Develop Reference

How do I right justify a TextView in a Linear Layout?

I am trying to get the TextView, "tv_amount" to stay on the right side of the screen. I have tried using android:gravity="right" but that hasn't been working for me. Anyone have any suggestions?
Image of emulator running this code:
<?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="45dp"
android:gravity="center_vertical"
android:orientation="horizontal">
<ImageView
android:id="#+id/iv_icon"
android:layout_width="40sp"
android:layout_height="40sp"
android:background="#drawable/circle_border"
android:padding="6sp"
android:layout_marginLeft="6dp"
android:src="#drawable/food"/>
<TextView
android:id="#+id/tv_label"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_weight="1"
android:layout_marginStart="12dp"
android:text="Yummy Pizza"
android:textSize="20sp" />
<TextView
android:id="#+id/tv_amount"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginEnd="12dp"
android:gravity="end"
android:text="$25"
android:textSize="25sp" />
</LinearLayout>
I am expecting the transaction or "tv_amount" to stay be right justified so that end of the number is staying towards the right side of the screen.
I tried using :
android:layout_weight="0"
android:layout_gravity="end"
android:gravity="right"
but these don't seem to work obviously. I am a beginner when it comes to android development and can't seem to find any answers that have helped anywhere else. They all say to use android:gravity or some other alternative. Maybe there is something in my code that doesn't allow that.

Try it like this:
Splitting the content into left and right will result in the weight and gravity properties working. Check out this layout below.
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
<TextView
android:id="#+id/tv_title"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:gravity="center"
android:text="Title"
android:textSize="20sp" />
<!--Separate layout aligned to the left, containing an image and a yummy pizza label. -->
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal">
<LinearLayout
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="1"
android:orientation="horizontal">
<ImageView
android:id="#+id/iv_icon"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
/>
<TextView
android:id="#+id/tv_text_left"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Text Left"
android:textSize="16sp" />
</LinearLayout>
<!--Display the pizza price on a separate label aligned to the right -->
<TextView
android:id="#+id/tv_text_right"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:gravity="right"
android:text="Text Right"
android:layout_weight="1"
android:textSize="16sp" />
</LinearLayout>
</LinearLayout>

I am dumb. The issue wasn't with the code in my individual recycler view layout code. It was with my activity_main.xml. I set the recycler_view width to "wrap_content" when it should have been "match_parent." Rookie mistake.

Android: Container XML Layout wrap weight and fill height

I have been battling for a couple of days trying to create a custom layout in Android divided in 3 parts, a "vote" counter container that displays the amount of people that voted a message, a text message container that will contain the text and the author of a message and a button container that will be used to vote up or down a message.
So far I have this code
<?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"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="#+id/containerInner"
>
<!-- # VOTES CONTAINER -->
<RelativeLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="#+id/containerVotes"
android:layout_centerVertical="true"
>
<TextView
android:layout_width="wrap_content"
android:layout_height="fill_parent"
android:id="#+id/votesPost"
android:textStyle="bold"
android:textSize="16sp"
/>
</RelativeLayout>
<!-- MESSAGE CONTAINER -->
<RelativeLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="#+id/containerText"
android:layout_marginLeft="4dp"
android:layout_marginTop="4dp"
android:layout_toRightOf="#+id/containerVotes"
android:background="#color/gray"
>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textColor="#000000"
android:id="#+id/titleGlobus"
/>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="#+id/AutorGlobus"
android:textColor="#000000"
android:textSize="12sp"
android:textStyle="italic"
android:maxWidth="180dp"
android:layout_weight="0.1"
android:layout_below="#+id/titleGlobus"
/>
</RelativeLayout>
<!-- VOTE UP/DOWN CONTAINER -->
<RelativeLayout
android:layout_height="wrap_content"
android:layout_width="wrap_content"
android:id="#+id/containerButtons"
android:layout_alignParentTop="true"
android:layout_toRightOf="#+id/containerText"
android:layout_toEndOf="#+id/containerText"
>
<RelativeLayout
android:layout_height="wrap_content"
android:layout_width="wrap_content"
android:id="#+id/containerButtonUp"
>
<at.markushi.ui.CircleButton
android:layout_width="32dip"
android:layout_height="32dip"
android:src="#mipmap/ic_arrow_drop_up_black_24dp"
app:cb_color="#color/white"
app:cb_pressedRingWidth="8dip"
android:id="#+id/upvote_button"
/>
</RelativeLayout>
<RelativeLayout
android:layout_height="wrap_content"
android:layout_width="wrap_content"
android:id="#+id/containerButtonDown"
android:layout_below="#+id/containerButtonUp"
>
<at.markushi.ui.CircleButton
android:layout_width="32dip"
android:layout_height="32dip"
app:cb_color="#color/white"
app:cb_pressedRingWidth="8dip"
android:src="#mipmap/ic_arrow_drop_down_black_24dp"
android:id="#+id/downvote_button"
/>
</RelativeLayout>
</RelativeLayout>
The Layout I am getting in the phone using the above code is this:
And I want to achieve this:
So there are two main things that I need to achieve here:
Make the RelativeLayout containerText fill the whole height of its superior container.
Alight the Author name to the right of the container, but aligned just at the end of the "message" TextView.
I have been trying to fix the fix issue changing the height of the containerText container to fill_parent without success, changing all the way up to the main container all the height properties to fill_parent.
If I try to align the author name to the right using alignParentRight=true , the RelativeLayout then takes the whole space of the screen, pushing out the buttons container. I have also tried changing the way I am positioning the different layouts respect others, changing the toLeftOf or toRightTo, with terrible results.
Any help would be highly appreciated as I am stuck with this issue.
Cheers!

