如何在运行时在android中仅选择一个复选框

Question

我想从四个复选框中选择一个复选框。 并将值保存在一个变量中。所有四个复选框都包含水平对齐的TextView。

Answer 1

可以用户单选组像你的活动这

Java代码

final RadioGroup radioGroup = (RadioGroup) cancelDialog.findViewById(R.id.cancle_booking_radio_group); 
    radioChangePlan = (RadioButton) cancelDialog.findViewById(R.id.radioChangePlan); 
    radioBetterDeal = (RadioButton) cancelDialog.findViewById(R.id.radioBetterDeal); 
    radioDiffHotel = (RadioButton) cancelDialog.findViewById(R.id.radioDiffHotel); 
    radioBookingMistake = (RadioButton) cancelDialog.findViewById(R.id.radioBookingMistake); 
    radioOther = (RadioButton) cancelDialog.findViewById(R.id.radioOther); 

    tvHideCancelDialog.setOnClickListener(new View.OnClickListener() { 
     @Override 
     public void onClick(View v) { 
      cancelDialog.dismiss(); 
     } 
    }); 
    radioGroup.setOnCheckedChangeListener(new RadioGroup.OnCheckedChangeListener() { 

     @Override 
     public void onCheckedChanged(RadioGroup group, int checkedId) { 

      View radioButton = radioGroup.findViewById(checkedId); 
      int index = radioGroup.indexOfChild(radioButton); 
      switch (index) { 
       case 0: 
        // first radio button selected 
        break; 
       case 1: 
        // second radio button selected 
        break; 
       case 2: 
        // third radio button selected 
        break; 
       case 3: 
        // forth radio button selected 
        break; 
       case 4: 
        // fifth radio button selected 
        break; 
      } 
     } 
    }); 

XML布局

 <RadioGroup 
     android:id="@+id/cancle_booking_radio_group" 
     android:layout_width="match_parent" 
     android:layout_height="wrap_content" 
     android:layout_marginTop="10dp"> 

     <RadioButton 
      android:id="@+id/radioChangePlan" 
      android:layout_width="match_parent" 
      android:layout_height="wrap_content" 
      android:buttonTint="@color/colorPrimary" 
      android:text="@string/change_in_plan" /> 

     <RadioButton 
      android:id="@+id/radioBetterDeal" 
      android:layout_width="match_parent" 
      android:layout_height="wrap_content" 
      android:buttonTint="@color/colorPrimary" 
      android:text="@string/found_a_better_deal" /> 

     <RadioButton 
      android:id="@+id/radioDiffHotel" 
      android:layout_width="match_parent" 
      android:layout_height="wrap_content" 
      android:buttonTint="@color/colorPrimary" 
      android:text="@string/want_to_book_a_differnt_hotel" /> 

     <RadioButton 
      android:id="@+id/radioBookingMistake" 
      android:layout_width="match_parent" 
      android:layout_height="wrap_content" 
      android:buttonTint="@color/colorPrimary" 
      android:text="@string/booking_created_by_mistake" /> 

     <RadioButton 
      android:id="@+id/radioOther" 
      android:layout_width="match_parent" 
      android:layout_height="wrap_content" 
      android:buttonTint="@color/colorPrimary" 
      android:text="@string/other" /> 


    </RadioGroup>