Android用户注册 Android实现简单用户注册案例

时间:2021-04-22 巫笙公子人气:0

目标： 设计一个用户注册案例。在主界面中对输入的手机号、密码、性别、爱好和城市后，可以在界面二中进行显示。

提示：

1、页面布局的元素用到TextView、EditText、Button、RadioButton、CheckBox、Spinner；
2、通过intent实现主界面跳转到界面二
3、涉及传递多个的数据时，使用Bundle对象作为容器，通过调用Bundle的putString先将数据存储到Bundle中，然后调用Intent的putExtras()方法将Bundle存入Intent中，然后获得Intent后，调用getExtras()获得Bundle容器，然后调用其getString获取对应的数据！

Bundle bundle=new Bundle();
bundle.putString("phone",phone_str);
bundle.putString("paswd",paswd_str);
bundle.putString("sex",sex_str);
bundle.putString("hobby",hobby_str);
bundle.putString("city",city_str);
//为意图追加额外的数据，意图原来已经具有的数据不会丢失，但key同名的数据会被替换
intent.putExtras(bundle);

//取得启动该Activity的Intent对象
 Intent intent=this.getIntent();
 Bundle bundle=intent.getExtras();
 /*取出Intent中附加的数据*/
 String phone=bundle.getString("phone");
 String paswd=bundle.getString("paswd");
 String sex=bundle.getString("sex");
 String hobby=bundle.getString("hobby");
 String city=bundle.getString("city");

界面显示如下：

实现如下：

activity_main.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
 xmlns:tools="http://schemas.android.com/tools"
 android:orientation="vertical"
 android:layout_width="match_parent"
 android:layout_height="match_parent"
 android:background="@drawable/img03"
 tools:context="com.example.jinjin.applicationtest4.MainActivity">

 <!--手机号-->
 <LinearLayout
 android:layout_width="368dp"
 android:layout_height="wrap_content"
 tools:layout_editor_absoluteY="0dp"
 android:orientation="horizontal"
 tools:layout_editor_absoluteX="8dp">
 <TextView
  android:layout_width="wrap_content"
  android:layout_height="40dp"
  android:textSize="18sp"
  android:textColor="@android:color/background_dark"
  android:text="手机号："/>
 <EditText
  android:id="@+id/phone"
  android:layout_width="match_parent"
  android:layout_height="50dp"
  android:inputType="phone"
  android:hint="请输入手机号"/>
 </LinearLayout>
 <!--密码-->
 <LinearLayout
 android:layout_width="368dp"
 android:layout_height="wrap_content"
 android:orientation="horizontal">
 <TextView
  android:layout_width="wrap_content"
  android:layout_height="40dp"
  android:textSize="18sp"
  android:textColor="@android:color/background_dark"
  android:text="密 码："/>
 <EditText
  android:id="@+id/paswd"
  android:layout_width="match_parent"
  android:layout_height="50dp"
  android:inputType="numberPassword"
  android:hint="请输入密码"/>
 </LinearLayout>
 <!--性别选择-->
 <RadioGroup
 android:id="@+id/sex"
 android:layout_width="match_parent"
 android:layout_height="40dp"
 android:orientation="horizontal">
 <RadioButton
  android:id="@+id/nan"
  android:layout_width="50dp"
  android:layout_height="wrap_content"
  android:checked="true"
  android:text="男"/>
 <RadioButton
  android:id="@+id/nv"
  android:layout_width="50dp"
  android:layout_height="wrap_content"
  android:text="女"/>
 </RadioGroup>
 <LinearLayout
 android:layout_width="match_parent"
 android:layout_height="wrap_content"
 android:orientation="horizontal">
 <CheckBox
  android:id="@+id/read_book"
  android:layout_width="wrap_content"
  android:layout_height="wrap_content"
  android:text="读书" />

 <CheckBox
  android:id="@+id/play_ball"
  android:layout_width="wrap_content"
  android:layout_height="wrap_content"
  android:text="打球" />
 <CheckBox
  android:id="@+id/music"
  android:layout_width="wrap_content"
  android:layout_height="wrap_content"
  android:text="听音乐" />
 </LinearLayout>
 <Spinner
 android:id="@+id/spinner"
 android:layout_width="match_parent"
 android:layout_height="wrap_content" />
 <Button
 android:id="@+id/register"
 android:layout_width="fill_parent"
 android:background="#3F51B5"
 android:textColor="#FFFFFF"
 android:textSize="18sp"
 android:text="注 册"
 android:layout_height="40dp" />
</LinearLayout>

activity_second.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
 android:orientation="vertical"
 android:layout_width="match_parent"
 android:background="@drawable/img03"
 android:layout_height="match_parent">
 <TextView
 android:id="@+id/show_content"
 android:layout_width="wrap_content"
 android:layout_height="wrap_content"
 android:layout_weight="1"
 android:textSize="17sp"
 android:layout_marginLeft="50dp"
 android:textColor="@android:color/black"
 android:text="TextView" />
</LinearLayout>

