Implementation of the registration function of the Android login interface

Register a login interface and display the entered information text box in the console

xml interface design (issued earlier)

<?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"
    tools:context=".MainActivity"
    android:orientation="vertical"

    >
    <TextView
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="注册"
        android:textSize="35sp"
        android:gravity="center"
        android:background="#FF5722"
        />
<LinearLayout
    android:layout_width="wrap_content"
    android:layout_height="210dp"
    android:orientation="horizontal"
    >
 <Button
     android:layout_width="wrap_content"
     android:layout_height="wrap_content"
     android:background="@drawable/qq"
     android:layout_weight="1"
     android:text="用QQ注册"
     android:gravity="center"
     android:textSize="20sp"
     />
    <Button
        android:layout_width="wrap_content"
        android:layout_height="210dp"
        android:background="@drawable/wechat"
        android:layout_weight="1"
        android:text="用微信注册"
        android:textSize="20sp"
        />
</LinearLayout>
    <LinearLayout
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:orientation="horizontal"
        >
        <ImageView
            android:id="@+id/yxlg"
            android:layout_marginTop="12dp"
            android:layout_marginLeft="80dp"
            android:layout_width="30dp"
            android:layout_height="30dp"
            android:background="@drawable/net"
            />
   <TextView
       android:paddingTop="5dp"
       android:paddingBottom="5dp"
       android:id="@+id/yxld"
       android:layout_width="match_parent"
       android:layout_height="wrap_content"
       android:text="   用邮箱登录"
       android:gravity="center"
       android:textSize="35sp"
       />
    </LinearLayout>
    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="1dp"
        android:background="@color/colorAccent"
        >
    </LinearLayout>
    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:orientation="horizontal">
    <TextView
        android:paddingTop="12dp"
        android:layout_width="wrap_content"
        android:layout_height="60dp"
        android:text="名字："
        android:gravity="left"
        android:textSize="25sp"
        />
    <EditText
        android:id="@+id/mz"
        android:paddingTop="12dp"
        android:background="@null"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:textSize="30sp"

        />
    </LinearLayout>
    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="1dp"
        android:background="@color/colorAccent"
        >
</LinearLayout>
    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:orientation="horizontal">
        <TextView
            android:paddingTop="12dp"
            android:layout_width="wrap_content"
            android:layout_height="60dp"
            android:text="账号："
            android:gravity="left"
            android:textSize="25sp"
            />
        <EditText
            android:id="@+id/zh"
            android:paddingTop="12dp"
            android:background="@null"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:textSize="30sp"
            />
    </LinearLayout>
    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="1dp"
        android:background="@color/colorAccent"
        >
    </LinearLayout>
    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:orientation="horizontal">
        <TextView
            android:paddingTop="12dp"
            android:layout_width="wrap_content"
            android:layout_height="60dp"
            android:text="密码："
            android:gravity="left"
            android:textSize="25sp"
            />
        <EditText
            android:password="true"
            android:id="@+id/mm"
            android:paddingTop="12dp"
            android:background="@null"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:textSize="30sp"
            />
    </LinearLayout>
    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="1dp"
        android:background="@color/colorAccent"
        >
    </LinearLayout>
    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:orientation="horizontal">
        <TextView
            android:paddingTop="12dp"
            android:layout_width="wrap_content"
            android:layout_height="60dp"
            android:text="性别:        "
            android:gravity="left"
            android:textSize="25sp"
            />
        <RadioGroup
            android:id="@+id/xb"
            android:layout_marginTop="15dp"
            android:orientation="horizontal"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content">
        <RadioButton
            android:id="@+id/nan"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="男"
            android:textSize="20sp"
            />
<RadioButton
    android:id="@+id/nu"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:text="女"
    android:textSize="20sp"
    />
        </RadioGroup>
    </LinearLayout>
    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="1dp"
        android:background="@color/colorAccent"
        >
    </LinearLayout>
    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:orientation="horizontal">
        <TextView
            android:paddingTop="12dp"
            android:layout_width="wrap_content"
            android:layout_height="60dp"
            android:text="选择你的爱好："
            android:gravity="left"
            android:textSize="25sp"
            />
        <CheckBox
        android:id="@+id/cg"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="唱歌"
        android:textSize="20sp" />
        <CheckBox
            android:id="@+id/tw"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="跳舞"
            android:textSize="20sp" />
        <CheckBox
            android:id="@+id/ds"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="读书"
            android:textSize="20sp" />
    </LinearLayout>
    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="1dp"
        android:background="@color/colorAccent"
        >
    </LinearLayout>
    <Button
        android:id="@+id/btn1"
        android:layout_width="match_parent"
        android:layout_height="100dp"
        android:text="提交"
        android:textSize="30sp"
        />
</LinearLayout>

