Spinner scrolls to top when onLongPress or scrolling slowly

I had exactly the same issue and removing the app:popupTheme attribute fixed it. Check this comment: https://issuetracker.google.com/issues/37065626#comment15.

I solved this issue by the following method.

• API level 22 or lower: Use app:popupTheme
• API level 23 or higher: Use android:popupTheme

res/layout/spinner.xml

<android.support.v7.widget.AppCompatSpinner    xmlns:android="http://schemas.android.com/apk/res/android"    xmlns:app="http://schemas.android.com/apk/res-auto"    android:id="@+id/spinner"    android:layout_width="wrap_content"    android:layout_height="wrap_content"    android:layout_gravity="end"    android:layout_marginRight="@dimen/toolbar_spinner_margin_right"    app:popupTheme="@style/ThemeOverlay.AppCompat.Light" />

res/layout-v23/spinner.xml

<android.support.v7.widget.AppCompatSpinner    xmlns:android="http://schemas.android.com/apk/res/android"    android:id="@+id/spinner"    android:layout_width="wrap_content"    android:layout_height="wrap_content"    android:layout_gravity="end"    android:layout_marginRight="@dimen/toolbar_spinner_margin_right"    android:popupTheme="@style/ThemeOverlay.AppCompat.Light" />

res/layout/activity_main.xml

<android.support.v7.widget.Toolbar    android:id="@+id/toolbar"    android:layout_width="match_parent"    android:layout_height="wrap_content"    android:background="?attr/colorPrimary"    android:minHeight="?attr/actionBarSize"    android:theme="?attr/actionBarTheme"    android:popupTheme="@style/ThemeOverlay.AppCompat.Dark.ActionBar">    <include layout="@layout/spinner" /></android.support.v7.widget.Toolbar>

And to solve an issue where the spinner button color is black in API level 19 or lower, you need to add the following code:

Kotlin

if (android.os.Build.VERSION.SDK_INT <= Build.VERSION_CODES.KITKAT) {    val spinnerDrawable = spinner.background.constantState.newDrawable()    spinnerDrawable.setColorFilter(Color.WHITE, PorterDuff.Mode.SRC_ATOP)    if (android.os.Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN) {        spinner.background = spinnerDrawable    } else {        spinner.setBackgroundDrawable(spinnerDrawable)    }}

Java

if (android.os.Build.VERSION.SDK_INT <= Build.VERSION_CODES.KITKAT) {    Drawable spinnerDrawable = spinner.getBackground().getConstantState().newDrawable();    spinnerDrawable.setColorFilter(Color.WHITE, PorterDuff.Mode.SRC_ATOP);    if (android.os.Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN) {        spinner.setBackground(spinnerDrawable);    } else {        spinner.setBackgroundDrawable(spinnerDrawable);    }}