I have a simple XML Layout, in which I would like to place a Button in the bottom right corner.
I first tried android:layout_gravity="bottom|right"
However, the result was the button gravitating toward the right side, but not the bottom.
I then tried "center" and that worked, but it remained unchanged in combination with "bottom".
It appears that something is stopping the button from gravitating to the bottom.
Any help is appreciated.
The Layout in which the button is placed has a gravity attribute, which will give you this effect. Eg:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical" android:layout_width="fill_parent"
android:layout_height="fill_parent" android:gravity="bottom|right">
<Button android:layout_width="wrap_content"
android:layout_height="wrap_content"></Button>
</LinearLayout>
Maybe the layout where you are placing this button does not go to the bottom of the screen.
Use hierarchyviewer to see what is happening. And the code posted by Cesar should give you something actually working...
Use RelativeLayout instead of LinearLayout. Not only does it really do what you want, but it actually uses less processing and displays more quickly than LinearLayout.
Instead of a LinearLayout, define your space with a RelativeLayout like:
<RelativeLayout
android:layout_width="fill_parent"
android:layout_height="fill_parent"
>
Then, to put your button at the bottom right, add this to your button:
<Button android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:layout_alignParentRight="true"
/>
Cheers,
-scott
PS: as always, I haven't tested this code, just typing in as I remember things.
Related
is not auto generating XML codes for relative layout, it only works for constraint layout.
When I try to position a view inside a relative layout it only gets positioned at the top corner of the screen.
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".MainActivity">
<Button
android:id="#+id/button7"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Button" />
</RelativeLayout
What should I do?
I faced the same issue and the i tried the following step;
Click on the magnet icon (next to the eye icon, top left, next to the Palette menu) so that it's not crossed out: this turns on Autoconnect.
this will now help you to move the button where ever you want to place it.
Try it and let me know.
Yes if you pull the component on ConstraintLayout, it will guess what you want and set the attributes for you.
For RelativeLayout, you need to make the attribute view visible and edit from there. You need to edit parameters like these:
android:layout_below="#id/name"
android:layout_alignParentLeft="true"
android:layout_toLeftOf="#+id/times"
I have a edittext and a button in a relative layout. Here is the xml:
<?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="wrap_content" >
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_marginBottom="5sp" >
<Button
android:id="#+id/action_home_button"
android:layout_width="35sp"
android:layout_height="35sp"
android:layout_alignParentLeft="true"
android:layout_centerVertical="true"
android:background="#drawable/home_button" />
<EditText
android:id="#+id/action_search"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerVertical="true"
android:layout_toRightOf="#+id/action_home_button"
android:focusable="true"
android:focusableInTouchMode="true"
android:hint="Some hint..."
android:textColor="#FFFFFF"
android:textColorHint="#DDDDDD" />
</RelativeLayout>
<ImageView
android:layout_width="match_parent"
android:layout_height="5sp"
android:layout_alignParentBottom="true"
android:background="#EC9D21" />
</RelativeLayout>
The problem is that the button is centered in the RelativeLayout just fine, but my EditText is aligned to the top of the layout. Is there anything that I'm missing? Thank you in advance.
Edit Above I updated my xml. I set this as a custom view of my action bar. But that should not make a difference, since the button has no problem aligning to center vertical. Thanx
Edit EditText should be aligned center vertical
The standard EditTexts in some themes seem to have some built in padding or margin around and/or under it. If you wish to eliminate this issue, then I would heavily suggest either using a nine patch, background color, or some other form of custom background.
Trying to set a negative bottom margin or something crazy might fix the issue for one standard EditText, but you have to be careful between Android versions as their EditTexts can have different themes and give rather unexpected behavior.
As for why the theme designers chose to have this gap underneath is beyond me. My best guess would be that is their way of "saving face" when the developer doesn't add a margin between vertically aligned EditTexts?
