<?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">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="用户名:"
android:textSize="25sp"
android:layout_marginLeft="25dp"
/>
<EditText
android:id="@+id/username"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:hint="用户名长度不小于8"
android:layout_marginLeft="10dp"/>
</LinearLayout>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="密码:"
android:textSize="25sp"
android:layout_marginLeft="50dp"
/>
<EditText
android:id="@+id/password"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:hint="请输入6到16位的密码"
android:layout_marginLeft="10dp"/>
</LinearLayout>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="重复密码:"
android:textSize="25sp"
/>
<EditText
android:id="@+id/repassword"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:hint="请重新输入密码"
android:layout_marginLeft="10dp"/>
</LinearLayout>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="性别:"
android:textSize="25sp"
android:layout_marginLeft="50dp"/>
<RadioGroup
android:id="@+id/rdg"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="horizontal"
>
<RadioButton
android:id="@+id/rbtn"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="男"
android:textSize="25sp"
android:layout_marginLeft="10dp"/>
<RadioButton
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:text="女"
android:textSize="25sp"
android:layout_marginLeft="10dp"/>
</RadioGroup>
</LinearLayout>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="爱好:"
android:textSize="25sp"
android:layout_marginLeft="50dp"
/>
<Button
android:id="@+id/bt1"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="请选择"
android:layout_marginLeft="10dp"/>
</LinearLayout>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="籍贯:"
android:textSize="25sp"
android:layout_marginLeft="50dp"
/>
<Button
android:id="@+id/bt2"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="请选择"
android:layout_marginLeft="10dp"/>
</LinearLayout>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal"
android:gravity="center">
<Button
android:id="@+id/bt3"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_margin="5dp"
android:text="注册" />
<Button
android:id="@+id/bt4"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_margin="5dp"
android:text="取消" />
/>
</LinearLayout>
</LinearLayout>
Java代码：
package com.example.myapplication; import androidx.appcompat.app.AlertDialog; import androidx.appcompat.app.AppCompatActivity; import android.app.Dialog; import android.content.DialogInterface; import android.os.Bundle; import android.view.View; import android.widget.Button; import android.widget.EditText; import android.widget.RadioGroup; import android.widget.Toast; import java.security.acl.Group; import java.text.BreakIterator; public class MainActivity extends AppCompatActivity implements View.OnClickListener{ private EditText username; private EditText password; private EditText repassword; private CharSequence[] items1=new CharSequence[]{ "旅游", "美食", "看电影", "运动" }; private CharSequence[] items2=new CharSequence[]{ "中国大陆", "中国香港", "中国澳门", "中国台湾","其他" }; private boolean[] checkedItems1=new boolean[]{
false,false,false,false}; private int checkedItems2=1; private String text=""; private RadioGroup rdg; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); findViewById(R.id.bt1).setOnClickListener(this); findViewById(R.id.bt2).setOnClickListener(this); findViewById(R.id.bt3).setOnClickListener(this); findViewById(R.id.bt4).setOnClickListener(this); rdg=findViewById(R.id.rdg); rdg.setOnCheckedChangeListener(new RadioGroup.OnCheckedChangeListener() { @Override public void onCheckedChanged(RadioGroup group, int checkedId) { if(checkedId==R.id.rbtn){ text="男"; } else { text ="女"; } } }); } @Override public void onClick(View v) { AlertDialog dialog; AlertDialog.Builder builder; switch (v.getId()){ case R.id.bt1: builder=new AlertDialog.Builder(this) .setTitle("请添加兴趣爱好：") .setIcon(R.mipmap.ic_launcher) .setMultiChoiceItems(items1, checkedItems1, new DialogInterface.OnMultiChoiceClickListener() { @Override public void onClick(DialogInterface dialog, int which, boolean isChecked) { checkedItems1[which]=isChecked; } }) .setPositiveButton("确定", new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialog, int which) { StringBuffer stringBuffer=new StringBuffer(); for(int i=0;i<=checkedItems1.length-1;i++){ if(checkedItems1[i]){ stringBuffer.append(items1[i]).append(""); } } ((Button)findViewById(R.id.bt1)).setText(stringBuffer); dialog.dismiss(); } }).setNegativeButton("取消", new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialog, int which) { dialog.dismiss(); } }); dialog=builder.create(); dialog.show(); break; case R.id.bt2: builder=new AlertDialog.Builder(this) .setTitle("请选择籍贯：") .setIcon(R.mipmap.ic_launcher) .setSingleChoiceItems(items2,checkedItems2,new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialog, int which) { checkedItems2 = which; } }) .setPositiveButton("确定", new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialog, int which) { StringBuffer stringBuffer=new StringBuffer(); for(int i=0;i<=items2.length-1;i++){ ((Button) findViewById(R.id.bt2)).setText(items2[checkedItems2]); } if(stringBuffer!=null){ Toast.makeText(MainActivity.this,""+stringBuffer, Toast.LENGTH_SHORT).show(); } dialog.dismiss(); } }).setNegativeButton("取消", new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialog, int which) { dialog.dismiss(); } }); dialog=builder.create(); dialog.show(); break; case R.id.bt3: username = (EditText) findViewById(R.id.username); password = (EditText) findViewById(R.id.password); repassword = (EditText) findViewById(R.id.repassword); Toast.makeText(MainActivity.this, "注册成功！"+"\n" +"用户名："+username.getText()+"\n" +"密码："+password.getText()+"\n" +"性别："+text+"\n" +"爱好："+((Button) findViewById(R.id.bt1)).getText()+"\n" +"籍贯："+((Button) findViewById(R.id.bt2)).getText()+"\n",Toast.LENGTH_SHORT).show(); break; case R.id.bt4: Toast.makeText(MainActivity.this,"点击事件2",Toast.LENGTH_SHORT).show(); break; } } }
页面实现：
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