Android实现简单用户注册案例

本文实例为大家分享了Android实现简单用户注册的具体代码，供大家参考，具体内容如下

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: 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: 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: android:layout_width='match_parent' android:layout_height='40dp' android:orientation='horizontal'> <RadioButton android: android:layout_width='50dp' android:layout_height='wrap_content' android:checked='true' android:text='男'/> <RadioButton android: 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: android:layout_width='wrap_content' android:layout_height='wrap_content' android:text='读书' /> <CheckBox android: android:layout_width='wrap_content' android:layout_height='wrap_content' android:text='打球' /> <CheckBox android: android:layout_width='wrap_content' android:layout_height='wrap_content' android:text='听音乐' /> </LinearLayout> <Spinner android: android:layout_width='match_parent' android:layout_height='wrap_content' /> <Button android: 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: 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？

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>

以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持好吧啦网。