I'm trying to get a ScrollView to take up as much screen space as it needs until it would start pushing items below (outside) it off the screen, then it needs to stop expanding and become scrolly.
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
>
<ScrollView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="#ff0000"
>
<TextView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="taking\nup\lots\nof\nlines\nto\nmake\nthe\nscrollview"s\ncontent\ntaller\nthan\nthe\nspace\navailable\nto\nit\nwhich\nshould\nmake\nthe\nscrollview\nstop\nabove\nthe\nbutton\nand\nbecome\nscrollable"
/>
<!--
android:text="just one line"
-->
</ScrollView>
<Button
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="Button"
/>
</LinearLayout>
As it is above the ScrollView fills the entire screen height and pushes the button off the bottom of the screen.
If I add android:layout_weight="1" to the ScrollView then it works for this case - the button is at the bottom and the ScrollView stops above it - but when the ScrollView doesn't have much content (replace the text with the one-liner) then the ScrollView doesn't shrink to fit around the content so is far too tall.
I've tried using RelativeLayout with no success - if the Button is android:layout_below the ScrollView then the ScrollView will push it off the bottom of the screen if it has a lot of content.
Here's what I want it to look like: in the first image the ScrollView has a lot of content and so expands to fill the available height but doesn't push the items below it (the button) offscreen, in the second image the ScrollView doesn't have much content so takes up just the height it needs allowing the items below it (the button) to move up the screen:
What you can do, is to correct the height in your code. It's a bit hacky and I would like to see another solution, but off the top of my head I do not know anything better.
What you would need is to add a OnGlobalLayoutListener and calculate within it the minimum of either the ScrollView height or the height of the container surrounding your ScrollView minus the height of your Button.
Then set the size with setLayoutParams() on your ScrollView.
And you have to remove the listener to avoid an endless loop :-)
final View scrollview = findViewById(R.id.scrollview);
final View container = findViewById(R.id.container);
final View button = findViewById(R.id.button);
scrollview.getViewTreeObserver().addOnGlobalLayoutListener(new ViewTreeObserver.OnGlobalLayoutListener() {
#Override
public void onGlobalLayout() {
int height = scrollview.getHeight();
int heightButton = button.getHeight();
int heightContainer = container.getHeight();
int min = Math.min(heightContainer - heightButton, height);
int width = scrollview.getWidth();
Log.v("test", "min: " + min);
scrollview.setLayoutParams(new RelativeLayout.LayoutParams(width, min));
// do not forget to remove the listener
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN) {
scrollview.getViewTreeObserver().removeOnGlobalLayoutListener(this);
}
else {
scrollview.getViewTreeObserver().removeGlobalOnLayoutListener(this);
}
}
});
For this to work you have to use wrap_content as the height of the ScrollView in your layout file. And the outer container has to be a RelativeLayout so that the Buttonis rendered and has a non-zero height!
If you use paddings or margins you would have to consider those values in the computation.
Try this:
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
<ScrollView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_above="#+id/button"
android:background="#ff0000">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
<TextView
android:padding="5dp"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="taking\nup\lots\nof\nlines\nto\nmake\nthe\nscrollview"s\ncontent\ntaller\nthan\nthe\nspace\navailable\nto\nit\nwhich\nshould\nmake\nthe\nscrollview\nstop\nabove\nthe\nbutton\nand\nbecome\nscrollable" />
<TextView
android:padding="5dp"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="taking\nup\lots\nof\nlines\nto\nmake\nthe\nscrollview"s\ncontent\ntaller\nthan\nthe\nspace\navailable\nto\nit\nwhich\nshould\nmake\nthe\nscrollview\nstop\nabove\nthe\nbutton\nand\nbecome\nscrollable" />
<TextView
android:padding="5dp"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="taking\nup\lots\nof\nlines\nto\nmake\nthe\nscrollview"s\ncontent\ntaller\nthan\nthe\nspace\navailable\nto\nit\nwhich\nshould\nmake\nthe\nscrollview\nstop\nabove\nthe\nbutton\nand\nbecome\nscrollable" />
<TextView
android:padding="5dp"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="taking\nup\lots\nof\nlines\nto\nmake\nthe\nscrollview"s\ncontent\ntaller\nthan\nthe\nspace\navailable\nto\nit\nwhich\nshould\nmake\nthe\nscrollview\nstop\nabove\nthe\nbutton\nand\nbecome\nscrollable" />
<TextView
android:padding="5dp"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="taking\nup\lots\nof\nlines\nto\nmake\nthe\nscrollview"s\ncontent\ntaller\nthan\nthe\nspace\navailable\nto\nit\nwhich\nshould\nmake\nthe\nscrollview\nstop\nabove\nthe\nbutton\nand\nbecome\nscrollable" />
