androidandroid-recyclerviewtextviewellipsize

Why for some recyclerview items, textview ellipsize check returns true during recyclerview scroll even if its false?

In my recyclerview item, i need to check whether a textview is ellipsized or not. Based on this condition, I need to do some logic. This is my item layout xml code:

<androidx.constraintlayout.widget.ConstraintLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:id="@+id/activity_list_item_root_view"
    style="@style/ClickableRectanglePrimary"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:paddingHorizontal="16dp"
    android:paddingTop="13.5dp"
    android:paddingBottom="14.5dp">

    <ImageView
        android:id="@+id/activity_list_item_contact_image"
        android:layout_width="@dimen/ui_size_xl_2"
        android:layout_height="@dimen/ui_size_xl_2"
        tools:ignore="ContentDescription"
        app:layout_constraintTop_toTopOf="parent"
        app:layout_constraintStart_toStartOf="parent" />

    <TextView
        android:id="@+id/activity_list_item_name"
        style="@style/activity_list_item_name_v2"
        android:layout_width="0dp"
        android:layout_height="wrap_content"
        android:gravity="center_vertical|start"
        android:text="ABC India Pvt. Ltd."
        tools:ignore="HardcodedText"
        app:layout_constraintStart_toEndOf="@+id/activity_list_item_contact_image"
        app:layout_constraintEnd_toStartOf="@+id/activity_list_item_amount"
        app:layout_constraintTop_toTopOf="@+id/activity_list_item_contact_image"
        android:layout_marginStart="12dp"
        android:layout_marginEnd="4dp"/>

    <TextView
        android:id="@+id/activity_list_item_date"
        style="@style/activity_list_item_details"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:gravity="center_vertical|start"
        android:text="Yesterday"
        tools:ignore="HardcodedText"
        app:layout_constraintTop_toBottomOf="@id/activity_list_item_name"
        app:layout_constraintStart_toEndOf="@id/activity_list_item_contact_image"
        android:layout_marginStart="12dp"
        android:layout_marginTop="4dp"/>

    <TextView
        android:id="@+id/activity_list_item_dot_text"
        style="@style/activity_list_item_details"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:gravity="center_vertical|start"
        android:text=" \u00b7 "
        tools:ignore="HardcodedText"
        app:layout_constraintStart_toEndOf="@id/activity_list_item_date"
        app:layout_constraintTop_toBottomOf="@id/activity_list_item_name"
        android:layout_marginTop="4dp"/>

    <ImageView
        android:id="@+id/activity_list_item_status_icon"
        android:layout_width="@dimen/ui_size_xs"
        android:layout_height="@dimen/ui_size_xs"
        android:layout_marginEnd="6dp"
        android:scaleType="fitXY"
        tools:ignore="ContentDescription"
        app:srcCompat="@drawable/ui_purchase_protection_alt"
        app:layout_constraintStart_toEndOf="@id/activity_list_item_dot_text"
        app:layout_constraintTop_toBottomOf="@id/activity_list_item_name"
        android:layout_marginTop="4dp"/>

    <TextView
        android:id="@+id/activity_list_item_status_text"
        style="@style/activity_list_item_details"
        android:layout_width="0dp"
        android:layout_height="wrap_content"
        android:gravity="center_vertical|start"
        android:text="Request Received"
        tools:ignore="HardcodedText"
        android:ellipsize="end"
        android:maxLines="1"
        app:layout_constraintStart_toEndOf="@id/activity_list_item_status_icon"
        app:layout_constraintTop_toBottomOf="@id/activity_list_item_name"
        app:layout_constraintEnd_toStartOf="@id/activity_list_item_amount"
        android:layout_marginEnd="4dp"
        android:layout_marginTop="4dp"/>

    <TextView
        android:id="@+id/activity_list_item_status_spillover_text"
        style="@style/activity_list_item_details"
        android:layout_width="0dp"
        android:layout_height="wrap_content"
        android:gravity="center_vertical|start"
        android:text="Request Received"
        tools:ignore="HardcodedText"
        android:visibility="gone"
        tools:visibility="visible"
        app:layout_constraintTop_toBottomOf="@id/activity_list_item_date"
        app:layout_constraintStart_toEndOf="@id/activity_list_item_contact_image"
        android:layout_marginStart="12dp"
        android:layout_marginTop="4dp"/>
 
    <TextView
        android:id="@+id/activity_list_item_amount"
        style="@style/UiTextView.Xl.Regular"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:gravity="center|end"
        android:text="$149.99"
        android:textColor="?attr/ui_v2_color_grey_600"
        android:textSize="18sp"
        tools:ignore="HardcodedText"
        app:layout_constraintTop_toTopOf="@id/activity_list_item_contact_image"
        app:layout_constraintEnd_toEndOf="parent" />

</androidx.constraintlayout.widget.ConstraintLayout>

The layout looks like this: enter image description here

Now, I want to check whether this textview activity_list_item_status_text is ellipsized or not, and if it is ellipsized, show the textview in the third line activity_list_item_status_spillover_text. If not, hide it. I used TreeObserver to check this. Here's the code inside the ViewHolder:

TextView statusTextView = binding.activityListItemStatusText;
statusTextView.getViewTreeObserver().addOnDrawListener(() -> {
      Layout layout = statusTextView.getLayout();
      if (layout != null) {
           int lines = layout.getLineCount();
           if (layout.getEllipsisCount(lines - 1) > 0) {
                binding.activityListItemStatusSpilloverText.setVisibility(View.VISIBLE);
           }else {
                binding.activityListItemStatusSpilloverText.setVisibility(View.GONE);
           }
       }
 });

This code works fine when I open the recyclerview. But, when I scroll the recyclerview, for some items, this condition layout.getEllipsisCount(lines - 1) > 0 becomes true even though the text is not ellipsized and the activity_list_item_status_spillover_text is getting visible. Its like text is getting ellipsized during scroll. I am not able to figure out why this is happening. Is there any issue with the code?

EDIT: Adding the screen recording of the problem: https://drive.google.com/file/d/1l-xUyBJzHy-7BScsbcJPpznhwVSN7Ah4/view?usp=sharing

Solution

  • I got the answer. I changed the logic of finding whether the tetxview is ellipsized or not. I changed the textview code to this:

        <TextView
        android:id="@+id/activity_list_item_status_text"
        style="@style/activity_list_item_details"
        android:layout_width="wrap_content"
        app:layout_constrainedWidth="true"
        app:layout_constraintHorizontal_bias="0"
        android:layout_height="wrap_content"
        android:gravity="center_vertical|start"
        android:text="Request Received"
        tools:ignore="HardcodedText"
        app:layout_constraintStart_toEndOf="@id/activity_list_item_status_icon"
        app:layout_constraintTop_toBottomOf="@id/activity_list_item_name"
        app:layout_constraintEnd_toStartOf="@id/activity_list_item_amount"
        android:layout_marginEnd="4dp"
        android:layout_marginTop="4dp"
        android:maxLines="1" />

    As you can see from the above code, I added these two lines to the code:

        app:layout_constrainedWidth="true"
    app:layout_constraintHorizontal_bias="0"

    and removed ellipsize="end".

    Then I changed the logic to check for ellipsis to this code:

    if (statusTextView.getLineCount() > statusTextView.getMaxLines()) {
     //Ellipsized
} else {
     //Not ellipsized
}

    This solved my issue.