 

Registration function implementation

package com.example.registerlogin;

import androidx.appcompat.app.AppCompatActivity;

import android.os.Bundle;
import android.text.TextUtils;
import android.util.Log;
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 android.widget.Toast;


public class MainActivity extends AppCompatActivity implements View.OnClickListener,CompoundButton.OnCheckedChangeListener{
private EditText mz,zh,mm;
private Button btn1;
private String name,id,pwd,sex,hobby;
private RadioGroup xb;
private CheckBox cg,tw,ds;


    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        btn1=findViewById(R.id.btn1);
        mz=findViewById(R.id.mz);
        zh=findViewById(R.id.mz);
        mm=findViewById(R.id.mz);
        cg=findViewById(R.id.cg);
        tw=findViewById(R.id.tw);
        ds=findViewById(R.id.ds);
        xb=findViewById(R.id.xb);

        btn1.setOnClickListener(MainActivity.this);
        xb.setOnCheckedChangeListener(new RadioGroup.OnCheckedChangeListener() {
            @Override
            public void onCheckedChanged(RadioGroup radioGroup, int checkedId) {
                {switch (checkedId){
                    case R.id.nan:
                    sex = "男";
                    break;
                    case R.id.nu:
                    sex="女";
                    break;

                }
                }
            }
        });
    }
    private void getData(){
        name=mz.getText().toString().trim();
        id=zh.getText().toString().trim();
        pwd=mm.getText().toString().trim();
    }
     public void onClick(View v) {
         switch (v.getId()) {
             case R.id.btn1:
                 getData();

                 if (TextUtils.isEmpty(name)) {

                     Toast.makeText(MainActivity.this, "请输入名字", Toast.LENGTH_SHORT).show();
                 } else if (TextUtils.isEmpty(id)) {

                     Toast.makeText(MainActivity.this, "请输入账号", Toast.LENGTH_SHORT).show();
                 } else if (TextUtils.isEmpty(pwd)) {

                     Toast.makeText(MainActivity.this, "请输入密码", Toast.LENGTH_SHORT).show();
                 } else if (TextUtils.isEmpty(sex)) {

                     Toast.makeText(MainActivity.this, "请输入性别", Toast.LENGTH_SHORT).show();
                 }else if (TextUtils.isEmpty(hobby)) {

                     Toast.makeText(MainActivity.this, "请输入爱好", Toast.LENGTH_SHORT).show();
                 }else {
                     Toast.makeText(MainActivity.this, "注册成功", Log.i("MainActivity", "检测到你的注册信息：" + "名字：" + name + "  邮箱：" + id + "  性别：" + sex+"  爱好："+hobby));
                 }
                 break;
         }
     }

    public void onCheckedChanged(CompoundButton buttonView,boolean isChecked){
        String motion =buttonView.getText().toString();
        if(isChecked){
            if(!hobby.contains(motion)){
                hobby = hobby + motion;
            }
        }else {
            if(hobby.contains(motion)){

              hobby=hobby.replace(motion,"");
            }

        }
}

}

I have no input hobbies so console output null

 This code is relatively simple, xml uses some simple linear layout, and some changes to the position and id of the control, definition, the Java file uses the acquisition and output of the xml control, display! If you have any questions, please leave a message and I will reply as soon as possible.