本文實例為大家分享了java實現簡單註冊選擇所在城市的全部代碼，供大家參考，具體內容如下
1.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="fill_parent" android:layout_height="fill_parent" > <TextView android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="用戶名：" /> <EditText android:id="@+id/user" android:minWidth="200px" android:layout_width="wrap_content" android:layout_height="wrap_content" /> <LinearLayout android:gravity="center_vertical" android:layout_width="match_parent" android:layout_height="wrap_content"> <TextView android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="性別：" /> <RadioGroup android:id="@+id/sex" android:orientation="horizontal" android:layout_width="wrap_content" android:layout_height="wrap_content"> <RadioButton android:id="@+id/radio0" android:layout_width="wrap_content" android:layout_height="wrap_content" android:checked="true" android:text="男"/> <RadioButton android:id="@+id/radio1" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="女"/> </RadioGroup> </LinearLayout><LinearLayout android:orientation="vertical" android:layout_width="wrap_content" android:layout_height="wrap_content"> <TextView android:id="@+id/textView1" android:text="請選擇所在城市：" android:layout_height="wrap_content" android:layout_width="wrap_content"/> <Spinner android:entries="@array/ctype" android:layout_height="wrap_content" android:layout_width="wrap_content" android:id="@+id/spinner1"/></LinearLayout> <TextView android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="密碼："/> <EditText android:id="@+id/pwd" android:minWidth="200px" android:inputType="textPassword" android:layout_width="wrap_content" android:layout_height="wrap_content" /> <TextView android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="確認密碼：" /> <EditText android:id="@+id/repwd" android:minWidth="200px" android:inputType="textPassword" android:layout_width="wrap_content" android:layout_height="wrap_content" /> <TextView android:id="@+id/textView3" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="E-mail地址：" /> <EditText android:id="@+id/email" android:minWidth="400px" android:layout_width="wrap_content" android:layout_height="wrap_content" /> <Button android:id="@+id/submit" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="提交" /> </LinearLayout>
2.register.xml
<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent" android:layout_height="match_parent" android:orientation="vertical" > <TextView android:id="@+id/user" android:layout_width="wrap_content" android:layout_height="wrap_content" android:padding="10px" android:text="用戶名：" /> <TextView android:id="@+id/sex" android:layout_width="wrap_content" android:layout_height="wrap_content" android:padding="10px" android:text="性別：" /> <TextView android:id="@+id/city" android:layout_width="wrap_content" android:layout_height="wrap_content" android:padding="10px" android:text="城市：" /> <TextView android:id="@+id/pwd" android:layout_width="wrap_content" android:layout_height="wrap_content" android:padding="10px" android:text="密碼：" /> <TextView android:id="@+id/email" android:padding="10px" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="E-mail：" /> <Button android:id="@+id/back" android:text="返回上一步" android:layout_width="wrap_content" android:layout_height="wrap_content" /> </LinearLayout>
3. MainActivity.java
package com.example.ejcker_llin.myapplication; import android.app.Activity;import android.content.Intent;import android.support.v7.app.AppCompatActivity;import android.os.Bundle;import android.view.View;import android.widget.AdapterView;import android.widget.Button;import android.widget.EditText;import android.widget.RadioButton;import android.widget.RadioGroup;import android.widget.Spinner;import android.widget.Toast; public class MainActivity extends Activity { private Button submit; private String sex1; private String city; final int code=0x717; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); submit= (Button) findViewById(R.id.submit); submit.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { String user=((EditText)findViewById(R.id.user)).getText().toString(); String pwd=((EditText)findViewById(R.id.pwd)).getText().toString(); String repwd=((EditText)findViewById(R.id.repwd)).getText().toString(); String email=((EditText)findViewById(R.id.email)).getText().toString(); RadioGroup sex= (RadioGroup) findViewById(R.id.sex); for(int i=0;i<sex.getChildCount();i++){ RadioButton r= (RadioButton) sex.getChildAt(i); if(r.isChecked()){ sex1=r.getText().toString(); break; } } Spinner spinner= (Spinner) findViewById(R.id.spinner1); spinner.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() { @Override public void onItemSelected(AdapterView<?> parent, View view, int position, long id) { city=parent.getItemAtPosition(position).toString(); } @Override public void onNothingSelected(AdapterView<?> parent) { } }); if(!"".equals(user)&&!"".equals(pwd)&&!"".equals(email)){ if(!pwd.equals(repwd)){ Toast.makeText(MainActivity.this,"兩次輸入的密碼不一致，請重新輸入！ ",Toast.LENGTH_LONG).show(); ((EditText) findViewById(R.id.pwd)).setText(""); ((EditText) findViewById(R.id.repwd)).setText(""); ((EditText) findViewById(R.id.pwd)).requestFocus(); }else { Intent intent=new Intent(MainActivity.this,RegisterAcivity.class); Bundle bundle=new Bundle(); bundle.putCharSequence("user",user); bundle.putCharSequence("sex",sex1); bundle.putCharSequence("city",city); bundle.putCharSequence("pwd",pwd); bundle.putCharSequence("email",email); intent.putExtras(bundle); //startActivity(intent); startActivityForResult(intent,code); } }else { Toast.makeText(MainActivity.this,"請將註冊信息輸入完整！",Toast.LENGTH_LONG).show(); } } }); }} 4. RegisterAcivity.java
package com.example.ejcker_llin.myapplication; import android.app.Activity;import android.content.Intent;import android.os.Bundle;import android.view.View;import android.widget.Button;import android.widget.TextView; /** * Created by Jcker_llin on 2016/4/5. */public class RegisterAcivity extends Activity{ @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.register); final Intent intent=getIntent(); Bundle bundle=intent.getExtras(); TextView user= (TextView) findViewById(R.id.user); user.setText("用戶名："+bundle.getString("user")); TextView sex= (TextView) findViewById(R.id.sex); sex.setText("性別："+bundle.getString("sex")); TextView city= (TextView) findViewById(R.id.city); city.setText("城市："+bundle.getString("city")); TextView pwd= (TextView) findViewById(R.id.pwd); pwd.setText("密碼："+bundle.getString("pwd")); TextView email= (TextView) findViewById(R.id.email); email.setText("E-mail："+bundle.getString("email")); Button button= (Button) findViewById(R.id.back); button.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { setResult(0x717,intent); finish(); } }); }}5.
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7. arrays.xml
<?xml version="1.0" encoding="utf-8"?><resources> <string-array name="ctype"> <item>北京</item> <item>上海</item> <item>廣州</item> <item>杭州</item> <item>天津</item> <item>香港</item> <item>重慶</item> <item>西安</item> <item>其他</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。