<TextView
android:padding="5dp"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="taking\nup\lots\nof\nlines\nto\nmake\nthe\nscrollview"s\ncontent\ntaller\nthan\nthe\nspace\navailable\nto\nit\nwhich\nshould\nmake\nthe\nscrollview\nstop\nabove\nthe\nbutton\nand\nbecome\nscrollable" />
<TextView
android:padding="5dp"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="taking\nup\lots\nof\nlines\nto\nmake\nthe\nscrollview"s\ncontent\ntaller\nthan\nthe\nspace\navailable\nto\nit\nwhich\nshould\nmake\nthe\nscrollview\nstop\nabove\nthe\nbutton\nand\nbecome\nscrollable" />
<TextView
android:padding="5dp"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="taking\nup\lots\nof\nlines\nto\nmake\nthe\nscrollview"s\ncontent\ntaller\nthan\nthe\nspace\navailable\nto\nit\nwhich\nshould\nmake\nthe\nscrollview\nstop\nabove\nthe\nbutton\nand\nbecome\nscrollable" />
</LinearLayout>
</ScrollView>
<Button
android:id="#+id/button"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:text="Button" />
</RelativeLayout>
Just try adding fillViewport = "true" on your scroll view
Related
I'm trying to create a layout in Andorid. I need a TextView (2 in diagram below) fixed to the bottom of the screen. With content (1 in diagram) comprising of scrollview and editTexts.
The problem I have is when the soft keyboard comes up (3 in diagram), the red box marked 2 also comes up, above the keyboard. I would like the red box to remain offscreen and the entire content to scroll in the space remaining above the soft keyboard.
I've tried putting the red box (2) in the LinearLayout but it never fixes itself to the bottom, there's always a small gap at the bottom of the screen. I've also tried changing android:windowSoftInputMode in the manifest but this isn't the desired affect.
This is what I have:
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent">
<ScrollView
android:layout_alignParentTop="true"
android:layout_alignParentBottom="true"
android:isScrollContainer="false">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical">
<EditText />
<EditText />
</LinearLayout>
</ScrollView>
<TextView
android:id="#+id/3"
android:layout_alignParentBottom="true"
text="3" />
</RelativeLayout>
Any suggestions would be very much appreciated.
All you need to do is switch your activity's windowSoftInputMode flag to "adjustPan". Check the official documentation for more info.
<activity
...
android:windowSoftInputMode="adjustPan">
</activity>
Try using the below layout see if this is what you are looking for..
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent">
<ScrollView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_centerInParent="true"
android:isScrollContainer="false">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical"
>
<EditText
android:layout_width="80dp"
android:layout_height="40dp"
android:id="#+id/ed1"
android:layout_gravity="center_horizontal"
android:layout_marginTop="50dp"
android:layout_marginBottom="50dp"/>
<EditText
android:layout_width="80dp"
android:layout_height="40dp"
android:id="#+id/ed2"
android:layout_gravity="center_horizontal"
android:layout_marginTop="50dp"
android:layout_marginBottom="50dp"/>
</LinearLayout>
</ScrollView>
<TextView
android:id="#+id/btext"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:text="this is 3rd view"
android:layout_marginBottom="20dp"
android:layout_centerHorizontal="true"/>
</RelativeLayout>
TL;DR version, i just removed two lines in your scrollview code:
android:layout_alignParentTop="true"
android:layout_alignParentBottom="true"
with
android:layout_centerInParent="true"
See if that helps!
And any reason why you are using both android:layout_alignParentTop="true"
android:layout_alignParentBottom="true" on scrollview?
Here's one idea that works.
Adjust the layout so that the red box (2) is inside the LinearLayout
Create a small view between the red box and the last EditText
Give the red box and the LinearLayout an id, so we can manage them from the java class.
Your xml should look like this:
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent">
<ScrollView
android:layout_alignParentTop="true"
android:layout_alignParentBottom="true"
android:isScrollContainer="false">
<LinearLayout
android:id="#+id/content"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical">
<EditText />
<EditText />
<View
android:id="#+id/stretcher"
android:layout_width="match_parent"
android:layout_height="0dp" />
<TextView
android:id="#+id/2"
android:layout_gravity="bottom"
text="2" />
</LinearLayout>
</ScrollView>
</RelativeLayout>
Now in your java onActivityCreated add this code:
final View mainLayout = getView();
final View mainContent = getView().findViewById(R.id.content);
final View stretcherView = getView().findViewById(R.id.stretcher);
//Main layout uses weight some, so we can't hard code the size of the circles.