Try this:
<!-- MESSAGE CONTAINER -->
<RelativeLayout
android:layout_width="wrap_content"
<!-- Set this height to match_parent -->
android:layout_height="match_parent"
android:id="#+id/containerText"
android:layout_marginLeft="4dp"
android:layout_marginTop="4dp"
android:layout_toRightOf="#+id/containerVotes"
android:background="#color/gray"
>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textColor="#000000"
android:id="#+id/titleGlobus"
/>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="#+id/AutorGlobus"
android:textColor="#000000"
android:textSize="12sp"
android:textStyle="italic"
android:maxWidth="180dp"
android:layout_weight="0.1"
<!-- Removed below tag and added alignParentBottom and alignParentRight -->
android:layout_alignParentBottom="true"
android:layout_alignParentRight="true"
/>
</RelativeLayout>

ListView displaying problems

I have a listview that consists three columns. The first one is an ImageView, the second and third one are textviews (see code blow).
I want the list to be aligned like this:
the icon and the date should always been shown completely !!
the text in the middle should show as much chars as possible
the date should always be on the right of the right side
With the XML below it looks ok on my Nexus 4. But on the asus tablet the date should be more on the right and the coloumn in the middle should show more text (screenshot 1). On the AVD (screenshot 2) the coloumn in the middle should be smaller and the date should be shown completely.
Can anyone tell me how to change the XML? Thanks!
<?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:padding="5dp" >
<ImageView
android:id="#+id/logo"
android:layout_width="50px"
android:layout_height="50px"
android:layout_marginLeft="5px"
android:layout_marginRight="20px"
android:layout_marginTop="5px"
android:src="#drawable/social_chat"
android:layout_weight="0"
>
</ImageView>
<TextView
android:id="#+id/label"
android:layout_width="0px"
android:layout_height="fill_parent"
android:layout_marginTop="0px"
android:text="#+id/label"
android:textAppearance="?android:attr/textAppearanceLarge"
android:layout_weight="50"
android:maxLines="1"
android:singleLine="true"
>
</TextView>
<TextView
android:id="#+id/last_changed"
android:layout_width="0px"
android:layout_height="fill_parent"
android:layout_marginTop="15px"
android:layout_marginLeft="5px"
android:text="#+id/last_changed"
android:textAppearance="?android:attr/textAppearanceSmall"
android:layout_weight="50"
android:maxLines="1"
android:singleLine="true"
>
</TextView>

Off the top of my head your layout would look something 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:padding="5dp" >
<ImageView
android:id="#+id/logo"
android:layout_width="50dp"
android:layout_height="50dp"
android:layout_marginLeft="5dp"
android:layout_marginRight="20dp"
android:layout_marginTop="5dp"
android:src="#drawable/social_chat" />
<TextView
android:id="#+id/label"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="#+id/label"
android:textAppearance="?android:attr/textAppearanceLarge"
android:layout_weight="1"
android:singleLine="true" />
<TextView
android:id="#+id/last_changed"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="15dp"
android:layout_marginLeft="5dp"
android:text="#+id/last_changed"
android:textAppearance="?android:attr/textAppearanceSmall"
android:singleLine="true" />
</LinearLayout>
The key here is to use wrap_content for the views that just need to keep their size, and set a weight for the middle view, which you want to fill the rest of the row.
Some useful tips.-
fill_parent is deprecated, use match_parent instead
When a view has no children, you can just close it with />
singleLine="true" is enough to have a singleLined TextView
You'll usually want to use dp units instead of px

This should do your job. I have put the imageview on the parents left, the date on the parents right and the label to the rightof image and to the left of date.It should work fine for you. Margins , padding please put yourself
<?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:id="#+id/logo"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:src="#drawable/social_chat" />
<TextView
android:id="#+id/last_changed"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentRight="true"
android:singleLine="true" />
<TextView
android:id="#+id/label"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textAppearance="?android:attr/textAppearanceLarge"
android:layout_toLeftOf="#id/last_changed"
android:layout_toRightOf="#id/logo"
android:singleLine="true" />
</RelativeLayout>

How to optimise this layout XML file to match my idea?

