Recyclerview Changing Items During Scroll

Question

I have a RecyclerView. Each row has a play button, textview and Progressbar. when click on the play button have to play audio from my sdcard and have to progress Progressbar

Answer 1

When we are changing RecyclerView items dynamically (i.e. when changing background color of a specific RecyclerView item), it could change appearance of the items in unexpected ways when scrolling due to the nature of how RecyclerView reuse its items.

However to avoid that it is possible to use android.support.v4.widget.NestedScrollView wrapped around the RecyclerView and letting the NestedScrollView handle the scrolling.

<android.support.v4.widget.NestedScrollView
    android:layout_width="match_parent"
    android:layout_height="match_parent">

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="match_parent">

        <android.support.v7.widget.RecyclerView
            android:id="@+id/recycler_view"
            android:layout_width="match_parent"
            android:layout_height="match_parent"/>

   </LinearLayout>
</android.support.v4.widget.NestedScrollView>

And then in the code you can disable nested scrolling for the RecyclerView to smooth out scrolling by letting only the NestedScrollView to handle scrolling.

ViewCompat.setNestedScrollingEnabled(recyclerView, false);

Answer 2

This line changes progress to 0 on each bind

myViewHolder.progressplay.setProgress(0);

Save its state somewhere then load it in this same line.

Answer 3

Why don't you try like this,

    HashMap<String, Integer> progressHashMap = new HashMap<>();

    //...
    if(!progressHashMap.containsKey(downloadpath)){
        progressHashMap.put(downloadpath, mPlayer.getCurrentPosition());
    }

    progressbar.setProgress(progressHashMap.get(downloadpath));