Develop Reference

Android button text moves

Ive got the problem that, when i click one of the buttons shown in xml below, the text on the button jumps down one line. So if the button is 1 line, no text is shown. If the button is 2 lines, only the first line is shown, in the buttom of the button.
Nothing in the onClick method changes the layout.
Heres the XML
<?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:id="#+id/layout_main">
<ScrollView xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent">
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical" >
.. a few other layouts and controls that works fine
<TableLayout
android:id="#+id/tableLayout276"
android:layout_width="match_parent"
android:layout_height="wrap_content" >
<TableRow
android:id="#+id/TableRow10"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_gravity="left"
android:gravity="center"
android:orientation="vertical" >
<Button
android:id="#+id/BtnRet"
android:layout_width="120dp"
android:layout_height="wrap_content"
android:text="Ret"
android:gravity="center"
android:textSize="18dp" />
<Button
android:id="#+id/BtnVisningsType"
android:layout_width="120dp"
android:layout_height="wrap_content"
android:text="Decimaltal"
android:gravity="center"
android:textSize="18dp" />
<Button
android:id="#+id/BtnFunktioner"
android:layout_width="120dp"
android:layout_height="wrap_content"
android:text="Funktioner"
android:gravity="center"
android:textSize="18dp" />
</TableRow>
</TableLayout>
.. a few other layouts and controls that works fine
</LinearLayout>
</ScrollView>
</LinearLayout>
Now, if i change the layout_width on the buttons to wrap_content, it all works fine (got the idea from When changing textview, the text on a button below the textview moves down. Help! ) - except the buttons now obviusly dont have the same width, and it looks messy.
Does anyone have any idea why this happens, and how i can both keep the text, and decide the size of the buttons?

This adds complexity to the layout but might be a solution.
Add a LinearLayout to your table row and use weights to control precise layout of your buttons. Something like this:
<TableRow
android:id="#+id/TableRow10"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_gravity="left"
android:gravity="center"
android:orientation="vertical" >
<LinearLayout android:layout_height="match_parent"
android:layout_width="match_parent"
android:weightSum="3"
android:orientation="horizantal"/>
<Button
android:id="#+id/BtnRet"
android:layout_weight="1"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:text="Ret"
android:gravity="center"
android:textSize="18dp" />
<Button
android:id="#+id/BtnVisningsType"
android:layout_weight="1"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:text="Decimaltal"
android:gravity="center"
android:textSize="18dp" />
<Button
android:id="#+id/BtnFunktioner"
android:layout_weight="1"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:text="Funktioner"
android:gravity="center"
android:textSize="18dp" />
</LinearLayout>
</TableRow>
Caveats:
Might give a performance hit
Typed from memory, please excuse any typos
Not tested
use padding/margin to adjust precise sizing
A RelativeLayout might also work.

Android ExpandableListAdapter View layout not displaying as desired :-(

I have an XML layout for a view representing one item as displayed by a ExpandableListAdapter. (The XML that is duplicated once for each list item, not the main activity layout). I initially tried a LinearLayout but this hid the final of the three widgets (a image button). I understand why that doesn't work but I then tried a RelativeLayout but the text view does not show.
I'll display the relative layout first along with a screenshot and also append my initial layout and screenshot at the bottom FWIW. Thanks for any help.
<?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="55dip"
android:orientation="horizontal" >
<CheckBox
android:id="#+id/chkParent"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:checked="false"/>
<EditText
android:id="#+id/edtParent"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_toLeftOf="#id/chkParent"
android:textSize="17dip"
android:inputType="text"
android:hint="#string/strItem"/>
<ImageButton
android:id="#+id/btnExpand"
android:layout_height="wrap_content"
android:layout_width="wrap_content"
android:layout_alignParentRight="true"
android:layout_toLeftOf="#id/edtParent"
android:src="#drawable/dark_expand"
android:clickable="true"
android:hint="#string/strViewSubItems"
android:contentDescription="#string/strViewSubItems"
android:background="#null"/>
</RelativeLayout>
Original linear layout:
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="55dip"
android:orientation="horizontal" >
<CheckBox
android:id="#+id/chkParent"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:checked="false"/>
<EditText
android:id="#+id/edtParent"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:textSize="17dip"
android:inputType="text"
android:hint="#string/strItem"/>
<ImageButton
android:id="#+id/btnExpand"
android:layout_height="wrap_content"
android:layout_width="wrap_content"
android:src="#drawable/dark_expand"
android:clickable="true"
android:hint="#string/strViewSubItems"
android:contentDescription="#string/strViewSubItems"
android:background="#null"/>
</LinearLayout>

