudong.service.UserService;
import com.example.a15979.shudong.R;

public class LoginActivity extends AppCompatActivity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);//即activity_login.xml
        findViews();
    }
    private EditText username;
    private EditText password;
    private Button login;
    private Button register;

    private void findViews() {
        username=(EditText) findViewById(R.id.username);
        password=(EditText) findViewById(R.id.password);
        login=(Button) findViewById(R.id.login);
        register=(Button) findViewById(R.id.register);

        login.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                String name=username.getText().toString();
                System.out.println(name);
                String pass=password.getText().toString();
                System.out.println(pass);

                Log.i("TAG",name+"_"+pass);
                UserService uService=new UserService(LoginActivity.this);
                boolean flag=uService.login(name, pass);

                if(flag){
                    Log.i("TAG","登录成功");
                    Toast.makeText(LoginActivity.this, "登录成功", Toast.LENGTH_LONG).show();
                    Intent intent = new Intent(LoginActivity.this,RegisterActivity.class);
                    startActivity(intent);
                }else{
                    Log.i("TAG","登录失败");
                    Toast.makeText(LoginActivity.this, "登录失败", Toast.LENGTH_LONG).show();
                }
            }
        });
        register.setOnClickListener(new View.OnClickListener() {
            public void onClick(View v) {
                Intent intent=new Intent(LoginActivity.this,RegisterActivity.class);
                startActivity(intent);
            }
        });
    }
}


注册：

package com.example.a15979.shudong;

import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.util.Log;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.RadioButton;
import android.widget.RadioGroup;
import android.widget.Toast;

import com.example.a15979.shudong.service.UserService;
import com.example.a15979.shudong.R;

public class RegisterActivity extends AppCompatActivity {

    EditText username;
    EditText password;
    EditText age;
    RadioGroup sex;
    Button register;
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_register);
        findViews();
        register.setOnClickListener(new View.OnClickListener() {
            public void onClick(View v) {
                String name=username.getText().toString().trim();
                String pass=password.getText().toString().trim();

                Log.i("TAG",name+"_"+pass+"_");
                UserService uService=new UserService(RegisterActivity.this);
                User user=new User();
                user.setUsername(name);
                user.setPassword(pass);

                uService.register(user);
                Toast.makeText(RegisterActivity.this, "注册成功", Toast.LENGTH_LONG).show();
            }
        });
    }
    private void findViews() {
        username=(EditText) findViewById(R.id.usernameRegister);
        password=(EditText) findViewById(R.id.passwordRegister);

        register=(Button) findViewById(R.id.Register);
    }

}