如何發送單選按鈕/收音機組的數據時使用抽球

Question

我正在爲我創建的應用程序做註冊表單。它包括名字，姓氏，電子郵件，電話號碼，密碼，出生日期和性別。廣播組中的性別，顯然使用單選按鈕。我正在使用Volley提供網絡數據。我如何使用volley傳遞選中的單選按鈕值？

這裏是我的Java代碼到目前爲止：

public class B_Register extends AppCompatActivity implements View.OnClickListener { 

public static final String REGISTER_URL = "http://10.0.0.245/register_alex's_app.php"; 

public static final String FNAME_REGISTER = "first_name"; 
public static final String LNAME_REGISTER = "last_name"; 
public static final String EMAIL_REGISTER = "email_register"; 
public static final String USERNAME_REGISTER = "username_register"; 
public static final String PHONE_NUMBER_REGISTER = "phone_register"; 
public static final String PASSWORD_REGISTER = "password_register"; 
public static final String BDAY_REGISTER = "bday_register"; 


private EditText fname; 
private EditText lname; 
private EditText email; 
private EditText phone_number; 
private EditText new_username; 
private EditText new_password; 
private EditText bday; 

private RadioGroup gender; 

private Button register_btn; 


@Override 
protected void onCreate(Bundle savedInstanceState) { 
    super.onCreate(savedInstanceState); 
    setContentView(R.layout.b_register); 

    fname = (EditText)findViewById(R.id.first_name_et); 
    lname = (EditText)findViewById(R.id.last_name_et); 
    email = (EditText)findViewById(R.id.email_et); 
    phone_number = (EditText)findViewById(R.id.phone_et); 
    new_username = (EditText)findViewById(R.id.username_et); 
    new_password = (EditText)findViewById(R.id.password_et); 
    bday = (EditText)findViewById(R.id.bday_et); 

    gender = (RadioGroup)findViewById(R.id.gender_register); 

    register_btn = (Button)findViewById(R.id.register_btn); 
    register_btn.setOnClickListener(this); 

} 

public void onTermsOfUseClick(View view) { 
} 

@Override 
public void onClick(View view) { 

    final String firstName = fname.getText().toString().trim(); 
    final String lastName = lname.getText().toString().trim(); 
    final String new_email = email.getText().toString().trim(); 
    final String newPhoneNumber = phone_number.getText().toString().trim(); 
    final String userName = new_username.getText().toString().trim(); 
    final String newPassword = new_password.getText().toString().trim(); 
    final String bDay = bday.getText().toString().trim(); 

    if(TextUtils.isEmpty(firstName)) { 
     fname.setError("Please enter your first name."); 
     return; 
    }else if(TextUtils.isEmpty(lastName)) { 
     lname.setError("Please enter your last name."); 
     return; 
    }else if(TextUtils.isEmpty(new_email)) { 
     email.setError("Please enter your email."); 
     return; 
    }else if(TextUtils.isEmpty(newPhoneNumber)) { 
     phone_number.setError("Please enter your phone number."); 
     return; 
    }else if(TextUtils.isEmpty(userName)) { 
     new_username.setError("Please enter a valid username, 5-25 characters."); 
     return; 
    }else if (TextUtils.isEmpty(newPassword)) { 
     new_password.setError("Please enter valid password, 5-15 characters."); 
    }else if (TextUtils.isEmpty(bDay)) { 
     bday.setError("Please enter your birth day."); 
    } 
} 
} 

Answer 1

要知道選擇RadioButton ID檢查：

// get selected radio button from radioGroup 
int selectedId = radioGroup.getCheckedRadioButtonId(); 
// find the radiobutton by returned id 
radioButton = (RadioButton) findViewById(selectedId); 
String radio_value = radioButton.getText(); //by this you will get the male or female text which will be used in sending to server. 

要使用Volley發送數據，添加依賴：

compile 'com.android.volley:volley:1.0.0' 

排球法將數據發送到服務器：

   try { 
       // initialize request to connect the server, via POST method and Server URl 
       StringRequest stringRequest = new StringRequest(Request.Method.POST, your_url, 
         new Response.Listener<String>() { 
          // catch JSON response from server 
          @Override 
          public void onResponse(final String response) { 
           // response from server 
          } 
         }, 

         // catch error response from server 
         new Response.ErrorListener() { 
          @Override 
          public void onErrorResponse(final VolleyError error) { 
           // trace error message from server 
          } 
         }){ 

        @Override 
        protected Map<String,String> getParams(){ 
         Map<String,String> params = new HashMap<String, String>(); 
         // map the string value, to send in server 
         params.put("name",string_value_of_name); 
         params.put("sex",string_value_of_sex); 
         .... //like more 
         return params; 
        } 
       }; 

       // execute the request 
       RequestQueue requestQueue = Volley.newRequestQueue(your_activity_context.this); 
       requestQueue.add(stringRequest); 

      }catch (final Exception e){ 
       //catch exception 
      } 

必須訪問鏈接查看更多細節Here

注：這個例子只是爲了演示目的，並不包含用戶詢問確切的答案，必須使用顯示過程中應用你的想法/邏輯。

Answer 2

直接訪問單選按鈕而不是radiogroup。

RadioButton male = (RadioButton) findViewById(R.id.male); 
boolean isMale = male.isChecked(); 

請記住標記您的單選按鈕。

<RadioGroup 
    android:id="@+id/gender_register" 
    android:layout_width="wrap_content" 
    android:layout_height="wrap_content" > 

    <RadioButton 
     android:id="@+id/male" 
     android:layout_width="wrap_content" 
     android:layout_height="wrap_content" 
     android:text="@string/radio_male" 
     android:checked="true" /> 

    <RadioButton 
     android:id="@+id/female" 
     android:layout_width="wrap_content" 
     android:layout_height="wrap_content" 
     android:text="@string/radio_female" /> 

</RadioGroup>