android APP新手示例源码

【核心代码】

package com.example.myapplication.MainInterface;

import android.annotation.SuppressLint;
import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.CheckBox;
import android.widget.CompoundButton;
import android.widget.EditText;
import android.widget.Toast;

import androidx.appcompat.app.AppCompatActivity;

import com.example.myapplication.CampusCenter.Pay.PayActivity;
import com.example.myapplication.R;

@SuppressLint("Registered")
public class logonActivity extends AppCompatActivity {
    private EditText inputAccount;
    private EditText inputPassword;
    private Button login;
    private CheckBox remember;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_logon);
        init();
        setLogin();
        setRemember();

    }
    //创建关于登录按钮的监听事件
    public void setLogin(){
        login.setOnClickListener( new View.OnClickListener( ) {
            @Override
            public void onClick(View v) {
                String account=inputAccount.getText().toString();
                String password=inputPassword.getText().toString();
                if(inputAccount.length()==0||inputPassword.length()==0)
                {
                    Toast.makeText(logonActivity.this,"账号密码不能为空",Toast.LENGTH_LONG).show();
                }
                else if("190301".equals(account)&&"12345".equals(password))
                {
                    Intent intent = new Intent(logonActivity.this, MainInterfaceActivity.class);
                    startActivity(intent);
                }
                else
                {Toast.makeText(logonActivity.this,"账号或密码错误",Toast.LENGTH_LONG).show();
                }
            }
        } );
    }
    public void setRemember() {
        remember.setOnCheckedChangeListener( new CompoundButton.OnCheckedChangeListener( ) {
            @Override
            public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
                if (isChecked){
                        Intent intent = new Intent(logonActivity.this,PayActivity.class);
                        intent.putExtra ( "displayName", inputAccount.getText().toString() );
                        intent.putExtra( "dispaySno",inputPassword.getText().toString() );
                }
            }
        } );
    }

    public void init(){
        login=findViewById(R.id.Login);
        inputAccount=findViewById( R.id.InputAccount );
        inputPassword=findViewById( R.id.InputPassword );
        remember=findViewById( R.id.checkBox1 );
    }
}