How to disable emojis programmatically in Android

Question

I want to hide emojis and auto suggestions from keyboard programmatically. Its working in some Android devices but not in all devices. here\'s my code for hide auto suggesti

Answer 1

In Kotlin, add Input filter to Edittext. I faced issues when digits and alphabets were rapidly typed. This code solves that

editText.filters = editTextAllowAlphabetsSymbols("") // Add any symbols that you wish to allow

then this

fun editTextAllowAlphabetsSymbols(symbols:String):Array{
        return arrayOf(AlphabetsSymbolsInputFilter(symbols))
}

and finally

class AlphabetsSymbolsInputFilter(symbols:String) : InputFilter {

private var mWordPattern: String
var mLetterPattern:String

init {
    mLetterPattern = "[a-zA-Z.$symbols ]"
    //mLetterPattern = "[a-zA-Z0-9.$symbols ]" // replace if alphanumeric
    mWordPattern = "$mLetterPattern+"
}

override fun filter(source: CharSequence, start: Int, end: Int, dest: Spanned, dstart: Int, dend: Int): CharSequence? {
    if(source == ""){
        println("In backspace")
        return source
    }
    if(source.isNotEmpty() && source.toString().matches(mWordPattern.toRegex())){
        return source
    }
    var sourceStr = ""
    if(source.isNotEmpty() && !source.toString().matches(mLetterPattern.toRegex())){
        sourceStr = source.toString()
        while(sourceStr.isNotEmpty() && !sourceStr.matches(mWordPattern.toRegex())){
            println(" source --> $source dest ---> $dest")
            if(sourceStr.last().isDigit()) {
                print("Is digit ")
                sourceStr = sourceStr.subSequence(0, sourceStr.length - 1).toString()
            }
            else if(!sourceStr.last().toString().matches(mLetterPattern.toRegex())) {
                print("Is emoji or weird symbols")
                sourceStr = sourceStr.subSequence(0, sourceStr.length - 1).toString()
            }else
                break
        }
        return sourceStr
    }
    return source
   }
}