Android的單選按鈕

Question

如果我有相同的文字和一組相同的屬性單選按鈕，如何找到哪個單選按鈕被選中？到處都在單選按鈕不同的文本例子

Answer 1

使用RadioGroup決定單選按鈕單擊的，就像這樣：

RadioGroup radioGroup = (RadioGroup) findViewById(R.id.yourRadioGroup);   
    radioGroup.setOnCheckedChangeListener(new OnCheckedChangeListener() 
    { 
     public void onCheckedChanged(RadioGroup group, int checkedId) { 
      // the radio button selected is checkedId 
     } 
    }); 

Answer 2

import android.app.Activity; 
    import android.os.Bundle; 
    import android.view.View; 
    import android.view.View.OnClickListener; 
    import android.widget.Button; 
    import android.widget.RadioButton; 
    import android.widget.RadioGroup; 
    import android.widget.Toast; 

public class RadioButtonExample extends Activity { 

      private RadioGroup radioSexGroup; 
      private RadioButton radioSexButton; 
      private Button btnDisplay; 

      @Override 
      public void onCreate(Bundle savedInstanceState) { 


       super.onCreate(savedInstanceState); 
       setContentView(R.layout.activity_radio_button_example); 

       addListenerOnButton(); 

      } 

      public void addListenerOnButton() { 

       radioSexGroup = (RadioGroup) findViewById(R.id.radioGender); 
       btnDisplay = (Button) findViewById(R.id.btnDisplay); 

       btnDisplay.setOnClickListener(new OnClickListener() { 

        @Override 
        public void onClick(View v) { 

         // get selected radio button from radioGroup 
         int selectedId = radioSexGroup.getCheckedRadioButtonId(); 

         // find the radiobutton by returned id 
         radioSexButton = (RadioButton) findViewById(selectedId); 

         Toast.makeText(RadioButtonExample.this, 
           radioSexButton.getText(), Toast.LENGTH_SHORT).show(); 

        } 

       }); 

      } 
} 

Answer 3

你需要組單選按鈕組下的單選按鈕確定按鈕選擇。這可以幫助你一個想法： http://developer.android.com/guide/topics/ui/controls/radiobutton.html