<?xml version="1.0" encoding="utf-8"?>
<android.support.v4.widget.DrawerLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:id="@+id/drawer_layout"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="@color/colorMainBackground"
android:fitsSystemWindows="true">
<android.support.design.widget.CoordinatorLayout
android:layout_width="match_parent"
android:layout_height="match_parent">
<android.support.design.widget.AppBarLayout
android:layout_width="match_parent"
android:layout_height="wrap_content">
<android.support.v7.widget.Toolbar
android:id = "@+id/toolbar"
android:layout_width = "match_parent"
android:theme="@style/ThemeOverlay.AppCompat.Dark"
android:layout_height = "?attr/actionBarSize"
android:background="?attr/colorPrimary"/>
<android.support.design.widget.TabLayout
android:id="@+id/tabLayout"
android:layout_width="match_parent"
android:layout_height="wrap_content"
app:tabIndicatorColor="@android:color/white"
app:tabIndicatorHeight="6dp"
app:tabSelectedTextColor="@android:color/white"
app:tabTextColor="@android:color/white"/>
</android.support.design.widget.AppBarLayout>
<android.support.v4.view.ViewPager
android:id = "@+id/viewPager"
android:layout_width="match_parent"
android:layout_height="match_parent"
app:layout_behavior="@string/appbar_scrolling_view_behavior"/>
<android.support.design.widget.FloatingActionButton
android:id="@+id/fab"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="@mipmap/ic_refresh"
android:layout_gravity="end|bottom"
android:layout_marginBottom="@dimen/fab_margin"
android:layout_marginRight="@dimen/fab_margin"
/>
</android.support.design.widget.CoordinatorLayout>
<android.support.design.widget.NavigationView
android:id="@+id/navigation"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:layout_gravity="start"
app:menu="@menu/menu_navigation"
app:headerLayout="@layout/navigation_header"/>
</android.support.v4.widget.DrawerLayout>
<android.support.v7.widget.Toolbar
android:id = "@+id/toolbar"
android:layout_width = "match_parent"
android:theme="@style/ThemeOverlay.AppCompat.Dark"
android:layout_height = "?attr/actionBarSize"
android:background="?attr/colorPrimary"
app:layout_scrollFlags="scroll|enterAlways"
/>
Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
AppBarLayout.LayoutParams params = (AppBarLayout.LayoutParams) toolbar.getLayoutParams();
params.setScrollFlags(AppBarLayout.LayoutParams.SCROLL_FLAG_SCROLL | AppBarLayout.LayoutParams.SCROLL_FLAG_ENTER_ALWAYS);
appbar = (AppBarLayout) getActivity().findViewById(R.id.appbar_layout);
listView.setOnScrollListener(new AbsListView.OnScrollListener() {
@Override
public void onScrollStateChanged(AbsListView view, int scrollState) {
}
@Override
public void onScroll(AbsListView view, int firstVisibleItem, int visibleItemCount, int totalItemCount) {
if (view.getId() == listView.getId()) {
final int currentFirstVisibleItem = listView.getFirstVisiblePosition();
if (currentFirstVisibleItem > mLastFirstVisibleItem) {
//прячем appbar
appbar.animate().translationY(-appbar.getBottom()).setInterpolator(new AccelerateInterpolator()).start();
} else if (currentFirstVisibleItem < mLastFirstVisibleItem) {
//возвращаем на место...
appbar.animate().translationY(0).setInterpolator(new DecelerateInterpolator()).start();
}
mLastFirstVisibleItem = currentFirstVisibleItem;
}
}
});