Android app crash in play store prelaunch report but working in real device

Question

Not able to track crash in the project, I got this error in play store pre-launch section, it showing on click of EditText, it got the error. but not getting any cr

Answer 1

In my case EditText did not have a maxLength set. However we are using some custom InputFilter. Here how it looks like:

private val textFilter = object : InputFilter {

    override fun filter(source: CharSequence, start: Int, end: Int, dest: Spanned, dstart: Int, dend: Int): CharSequence? {
        return when {
            good -> null // just allow change as is
            bad -> "" // ignore change totally[*].
            else -> magic // return a calculated value
        }
    }
}

Problem[*] was ignoring the value totally by returning empty String which was causing crash on Marshmellow and below devices. Here is how I have solved this:

private val textFilter = object : InputFilter {

    override fun filter(source: CharSequence, start: Int, end: Int, dest: Spanned, dstart: Int, dend: Int): CharSequence? {
        return when {
            good -> null // just allow change as is
            bad -> (dest.toString() + source.subSequence(start, end)).subSequence(dstart, dstart + (end - start)) // ignore change totally[*].
            else -> magic // return a calculated value
        }
    }
}

Key Point is not to return anything smaller than the change (end-start) (on M and below devices).

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I still thank previous answers which helped me to identify the root cause.