Develop Reference

Textview width doens't adjust after change content

I'm trying to update the content of a TextView with the data introduced by an EditText. But after change the text, if the original text (hint) was bigger than the new text, the width doens't change.
I have the next string in the Hint Attribute of the TextView, "Please, introduce a amount". If I put 25'5, for example, the textview doesn't resize it width.
First Screen
Second Screen
The Euro symbol is invisible behind the textview, and It's shown after insert some value.
The piece of code for the Amount:
<RelativeLayout
android:id="#+id/rlImporte"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="#drawable/rel_layout_colors"
android:clickable="true"
android:paddingTop="8dp"
android:paddingBottom="8dp">
<ImageView
android:id="#+id/lst_img3"
android:layout_width="50dp"
android:layout_height="50dp"
android:layout_alignParentLeft="true"
android:layout_alignParentTop="true"
android:layout_margin="5sp"
android:layout_marginTop="5dp"
android:src="#drawable/icon_importe"/>
<TextView
android:id="#+id/tvImporte"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentTop="false"
android:layout_marginTop="5dp"
android:layout_toRightOf="#+id/lst_img3"
android:text="#string/IMPORTE_TITLE_STRING"
android:textColor="#android:color/black"
android:textSize="#dimen/title_text_size" />
<TextView
android:id="#+id/tvImporteDesc"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="#+id/tvImporte"
android:layout_toRightOf="#+id/lst_img3"
android:textColor="#android:color/darker_gray"
android:textSize="#dimen/subtitle_text_size"
android:visibility="visible"
android:hint="#string/IMPORTE_PLACEHOLDER_STRING"
android:textColorHint="#android:color/darker_gray"
android:ellipsize="start"
android:layout_marginRight="4dp" />
<TextView
android:id="#+id/tvEuroSymbol"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_below="#+id/tvImporte"
android:layout_toRightOf="#+id/tvImporteDesc"
android:textColor="#android:color/darker_gray"
android:textSize="#dimen/subtitle_text_size"
android:visibility="gone"
android:hint="#string/euro_symbol"
android:textColorHint="#color/blue_quantion"
android:ellipsize="start"
android:paddingLeft="4dp" />
</RelativeLayout>

You seem like you want to change the width of tvImporteDesc dynamically. The short of it is that Android does not allow this, though some people have developed work arounds. (Toggling the visibility that some answers suggest did not work for me). Similar questions:
Change Relative layout width and height dynamically
WRAP_CONTENT not working after dynamically adding views
Since you are trying to fit text on the same line it might be easier to use a single TextView for that line of text, and concatenate the euro symbol?

How to match drawableleft borders with its parent edittext's borders?

I am trying to add a drawableleft to an Edittext:
<EditText
android:id="#+id/editUserName"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:drawableLeft="#drawable/icon_email"
android:hint="#string/login_identity_hint"
android:textSize="12sp" />
Here is how it looks like:
As you see, the image does not match its parent's borders, there is padding from left, bottom and top even though i do not set any padding. What can i do about it?
I also tried the following approach:
<RelativeLayout
android:id="#+id/editUserNameContainer"
android:layout_width="match_parent"
android:layout_height="wrap_content" >
<ImageView android:id="#+id/img"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:background="#drawable/icon_email"
android:layout_alignParentLeft="true"/>
<EditText
android:layout_toRightOf="#+id/img"
android:id="#+id/editUserName"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:drawablePadding="5dp"
android:hint="hint"
android:textSize="12sp" />
</RelativeLayout>
But this time, it looks like the following: The image and edittext's heights do not match and there is a small gap between them:
Thanks.

I am thinking the only way you can get it to be how you want is to do something like this....
Remove android:drawablePadding="5dp" from EditText
Remove android:layout_toRightOf="#+id/img" from EditText
Add android:paddingLeft="50dp" to EditText
Add android:layout_alignParentLeft="true" to ImageView
This will just put the image over the top of your edit text, and using the padding to move the text in the edit text box to the right a bit after the image. You may need to make adjustments to the image view to make it fit just right
Let me know how this works!
<ImageView android:id="#+id/img"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:background="#drawable/icon_email"
android:layout_alignParentLeft="true"/>
<EditText
android:layout_alignParentLeft="true"
android:id="#+id/editUserName"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:paddingLeft="50dp"
android:hint="hint"
android:textSize="12sp" />

