I want to add radiobutton programatically and set first item being selected?

Here is my code which I created bunch of radio buttons from my Json.

for (int i = 0; i < level_array_list.size(); i++)
RadioButton radioButton = new RadioButton(getActivity());
radioButton.setText(level_array_list.get(i).getLevelName());
radioButton.setId(Integer.parseInt(level_array_list.get(i).getLevel_id()));
radioGrp.addView(radioButton);



Please help. Thanks in advance!

i am stucked here

2 Answers
2

i want to be selected first item which is loaded from json array ?

You need to use radioButton.setChecked(true); inside loop when i = 0 (means first radio button)

radioButton.setChecked(true);

i = 0

Try this

for (int i = 0; i < level_array_list.size(); i++)
RadioButton radioButton = new RadioButton(getActivity());
radioButton.setText(level_array_list.get(i).getLevelName());
radioButton.setId(Integer.parseInt(level_array_list.get(i).getLevel_id()));
if(i==0)
radioButton.setChecked(true);

radioGrp.addView(radioButton);



Try this code. This will checked the first item. Hope it helps!

ArrayList<RadioButton> radioButtonsList = new ArrayList<>();

for (int i = 0; i < level_array_list.size(); i++)
RadioButton radioButton = new RadioButton(getActivity());
radioButton.setText(level_array_list.get(i).getLevelName());
radioButton.setId(Integer.parseInt(level_array_list.get(i).getLevel_id()));
radioButtonsList.add(radioButton);
radioGrp.addView(radioButton);


RadioButton radioButton = radioButtonsList.get(0);
radioButton.setChecked(true);


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