CODEWITHSUNDEEP
android
casillas
casillas

Reputation: 16793

RadioButton check programmatically

I have the following radigroup in the xml

<RadioGroup
     android:layout_width="wrap_content"
     android:layout_height="wrap_content"
     android:layout_gravity="center_horizontal|bottom"
     android:orientation="horizontal"
     android:id="@+id/radiogroup">
  </RadioGroup>

and I am checking the number of objects in my json and generate radiobuttons and add them in the radiogroup as follows.

private void createRadioButton(int nImages) {
  final RadioButton[] rb = new RadioButton[nImages];
  for(int i=0; i<nImages; i++){
    rb[i] = new RadioButton(this);
    rb[i].setId(i);
    radioGroup.addView(rb[i]);
  }
}

now I need to know how to know and check selected radio button ?

when I was hardcoded, the following was working,

 radioGroup.check(R.id.radioButton0);

but now I am adding radio buttons programmatically, I do not know how to handle

 radioGroup.check(??);

Upvotes: 2

Views: 70

Answers (2)

Ankit Aggarwal
Ankit Aggarwal

Reputation: 5375

If you want to select radio button at a particular position in radiogroup, you can use 

radioGroup.check(radioGroup.getChildAt(position).getId());

where position is the position of the radio button in radio group

Upvotes: 2

Salah Nour ElDin
Salah Nour ElDin

Reputation: 508

you set id of radiobutton as index of array in this part of code rb[i].setId(i); you can use the following code radioGroup.check(i);

Upvotes: 1

Related Questions