Pretty sure your toLeftOf attributes should be toRightOf attributes. Give that a shot and see what happens.
Actually, your EditText should be set toRightOf="#id/chkParent" and toLeftOf="#id/btnExpand. Your ImageButton doesn't even need the toRightOf modifier, the alignParentRight attribute should cover it.

scroll view inside scroll layout?

i need your help. Basically I created a scrollView as a parent layout of an activity . Now i need to add many widgets inside the activity including an edittext containing large text values set inside this edittext which is also scrollable , but my text inside an edit text not scrolling smoothly? i need text area like widgets , my xml code shown below
<?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"
>
<LinearLayout
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:orientation="vertical"
android:background="#498BF4">
<TextView
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="Registration"
android:gravity="center_horizontal"
android:textSize="20dip"/>
</LinearLayout>
<ScrollView
android:id="#+id/scroll"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
>
<LinearLayout
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical"
>
<TextView
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="User_id:*"
android:textSize="15dip"/>
<EditText
android:layout_width="fill_parent"
android:layout_height="40dip"
android:id="#+id/user">
</EditText>
<TextView
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="FirstName:*"
android:textSize="15dip"/>
<EditText
android:layout_width="fill_parent"
android:layout_height="40dip"
android:id="#+id/fname">
</EditText>
<TextView
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="LastName:*"
android:textSize="15dip"/>
<EditText
android:layout_width="fill_parent"
android:layout_height="40dip"
android:id="#+id/lname">
</EditText>
<TextView
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="Email:*"
android:textSize="15dip"/>
<EditText
android:layout_width="fill_parent"
android:layout_height="40dip"
android:id="#+id/email">
</EditText>
<TextView
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="Currency:*"
android:textSize="15dip"/>
<Spinner
android:id="#+id/spinner1"
android:layout_width="fill_parent"
android:layout_height="40dip">
</Spinner>
<TextView
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="Date of Birth:*"
android:textSize="15dip"/>
<EditText
android:layout_width="fill_parent"
android:layout_height="40dip"
android:id="#+id/dob">
</EditText>
<LinearLayout
android:id="#+id/agepermission"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical"
android:visibility="gone">
<EditText
android:layout_width="fill_parent"
android:layout_height="150dip"
android:id="#+id/ageterms"
android:maxLines="10"
android:textSize="10dip"
android:text="#string/hello"
>
</EditText>
<CheckBox
android:text="I have permission to use the website from parent/guardian.*"
android:id="#+id/checkBox1"
android:layout_width="wrap_content"
android:layout_height="wrap_content">
</CheckBox>
<TextView
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="Parent Name:*"
android:textSize="15dip"/>
<EditText
android:layout_width="fill_parent"
android:layout_height="40dip"
android:id="#+id/pname">
</EditText>
<TextView
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="Parent Email:*"
android:textSize="15dip"/>
<EditText
android:layout_width="fill_parent"
android:layout_height="40dip"
android:id="#+id/pemail">
</EditText>
</LinearLayout>
<TextView
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="Terms and conditions:*"
android:textSize="15dip"/>
<EditText
android:layout_width="fill_parent"
android:layout_height="200dip"
android:id="#+id/terms"
![android:text="i need your help. Basically I created a scrollView as a parent layout of an activity . Now i need to add many widgets inside the activity including an edittext containing large text values set inside this edittext which is also scrollable , but my text inside an edit text not scrolling smoothly? i need text area like widgets i need your help. Basically I created a scrollView as a parent layout of an activity . Now i need to add many widgets inside the activity including an edittext containing large text values set inside this edittext which is also scrollable , but my text inside an edit text not scrolling smoothly? i need text area like widgets i need your help. Basically I created a scrollView as a parent layout of an activity . Now i need to add many widgets inside the activity including an edittext containing large text values set inside this edittext which is also scrollable , but my text inside an edit text not scrolling smoothly? i need text area like widgets i need your help. Basically I created a scrollView as a parent layout of an activity . Now i need to add many widgets inside the activity including an edittext containing large text values set inside this edittext which is also scrollable , but my text inside an edit text not scrolling smoothly? i need text area like widgets"][2]
android:inputType="textMultiLine"
android:textSize="10dip"
>
</EditText>
<TextView
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="By clicking on 'Sign Up' button below you are agreeing to the Terms of Service above and both the Program Policy and the Privacy Policy."
android:textSize="15dip"/>
<Button
android:text="Sign Up"
android:id="#+id/button1"
android:layout_width="wrap_content"
android:layout_height="40dip"
>
</Button>
</LinearLayout>
</ScrollView>
</LinearLayout>

