Refactored AddWordFragment

app/src/main/java/com/paktalin/vocabularynotebook/ui/fragments/AddWordFragment.kt

 package com.paktalin.vocabularynotebook.ui.fragments
 
 import android.os.Bundle
-import android.text.Editable
-import android.text.TextWatcher
+import android.view.LayoutInflater
+import android.view.View
+import android.view.ViewGroup
+import androidx.fragment.app.Fragment
+import com.paktalin.vocabularynotebook.R
 import com.paktalin.vocabularynotebook.firestoreitems.WordPojo
+import com.paktalin.vocabularynotebook.ui.activities.MainActivity
 import com.paktalin.vocabularynotebook.utils.gone
-import com.paktalin.vocabularynotebook.utils.invisible
 import com.paktalin.vocabularynotebook.utils.visible
 import kotlinx.android.synthetic.main.fragment_editable_word.*
 import kotlinx.android.synthetic.main.submit.*
 
-class AddWordFragment : WordFragment() {
-    private var wordEmpty: Boolean = true
-        set(value) { field = value; updateButtons() }
-
-    private var translationEmpty: Boolean = true
-        set(value) { field = value; updateButtons() }
+open class AddWordFragment : Fragment() {
+    private lateinit var mainActivity: MainActivity
 
+    override fun onCreateView(inflater: LayoutInflater, container: ViewGroup?, savedInstanceState: Bundle?): View? {
+        return inflater.inflate(R.layout.fragment_editable_word, container, false)
+    }
 
     override fun onActivityCreated(savedInstanceState: Bundle?) {
         super.onActivityCreated(savedInstanceState)
+        mainActivity = activity as MainActivity
+        mainActivity.btnSubmitWord.setOnClickListener { submit() }
+        mainActivity.btnCancelWord.setOnClickListener { cancel() }
+
         word.setOnTouchListener { _, _ ->
             visible(mainActivity.btnSubmitLayout);false }
         translation.setOnTouchListener { _, _ ->
             visible(mainActivity.btnSubmitLayout); false }
-
-
-        word.addTextChangedListener(textWatcher {
-            wordEmpty = word.text.isEmpty() })
-        translation.addTextChangedListener(textWatcher {
-            translationEmpty = translation.text.isEmpty() })
-    }
-
-    override fun cancel() {
-        clearFields()
-        gone(mainActivity.btnSubmitLayout)
-        mainActivity.hideKeyboardNotFromActivity(mainActivity)
     }
 
-    override fun save(word:String, translation:String) {
-        // TODO addAll entry point
-        clearFields()
-        mainActivity.vocabularyAdapter.addWord(WordPojo(word, translation))
+    private fun submit() {
+        finish()
+        mainActivity.vocabularyAdapter.addWord(WordPojo(word.text.toString(), translation.text.toString()))
         this.word.requestFocus()
+        return
     }
 
-    private fun textWatcher(setEmpty: () -> Unit): TextWatcher {
-        return object : TextWatcher {
-            override fun beforeTextChanged(charSequence: CharSequence, i: Int, i1: Int, i2: Int) { }
-            override fun onTextChanged(charSequence: CharSequence, i: Int, i1: Int, i2: Int) { }
-            override fun afterTextChanged(editable: Editable) { setEmpty() }
-        }
+    private fun cancel() {
+        finish()
+        mainActivity.hideKeyboardNotFromActivity(mainActivity)
     }
 
-    private fun updateButtons() {
-        if (!wordEmpty || !translationEmpty) visible(btnClear)
-        if (wordEmpty && translationEmpty) invisible(btnClear)
+    private fun finish() {
+        word.text.clear()
+        translation.text.clear()
+        gone(mainActivity.btnSubmitLayout)
     }
 
     companion object { private val TAG = "VN/" + AddWordFragment::class.java.simpleName }

app/src/main/java/com/paktalin/vocabularynotebook/ui/fragments/WordFragment.kt

-package com.paktalin.vocabularynotebook.ui.fragments
-
-import android.os.Bundle
-import android.view.LayoutInflater
-import android.view.View
-import android.view.ViewGroup
-import androidx.fragment.app.Fragment
-import com.paktalin.vocabularynotebook.R
-import com.paktalin.vocabularynotebook.ui.activities.MainActivity
-import com.paktalin.vocabularynotebook.utils.gone
-import kotlinx.android.synthetic.main.fragment_editable_word.*
-import kotlinx.android.synthetic.main.submit.*
-
-abstract class WordFragment : Fragment() {
-    protected lateinit var mainActivity: MainActivity
-
-    override fun onCreateView(inflater: LayoutInflater, container: ViewGroup?, savedInstanceState: Bundle?): View? {
-        return inflater.inflate(R.layout.fragment_editable_word, container, false)
-    }
-
-    override fun onActivityCreated(savedInstanceState: Bundle?) {
-        super.onActivityCreated(savedInstanceState)
-        mainActivity = activity as MainActivity
-        mainActivity.btnSubmitWord.setOnClickListener { submit() }
-        mainActivity.btnCancelWord.setOnClickListener { cancel() }
-
-        btnClear.setOnClickListener { clearFields() }
-    }
-
-    private fun submit() {
-        gone(mainActivity.btnSubmitLayout)
-        save(word.text.toString(), translation.text.toString())
-        return
-    }
-
-    protected fun clearFields() {
-        word.text.clear()
-        translation.text.clear()
-    }
-
-    protected abstract fun cancel()
-    protected abstract fun save(word:String, translation:String)
-}
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