CODEWITHSUNDEEP
androidlayout
MrGibbage
MrGibbage

Reputation: 2646

Why does my android activity always start scrolled to the bottom?

Whenever I start this activity, it always starts bottomed out--scrolled all the way to the bottom. I am not doing anything weird in the activity OnCreate (or anywhere for that matter) that I would expect to change the scroll position. I have tried setting focus to the topmost focusable control, and the scrollto method, but neither of them are working. Besides, none of my other activities has this problem. Here's the layout:

<ScrollView
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/scroll"
    android:layout_width="fill_parent"
    android:layout_height="wrap_content">
    <LinearLayout
        android:orientation="vertical"
        android:layout_width="match_parent"
        android:layout_height="match_parent">

        <TextView
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:id="@+id/edit_refresh_update_header"
            android:textSize="18sp"/>

        <TextView
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:text="\n"
            android:textSize="4sp"/>

        <TextView
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:text="Variable:"
            android:textSize="18sp"/>

        <Spinner
            android:id="@+id/edit_refresh_variables_spinner"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"/>

        <TextView
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:text="\n"
            android:textSize="4sp"/>

        <TextView
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:text="Network:"
            android:textSize="18sp"/>

        <RadioGroup
            android:id="@+id/widget1"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            xmlns:android="http://schemas.android.com/apk/res/android"
            android:orientation="vertical">

            <RadioButton
                android:text="Web"
                android:id="@+id/edit_refresh_update_rb_web"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:onClick="NetRadioButtonSelected"
                android:checked="true"/>

            <RadioButton
                android:text="Socket Server"
                android:id="@+id/edit_refresh_update_rb_socket_server"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:onClick="NetRadioButtonSelected"/>
        </RadioGroup>

        <TextView
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:text="\n"
            android:textSize="4sp"/>

        <TextView
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:text="Socket server request type:"
            android:textSize="18sp"/>

        <Spinner
            android:id="@+id/edit_refresh_socket_server_req_types_spinner"
            android:layout_width="fill_parent"
            android:layout_height="wrap_content"/>

        <TextView
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:text="\n"
            android:textSize="4sp"/>

        <TextView
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:text="Socket server body:"
            android:textSize="18sp"/>

        <EditText
            android:layout_width="match_parent"
            android:id="@+id/edit_refresh_update_ss_body"
            android:layout_height="wrap_content"
            android:enabled="false"/>

        <TextView
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:text="\n"
            android:textSize="4sp"/>

        <TextView
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:text="Url:"
            android:textSize="18sp"/>

        <EditText
            android:layout_width="match_parent"
            android:id="@+id/edit_refresh_update_url"
            android:layout_height="wrap_content"/>

        <TextView
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:text="\n"
            android:textSize="4sp"/>

        <Button
            android:text="Save refresh update"
            android:id="@+id/edit_refresh_save_btn"
            android:layout_height="wrap_content"
            android:layout_width="match_parent"
            android:layout_marginLeft="20dip"
            android:layout_marginRight="20dip"
            android:layout_marginBottom="20dp"
            android:layout_alignParentBottom="true"
            android:onClick="SaveRefreshUpdate">
        </Button>

        <TextView
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:text="\n"
            android:textSize="4sp"/>
    </LinearLayout>
</ScrollView>

Upvotes: 92

Views: 40342

Answers (12)

Sana Ebadi
Sana Ebadi

Reputation: 7220

with Kotlin and ViewBinding u can add this in your fragment or activity :

binding.mainScroll.isFocusableInTouchMode = true
binding.mainScroll.descendantFocusability = ViewGroup.FOCUS_BEFORE_DESCENDANTS

Upvotes: 0

Daniel Wilson
Daniel Wilson

Reputation: 19824

In my case I had a VideoView inside a ConstraintLayout inside a ScrollView. The VideoView was always stealing focus, and there are issues with it. Solution is to use a TextureView. Hopefully this helps someone, it cost me an hour at least :)

Upvotes: 0

Hemendra Gangwar
Hemendra Gangwar

Reputation: 511

Add these two lines in your ScrollView 

 android:focusableInTouchMode="true"
 android:descendantFocusability="blocksDescendants"

Upvotes: 4

Amit
Amit

Reputation: 3702

scrollView.requestFocus(View.FOCUS_UP) solved my problem when I wanted the top view to be visible. Specifying direction parameter to the method requestFocus(int direction) is a good way to control the ScrollView position. More details here.

Upvotes: 0

codepeaker
codepeaker

Reputation: 460

Just make it not focusable in onCreate()

editText.setFocusable(false);

and use 

editText.setOnClickListener(new ....){
 ......
  editText.setFocusable(true);
  editText.setFocusableInTouchMode(true);
  editText.requestFocus();

  showSoftKeyboard(); //Use InputMethodManager to open soft Keyboard

 ......
 };

and it will not scroll down to Edittext next time, a fragment or activity is created.

Upvotes: 1

Asher G.
Asher G.

Reputation: 5001

For Xamarin Android development, if you want to do @Graeme solution then:

// Set Focus to ScrollView
ScrollView scrollView = (ScrollView)FindViewById(Resource.Id.scrollView);
scrollView.FocusableInTouchMode = true;
scrollView.DescendantFocusability = Android.Views.DescendantFocusability.BeforeDescendants;

Upvotes: 1

Graeme
Graeme

Reputation: 25864

Instead of polluting items in your layout, you can add this into your Activity/Class:

    ScrollView scrollView = (ScrollView) findViewById(R.id.scrollView);
    scrollView.setFocusableInTouchMode(true); 
    scrollView.setDescendantFocusability(ViewGroup.FOCUS_BEFORE_DESCENDANTS);

This way it isn't an element within your scrollView getting focus, it's your scrollView as a container which get's the first focus, moving onto the child view's after this.

Upvotes: 35

luca992
luca992

Reputation: 1593

Along with what devmiles.com said.

If you set the following property in your LinearLayout - android:focusableInTouchMode="true" your LinearLayout will be focused on start and your activity won't scroll to EditText in the bottom.

If you call requestLayout() on a view at the bottom of your linear layout it might steal the focus from your top most view. So just call requestFocus() on the top most view in the linear layout after calling requestLayout() on a lower view.

Upvotes: 2

user4356416
user4356416

Reputation:

You can try this code:

scroller.post(new Runnable() { 
    public void run() { 
        scroller.fullScroll(ScrollView.FOCUS_DOWN); 
    } 
});

[N:B] [referance link]1

Upvotes: 4

devmiles.com
devmiles.com

Reputation: 10014

When Android starts an activity, some control needs to take focus. When there's no designated control to take focus, the system chooses the first eligible control that wants focus. If you set the following property in your LinearLayout - android:focusableInTouchMode="true" your LinearLayout will be focused on start and your activity won't scroll to EditText in the bottom.

Upvotes: 309

Mike
Mike

Reputation: 819

Have you tried use fullScroll method ?http://developer.android.com/reference/android/widget/ScrollView.html#fullScroll(int)

yourScrollView.fullScroll(ScrollView.FOCUS_UP);

Upvotes: 1

zapl
zapl

Reputation: 63955

I don't know why but you could experiment with

ScrollView sv = (ScrollView) findViewById(R.id.scroll);
sv.scrollTo(0,0);

in your onCreate to manually scroll it to where you like it to be.

Upvotes: 1

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