MainActivity.kt

private fun performTextRecognitionOnDevice(bitmap: Bitmap){
        var myText:String?=null
        val setting = MLLocalTextSetting.Factory()
            .setOCRMode(MLLocalTextSetting.OCR_DETECT_MODE)
            .create()
        val analyzer = MLAnalyzerFactory.getInstance().getLocalTextAnalyzer(setting)
        val frame = MLFrame.fromBitmap(bitmap)
        val task: Task<MLText> = analyzer.asyncAnalyseFrame(frame)
  
        task.addOnSuccessListener {
            txt_translate_result.visibility= View.VISIBLE
            txt_to.visibility= View.VISIBLE
            txt_translation.visibility= View.VISIBLE
            toSpinner.visibility= View.VISIBLE
            selected_img.visibility= View.VISIBLE
            text_recognition_device_text.visibility= View.VISIBLE
            text_recognition_device_text.setText(it.stringValue)
            detectAndTranslateLanguage(it.stringValue, txt_translation,languageCode.toString(),applicationContext)
            myText=SharedPreferencesUtil.getInstance(applicationContext)!!.getStringValue("detectedLanguage")
            txt_detect_result.text="Detected Result  " + "("+getLanguage(myText!!)+")"
            txt_detect_result.visibility= View.VISIBLE
            detectedText=it.stringValue
            isEntered=true
            SharedPreferencesUtil.getInstance(applicationContext)!!.deleteValue("detectedLanguage")
        }.addOnFailureListener {
            Toast.makeText(
                this,
                "Text recognition failed, error message ->${it.message}",
                Toast.LENGTH_SHORT
            ).show()
        }
    }