Right align TextView using gravity in RelativeLayout

I am trying to get an editText to sit on the right edge of my layout, with a button to its left, as follows:
<RelativeLayout
android:id="#+id/FindClientLayout"
android:layout_width="#dimen/third_width"
android:layout_height="#dimen/half_height"
android:layout_alignParentLeft="false"
android:layout_alignParentRight="true"
android:layout_alignParentTop="false"
android:layout_below="#id/HeaderLayout"
android:layout_margin="#dimen/fragment_separation"
android:layout_toRightOf="#id/scrollViewRecommend"
android:background="#drawable/login_border" >
<TextView
android:id="#+id/textViewFindClient"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentRight="true"
android:layout_alignParentTop="true"
android:text="#string/find_client"
android:textAppearance="?android:attr/textAppearanceLarge"
android:textColor="#color/Black" />
<EditText
android:id="#+id/editTextClient"
android:layout_width="#dimen/input_text_width"
android:layout_height="wrap_content"
android:gravity="center_vertical|right"
android:inputType="text"/>
<Spinner
android:id="#+id/spinnerClientList"
android:layout_width="#dimen/input_text_width"
android:layout_height="wrap_content"
android:layout_below="#id/editTextClient"/>
<Button
android:id="#+id/buttonDoFind"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:gravity="center_vertical"
android:layout_toLeftOf="#id/editTextClient"
android:text="#string/find" />
</RelativeLayout>
The button is invisible, and the result looks like this:
I assume the button is invisible because the editText is left-aligned and overlays it or pushes it out of the layout frame. Why is are the editText and spinner left aligned rather than right-aligned? Also, why is the editText not centered vertically?

Edit you xml file like this and check for result
<TextView
android:id="#+id/textViewFindClient"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentRight="true"
android:layout_alignParentTop="true"
android:text="#string/find_client"
android:textAppearance="?android:attr/textAppearanceLarge"
android:textColor="#color/Black" />
<EditText
android:id="#+id/editTextClient"
android:layout_width="#dimen/input_text_width"
android:layout_height="wrap_content"
android:layout_alignParentRight="true"
android:inputType="text"/>
<Spinner
android:id="#+id/spinnerClientList"
android:layout_width="#dimen/input_text_width"
android:layout_height="wrap_content"
android:layout_below="#id/editTextClient"/>
<Button
android:id="#+id/buttonDoFind"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:gravity="center_vertical"
android:layout_toLeftOf="#id/editTextClient"
android:text="#string/find" />
this should solve your problem which is , you are using gravity to place the edittext on right but gravity is actually use to position the content of view not the view itself.
If you still face problem leave a comment

android:gravity="center_vertical|right"
indicates the content in the edittext will be right aligned and in center_vertical postion
If you want to right align you can use alignParentRight="true" or toRightOf="id_to_which_it_relate_to"

You can't align RelativeLayout child views with just gravity.
Try to use android:layout_centerVertical="true" and android:layout_alignParentRight="true" instead

align Button to left of RelatativeLayout and TextView to right. Keep the EditText in between TextView and Button.

Android layout space-filling problem

I'm having real difficulty coming up with a layout which works. I have a view which fills the width of the screen. It contains three sub-views:
Some text
A number in parentheses after the main text
A button
The button is right-aligned, and the text items are left-aligned one after the other, as shown:
| Some heading text (n) [button] |
The problem is controlling what happens when the text is too long. I want it like this, so that the number is always visible just to the right of the main text. The main text should be truncated if needed so the other two views remain visible.
| Some very very long headin... (n) [button] |
The closest I've got which succesfully truncates the main text results in the (n) always being right-aligned next to the button even when the main text is short enough to fit. That's not what I want.
How would you approach this?
I'm not posting any of my current XML yet, lest it prejudice anyone's suggestions.

