Develop Reference

relative layout gravity center not aligning correctly

I'm trying to center the chilldren of my relative layout in the center of my screen but it's acting like it's aligned to the top of the parent and I can't figure out why.
my .XML:
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_gravity="center"
android:gravity="center"
android:background="#f70909">
<ImageView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="#+id/imageView2"
android:adjustViewBounds="true"
android:src="#drawable/dice"/>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textAppearance="?android:attr/textAppearanceMedium"
android:id="#+id/textMessage"
android:layout_centerHorizontal="true"
android:layout_below="#+id/imageView2" />
<EditText
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="#+id/editUserSplash"
android:hint="Username"
android:gravity="center"
android:layout_centerHorizontal="true"
android:layout_below="#+id/textMessage" />
<EditText
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="#+id/editPasswordSplash"
android:hint="Password"
android:layout_centerHorizontal="true"
android:gravity="center"
android:layout_below="#+id/editUserSplash" />
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Login"
android:id="#+id/btnSplash"
android:layout_centerHorizontal="true"
android:layout_below="#+id/editPasswordSplash" />
<ProgressBar
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="#+id/prgSplash"
style="#android:style/Widget.DeviceDefault.ProgressBar.Large"
android:layout_centerHorizontal="true"
android:indeterminate="true"
android:layout_below="#+id/btnSplash" />
</RelativeLayout>
I've tried making the parent a relativelayout without success and it won't align to the bottom either. Initially I thought the layout wasn't filling the whole screen but since its height and width are match_parent I don't think that's the problem. in android studio it is displaying correctly though so I must be missing something small.
I also tried using the gravity and layoutgravity parameters and a combination of the two but without success
Edit: I need the views to stay in the same formation relative to each other but centered in the screen vertically.
Edit 2:I set the background of the RelativeLayout to red and got this: So the relativelayout isn't filling my screen.
Edit 3:
Edit 4:

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:background="#f70909">
<RelativeLayout
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_centerInParent="true">
<ImageView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="#+id/imageView2"
android:adjustViewBounds="true"
android:src="#drawable/dice"/>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textAppearance="?android:attr/textAppearanceMedium"
android:id="#+id/textMessage"
android:layout_centerHorizontal="true"
android:layout_below="#+id/imageView2" />
<EditText
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="#+id/editUserSplash"
android:hint="Username"
android:gravity="center"
android:layout_centerHorizontal="true"
android:layout_below="#+id/textMessage" />
<EditText
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="#+id/editPasswordSplash"
android:hint="Password"
android:layout_centerHorizontal="true"
android:gravity="center"
android:layout_below="#+id/editUserSplash" />
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Login"
android:id="#+id/btnSplash"
android:layout_centerHorizontal="true"
android:layout_below="#+id/editPasswordSplash" />
<ProgressBar
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="#+id/prgSplash"
style="#android:style/Widget.DeviceDefault.ProgressBar.Large"
android:layout_centerHorizontal="true"
android:indeterminate="true"
android:layout_below="#+id/btnSplash" />
</RelativeLayout>
</RelativeLayout>