I've created this fragment named searchfragment. Below there is the layout XML file of the searchfragment. Unfortunatelly the design isn't that smooth as I want it to be.
Here's what I wanted it to look like:
First row: Welcoming text (that works)
Second row: Search input field (that works, too)
Thirt row (and here it gets complicated): There should be a text named "Search for" and then a Spinner with the item you can search for (e.g. name, year, price). Then there's the Search button. Next thing is that you can sort the output. Therefore there's a text with "Sort for", a Spinner with the critirion and a Sort button. Best case the search section should be align to the left and the sort for to the right, but still centered.
Forth row: Output field.
Now as the elements are all present on my device, they are not in the graphical layout of Eclipse. I've tried for hours now to get it working but it's kind of hard if you're not sseing your objects.
Long text - short task: Please help me optimise my design.
searchfragment.xml:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_gravity="center"
android:orientation="vertical" >
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="10dp"
android:layout_gravity="center"
android:text="#string/welcome" />
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal" >
<EditText
android:id="#+id/edit_message"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginLeft="20dp"
android:layout_marginRight="20dp"
android:hint="#string/edit_message" />
</LinearLayout>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_gravity="center|center_horizontal"
android:layout_marginTop="8dp" >
<TextView
android:id="#+id/textView2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="#string/search_for" />
<Spinner
android:id="#+id/criterion"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginLeft="5dp"
android:layout_marginRight="5dp"
android:entries="#array/searcharray"
android:prompt="#string/prompt" />
<Button
android:id="#+id/btnSubmit"
android:layout_width="136dp"
android:layout_height="match_parent"
android:layout_marginLeft="5dp"
android:layout_marginRight="5dp"
android:background="#drawable/android"
android:onClick="sendMessage"
android:text="#string/button_send" />
<TextView
android:id="#+id/textView1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="#string/sort_for"
android:textAppearance="?android:attr/textAppearanceMedium" />
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:orientation="vertical" >
<Spinner
android:id="#+id/sort"
android:layout_width="wrap_content"
android:layout_height="0dip"
android:layout_weight="1"
android:entries="#array/sortarray"
android:prompt="#string/prompt" />
</LinearLayout>
<Button
android:id="#+id/sort_button"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginLeft="5dp"
android:layout_marginRight="5dp"
android:background="#drawable/android"
android:onClick="sortAgain"
android:text="#string/button_send" />
</LinearLayout>
<ScrollView
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent">
<TextView
android:id="#+id/showResults"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textAppearance="?android:attr/textAppearanceMedium" />
</ScrollView>
</LinearLayout>
I've added a photo of the current design. The space with the red frame around it is the third "row" and should be changed. The second spinner is (I don't know why) much too wide. It should be that wide as the first one. Then all the elements should be about the same heigth and the elements should be centered.

You're on the right track with your layout, but the reason your second Spinner is taking up so much room is that you've set it's layout_weight to 1, and as it's the only one with a layout_weight, it's taking up the rest of the space that's free.
If you want the items to take up a relative amount of space on the screen, then you could stick with using layout_weight and give all of your items that property.
For example, just for your third row you would get rid of the LinearLayout around your Spinner, change some of the layout_width properties and give all of your items a layout_weight.
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_gravity="center|center_horizontal"
android:layout_marginTop="8dp" >
<TextView
android:id="#+id/textView2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_weight="1"
android:text="#string/search_for" />
<Spinner
android:id="#+id/criterion"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_weight="1"
android:layout_marginLeft="5dp"
android:layout_marginRight="5dp"
android:entries="#array/searcharray"
android:prompt="#string/prompt" />
<Button
android:id="#+id/btnSubmit"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:layout_weight="1"
android:layout_marginLeft="5dp"
android:layout_marginRight="5dp"
android:background="#drawable/android"
android:onClick="sendMessage"
android:text="#string/button_send" />
<TextView
android:id="#+id/textView1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_weight="1"
android:text="#string/sort_for"
android:textAppearance="?android:attr/textAppearanceMedium" />
<Spinner
android:id="#+id/sort"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_weight="1"
android:entries="#array/sortarray"
android:prompt="#string/prompt" />
<Button
android:id="#+id/sort_button"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_weight="1"
android:layout_marginLeft="5dp"
android:layout_marginRight="5dp"
android:background="#drawable/android"
android:onClick="sortAgain"
android:text="#string/button_send" />
</LinearLayout>
This is going to give all of your items an equal weighting, so the TextViews will be the same size as the Spinners which will be the same size as the Buttons. Play around with the layout_weight attribute to make them more relative, for example if you want the Buttons to be twice the size as the Spinners, set their layout_weight to 2.