//We must dynamically re-size
mainLayout.getViewTreeObserver().addOnGlobalLayoutListener(new ViewTreeObserver.OnGlobalLayoutListener() {
#Override
public void onGlobalLayout() {
if (android.os.Build.VERSION.SDK_INT >= 16) {
mainLayout.getViewTreeObserver().removeOnGlobalLayoutListener(this);
} else {
mainLayout.getViewTreeObserver().removeGlobalOnLayoutListener(this);
}
//Calculate the desired height of the stretcher view to be the remainder between full screen and content.
int stretchHeight = mainLayout.getHeight() - mainContent.getHeight();
//Apply calculated height remainder to stretched view.
//This enables our bottom box to be pushed to the bottom without obstructing the content when the keyboard appears.
LinearLayout.LayoutParams params = (LinearLayout.LayoutParams) stretcherView.getLayoutParams();
params.height = stretchHeight;
stretcherView.setLayoutParams(params);
}
});
The view listener measures the height of the full view then subtracts the height of the content. This leaves us with the gap between the content and the bottom of the screen. Using the stretcher view we can now push the red box down to the bottom of the page, just as if it was alignParentBottom.
When the keyboard appears, the red box is inside the scroll.
I have a couple of views (consider images). One image (bigger one) should be centered horizontally. Other view (smaller) should be to the left of the bigger view, but it should be centered horizontally at the space to the left of bigger view.
One huge restriction: all these views should be inside the same layout (I think relative layout suits better for this case).
But I can't achieve what I need.
Any help is greatly appreciated.
Try this XML...
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="horizontal" >
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_weight="1" >
<View
android:id="#+id/smallView1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerInParent="true" />
<View
android:id="#+id/smallView2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerInParent="true" />
</RelativeLayout>
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_weight="1" >
<View
android:id="#+id/bigView1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerInParent="true" />
</RelativeLayout>
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_weight="1" >
<View
android:id="#+id/smallView3"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerInParent="true" />
<View
android:id="#+id/smallView4"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerInParent="true" />
</RelativeLayout>
</LinearLayout>
Seems, like this could be done only programmatically.
Main idea:
Create FrameLayout and put all the needed views inside it.
Calculate absolute position on the screen for every view (position of top-left corner for each view). For big view it will be something like: left = (screenWidth - viewWidth) / 2, right = (screenHeight - viewHeight) / 2 (maybe height of statusBar should also be counted).
Place each view at its position by setting FrameLayout.LayoutParams with defined leftMargin, topMargin – top and left coordinate.
This is my layout which is an info window, and its shown where there is new info to show to the user.
The layout should take the whole screen with some transparent background color, and a small text layout:
<?xml version="1.0" encoding="utf-8"?>
<!-- info fragment - used by the fragment to provide info on a specific fragment -->
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res/com.coapps.pico"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:background="#color/background_dark_green" >
//this is the only layout i see in the result. not it's parent's layout...
<RelativeLayout
android:id="#+id/fragment_info_relativelayout_info"
android:layout_width="fill_parent"
android:layout_height="80dp"
android:layout_alignParentTop="true"
android:background="#drawable/background_info_window"
android:clickable="true" >
<ScrollView
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:layout_centerInParent="true"
android:layout_margin="5dp" >
<!-- The info textView -->
<com.coapps.pico.NillanTextView
android:id="#+id/fragment_info_textview_info"
style="#style/text_shadow_black"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_margin="5dp"
android:gravity="left"
android:text="Some Text "
android:textColor="#android:color/white"
app:isBold="true" />
</ScrollView>
<!-- Tap to close -->
<com.coapps.pico.NillanTextView
android:id="#+id/fragment_info_textview_tap_to_close"
style="#style/text_shadow_black"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:layout_alignParentRight="true"
android:gravity="right"
android:paddingRight="5dp"
android:text="#string/button_tap_to_close"
android:textColor="#android:color/white"
app:isBold="true" />
</RelativeLayout>
</RelativeLayout>
I'm adding this layout to another ViewGroup like this:
/**
* Show the info window
*/
public void show()
{
//if the window is not visible
if (!isVisible())
//add window's view
rootView.addView(infoWindowView);
}
this code add the info window into its root view container in the last index.
in result i only see the second RelativeLayout which contains the text but i don't see its parent root layout which supposed to be transparent...