Try something 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">
<ImageView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="#+id/imageView2"
android:adjustViewBounds="true"
android:layout_centerInParent="true"/>
<LinearLayout
android:orientation="vertical"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:gravity="center"
android:layout_centerInParent="true">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textAppearance="?android:attr/textAppearanceMedium"
android:id="#+id/textMessage" />
<EditText
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="#+id/editUserSplash"
android:hint="Username"
android:gravity="center" />
<EditText
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="#+id/editPasswordSplash"
android:hint="Password"
android:gravity="center" />
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Login"
android:id="#+id/btnSplash" />
<ProgressBar
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="#+id/prgSplash"
style="#android:style/Widget.DeviceDefault.ProgressBar.Large"
android:indeterminate="true" />
</LinearLayout>
</RelativeLayout>
UPDATE:
If setting the xml in an AlertDialog, it's possible that there is a space allotted at the bottom. I google and found this alert_dialog.xml for reference. It seems that there is a buttonPanel at the bottom with a minimum height of 54dip.
<LinearLayout android:id="#+id/buttonPanel"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:minHeight="54dip"
android:orientation="vertical" >
<LinearLayout
style="?android:attr/buttonBarStyle"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal"
android:paddingTop="4dip"
android:paddingStart="2dip"
android:paddingEnd="2dip"
android:measureWithLargestChild="true">
<LinearLayout android:id="#+id/leftSpacer"
android:layout_weight="0.25"
android:layout_width="0dip"
android:layout_height="wrap_content"
android:orientation="horizontal"
android:visibility="gone" />
<Button android:id="#+id/button1"
android:layout_width="0dip"
android:layout_gravity="start"
android:layout_weight="1"
style="?android:attr/buttonBarButtonStyle"
android:maxLines="2"
android:layout_height="wrap_content" />
<Button android:id="#+id/button3"
android:layout_width="0dip"
android:layout_gravity="center_horizontal"
android:layout_weight="1"
style="?android:attr/buttonBarButtonStyle"
android:maxLines="2"
android:layout_height="wrap_content" />
<Button android:id="#+id/button2"
android:layout_width="0dip"
android:layout_gravity="end"
android:layout_weight="1"
style="?android:attr/buttonBarButtonStyle"
android:maxLines="2"
android:layout_height="wrap_content" />
<LinearLayout android:id="#+id/rightSpacer"
android:layout_width="0dip"
android:layout_weight="0.25"
android:layout_height="wrap_content"
android:orientation="horizontal"
android:visibility="gone" />
</LinearLayout>
</LinearLayout>

I think this may help you
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_height="match_parent"
android:layout_width="match_parent"
android:gravity="center">
<RelativeLayout
android:orientation="vertical"
android:layout_width="wrap_content"
android:layout_height="wrap_content">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Login"
android:textStyle="bold"
android:textAppearance="?android:attr/textAppearanceLarge"
android:id="#+id/textMessage"
android:layout_alignParentTop="true"
android:layout_centerHorizontal="true" />
<EditText
android:layout_margin="10dp"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:id="#+id/editUserSplash"
android:hint="Username"
android:layout_below="#+id/textMessage"
android:gravity="center" />
<EditText
android:layout_margin="10dp"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:id="#+id/editPasswordSplash"
android:hint="Password"
android:layout_below="#+id/editUserSplash"
android:gravity="center" />
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Login"
android:id="#+id/btnSplash"
android:layout_below="#+id/editPasswordSplash"
android:layout_centerHorizontal="true" />
</RelativeLayout>

Thanks to ank I was able to figure out that the reason why the RelativeLayout didn't fill my screen is that I used it in an alertDialog. So RelativeLayouts parent isn't the screen but the alertDialog. Since an alertDialog wraps its content it doesn't fill the entire screen.

Adjust width with respect to another element

I have this layout:
...
<LinearLayout
android:layout_alignParentBottom="true"
android:layout_width="match_parent"
android:orientation="horizontal"
android:gravity="center"
android:layout_height="60dp">
<TextView
android:text="#string/n_alb"
android:layout_width="wrap_content"
android:layout_height="match_parent"/>
<EditText
android:layout_width="wrap_content" <!-- ?? -->
android:layout_height="match_parent"/>
</LinearLayout>
...
I want the TextView's width to be wrap_content whereas the EditText's width fills the rest of the space in the parent.
I know I can use weightSum and layout_weight but isn't there another way?
Thanks in advance

Try This
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="60dp"
android:layout_alignParentBottom="true"
android:gravity="center"
android:orientation="horizontal" >
<TextView
android:id="#+id/yourtextview"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:text="#string/n_alb" />
<EditText
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_toRightOf="#+id/yourtextview" >
</EditText>
</RelativeLayout>

If you have to longer text in textview then you can use it simple way.
<LinearLayout
android:orientation="horizontal"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignParentTop="true"
android:layout_alignParentLeft="true"
android:layout_alignParentStart="true">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Android Development Android Development"
android:background="#fff000"
android:id="#+id/textView2" />
<EditText
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="#+id/editText2"
android:singleLine="true"
android:text="hello developer How are you"
android:background="#ff0000"
/>
</LinearLayout>