+1 for Uxonith. Changing the background seemed to do the trick eg. android:background="#000000". For me this works fine, because I had to change the background anyways, but if you need the standard edit text, this will not be a solution.
i made a simple test for an android app to ScrollView a TextView, almost there are no errors but i get a Warning ( This ScrollView layout or its LinearLayout parent is useless) and i dont know what to do . i wish i get your help
here is the code:
<LinearLayout android:id="#+id/LinearLayout01"
android:layout_width="fill_parent" android:layout_height="fill_parent"
android:orientation="vertical"
xmlns:android="http://schemas.android.com/apk/res/android">
<ScrollView android:layout_width="wrap_content"
android:layout_height="wrap_content" android:layout_weight="1">
<TextView android:id="#+id/TextView01" android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="#string/hi"/>
</ScrollView>
</LinearLayout>
Take a second to think about it! If the linear layout takes up all the space it could take up (say 200x400 pixels), then the Scroll view takes up as much space as the linear layout can take up (200x400 pixels), then your linear layout has just become useless! (in theory)
Try to add more stuff after you scroll view -- this may make your warning go away
should be the top most parent... Remove your LinearLayout from top ant you are done.
After searching for a few hours, I was unable to find the exact answer to my situation. I'm currently using a RelativeLayout and all I have is a background image and a button. The problem I'm having is placing the button in the exact location I want it to be (a little offset from the center).
My first attempt was to modify the layout_margins of the button. While this worked for the current emulator I was working with (3.7in WVGA), the positioning of the button was slightly/way off for a different screen size (such as 3.2in HVGA).
I then attempted to modify the padding of the parent layout but got the same issue. My XML looks like this:
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:paddingLeft="98dip" android:paddingBottom="68dip" android:background="#drawable/background">
<Button android:id="#+id/starttimer"
android:background="#drawable/button"
android:layout_width="wrap_content" android:clickable="true" android:layout_height="wrap_content" android:layout_alignParentBottom="true"/>
</RelativeLayout>
Please let me know if I'm completely off with my approach. It seems like an extremely simple problem, and I'm bummed out that it's taken me so long to try to get it. Thanks for any help!
I take it that you want to center the button on the bottom of the parent with a little offset, try layout_centerHorizontal then add your preferred margin.
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:paddingLeft="98dip" android:paddingBottom="68dip" android:background="#drawable/background">
<Button android:id="#+id/starttimer"
android:background="#drawable/button"
android:layout_width="wrap_content" android:clickable="true" android:layout_height="wrap_content" android:layout_alignParentBottom="true" android:layout_centerHorizontal="true" android_marginLeft="5dp"/>
</RelativeLayout>
Absolute Layout is used for absolute positions of the control.
I have a LinearLayout, which only contains one button. I want this button to be centered vertically and aligned to the right. I tried many ways, but I couldn't make this button centered vertically. It is always aligned to the top. I also tried to put a button in RelativeLayout, the button can not be centered vertically either.
The XML is as below. Is there anything wrong with this layout? Thanks.
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:background="#E8E3E4">
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="More"
android:layout_gravity="right" />
</LinearLayout>
Changing android:layout_gravity="right" to android:layout_gravity="right|center_vertical" didn't resolve the problem in my question.
You say in words that you want this to be centered vertically, but you have not said in XML that you want this to be centered vertically. You will need to adjust your android:layout_gravity attribute to specify both right and center_vertical.
However, I would recommend you go back to RelativeLayout. Use android:layout_centerVertical="true" and android:layout_alignParentRight="true" to make the button be centered vertically and right-aligned.
Also, bear in mind that your current LinearLayout has android:layout_height="wrap_content", which means there is nothing to be centered inside. You need the container to have more space than its contents (e.g., fill_parent) if you want centering to have any meaning.
This code will put the button in vertical center and on the right screen
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical"
android:gravity="center_vertical">
<Button
android:id="#+id/btnClick"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="right"
android:text="Click Me" />
</LinearLayout>
Try adding android:gravity="center" to your LinearLayout. I remember having read somewhere that that might do the trick.