Any ideas why ?
Update:
This is my container:
<?xml version="1.0" encoding="utf-8"?>
<!-- This is the main layout of the application -->
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/fragment_basic_root"
android:layout_width="fill_parent"
android:layout_height="fill_parent" >
</RelativeLayout>
I also had problems with a view in Relative layout that was dependent on the Relative layout's size.
I solved this problem problematically by updating the inner view size
private void update viewSize()
if(rootContainer == null || rootContainer.getLayoutParams() == null)
return;
rootContainer.measure(View.MeasureSpec.makeMeasureSpec(ScalingUtil.getScreenSize().getWidth(), View.MeasureSpec.EXACTLY), View.MeasureSpec.makeMeasureSpec(ViewGroup.LayoutParams.WRAP_CONTENT, View.MeasureSpec.EXACTLY));
RelativeLayout.LayoutParams oldLayoutParams = (RelativeLayout.LayoutParams) rootContainer.findViewById(R.id.deals_card_center_bg).getLayoutParams();
RelativeLayout.LayoutParams layoutParams = new RelativeLayout.LayoutParams(rootContainer.getMeasuredWidth(), rootContainer.getMeasuredHeight());
layoutParams.setMargins(oldLayoutParams.leftMargin, oldLayoutParams.topMargin, oldLayoutParams.rightMargin, oldLayoutParams.bottomMargin);
rootContainer.findViewById(R.id.deals_card_center_bg).setLayoutParams(layoutParams);
How to not have the parent expand
Instead of match_parent on the child, align it to the sibling that dictates the height.
<RelativeLayout ...>
<View
android:id="#+id/element_that_should_match_its_parents_height"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignParentTop="true"
android:layout_alignBottom="#+id/element_that_dictates_height" />
<View
android:id="#+id/element_that_dictates_height"
android:layout_width="match_parent"
android:layout_height="wrap_content" />
</RelativeLayout>
Worked for me, hope it helps. The second View is usually some ViewGroup, that varies in height.
Try change
<RelativeLayout
android:id="#+id/fragment_info_relativelayout_info"
android:layout_width="fill_parent"
android:layout_height="80dp"
android:layout_alignParentTop="true"
android:background="#drawable/background_info_window"
android:clickable="true" >
to
<RelativeLayout
android:id="#+id/fragment_info_relativelayout_info"
android:layout_width="match_parent"
android:layout_height="80dp"
android:layout_alignParentTop="true"
android:layout_alignParentLeft="true"
android:layout_alignParentRight="true"
android:background="#drawable/background_info_window"
android:clickable="true" >
Anyway, why the need of nested RelativeLayout ?
I see how do you add the view, so try also this:
infoWindowView.setLayoutParams(
new LayoutParams(LayoutParams.MATCH_PARENT, LayoutParams.MATCH_PARENT));
rootView.addView(infoWindowView);
I have a data entry type activity and im using a linear layout to space out evenly the sets of textviews and edittexts. Then I have a scroll view that is supposed to make it so the user can scroll while the softkeyboard is up.
If I use android:fillViewport the linearlayout works properly and fills the screen and spreads each item out evenly but then when the keyboard comes up and stops each item being spread out evenly. If i use android:windowSoftInputMode="stateVisible|adjustPan" then the linearlayout remains spread out but the scroll view doesn't work anymore (from all the unsolved posts on this i don't think you can have a working scroll view with adjustPan)
is there any way to have a linearlayout inside a scrollview, with items spread out evenly and still work while the softkeyboard is up with out changing the linearlayout?