I do not believe there's any xml layout for that. My guess is that you will need to extend TextView and measure the text length inside onDraw(...), adjusting the text accordingly through some iteration (i.e., removing one character at a time until the text fits the canvas)
I just found another question that is quite similar to yours: Ellipsize only a section in a TextView . No other answer than ellipsize in the middle.
Another thoughts:
I'm wondering if it would work to have one textview with the main text (ellipsize left, wrap_content) and another with the number in the parenthesis (wrap_content), both inside an horizontal linear layout. That layout would be inside a relative layout and layout_toLeftOf the button, which would be wrap_content, layout_alignParentRight.
Does it make any sense? I don't have Eclipse now to test it myself. Not sure if the (n) textview would be lost behind the button or not with a long text.
Alternatively (and less interesting), you can setup one single relative layout with the two textviews all layout_toRightOf and the button aligned to the right (layout_alignParentRight) and set the max witdth ot the first textview (android:maxWidth). You would need to set up different layouts for different screens, though.
An example with a fixed max width that will work as required:
<?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"
>
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="click me"
android:id="#+id/bt1"
android:layout_alignParentRight="true"
/>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="short text"
android:lines="1"
android:ellipsize="end"
android:id="#+id/t1"
android:layout_alignParentLeft="true"
/>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="(n)"
android:lines="1"
android:id="#+id/n1"
android:layout_toRightOf="#id/t1"
/>
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="click me"
android:id="#+id/bt2"
android:layout_below="#id/bt1"
android:layout_alignParentRight="true"
/>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="very long text that will not fit in any layout, regardless of the size of the screen"
android:lines="1"
android:ellipsize="end"
android:id="#+id/t2"
android:layout_below="#id/bt1"
android:layout_alignParentLeft="true"
android:maxWidth="220dp"
/>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="(n)"
android:lines="1"
android:id="#+id/n2"
android:layout_below="#id/bt1"
android:layout_toRightOf="#id/t2"
/>
</RelativeLayout>

Try a linearlayout, set the weight of the text view as 1,, and set ellipsis as TruncateAt.MIDDLE. Check this layout
<?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="wrap_content">
<TextView android:id="#+id/text" android:layout_width="0dp"
android:layout_height="wrap_content" android:lines="1"
android:ellipsize="middle" android:gravity="left"
android:layout_weight="1" />
<Button android:layout_width="wrap_content"
android:layout_height="wrap_content" />
</LinearLayout>

The key is the ordering of the items as this is the order they are measured, in order to ensure your button and (n) text get enough space in the overall layout:
<RelativeLayout
android:layout_width="fill_parent"
android:layout_height="fill_parent">
>
<Button
android:id="#+id/button"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentRight="true"
/>
<TextView
android:id="#+id/middle"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:gravity="left"
android:layout_toLeftOf="#id/button"
android:text="(n)"
/>
<TextView
android:id="#+id/title"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_toLeftOf="#id/middle"
android:layout_alignParentLeft="true"
android:gravity="left"
android:ellipsize="end"
android:text="Some really long to text to make this flow over"
android:lines="1"
android:maxLines="1"
/>
</RelativeLayout>

Problem with sizes of EditText and Button in Android

I want to make the edittext width the same size as button. My EditText is currently very small. I use relative layout.
<TextView
android:id="#+id/aha4"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textSize="17dip"
android:text="Vzdevek:"
android:layout_below="#id/aha3" />
<EditText android:id="#+id/nick"
android:layout_height="wrap_content"
android:layout_width="wrap_content"
android:layout_below="#id/nivo"
android:layout_toRightOf="#id/aha4"/>
<Button android:id="#+id/poslji"
android:text="Pošlji"
android:layout_height="wrap_content"
android:layout_width="20dip"
android:typeface="serif" android:textStyle="bold"
android:layout_alignParentRight="true"
android:layout_below="#id/nivo"
android:layout_toRightOf="#id/nick"/>
What i currently get is this:
alt text http://www.shrani.si/f/1Z/x8/2lWB3f8p/device.png
What is the appropriate layout_width for edittext and button?

As you are using something like a row to show the TextView, EditText and button, you can try to use TableLayout: http://developer.android.com/guide/tutorials/views/hello-tablelayout.html
Also, make sure you set android:layout_width="wrap_content" so that the EditText use as much space as possible.

Try to assign equal weight to both button and edit text
Yeah, you're right about weight.
As a hack you can do this. Not exactly right though.
<RelativeLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="wrap_content"
android:layout_height="wrap_content">
<TextView
android:id="#+id/aha4"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textSize="17dip"
android:text="Vzdevek:" />
<Button
android:id="#+id/poslji"
android:text="Pošlji"
android:layout_height="wrap_content"
android:layout_width="wrap_content"
android:paddingLeft="40dip"
android:paddingRight="40dip"
android:typeface="serif"
android:textStyle="bold"
android:layout_alignParentRight="true" />
<EditText
android:id="#+id/nick"
android:layout_height="wrap_content"
android:layout_width="wrap_content"
android:layout_toRightOf="#id/aha4"
android:layout_toLeftOf="#id/poslji" />
</RelativeLayout>

I managed to solve it with specifying minWidth and maxWidth for EditText.