How to keep a bottom nav bar from being pushed up on keyboard shown

问题

How can i create a sticky footer that wont be moved up with the view when the softkey keyboard popups up?

Below is an image example of my current setup and what i want to achieve. I have a scrollview that contains my page content and a linearlayout that is aligned to the parent bottom that acts as a nav bar.

Problem is that when the keyboard popups, it pushes my entire view up, including the bottom nav section. I do not want to disable the automatic pushing up of the view (by setting android:windowSoftInputMode="adjustPan") but rather exclude a single element from being pushed up, my bottom nav bar.

I have tested the windowSoftInputMode fix but it hides my page content behind the keyboard. Is there a way to have it continue pushing up the scrollview but not the bottom nav? My other option was to set visibility:gone on keyboard up and then reshow it on keyboard down, but that seems overly complicated and not always reliable from what i read.

If anyone has any examples or suggestions, i'm all ears. Thanks.

回答1:

Either add this as scrollbar's XML attribute

android:isScrollContainer="false"

or add this in Activity's tag in Manifest

android:windowSoftInputMode="adjustPan"

回答2:

I tried a lot of solutions found on SO and only adding android:windowSoftInputMode="adjustNothing" into the manifest for the activity worked for me:

<activity
    android:name=".MainActivity"
    android:windowSoftInputMode="adjustNothing">

Associated layout:

  <RelativeLayout
     ...
        <android.support.v4.widget.NestedScrollView
           ...
        </android.support.v4.widget.NestedScrollView>
        <android.support.design.widget.BottomNavigationView
             ...
            design:menu="@menu/navigation"/>
    </RelativeLayout>

回答3:

Just add this line in your onCreate, When this option set the window not adjust for a shown input method. :

getWindow().setSoftInputMode(WindowManager.LayoutParams.SOFT_INPUT_ADJUST_NOTHING);

回答4:

I've come across a pretty similar problem with the differences that a) I wasn't using a ScrollView at first and b) the item I didn't want to move was a simple TextView.

Here's the answer I found: click

What I did to fix it:

Use adjustResize
Use 4 Layouts: A surrounding one, 1 for the header, the ScrollView and 1 for your "bottom nav"
Don't just rely on android:layout_alignParentBottom="true", while this will move your navigation bar to the bottom of the screen, it also means that the keyboard can move it up because of "adjustResize"
Additionally use android:layout_height="wrap_content" in combination with android:layout_below="@id/MyScrollView" (so the layout will use up all the space it can get between the ScrollView and the bottom of the screen) and android:gravity="bottom" to simply have everything at the bottom of the layout.
You might also be able to use android:layout_height="match_parent" instead of android:layout_alignParentBottom="true" and android:layout_height="wrap_content" but I didn't fully test it like that.
Like I said, this will make the "bottom nav" layout use up all the space it can get below the ScrollView. If you don't want that, e.g. because your "bottom nav" has a different color you don't want to be shown too much, try creating a surrounding RelativeLayout for "bottom nav" and another empty layout inside that can push "bottom nav" downwards. ;)

回答5:

I am very late to answer but I ran into same situation lately. I followed another approach to solve this issue and that was rather than using RelativeLayout or LinearLayout, using CoordinatorLayout and having behavior applied to BottomNavigtaionView to show/hide it with scrolling to top or bottom (the same way we see CollapsingToolBar or AppBarLayout).

The built in behavior used for BottomNavigationView is app:layout_behavior="@string/hide_bottom_view_on_scroll_behavior"

You can read all steps in detail from my another answer here.

P.S. I posted it as an answer rather than a comment because sometimes we just look for answers and ignore the comments and I believe it could be a good approach to solve this issue, so you should not ignore it and give it a read once. Thanks.

来源：https://stackoverflow.com/questions/38385615/how-to-keep-a-bottom-nav-bar-from-being-pushed-up-on-keyboard-shown

标签

android

android-softkeyboard