MainActivity.java

package com.example.jinjin.applicationtest4;

import android.content.Intent;
import android.os.Bundle;
import android.support.annotation.IdRes;
import android.support.v7.app.AppCompatActivity;
import android.view.View;
import android.widget.AdapterView;
import android.widget.ArrayAdapter;
import android.widget.Button;
import android.widget.CheckBox;
import android.widget.EditText;
import android.widget.RadioButton;
import android.widget.RadioGroup;
import android.widget.Spinner;

public class MainActivity extends AppCompatActivity implements View.OnClickListener,RadioGroup.OnCheckedChangeListener{
 //定义字符串用来保存各个信息
 private String phone_str="";
 private String paswd_str="";
 private String sex_str="男";
 private String hobby_str="1";
 private String city_str="";
 //组件定义
 EditText phone_edit,paswd_edit;
 RadioGroup sex_group;
 RadioButton nan_but,nv_but;
 CheckBox play,read,music;
 Button register;
 Spinner spinner;

 @Override
 protected void onCreate(Bundle savedInstanceState) {
 super.onCreate(savedInstanceState);
 setContentView(R.layout.activity_main);
 //初始化组件
 phone_edit = (EditText) findViewById(R.id.phone);
 paswd_edit=(EditText)findViewById(R.id.paswd);
 sex_group=(RadioGroup)findViewById(R.id.sex);
 //添加监听事件
 nan_but=(RadioButton)findViewById(R.id.nan);
 sex_group.setOnCheckedChangeListener(this);
 read=(CheckBox)findViewById(R.id.read_book);
 play=(CheckBox)findViewById(R.id.play_ball);
 music=(CheckBox)findViewById(R.id.music);
 register=(Button)findViewById(R.id.register);
 //添加监听事件
 register.setOnClickListener(this);
 spinner=(Spinner)findViewById(R.id.spinner);
  // 创建ArrayAdapter对象
 final String[] city=new String[]{"南宁","桂林","百色","柳州","玉林","河池"};
 ArrayAdapter<String> adapter=new ArrayAdapter<String>(this,android.R.layout.simple_list_item_1,city);
 spinner.setAdapter(adapter);
 //城市下拉单列表添加监听事件
 spinner.setOnItemSelectedListener(new Spinner.OnItemSelectedListener(){

  @Override
  public void onItemSelected(AdapterView<?> adapterView, View view, int i, long l) {
  city_str=city[i];
  }
  @Override
  public void onNothingSelected(AdapterView<?> adapterView) {
  //未选中状态
  }
 });
 }

 @Override
 public void onClick(View view) {
 switch (view.getId()){
  case R.id.register:
  //获取手机号和密码
  phone_str=phone_edit.getText().toString();
  paswd_str=paswd_edit.getText().toString();
  //获取兴趣爱好即复选框的值
  hobby_str="";//清除上一次已经选中的选项
  if (read.isChecked()){
   hobby_str+=read.getText().toString();
  }if(play.isChecked()){
  hobby_str+=play.getText().toString();
  }if(music.isChecked()){
  hobby_str+=music.getText().toString();
  }
  Intent intent=new Intent(this,SecondActivity.class);
  Bundle bundle=new Bundle();
  bundle.putString("phone",phone_str);
  bundle.putString("paswd",paswd_str);
  bundle.putString("sex",sex_str);
  bundle.putString("hobby",hobby_str);
  bundle.putString("city",city_str);
  intent.putExtras(bundle);
  startActivity(intent);
  break;
 }
 }

 @Override
 public void onCheckedChanged(RadioGroup radioGroup, @IdRes int i) {
 //根据用户选择来改变sex_str的值
 sex_str=i==R.id.nan?"男性":"女性";
 }
}

SecondActivity.java

package com.example.jinjin.applicationtest4;

import android.content.Intent;
import android.os.Bundle;
import android.support.annotation.Nullable;
import android.support.v7.app.AppCompatActivity;
import android.widget.TextView;

/**
 * Created by jinjin on 2020/5/23.
 */

public class SecondActivity extends AppCompatActivity {
 @Override
 protected void onCreate(@Nullable Bundle savedInstanceState) {
 super.onCreate(savedInstanceState);
 setContentView(R.layout.activity_second);
 Intent intent=this.getIntent();
 Bundle bundle=intent.getExtras();
 String phone=bundle.getString("phone");
 String paswd=bundle.getString("paswd");
 String sex=bundle.getString("sex");
 String hobby=bundle.getString("hobby");
 String city=bundle.getString("city");
 TextView show_text=(TextView)findViewById(R.id.show_content);
 show_text.setText("手机号为："+phone+"\n"+"密码为："+paswd+"\n"+"性别是："+sex+"\n"+"爱好是："+hobby+"\n"+"城市是："+city);
 }
}

