CODEWITHSUNDEEP
androidlistviewshow-hideandroid-toolbar
Solenya
Solenya

Reputation: 694

Hide/show Toolbar

In my application, I want to hide/show the toolbar when the list is scrolling. In my opinion, I implemented everything like described in this how to show/hide under link:

https://mzgreen.github.io/2015/06/23/How-to-hideshow-Toolbar-when-list-is-scrolling%28part3%29/

The problem is, when the list is scrolled, the toolbar isn't moving/hiding.

Here is the code of the .xml:

<?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: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.ActionBar">

        <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"
            app:layout_scrollFlags="scroll|enterAlways"
            app:titleTextColor="@android:color/white" />
    </android.support.design.widget.AppBarLayout>

    <se.emilsjolander.stickylistheaders.StickyListHeadersListView
        android:id="@+id/lvRef"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        app:layout_behavior="@string/appbar_scrolling_view_behavior" />
</android.support.design.widget.CoordinatorLayout>

Here are the dependencies:

dependencies {
    compile fileTree(dir: 'libs', include: ['*.jar'])
    testCompile 'junit:junit:4.12'
    compile 'com.android.support:appcompat-v7:23.4.0'
    compile 'se.emilsjolander:stickylistheaders:2.7.0'
    compile 'com.android.support:recyclerview-v7:23.4.0'
    compile 'com.android.support:cardview-v7:23.4.0'
    compile 'com.android.support:design:23.4.0'
}

Upvotes: 1

Views: 2685

Answers (4)

Rushi Ayyappa
Rushi Ayyappa

Reputation: 2848

If you want to hide the toolbar on scroll down then first detect the scroll dy of your ListView or RecyclerView and before that get the actionBar object from toolbar.

Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(toolbar);

    //in on scroll listener of your view check for dy

    if (dy > 0) {
        //detecting scroll up action  
        toolbar.setVisibility(View.GONE);
    } else {
        //detect scrolldown action dy<0
        toolbar.setVisibility(View.VISIBLE);
    }

Upvotes: 1

K. Gandhi
K. Gandhi

Reputation: 176

Unfortunately, there is no way to get nested scrolling working on ListView. Use sticky header RecyclerView instead.

Upvotes: 2

Aditya Vyas-Lakhan
Aditya Vyas-Lakhan

Reputation: 13555

To hide the toolbar you can do like that

toolbar.animate().translationY(-toolbar.getBottom()).setInterpolator(new AccelerateInterpolator()).start();

To Show the toolbar again do like this way

toolbar.animate().translationY(0).setInterpolator(new DecelerateInterpolator()).start();

Upvotes: 0

max59
max59

Reputation: 606

In your toolbar's layout:

use android:layout_height="?attr/actionBarSize" instead of android:layout_height="wrap_content" and remove android:minHeight="?attr/actionBarSize"

Upvotes: 1

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