Preparing customized radio group type of layout

Question

I am trying to prepare custom radiogroup like layout in the below image. I have nearly 8-10 rows to do that. So, I prepared one linear layout which has horizontal orientation and added the imageview, textview and radiobutton programatically.

So if I check on one radio button, the other radio buttons should automatically unchecked. Before going to that task itself, I got another problem that if my radio buttons are checked once, then the radio button are not uncheckable though clicked on them. Below is my code.

public class MainActivity extends Activity{

RadioButton[] radioBtns = new RadioButton[10];

    String texts[] = {"text1", "text2", .... "text10"};

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);


        entireLayout = (LinearLayout)findViewById(R.id.main_layout);


        for(int i =0; i<10; i++)
        {
            LinearLayout rowLayout=new LinearLayout(this);
            radioBtns[i] = new RadioButton(this);

            radioBtns[i].setId(i);
            radioBtns[i].setOnCheckedChangeListener(cblistener);
            ImageView imageView = new ImageView(this);


            TextView tv = new TextView(this);
            tv.setText(texts[i]);

            rowLayout.addView(imageView);
            rowLayout.addView(tv);
                        rowLayout.addView(radioBtns[i]);

            entireLayout.addView(rowLayout);

                View line = new View(this); 
                line.setBackgroundColor(getResources().getColor(R.color.horizontallinecolor));
                entireLayout.addView(line, new ViewGroup.LayoutParams( ViewGroup.LayoutParams.MATCH_PARENT, 1));


        }
         }

CompoundButton.OnCheckedChangeListener cblistener = new CompoundButton.OnCheckedChangeListener()
    {
      public void onCheckedChanged(CompoundButton checkedbutton, boolean paramAnonymousBoolean)
      {

        switch (checkedbutton.getId())
        {

        case 0:
          Log.d("tag", "checked 0th position");

          break;
          ..........................
          ..........................
        }
      }
     };
}

I have observed through keeping logs. The control enters onCheckedChanged() for the first time when those are getting checked, but not when unchecked. I wonder how those are uncheckable.

OR According to my requirement I have one more idea to prepare this layout like I prepare one more layout for the row in xml. Then inflating the view 10 times. But then also, how can I check only one radio button so that other selected one gets unchecked. Can someone please suggest me how to achieve this kind of radiogroup through the best way?

Note: I have kept my above code because to show what I have tried. If it is completely wrong way, please go easy and please suggest me how to get that done.

Answer 1

In my experience is a little of a troublemaker to work with these kind of customized RadioGroups. I've prepared you some code that would be my approach to solve what you're trying to accomplish. Hope it works for you!

First you must call this function in your onCreate() (or wherever you're creating the views)

 private void addRadioButtons() {
    LinearLayout llGroup = (LinearLayout) findViewById(R.id.linearLayoutGroup);
    for(int i=0; i<10; i++){
        MyRadioButton mrb = new MyRadioButton(this);
        mrb.setText(String.valueOf(i));
        llGroup.addView(mrb.getView());
    }
}

The class should be

private static class MyRadioButton implements View.OnClickListener{

    private ImageView iv;
    private TextView tv;
    private RadioButton rb;
    private View view;

    public MyRadioButton(Context context) {

        view = View.inflate(context, R.layout.my_radio_button, null);
        rb = (RadioButton) view.findViewById(R.id.radioButton1);
        tv = (TextView) view.findViewById(R.id.textView1);
        iv = (ImageView) view.findViewById(R.id.imageView1);

        view.setOnClickListener(this);
        rb.setOnCheckedChangeListener(null);

    }


    public View getView() {
        return view;
    }

    @Override
    public void onClick(View v) {

        boolean nextState = !rb.isChecked();

        LinearLayout lGroup = (LinearLayout)view.getParent();
        if(lGroup != null){
            int child = lGroup.getChildCount();
            for(int i=0; i<child; i++){
                //uncheck all
                ((RadioButton)lGroup.getChildAt(i).findViewById(R.id.radioButton1)).setChecked(false);
            }
        }

        rb.setChecked(nextState);
    }

    public void setImage(Bitmap b){
        iv.setImageBitmap(b);
    }

    public void setText(String text){
        tv.setText(text);
    }

    public void setChecked(boolean isChecked){
        rb.setChecked(isChecked);
    }


}

And the xml to inflate, something like:

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:gravity="center_vertical"
    android:orientation="horizontal" >
    <ImageView
        android:id="@+id/imageView1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:src="@drawable/ic_launcher" />
    <TextView
        android:id="@+id/textView1"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_weight="1"
        android:text="Medium Text"
        android:textAppearance="?android:attr/textAppearanceMedium" />
    <RadioButton
        android:id="@+id/radioButton1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content" />
</LinearLayout>