巩固监听事件:如果要对register和spinne的监听事件改造方法，如何重新实现监听？

register可使用内部类,并重写onClick()方法。
spinner可使用实现接口的监听事件。

实现如下

package com.example.jinjin.applicationtest4;

import android.content.Intent;
import android.os.Bundle;
import android.support.annotation.IdRes;
import android.support.v7.app.AppCompatActivity;
import android.view.View;
import android.widget.AdapterView;
import android.widget.Button;
import android.widget.CheckBox;
import android.widget.EditText;
import android.widget.RadioButton;
import android.widget.RadioGroup;
import android.widget.Spinner;

public class MainActivity extends AppCompatActivity implements RadioGroup.OnCheckedChangeListener,AdapterView.OnItemSelectedListener{
 //定义字符串用来保存各个信息
 private String phone_str = "";
 private String paswd_str = "";
 private String sex_str = "男";
 private String hobby_str = "1";
 private String city_str = "";
 //组件定义
 EditText phone_edit, paswd_edit;
 RadioGroup sex_group;
 RadioButton nan_but, nv_but;
 CheckBox play, read, music;
 Button register;
 Spinner spinner;

 @Override
 protected void onCreate(Bundle savedInstanceState) {
 super.onCreate(savedInstanceState);
 setContentView(R.layout.activity_main);
 //初始化组件
 phone_edit = (EditText) findViewById(R.id.phone);
 paswd_edit = (EditText) findViewById(R.id.paswd);
 sex_group = (RadioGroup) findViewById(R.id.sex);
 //添加监听事件
 nan_but = (RadioButton) findViewById(R.id.nan);
 sex_group.setOnCheckedChangeListener(this);
 read = (CheckBox) findViewById(R.id.read_book);
 play = (CheckBox) findViewById(R.id.play_ball);
 music = (CheckBox) findViewById(R.id.music);
 register = (Button) findViewById(R.id.register);
 //添加监听事件
// register.setOnClickListener(this);
 spinner = (Spinner) findViewById(R.id.spinner);
  //直接new一个内部类对象作为参数 
 register.setOnClickListener(new mclick());


// final String[] city=new String[]{"南宁","桂林","百色","柳州","玉林","河池"};
// ArrayAdapter<String> adapter=new ArrayAdapter<String>(this,android.R.layout.simple_list_item_1,city);
// spinner.setAdapter(adapter);
// //城市下拉单列表添加监听事件
// spinner.setOnItemSelectedListener(new Spinner.OnItemSelectedListener(){
//  @Override
//  public void onItemSelected(AdapterView<?> adapterView, View view, int i, long l) {
//  city_str=city[i];
//  }
//  @Override
//  public void onNothingSelected(AdapterView<?> adapterView) {
//  }
// });

 //Spinner加载监听事件
 spinner.setOnItemSelectedListener(this);
 }

 @Override
 public void onItemSelected(AdapterView<?> adapterView, View view, int i, long l) {
 city_str=MainActivity.this.getResources().getStringArray(R.array.city)[i];
 }

 @Override
 public void onNothingSelected(AdapterView<?> adapterView) {

 }

 //定义一个内部类,实现View.OnClickListener接口,并重写onClick()方法 
 class mclick implements View.OnClickListener {

 @Override
 public void onClick(View view) {

  switch (view.getId()) {
  case R.id.register:
   //获取手机号和密码
   phone_str = phone_edit.getText().toString();
   paswd_str = paswd_edit.getText().toString();
   //获取兴趣爱好即复选框的值
   hobby_str = "";//清除上一次已经选中的选项
   if (read.isChecked()) {
   hobby_str += read.getText().toString();
   }
   if (play.isChecked()) {
   hobby_str += play.getText().toString();
   }
   if (music.isChecked()) {
   hobby_str += music.getText().toString();
   }
   Intent intent = new Intent(MainActivity.this, SecondActivity.class);
   Bundle bundle = new Bundle();
   bundle.putString("phone", phone_str);
   bundle.putString("paswd", paswd_str);
   bundle.putString("sex", sex_str);
   bundle.putString("hobby", hobby_str);
   bundle.putString("city", city_str);
   intent.putExtras(bundle);
   startActivity(intent);
   break;
  }
 }
 }

 @Override
 public void onCheckedChanged(RadioGroup radioGroup, @IdRes int i) {
 //根据用户选择来改变sex_str的值
 sex_str = i == R.id.nan ? "男性" : "女性";
 }
}

在res/values下编写一个：array.xml文件，内容如下：

<?xml version="1.0" encoding="utf-8"?>
<resources>
 <string-array name="city">
 <item>南宁</item>
 <item>桂林</item>
 <item>柳州</item>
 <item>百色</item>
 <item>河池</item>
 <item>玉林</item>
 </string-array>
</resources>

加载全部内容