Tag is added to the selected words

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

@@ -7,13 +7,13 @@ 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.Log
 import com.paktalin.vocabularynotebook.utils.removeFragment
 import com.paktalin.vocabularynotebook.utils.shortToast
 import kotlinx.android.synthetic.main.fragment_tag.*
 
 class TagFragment : Fragment() {
     private lateinit var mainActivity: MainActivity
+    private var selectionList = mutableListOf<Long>()
 
     override fun onCreateView(inflater: LayoutInflater, container: ViewGroup?, savedInstanceState: Bundle?): View? {
         return inflater.inflate(R.layout.fragment_tag, container, false)
@@ -27,8 +27,7 @@ class TagFragment : Fragment() {
     }
 
     fun setSelection(selectionList: List<Long>) {
-        Log.d(TAG, "selection $selectionList")
-
+        this.selectionList = selectionList.toMutableList()
     }
 
     private fun submit() {
@@ -36,7 +35,7 @@ class TagFragment : Fragment() {
             if (it.isBlank())
                 shortToast(mainActivity, mainActivity.getString(R.string.toast_tag_cannot_be_empty))
             else
-                mainActivity.vocabularyAdapter?.addTagToSelected(it)
+                mainActivity.vocabularyAdapter?.addTagToSelected(it, selectionList)
         }
     }
 

app/src/main/java/com/paktalin/vocabularynotebook/ui/recycler_view/VocabularyAdapter.kt

@@ -139,7 +139,8 @@ class VocabularyAdapter(private val vocabulary: VocabSet, private val mainActivi
         return vocabulary.getModified()
     }
 
-    fun addTagToSelected(tag: String) {
+    fun addTagToSelected(tag: String, selectionList: MutableList<Long>) {
+        vocabulary.addTag(selectionList, tag)
     }
 
     companion object {

app/src/main/java/com/paktalin/vocabularynotebook/utils/ActivityUtil.kt

@@ -17,7 +17,7 @@ import org.apache.commons.lang3.StringUtils
 val progressFragment = ProgressFragment()
 
 fun addFragment(fragmentManager: FragmentManager, fragment: Fragment, containerId: Int, arg: Bundle? = null, tag: String? = null) {
-    if (!fragment.isAdded)
+    if (fragmentManager.findFragmentById(fragment.id) == null && !fragment.isAdded)
         fragmentManager.beginTransaction()
                 .add(containerId, fragment.apply { arguments = arg }, tag)
                 .commitAllowingStateLoss()

app/src/main/java/com/paktalin/vocabularynotebook/vocabulary/VocabSet.kt

@@ -25,6 +25,8 @@ class VocabSet(var wordList: MutableList<WordPojo>) : Vocabulary {
                     (snapshot["time"] as Timestamp).toDate(),
                     snapshot.id)
         }
+
+        private val TAG = "VN/" + VocabSet::class.java.simpleName
     }
 
     override fun addAll(words: MutableList<WordPojo>) {
@@ -63,11 +65,22 @@ class VocabSet(var wordList: MutableList<WordPojo>) : Vocabulary {
         return displayedVocabulary.at(position)
     }
 
-    fun displayedSize():Int { return displayedVocabulary.size() }
+    fun displayedSize(): Int {
+        return displayedVocabulary.size()
+    }
 
-    fun clearDisplayed() { displayedVocabulary.clear() }
+    fun clearDisplayed() {
+        displayedVocabulary.clear()
+    }
 
     fun getModified(): MutableMap<WordPojo, Boolean> {
         return modifiedVocabulary.get()
     }
+
+    fun addTag(selectionList: MutableList<Long>, tag: String) {
+        selectionList.forEach { position ->
+            displayedAt(position.toInt()).tag = tag
+            modifiedVocabulary.addWord(displayedAt(position.toInt()))
+        }
+    }
 }
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