Created
February 13, 2025 04:27
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extension for simple add text change listener and remove it. Generated with GeminiAI
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| package app.keyboardly.addon.chatgpt | |
| import android.text.Editable | |
| import android.text.TextWatcher | |
| import android.widget.TextView | |
| import androidx.coordinatorlayout.widget.CoordinatorLayout | |
| /** | |
| * Created by Zainal on 13/02/2025 - 08:57 | |
| */ | |
| // resource layout ID Key for storing the TextWatcher as an associated object | |
| private const val TEXT_WATCHER_KEY = R.id.custom_input_layout | |
| // Extension function to add a TextWatcher | |
| fun TextView.addTextChangedListener( | |
| afterTextChanged: ((Editable?) -> Unit)? = null | |
| ) { | |
| val watcher = object : TextWatcher { | |
| override fun beforeTextChanged(s: CharSequence?, start: Int, count: Int, after: Int) {} | |
| override fun onTextChanged(s: CharSequence?, start: Int, before: Int, count: Int) {} | |
| override fun afterTextChanged(s: Editable?) { | |
| afterTextChanged?.invoke(s) | |
| } | |
| } | |
| // Store the TextWatcher as an associated object | |
| setTag(TEXT_WATCHER_KEY, watcher) | |
| addTextChangedListener(watcher) | |
| } | |
| // Extension function to remove the TextWatcher | |
| fun TextView.removeTextChangedListener() { | |
| // Retrieve the TextWatcher from the associated object | |
| val watcher = getTag(TEXT_WATCHER_KEY) as? TextWatcher | |
| // Remove the TextWatcher if it exists | |
| watcher?.let { | |
| removeTextChangedListener(it) | |
| // Remove the tag | |
| setTag(TEXT_WATCHER_KEY, null) | |
| } | |
| } |
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