Whne i call this radiogroupId.clearCheck() this method recall radiogroup click listener

Question

Details: I have 2 radio groups with some radio buttons.

What i want: User only select one radio button from 2 groups.

What i have done:

 rgOne.setOnCheckedChangeListener(RadioGroup.OnCheckedChangeListener { group, checkedId ->
            try {
                val checkedRadioButtonId: Int = rgOne.checkedRadioButtonId
                if (checkedRadioButtonId != null) {
                    oneItem = oneList[checkedRadioButtonId]
                    healthy = oneItem.code!!
                    AppGlobal.displayShortToast(
                        this, "You selected: " + oneItem.title
                    )
                    if (rgTwo.checkedRadioButtonId != -1) {
                       rgTwo.clearCheck()

                    }
                }
            } catch (e: Exception) {
                e.printStackTrace()
            }


        })

        
        rgTwo.setOnCheckedChangeListener(RadioGroup.OnCheckedChangeListener { group, checkedId ->
            try {
                val checkedRadioButtonId: Int = rgTwo.checkedRadioButtonId
                if (checkedRadioButtonId != null) {
                    twoItem = twoList[checkedRadioButtonId]
                    unhealthy = twoItem.code!!
                    AppGlobal.displayShortToast(
                        this, "You selected: " + twoItem.title
                    )
                    if (rgOne.checkedRadioButtonId != -1) {
                     rgOne.clearCheck()

                    }
                }
            } catch (e: Exception) {
                e.printStackTrace()
            }

        })

Facing the issue: When i call this rgOne.clearCheck() OR rgTwo.clearCheck() ,call whole radio group clicked listener agin and uncheck what i checked. working perfect for first time like when nothig is selected.

What is wrong with this code and what i need to change.

score 0 · Accepted Answer · answered Nov 04 '20 at 11:19

Calling this line once, inside onCreate() of Activity or onCreateView() of Fragment:

   rgOne.setOnCheckedChangeListener(onCheckedChangeListener)
   rgTwo.setOnCheckedChangeListener(onCheckedChangeListener)

Declare this variable:

private val onCheckedChangeListener =  
    RadioGroup.OnCheckedChangeListener { group, checkedId ->
        if (group!!.id == R.id.rgOne) {
            try {
                AppLog.e("Call healthy")
                val checkedRadioButtonId: Int = rgOne.checkedRadioButtonId
                if (checkedRadioButtonId != null) {
              
                    if (rgTwo.checkedRadioButtonId != -1) {
                        resetRadioGroup(rgTwo)
                        
                    }


                }
            } catch (e: Exception) {
                e.printStackTrace()
            }

        } else {
            try {
                AppLog.e("Call Unhealthy")
                val checkedRadioButtonId: Int = rgTwo.checkedRadioButtonId
                if (checkedRadioButtonId != null) {
                   
                    if (rgOne.checkedRadioButtonId != -1) {
                        resetRadioGroup(rgOne)
                        
                    }


                }
            } catch (e: Exception) {
                e.printStackTrace()
            }

        }

    }

Function for reset radiogroup:

fun resetRadioGroup(rgType: RadioGroup) {
    rgType.setOnCheckedChangeListener(null)
    rgType.clearCheck()
    rgType.setOnCheckedChangeListener(onCheckedChangeListener)
}

Reference link

Whne i call this radiogroupId.clearCheck() this method recall radiogroup click listener

1 Answers1