<?xml version="1.0" encoding="utf-8"?>
<ScrollView xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fillViewport
>
<LinearLayout
android:gravity="left"
android:orientation="vertical"
android:id="#id/tab2"
android:paddingLeft="40.0dip"
android:paddingTop="0.0dip"
android:paddingRight="40.0dip"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
>
<LinearLayout
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_weight="1.0">
<TextView
android:id="#id/textViewBrand"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="#string/brand" />
<AutoCompleteTextView
android:id="#id/editTextBrand"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
>
</AutoCompleteTextView>
</LinearLayout>
...more linearlayouts with textview and edittext to be spaced out evenly
set the property android:fillViewport="true" in your scrollview it will work
Maybe the ScrollView isn't working because your
android:layout_height attribute
is defined to match_parent. You have to put
wrap_content
Follow This Code, I hope it resolves your Problem
<?xml version="1.0" encoding="utf-8"?>
<ScrollView xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent">
//Your Main Layout
<LinearLayout
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical"
android:weightSum="100">
// First Sub Layout Under Main Layout
<LinearLayout
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="horizontal"
android:layout_weight="10"
android:weightSum="100" >
<TextView
android:id="#+id/textView1"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:text="TextView"
android:layout_weight="70" />
<EditText
android:id="#+id/editText1"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:layout_weight="30" />
</LinearLayout>// Finishing First Sub layout
// Second Sub Layout Under Main Layout
<LinearLayout
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="horizontal"
android:layout_weight="10"
android:weightSum="100" >
<TextView
android:id="#+id/textView2"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:text="TextView"
android:layout_weight="70" />
<EditText
android:id="#+id/editText2"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:layout_weight="30" />
</LinearLayout>// Finishing Second Sub layout
similarly for 3rd,4rth,5th sub layouts and so on........
</LinearLayout> // Finishing Main Layout
</ScrollView> // Finishing ScrollView
you can go over the child views of the LinearLayout and set their size to a fixed size yourself in code using a ViewTreeObserver.OnGlobalLayoutListener.
the following code sets the sizes to not change, so you can use the android:fillViewport option with weights, and then essentially remove the weights, but keep the calculated sizes.
I used this code with some modifications to also make sure child views are distributed evenly in a LinearLayout that is inside a ScrollView, where the LinearLayout is too big for the android:fillViewport option to get the weights to actually work. this was done by doing 2 iterations over the children. first getting the max view's height, and then setting all child views to that max height.
private void distributeViewsEvenlyInLinearLayout() {
ViewTreeObserver observer = linearParentView.getViewTreeObserver();
final ViewTreeObserver.OnGlobalLayoutListener globalLayoutListener = new ViewTreeObserver.OnGlobalLayoutListener() {
#SuppressWarnings("deprecation")
public void onGlobalLayout() {
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN) {
linearParentView.getViewTreeObserver().removeOnGlobalLayoutListener(this);
} else {
linearParentView.getViewTreeObserver().removeGlobalOnLayoutListener(this);
}
for (int i = 0; i < linearParentView.getChildCount(); i++) {
View child = linearParentView.getChildAt(i);
LinearLayout.LayoutParams layoutParams = new LinearLayout.LayoutParams(ViewGroup.LayoutParams.FILL_PARENT, child.getHeight());
child.setLayoutParams(layoutParams);
}
}
};
observer.addOnGlobalLayoutListener(globalLayoutListener);
}
So my layout looks basically like this:
<ScrollView>
<RelativeLayout>
<BunchOfViews/>
<ImageView android:layout_alignParentBottom="true"/>
</RelativeLayout>
</ScrollView>
I have the ScrollView so all of the layout always is visible no matter the height of the screen. The problem is that on a very high screen, I still want my ImageView to be at the bottom. However, a child of a ScrollView don't seem to have a defined bottom. The View is placed at the top of the layout. How can I solve this problem in a neat way?
I ran into the same issue. I never could find a very pleasing solution, but here is how I did it. Maybe someone else has a better way, I hate adding layouts that don't do anything.
My hack was to add a dummy linearlayout at the bottom of the scrollview that has fill_parent to take up all the room and force the scrollview to fill the screen. Then add whatever component I want to that linearlayout.
Here is one of my layouts that does this:
<ScrollView
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:layout_weight="1"
android:fillViewport="true" >
<RelativeLayout
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:layout_marginTop="15px" >
<!-- bunch of components here -->
<LinearLayout
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:layout_below="#+id/spinner"
android:layout_marginTop="5px"
android:gravity="center_horizontal|bottom"
android:paddingTop="2px" >
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:paddingLeft="20px"
android:paddingRight="20px"
android:text="Delete" />
</LinearLayout>
</RelativeLayout>
</ScrollView>
I had the same issue and found this page:
http://www.curious-creature.org/2010/08/15/scrollviews-handy-trick/
Basically, you set the ScrollView's android:fillViewport to true, which will allow the child view to expand to the same height as the ScrollView itself, filling out the space. You then just need to have one of the child controls' layout_height set to fill_parent and layout_weight to 1, causing that control to "spring" to fill the empty space.
Note that if the contents of the ScrollView are already tall enough to fill the ScrollView, the android:fillViewport has no effect, so the setting only kicks in when needed.