Android relative layout placement problems

I have been having problems creating a relative layout in XML for a list item to be used for a series of items in a ListView. I have tried for hours and am tearing my hair out trying to get it to look how I want but cannot get everything to appear in the correct spot and not overlap or mis-align. I can get the first image and next two textviews in place but cannot get the last textview and imageview.
I have attached a wireframe style image of how I am trying for it to look and was wondering if someone could help me out?
The ImageView on the right is a set icon of the full height of the row with padding around it?
The two TextViews take up the majority of the width. The Address textview has the possibility of the text being long so it may need to get truncated if it runs out of space, or ideally have the font size shrink?
The next TextView will just hold a small string of max 5 characters.
The last ImageView is a small arrow to imply that this list item is clickable for more infomation. It needs to be centred like shown.
I would like if the icon, last textview, and last image always be in the same place/alignment down the list.
If someone could offer some assistance on this I would be so grateful.
Cheers guys

For anyone interested I managed to get this working. I know how much of a pain it is to go searching for an answer to a problem and it was never completely resolved.
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/RelativeLayout"
android:layout_width="fill_parent"
android:layout_height="?android:attr/listPreferredItemHeight"
android:padding="6dip">
<ImageView
android:id="#+id/Icon"
android:layout_margin="5dip"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerVertical="true" />
<TextView
android:id="#+id/topLine"
android:layout_height="wrap_content"
android:layout_width="fill_parent"
android:lines="1"
android:layout_toRightOf="#+id/Icon"
android:layout_toLeftOf="#+id/distance"
android:textColor="#color/blacktext"
android:textSize="20dip"
android:text="Name" />
<TextView
android:id="#+id/bottomLine"
android:layout_height="wrap_content"
android:layout_width="fill_parent"
android:lines="1"
android:layout_toRightOf="#+id/Icon"
android:layout_below="#+id/topLine"
android:layout_toLeftOf="#+id/distance"
android:textColor="#color/blacktext"
android:textSize="15dip"
android:text="Address" />
<TextView
android:id="#+id/distance"
android:layout_height="wrap_content"
android:layout_toLeftOf="#+id/arrow"
android:layout_centerVertical="true"
android:layout_width="wrap_content"
android:lines="1"
android:textColor="#color/blacktext"
android:textSize="12dip"
android:text="100m" />
<ImageView
android:id="#+id/arrow"
android:layout_height="wrap_content"
android:layout_width="wrap_content"
android:layout_margin="5dip"
android:layout_alignParentRight="true"
android:layout_centerVertical="true"
android:src="#drawable/redarrow"/>
</RelativeLayout>

I've done something similar (except the image on left)
It might help you:
<?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:gravity="center_vertical"
android:minHeight="?android:attr/listPreferredItemHeight"
android:orientation="vertical">
<LinearLayout
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_toRightOf="#+id/TextView01"
android:id="#+id/LinearLayout01"
android:gravity="center_vertical"
android:orientation="horizontal">
<LinearLayout
android:layout_width="0dip"
android:layout_weight="1"
android:paddingRight="8dip"
android:layout_height="wrap_content"
android:id="#+id/LinearLayout01"
android:orientation="vertical">
<TextView
android:text="#string/Birthday"
android:id="#+id/txtTitlevalue"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:singleLine="true"
android:ellipsize="end"
android:layout_weight="1"
android:textAppearance="?android:attr/textAppearanceLarge"></TextView>
<TextView
android:text="1960-01-01"
android:id="#+id/txtSubvalue"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="-4dip"
android:singleLine="true"
android:ellipsize="end"
android:layout_weight="10"
android:textAppearance="?android:attr/textAppearanceSmall"></TextView>
</LinearLayout>
<TextView
android:text="2"
android:id="#+id/txtNumber"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textAppearance="?android:attr/textAppearanceLarge"
android:textStyle="bold"
android:layout_marginRight="10dip"
android:layout_gravity="center_vertical|right"></TextView>
<TextView
android:text="weeks"
android:id="#+id/txtUnit"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginRight="10dip"
android:layout_gravity="center_vertical|right"></TextView>
</LinearLayout>
<!-- <View
android:background="#drawable/black_white_gradient"
android:layout_width="fill_parent"
android:layout_height="1dp"
android:layout_marginTop="2dip"
android:layout_marginBottom="2dip"
android:clickable="true"
android:focusable="true"
android:layout_below="#+id/LinearLayout01" /> -->
</LinearLayout>