安卓第六周作业

activity_main.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical"
    android:paddingTop="150sp"
    android:paddingLeft="80dp"
    android:background="@drawable/ic_launcher_foreground">

    //用户名文本框+输入框
    <LinearLayout
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:orientation="horizontal">
        <TextView
            android:layout_width="100sp"
            android:layout_height="wrap_content"
            android:text="用户名："
            android:textSize="20sp"/>
        <EditText
            android:id="@+id/et_user"
            android:layout_width="150dp"
            android:layout_height="wrap_content"
            android:hint="请输入用户名"
            android:textSize="20sp"/>
    </LinearLayout>

    //密码文本框+输入框
    <LinearLayout
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:orientation="horizontal">
        <TextView
            android:layout_width="100sp"
            android:layout_height="wrap_content"
            android:text="密   码： "
            android:textSize="20sp"/>
        <EditText
            android:id="@+id/et_password"
            android:layout_width="150dp"
            android:layout_height="wrap_content"
            android:hint="请输入密码"
            android:textSize="20sp"/>
    </LinearLayout>

    //单选按钮
    <LinearLayout
        android:layout_width="wrap_content"
        android:layout_height="wrap_content">
        <TextView
            android:layout_width="100sp"
            android:layout_height="wrap_content"
            android:text="性   别： "
            android:textSize="20sp"/>
        <RadioGroup
            android:id="@+id/rdg"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:orientation="horizontal">
            <RadioButton
                android:id="@+id/rb_man"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:text="男"
                android:textSize="20sp"
                android:textColor="#55F"/>
            <RadioButton
                android:id="@+id/rb_woman"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:text="女"
                android:textSize="20sp"
                android:textColor="#55F"/>
        </RadioGroup>
    </LinearLayout>

    //多选按钮
    <LinearLayout
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:orientation="vertical">
        <TextView
            android:layout_width="100sp"
            android:layout_height="wrap_content"
            android:text="爱   好： "
            android:textSize="20sp" />
        <CheckBox
            android:id="@+id/cb_basketball"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="篮球"
            android:textSize="20sp"
            android:layout_marginLeft="100sp"/>
        <CheckBox
            android:id="@+id/cb_football"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="足球"
            android:textSize="20sp"
            android:layout_marginLeft="100sp"/>
        <CheckBox
            android:id="@+id/cb_pingpong"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="乒乓球"
            android:textSize="20sp"
            android:layout_marginLeft="100sp"/>
    </LinearLayout>
    <Button
        android:id="@+id/btn_login"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="注册"
        android:textSize="20sp"
        android:layout_marginLeft="70dp"
        android:layout_marginTop="50dp"
        android:background="#E5F"
        android:onClick="onClick"/>

</LinearLayout>

MainActivity.java

package cn.itcast.directory;

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.RadioGroup;
import androidx.appcompat.app.AppCompatActivity;

public class MainActivity extends AppCompatActivity implements CompoundButton.OnCheckedChangeListener {
    //声明变量
    private EditText et_user, et_password;
    private RadioGroup rdg;
    private CheckBox cb_football,cb_pingpong,cb_basketball;

    private Intent intent;

    private String muser;
    private String mpassword;
    private String mrdg;
    private String mcb;


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

        mcb = new String();//存放从多选框的内容
    }
    //绑定控件
    private void init() {
        et_user = findViewById(R.id.et_user);
        et_password = findViewById(R.id.et_password);

        cb_football = findViewById(R.id.cb_football);
        cb_basketball = findViewById(R.id.cb_basketball);
        cb_pingpong = findViewById(R.id.cb_pingpong);
        cb_football.setOnCheckedChangeListener(this);
        cb_basketball.setOnCheckedChangeListener(this);
        cb_pingpong.setOnCheckedChangeListener(this);

        rdg = findViewById(R.id.rdg);

        //通过匿名内部类的形式为单选框注册监听
        rdg.setOnCheckedChangeListener(new RadioGroup.OnCheckedChangeListener() {
            @Override
            public void onCheckedChanged(RadioGroup group, int checkedId) {
                //判断被点击的RadioButton
                if (checkedId==R.id.rb_man){
                    mrdg = "男";
                }else {
                    mrdg = "女";
                }
            }
        });

    }
    //通过实现接口的形式为多选框组注册监听
    @Override
    public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
        String  motion = buttonView.getText().toString();
        if (isChecked){
            if (!mcb.contains(motion)){
                mcb = mcb + motion;
            }
        }else {
            if (mcb.contains(motion)){
                mcb = mcb.replace(motion,"");
            }
        }
    }

    //通过注册按钮的click属性实现点击事件
    public void onClick(View v) {
            if (v.getId()==R.id.btn_login){
                //获取用户名和密码
                muser = et_user.getText().toString();
                mpassword = et_password.getText().toString();
            }
            //通过Intent将用户名和密码、单选框内容和多选框内容，传递给secondActivity
            intent = new Intent(this,secondActivity.class);

            intent.putExtra("muser",muser);
            intent.putExtra("mpassword",mpassword);
            intent.putExtra("mrdg",mrdg);
            intent.putExtra("mcb",mcb);
            startActivity(intent);

    }
}

　　activity_second.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical">
    <TextView
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="你的信息为:"
        android:textSize="40sp"
        android:layout_marginTop="30sp"
        android:textColor="#FF83FA"/>
    <TextView
        android:id="@+id/tv_outData"
        android:layout_width="match_parent"
        android:paddingLeft="30sp"
        android:layout_height="650dp"
        android:text=""
        android:textSize="30sp"
        android:background="#F0FFFF"/>

</LinearLayout>

secondActivity.java

package cn.itcast.directory;

import android.annotation.SuppressLint;
import android.content.Intent;
import android.os.Bundle;
import android.widget.TextView;
import android.widget.Toast;

import androidx.appcompat.app.AppCompatActivity;

public class secondActivity extends AppCompatActivity {
    private TextView tv_outData;//存放传递的数据

    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_second);

        //接受MainActivity传递的数据
        Intent intent = getIntent();

        String user = intent.getStringExtra("muser");
        String password = intent.getStringExtra("mpassword");
        String mrdg = intent.getStringExtra("mrdg");
        String mcb = intent.getStringExtra("mcb");

        Toast.makeText(this,user+"\n"+password,Toast.LENGTH_SHORT).show();

        tv_outData = findViewById(R.id.tv_outData);
        tv_outData.setText("用户名："+user+"\n"+"密   码："+password+"\n"+"性   别："+mrdg+"\n"+"爱   好："+mcb);
    }
}