本文實例為大家分享了Android實現簡單用戶注冊的具體代碼，供大家參考，具體內容如下

目標： 設計一個用戶注冊案例。在主界面中對輸入的手機號、密碼、性別、愛好和城市后，可以在界面二中進行顯示。

提示：

1、頁面布局的元素用到TextView、EditText、Button、RadioButton、CheckBox、Spinner；2、通過intent實現主界面跳轉到界面二3、涉及傳遞多個的數據時，使用Bundle對象作為容器，通過調用Bundle的putString先將數據存儲到Bundle中，然后調用Intent的putExtras()方法將Bundle存入Intent中，然后獲得Intent后， 調用getExtras()獲得Bundle容器，然后調用其getString獲取對應的數據！

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);//為意圖追加額外的數據，意圖原來已經具有的數據不會丟失，但key同名的數據會被替換intent.putExtras(bundle);

//取得啟動該Activity的Intent對象 Intent intent=this.getIntent(); Bundle bundle=intent.getExtras(); /*取出Intent中附加的數據*/ 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');

界面顯示如下：

實現如下：

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'> <!--手機號--> <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='手機號：'/> <EditText android: android:layout_width='match_parent' android:layout_height='50dp' android:inputType='phone' android:hint='請輸入手機號'/> </LinearLayout> <!--密碼--> <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 碼：'/> <EditText android: android:layout_width='match_parent' android:layout_height='50dp' android:inputType='numberPassword' android:hint='請輸入密碼'/> </LinearLayout> <!--性別選擇--> <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='讀書' /> <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='聽音樂' /> </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 冊' 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{ //定義字符串用來保存各個信息 private String phone_str=''; private String paswd_str=''; private String sex_str='男'; private String hobby_str='1'; private String city_str=''; //組件定義 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); //初始化組件 phone_edit = (EditText) findViewById(R.id.phone); paswd_edit=(EditText)findViewById(R.id.paswd); sex_group=(RadioGroup)findViewById(R.id.sex); //添加監聽事件 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); //添加監聽事件 register.setOnClickListener(this); spinner=(Spinner)findViewById(R.id.spinner); // 創建ArrayAdapter對象 final String[] city=new String[]{'南寧','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); //城市下拉單列表添加監聽事件 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) { //未選中狀態 } }); } @Override public void onClick(View view) { switch (view.getId()){ case R.id.register: //獲取手機號和密碼 phone_str=phone_edit.getText().toString(); paswd_str=paswd_edit.getText().toString(); //獲取興趣愛好即復選框的值 hobby_str='';//清除上一次已經選中的選項 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) { //根據用戶選擇來改變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('手機號為：'+phone+'n'+'密碼為：'+paswd+'n'+'性別是：'+sex+'n'+'愛好是：'+hobby+'n'+'城市是：'+city); }}

鞏固監聽事件:如果要對register和spinne的監聽事件改造方法，如何重新實現監聽？

實現如下

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{ //定義字符串用來保存各個信息 private String phone_str = ''; private String paswd_str = ''; private String sex_str = '男'; private String hobby_str = '1'; private String city_str = ''; //組件定義 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); //初始化組件 phone_edit = (EditText) findViewById(R.id.phone); paswd_edit = (EditText) findViewById(R.id.paswd); sex_group = (RadioGroup) findViewById(R.id.sex); //添加監聽事件 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); //添加監聽事件// register.setOnClickListener(this); spinner = (Spinner) findViewById(R.id.spinner); //直接new一個內部類對象作為參數 register.setOnClickListener(new mclick());// final String[] city=new String[]{'南寧','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);// //城市下拉單列表添加監聽事件// 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加載監聽事件 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) { } //定義一個內部類,實現View.OnClickListener接口,并重寫onClick()方法 class mclick implements View.OnClickListener { @Override public void onClick(View view) { switch (view.getId()) { case R.id.register: //獲取手機號和密碼 phone_str = phone_edit.getText().toString(); paswd_str = paswd_edit.getText().toString(); //獲取興趣愛好即復選框的值 hobby_str = '';//清除上一次已經選中的選項 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) { //根據用戶選擇來改變sex_str的值 sex_str = i == R.id.nan ? '男性' : '女性'; }}

在res/values下編寫一個：array.xml文件，內容如下：

<?xml version='1.0' encoding='utf-8'?><resources> <string-array name='city'> <item>南寧</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內容，希望對大家的學習有所幫助，也希望大家多多支持好吧啦網。