My final XML looks like similar to this:
<ScrollView
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:fillViewport="true">
<LinearLayout
android:orientation="vertical"
android:layout_height="wrap_content">
<LinearLayout
android:layout_height="fill_parent"
android:layout_weight="1">
<!-- this expands to fill the empty space if needed -->
</LinearLayout>
<!-- this sits at the bottom of the ScrollView,
getting pushed out of view if the ScrollView's
content is tall enough -->
<ImageView
android:layout_height="wrap_content"
android:src="#drawable/footer_image">
</ImageView>
</LinearLayout>
</ScrollView>
it seems that the linearlayout isn't necessary, all that is important is the fillViewPort.
you could just use
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignBottomParent="true">
now that you have specified the relativelayout to be at least the size of the screen.
its work for me perfectly android:fillViewport="true"
Joel Malone's answer Adding view to bottom of layout inside a scrollview does that trick. My solution is almost the same, except that I use Space widget to do the work of filling the rest height inside the parent layout. Like this:
<ScrollView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fillViewport="true"
>
<LinearLayout
android:orientation="vertical"
android:layout_height="wrap_content"
>
<android.support.v4.widget.Space
android:layout_height="match_parent"
android:layout_weight="1"
/>
<ImageView
android:layout_height="wrap_content"
android:src="#drawable/footer_image"
/>
</LinearLayout>
</ScrollView>
Attention:
fill_parent in the other answers is noted as deprecated for a long time;
Compare to an empty LinearLayout to fill the rest of parent layout, I think Space is much more appropriate(it's designed to do that job.)
Finally, don't forget that important attribute at the beginning of ScrollView: android:fillViewport="true". They together make this trick.
just put this attribute android:fillViewport="true" to your ScrolView
and you will got what you need
On your view that you want to be at the bottom use android:gravity="bottom"
From: http://code.google.com/p/k9mail/source/browse/k9mail/trunk/res/layout/account_setup_basics.xml?r=1314
This should help you:
<RelativeLayout
android:layout_marginTop="-45dip"
android:padding="0dip"
android:layout_alignParentBottom="true"
android:gravity="bottom|right"
android:background="#android:drawable/bottom_bar"
android:layout_height="fill_parent"
android:layout_width="fill_parent">
<Button
android:id="#+id/manual_setup"
android:text="#string/account_setup_basics_manual_setup_action"
android:minWidth="#dimen/button_minWidth"
android:layout_height="wrap_content"
android:layout_width="wrap_content"
android:layout_marginBottom="-4dip"
android:layout_alignParentLeft="true"
android:layout_centerVertical="false"
/>
<Button
android:id="#+id/next"
android:text="#string/next_action"
android:minWidth="#dimen/button_minWidth"
android:layout_height="wrap_content"
android:layout_width="wrap_content"
android:drawableRight="#drawable/button_indicator_next"
android:layout_marginBottom="-4dip"
android:layout_alignParentRight="true"
android:layout_centerVertical="false"
/>
</RelativeLayout>
ScrollView view = new ScrollView( this );
ScrollView.LayoutParams lps = new FrameLayout.LayoutParams( FILL_PARENT, FILL_PARENT, Gravity.CENTER );
LinearLayout layout = new LinearLayout( this );
// what ever you want in the Layout
view.addView( layout, lps );
I tried alot to align the Scroll View to bottom of the screen but thats not possible according to this link.
https://newbedev.com/how-do-i-align-views-at-the-bottom-of-the-screen
The way i found was to create a view with 1dp height and aa id (lets say android:id="#+id/bottomView") at the bottom of your XML page.
now just add these attributes to your scroll view..
<ScrollView
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:scrollbars="vertical"
android:fillViewport="true"
android:layout_alignBottom="#+id/bottomView"
>
Here is how you can use a ConstraintLayout to align the image view at the bottom:
<?xml version="1.0" encoding="utf-8"?>
<ScrollView 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:fillViewport="true">
<androidx.constraintlayout.widget.ConstraintLayout
android:id="#+id/content_layout"
android:layout_width="match_parent"
android:layout_height="wrap_content">
<TextView
android:id="#+id/text_view"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:text="Text 1"
app:layout_constraintBottom_toTopOf="#+id/space_view"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="parent" />
<Space
android:id="#+id/space_view"
android:layout_width="match_parent"
android:layout_height="0dp"
app:layout_constraintBottom_toTopOf="#+id/image_view"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="#+id/text_view" />
<ImageView
android:id="#+id/image_view"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="..."
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="#+id/space_view" />
</androidx.constraintlayout.widget.ConstraintLayout>
</ScrollView>