coordinator-layout

I'm trying to use a coordinator layout with an appbar layout that hosts a fragment as the "scrolling view". The fragment consists of a recyclerView and a bottom aligned layout holding a button, like so: However, the bottom section is hidden by default: and only shows up after I scroll. From my activity class: @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); TestFragment fragment = (TestFragment) getFragmentManager().findFragmentByTag("Test"); if (fragment == null) fragment = new TestFragment();

The following is my layout xml. The problem now is that the BottomNavigationView is overlapping the FrameLayout. I wanted the FrameLayout to stretch to the top of the BottomNavigationView. I tried with trick such as adding paddingBottom in the FrameLayout but I wonder if there is other better solution. Thanks. <?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:id="@+id/container" android:layout

I new in android and I've troubles with FloatingActionButton behaivors My custom behavoir class: public class ScrollingFABBehavior extends FloatingActionButton.Behavior { private static final String TAG = "ScrollingFABBehavior"; public ScrollingFABBehavior(Context context, AttributeSet attrs, Handler mHandler) { super(); } @Override public boolean onStartNestedScroll(CoordinatorLayout coordinatorLayout, FloatingActionButton child, View directTargetChild, View target, int nestedScrollAxes) { return nestedScrollAxes == ViewCompat.SCROLL_AXIS_VERTICAL || super.onStartNestedScroll

I am using CoordinatorLayout to get this effect Here is the layout code. <?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" android:layout_width="match_parent" android:layout_height="match_parent" android:id="@+id/coordinatorRootLayout" android:background="@android:color/background_light" android:fitsSystemWindows="true" > <android.support.design.widget.AppBarLayout android:id="@+id/android_appbar_layout" android:layout_width="match_parent" android