ImageView getting very small under a linear layout

In one of my screens, I expect to acheive this kind of a layout
Highest importance being the images correctly scaled. These images i am giving are of adequate resolution and works fine on another fragment layout.
My layout.xml looks like this
<?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:background="#drawable/stadiumbg"
android:orientation="vertical" >
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_margin="10dp"
android:background="#drawable/listview_item"
android:orientation="horizontal" >
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_weight="1"
android:gravity="left"
android:orientation="vertical" >
<ImageView
android:id="#+id/image1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_margin="5dp"
android:adjustViewBounds="true"
android:padding="5dp"
android:scaleType="fitCenter" />
<TextView
android:id="#+id/title1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textAppearance="?android:attr/textAppearanceMedium" />
</LinearLayout>
<TextView
android:id="#+id/text1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="70%"
android:textAppearance="?android:attr/textAppearanceLarge" />
<TextView
android:id="#+id/text2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="80%"
android:textAppearance="?android:attr/textAppearanceLarge" />
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_weight="1"
android:gravity="right"
android:orientation="vertical" >
<ImageView
android:id="#+id/image2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_margin="5dp"
android:adjustViewBounds="true"
android:padding="5dp"
android:scaleType="fitCenter" />
<TextView
android:id="#+id/title2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textAppearance="?android:attr/textAppearanceMedium" />
</LinearLayout>
</LinearLayout>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="#drawable/listview_item"
android:orientation="vertical" >
<Button
android:id="#+id/button1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Vote" />
<Button
android:id="#+id/button2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Down Vote" />
</LinearLayout>
</LinearLayout>
Everything else is great. The drawable listview_item is something that has been given to provided rounded corners, and tested in a listview with the above said images. Perfectly fine.
But in this layout, both the images gets super downscaled. It is like this.
wasting all that space for no reason.
What I have tried:
adjustViewBounds set to false
Scaletype as fitXY
Any idea to get What I want?

Change the width and height of the ImageView. Instead of:
android:layout_width="wrap_content"
android:layout_height="wrap_content"
Use:
android:layout_width="200dp"
android:layout_height="200dp"
Change the numbers to fit what you want.

How to mirror text position?

I'm trying to lay some text out on left and right that have a mirroring position as below.
What's happening here is that the last row in the right column ("Some more text") is the widest so it pushes the two rows above further to the right. For the sake of symmetry, the left column is pushed further to the left. The text values are supposed to be dynamic. Does anyone know how the layouts should be designed?
Here's my code (sadly, it doesn't even align to the right!):
<LinearLayout
android:layout_height="0dp"
android:layout_width="match_parent"
android:layout_weight="1">
<RelativeLayout android:layout_height="match_parent"
android:layout_width="0dp"
android:layout_weight="1">
<RelativeLayout android:id="#+id/description_30"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentRight="true">
<TextView android:id="#+id/title_30"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="30 DAYS"/>
<TextView android:id="#+id/num_ds_30"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="#id/title_30"/>
<TextView android:id="#+id/num_bs_30"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="#id/num_ds_30"/>
</RelativeLayout>
</RelativeLayout>
<RelativeLayout android:id="#+id/description_today"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="1"
android:layout_toRightOf="#id/description_30">
<TextView android:id="#+id/title_today"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="right"
android:text="TODAY"/>
<TextView android:id="#+id/num_ds_today"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="right"
android:layout_below="#id/title_today"/>
<TextView android:id="#+id/num_bs_today"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:gravity="right"
android:layout_below="#id/num_ds_today"/>
</RelativeLayout>
</LinearLayout>

You can achieve something like that by nesting LinearLayouts. The outer LinearLayout would have an orientation=horizontal, and the two inner LinearLayout an orientation of vertical with each having a layout_weight=1 and the second (right) LinearLayout would also have gravity="right".
The code would be something like this.
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="horizontal">
<LinearLayout
android:layout_width="0dp"
android:layout_height="wrap_content"
android:orientation="vertical"
android:layout_weight="1">
<TextView
... />
</LinearLayout>
<LinearLayout
android:layout_width="0dp"
android:layout_height="wrap_content"
android:orientation="vertical"
android:layout_weight="1">
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="vertical"
android:gravity="right">
<TextView
... />
</LinearLayout>
</LinearLayout>
</LinearLayout>

