Android Toolbar + Tab Layout + Drawer, Hide toolbar when scrolling and take TabLayout to the top

Question

I have activity which has drawer attached to it. Each menu of the drawer is a fragment, and under one of the menu I have a fragment with TabLayout, and each tab

Answer 1

To hide your Toolbar anytime you can use :

getSupportActionBar().hide();

for more explanation view url1 or url2

Answer 2

Remove coordinator layout used in tabbed activity. Use LinearLayout

Answer 3

You can try the following one, which I have used to hide the toolbar, and make the scrollview take the whole screen for full page reading in my application design.

It is as follows.

1. Hide the toolbar.
2. Get your phone screen width and Height.
3. Store the Tab layout Height and width to a temporary variable.
4. Assign the phone screen width and Height to your Tab Layout.

This can be done in the following way:

getSupportActionBar().hide();    
int mwidth = getApplicationContext().getResources().getDisplayMetrics().widthPixels;
int mheight = getApplicationContext().getResources().getDisplayMetrics().heightPixels;
temp = (TabLayout) myfrag.getActivity().findViewById(R.id.TabLayout_genesis);
int getwidth = temp.getWidth();
int getheight = temp.getHeight();
temp.setMinimumHeight(mheight);
temp.setMinimumWidth(mwidth);

Hope it helps.

Answer 4

Can you use the support design library? It has this behavior built in to do exactly what you have described. It uses CoordinatorLayout to accomplish this.

<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:animateLayoutChanges="true"
    >
    <android.support.design.widget.AppBarLayout
        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:layout_scrollFlags="scroll|enterAlways"
            app:popupTheme="@style/ThemeOverlay.AppCompat.Light" />
        <android.support.design.widget.TabLayout
            android:id="@+id/tabanim_tabs"
            android:layout_width="match_parent"
            android:layout_height="wrap_content" />
    </android.support.design.widget.AppBarLayout>
    <android.support.v4.view.ViewPager
        android:id="@+id/tabanim_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="@drawable/ic_alarm_add_white_48dp"
        app:layout_anchor="@id/tabanim_viewpager"
        app:layout_anchorGravity="bottom|right|end"
        android:layout_margin="16dp"
        />

</android.support.design.widget.CoordinatorLayout>