android-radiogroup

I am having a recyclerview where each list item has a radiogroup with 4 radio buttons. How can I store the state of each radiogroup correctly. Here is my code. On scrolling up/down the states are incorrects. Thanks public class ElementListAdapter extends RecyclerView.Adapter<ElementListAdapter.ViewHolder> { private List<Element> elements = new ArrayList<>(); private Context context; private int[] state; public ElementListAdapter(Context context, List<Element> elements) { this.context = context; this.elements = elements; this.state = new int[elements.size()]; Arrays.fill(this.state, -1); }

Is there a way to set the selected index of a RadioGroup in android, other than looping through the child radiobuttons and selecting checking the radio button at the selected index? Note: I am populating the Radio Button Group at run time. jjm If your radio group is defined in a layout xml file, each button can be assigned an id. Then you just check a button like this radioGroup.check(R.id.myButtonId); If you created your radio group programmatically (I'm not even sure how you do this...), you might want to consider creating a special layout xml file just for the radio group so that you can

I was searching over the internet for how to perform the new cool android data-binding over the RadioGroup and I didn't find a single blog post about it. Its a simple scenario, based on the radio button selected, I want to attach a callback event using android data binding. I don't find any method on the xml part which allows me to define a callback. Like here is my RadioGroup: <RadioGroup android:id="@+id/split_type_radio" android:layout_width="match_parent" android:layout_height="wrap_content" android:layout_marginBottom="10dp" android:checkedButton="@+id/split_type_equal" android:gravity=

I am making a quiz app in which I have a viewPager which has 15 pages in it having 1 question each and a submit button at the last page.Now I want to get the Maximum number of option selected among 15 questions. Below is my code QuestionPagerFragment.java: public class QuestionPagerFragment extends Fragment { protected View mView; String pageData[]; //Stores the text to swipe. String optionData[];//Stores the option data. int rid; RadioGroup group; String ans; String ans1; String ans2; SharedPreferences prefs; public static final String MyPREFERENCES = "MyPrefs" ; @Nullable @Override public

I've created a radio button in radiogroup, but when I try running the apps all radio button can be selected all the time, and how to set only one radiobutton can be selected at one time? I'm using Fragment RadioGroup radioGroup = (RadioGroup) rootView.findViewById(R.id.RGroup); radioGroup.setOnCheckedChangeListener(new RadioGroup.OnCheckedChangeListener() { @Override public void onCheckedChanged(RadioGroup group, int checkedId) { // find which radio button is selected if(checkedId == R.id.Abdominal) { Toast.makeText(getActivity().getApplicationContext(), "choice: A", Toast.LENGTH_SHORT).show()

Any idea why this would crash my app when I select a radio button? I've imported android.widget.RadioGroup.OnCheckedChangeListener , and I've also tried new RadioGroup.OnCheckedChangeListener() which was the solution to a similar post. The code is (logcat added): RadioGroup ringtone_radio_group = (RadioGroup)findViewById(R.id.ringtone_radio_group); ringtone_radio_group.setOnCheckedChangeListener(new OnCheckedChangeListener() { @Override public void onCheckedChanged(RadioGroup group, int checkedId) { Toast.makeText(getApplicationContext(), "checked id = " + checkedId, Toast.LENGTH_SHORT).show()

I know this sound weird so here is the picture. It hold the correct value. The correct radiobutton is (partially) selected. All logic in the OnCheckedChangeListener is executed correctly. I'm completly stunned. Why is the radio button not fully checked? Only thing I can think of is that i'm using Rx2Firebase periodRetriever = FirebaseHelper.getInstance(getContext()).getPeriod() .defaultIfEmpty(0) .distinctUntilChanged() .subscribe(new Consumer<Integer>() { @Override public void accept(@NonNull Integer headerType) throws Exception { getRadioViewChecked(headerType).setChecked(true); } }); EDIT1

From my understanding, to determine if a checkbox is "clicked" and find if it's checked or not, code such as the following can be used: cb=(CheckBox)findViewById(R.id.chkBox1); cb.setOnCheckedChangeListener(this); public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) { if (isChecked) { cb.setText("This checkbox is: checked"); } else { cb.setText("This checkbox is: unchecked"); } } However, I am unable to work out the logic on how to do the above for a radiogroup. Here is the xml for my RadioGroup: <RadioGroup android:id="@+id/radioGroup1" android:layout_width="wrap_content