I think using a RelativeLayout and aligning the TextViews to the left/right is a good approach. Like this:
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent" >
<TextView
android:id="#+id/Text1_Left"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true" />
<TextView
android:id="#+id/Text2_Left"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_below="#id/Text1_Left" />
<TextView
android:id="#+id/Text3_Left"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_below="#id/Text2_Left" />
<TextView
android:id="#+id/Text1_Right"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentRight="true"
android:layout_toRightOf="#id/Text1_Left"
android:gravity="right" />
<TextView
android:id="#+id/Text2_Right"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentRight="true"
android:layout_below="#id/Text1_Right"
android:layout_toRightOf="#id/Text2_Left"
android:gravity="right" />
<TextView
android:id="#+id/Text3_Right"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentRight="true"
android:layout_below="#id/Text2_Right"
android:layout_toRightOf="#id/Text1_Left"
android:gravity="right" />
</RelativeLayout>

Set TextView width according to other View's width

I have a ImageView, the image is loaded from the net and can vary in width.
Below I have a TextView with a description of the image. I want the TextView to be exactly as wide as the ImageView.
My try was this:
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center_horizontal"
android:orientation="vertical" >
<ImageView
android:id="#+id/iv"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center_horizontal" />
<TextView
android:id="#+id/imagedescription"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_gravity="center_horizontal"
android:textAppearance="#style/SmallTextGray" />
</LinearLayout>
which somehow works as the TextView's width is set accoring to that of the ImageView, but the TextView end after 2 lines:
I know I could set the TextView's width programmatically after I know the image's width, but is there also a way to do it in the XML layout?

I don't know if it will work, but try doing in your code, after load the image:
textView.setWidth(imageView.getDrawable().getIntrinsicWidth());

With a small change of layout: replace LinearLayout with a RelativeLayout:
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="wrap_content"
android:layout_height="wrap_content" >
<ImageView
android:id="#+id/iv"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentTop="true"
android:layout_centerHorizontal="true" />
<TextView
android:id="#+id/imagedescription"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignLeft="#+id/iv"
android:layout_alignRight="#+id/iv"
android:layout_below="#+id/iv"
android:layout_marginTop="8dp"
android:gravity="center_horizontal"
android:textAppearance="#style/SmallTextGray" />
</RelativeLayout>
This way the TextView is always below imageView and its bounds are aligned to imageViews

You can use weight like this:
<LinearLayout
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:weightSum="5">
<Button
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="1"
android:text="1" />
<Button
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="3"
android:text="2" />
<Button
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="1"
android:text="3" />

You can use the wight property in xml and give equal weight to both imageview and textview. then both size will be equal

In your case do this:
<ImageView
android:id="#+id/iv"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_weight="1"
android:layout_gravity="center_horizontal" />
<TextView
android:id="#+id/imagedescription"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_gravity="center_horizontal"
android:layout_weight="1"
android:textAppearance="#style/SmallTextGray" />
</LinearLayout>

Try This.This will work
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:layout_gravity="center_horizontal"
android:orientation="vertical" >
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="fill_parent"
android:layout_gravity="center_horizontal"
android:orientation="vertical" >
<ImageView
android:id="#+id/iv"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center_horizontal"
/>
<TextView
android:id="#+id/imagedescription"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_gravity="center_horizontal"
android:typeface="monospace" />
</LinearLayout>
</LinearLayout>

This works for me:
<?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:layout_gravity="center_horizontal"
android:orientation="vertical">
<LinearLayout android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center_horizontal"
android:orientation="vertical">
<ImageView
android:id="#+id/iv"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="#drawable/controller"
android:layout_gravity="center_horizontal"/>
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="wrap_content">
<TableLayout
android:layout_width="match_parent"
android:layout_height="match_parent">
<TableRow>
<TextView
android:layout_width="wrap_content"
android:text="asdasdasasasdasdasdasdasdasdasdadasdasdasdasdasdasdasdasdasdasdasdasdasdasdasdasdasdasdasdsadasdasdasdasdasdasdasdasdasdasdasdasdasdasdasdasdsdasdasdasdsadsadsadasdasdsadsadsadasdasdasdasdasdasddasdasdasdasdasdasdasdsadasdasdasdasdasdasdsadasdasdsa..."/>
</TableRow>
</TableLayout>
</RelativeLayout>
</LinearLayout>
</LinearLayout>