Android alphabetical fast scrollview in RecyclerView with Collapsing toolbar

we want some Knowledge of SectionIndexer. Here is Doc of SectionIndexer. We have to set TRUE setFastScrollEnabled(true) method, which is used with the LISTVIEW…….You can use recyclerview instead of listView in the below example…. this is activity public class FastScoll extends ListActivity { ListView fruitView; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_fast_scoll); fruitView = … Read more

Floating Action Button not showing fully inside a fragment

It’s not an acceptable solution to have to show/hide the FAB whatever tab is selected. I’ve tried every layout combination, but moving the FAB to the activity layout was the only solution that worked. But what if you need the button only in one tab? It’s the only way that works now, but I’m expecting … Read more

CoordinatorLayout using the ViewPager’s RecyclerView

Chris Banes has posted a sample on Github which shows exactly what you want to do. Here is the xml file that defines how one can indirectly attach a coordinator layout to the viewpager’s fragments. <android.support.design.widget.CoordinatorLayout xmlns:android=”http://schemas.android.com/apk/res/android” xmlns:app=”http://schemas.android.com/apk/res-auto” android:id=”@+id/main_content” android:layout_width=”match_parent” android:layout_height=”match_parent”> <android.support.design.widget.AppBarLayout android:id=”@+id/appbar” android:layout_width=”match_parent” android:layout_height=”wrap_content” android:theme=”@style/ThemeOverlay.AppCompat.Dark.ActionBar”> <android.support.v7.widget.Toolbar android:id=”@+id/toolbar” android:layout_width=”match_parent” android:layout_height=”?attr/actionBarSize” android:background=”?attr/colorPrimary” app:popupTheme=”@style/ThemeOverlay.AppCompat.Light” app:layout_scrollFlags=”scroll|enterAlways” /> <android.support.design.widget.TabLayout … Read more

Add app bar scrolling view behavior to multiple views in CoordinatorLayout

You don’t need a workaround or something strange. This behaviour is supported by the library. Just replace your LinearLayout by this and put it below the RecyclerView: <android.support.v4.widget.NestedScrollView android:layout_width=”match_parent” android:layout_height=”wrap_content” app:layout_behavior=”@string/appbar_scrolling_view_behavior”> <LinearLayout android:layout_width=”match_parent” android:layout_height=”wrap_content” android:orientation=”vertical” android:gravity=”center”> <Button android:layout_width=”wrap_content” android:layout_height=”wrap_content” android:padding=”15dp” android:text=”Button text”/> </LinearLayout> </android.support.v4.widget.NestedScrollView> Also you will need to put this in your RecyclerView to … Read more

Hide FloatingActionButton on scroll of RecyclerView

Easiest solution: recyclerView.addOnScrollListener(new RecyclerView.OnScrollListener() { @Override public void onScrolled(RecyclerView recyclerView, int dx, int dy) { if (dy > 0 ||dy<0 && fab.isShown()) { fab.hide(); } } @Override public void onScrollStateChanged(RecyclerView recyclerView, int newState) { if (newState == RecyclerView.SCROLL_STATE_IDLE) { fab.show(); } super.onScrollStateChanged(recyclerView, newState); } });

Android – footer scrolls off screen when used in CoordinatorLayout

I use a simplified version of Learn OpenGL ES’s solution — which improves on Noa’s solution. It works fine for my simple quick-return toolbar above a TabLayout with footer buttons in each tab’s ViewPager content. Just set the FixScrollingFooterBehavior as the layout_behavior on the View/ViewGroup you want to keep aligned at the bottom of the … Read more

Fix bottom bar in CoordinatorLayout

Try this layout : <?xml version=”1.0″ encoding=”utf-8″?> <android.support.design.widget.CoordinatorLayout 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:layout_width=”match_parent” android:layout_height=”match_parent” android:id=”@+id/container”> <ScrollView android:layout_width=”match_parent” android:layout_height=”match_parent” android:layout_above=”@+id/bottom_navigation” android:layout_alignParentTop=”true”> <LinearLayout android:layout_width=”match_parent” android:layout_height=”wrap_content” android:orientation=”vertical”> <android.support.v7.widget.CardView xmlns:card_view=”http://schemas.android.com/apk/res-auto” android:id=”@+id/card_view” android:layout_width=”match_parent” android:layout_margin=”10dp” android:layout_height=”110dp” android:padding=”15dp” card_view:cardElevation=”2dp” card_view:cardCornerRadius=”4dp”> <TextView android:layout_width=”match_parent” android:layout_height=”match_parent” android:text=”Test” /> </android.support.v7.widget.CardView> <android.support.v7.widget.CardView xmlns:card_view=”http://schemas.android.com/apk/res-auto” android:id=”@+id/card_view1″ android:layout_width=”match_parent” android:layout_margin=”10dp” android:layout_height=”110dp” android:padding=”15dp” card_view:cardElevation=”2dp” card_view:cardCornerRadius=”4dp”> <TextView android:layout_width=”match_parent” android:layout_height=”match_parent” android:text=”Test” /> </android.support.v7.widget.CardView> <android.support.v7.widget.CardView xmlns:card_view=”http://schemas.android.com/apk/res-auto” … Read more

Failed to find style ‘coordinatorLayoutStyle’ in current theme

I solved this rendering problem by simply inserting this line into the application theme (the app theme is usually placed in styles.xml). [SDK 28] <style name=”AppTheme”> <item name=”coordinatorLayoutStyle”>@style/Widget.Support.CoordinatorLayout</item> </style> [SDK 27] <style name=”AppTheme”> <item name=”coordinatorLayoutStyle”>@style/Widget.Design.CoordinatorLayout</item> </style> As suggested by @Chris. If the IDE does not find the CoordinatorLayout in Widget.Support or Widget.Design, just start typing … Read more