use below tag in your edittext , if it input is multiline
android:inputType="textMultiLine"

I am having the same problem here.
So far I know the only solution is to disable the scrolling of the ScrollView when the EditText got focus.

Make a component fill all available space on screen

I want something like this:
But I don't know how to resize the TextView so it gets all the available space on screen which is not ocuppied by the EditText or the Buttons. May I do it in the code, or in the xml?
At XML I tried putting the TextView into a FrameLayout, but it makes no difference. Currently looks like:
<?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">
<FrameLayout
android:layout_width="fill_parent"
android:layout_height="wrap_content">
<TextView
android:id="#+id/consola"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:scrollbars = "vertical"
android:text="#string/hello"/>
</FrameLayout>
<EditText
android:id="#+id/comando"
android:layout_width="fill_parent"
android:layout_height="wrap_content"/>
<LinearLayout
android:orientation="horizontal"
android:layout_width="fill_parent"
android:layout_height="wrap_content">
<Button
android:text="Conectar"
android:id="#+id/boton_conectar"
android:layout_width="wrap_content"
android:layout_weight="0.5"
android:layout_height="wrap_content">
</Button>
<Button
android:text="Enviar"
android:id="#+id/boton_enviar"
android:layout_width="wrap_content"
android:layout_weight="0.5"
android:layout_height="wrap_content">
</Button>
</LinearLayout>
</LinearLayout>
At the code I'm just checking if the Buttons are pushed with Listeners. One of them, when pushed, gets the text at the EditText, and appends it to the TextView. It works, and TextView gets higher, while EditText and Buttons downs one line. If I go on appending lines, finaly EditText and Buttons get out of the screen. I want to avoid this behaviour, and accomplish to get this 3 widgets sticked to the bottom of the screen.

Use the android:layout_weight=1 attribute, like the buttons on the bottom of the form. That will assign most of the space to it and anything that's left to the rest of the elements.

It's all about the weight. This should give you what you want:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="match_parent">
<TextView android:text="TextView"
android:id="#+id/textView1"
android:layout_weight="1"
android:layout_width="match_parent"
android:layout_height="0dp">
</TextView>
<EditText android:id="#+id/editText1"
android:layout_width="match_parent"
android:layout_height="wrap_content">
<requestFocus></requestFocus>
</EditText>
<LinearLayout android:id="#+id/linearLayout1"
android:layout_width="match_parent"
android:layout_height="wrap_content">
<Button android:text="Button"
android:id="#+id/button1"
android:layout_height="wrap_content"
android:layout_weight="1"
android:layout_width="0dp">
</Button>
<Button android:text="Button"
android:id="#+id/button2"
android:layout_height="wrap_content"
android:layout_width="0dp"
android:layout_weight="1">
</Button>
</LinearLayout>
</LinearLayout>
(Side note: When using weight, setting the corresponding height/width to 0dp sometimes gets around some weird behavior.)

Try android:fillViewport="true".

Nesting Relative layout inside Linear Layout

I have the following code in my layout.xml.
<?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">
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="horizontal" android:layout_height="wrap_content" android:layout_width="fill_parent">
<EditText android:hint="#string/feed_url"
android:id="#+id/feedUrl" android:textSize="14dp" android:inputType="textUri"
android:layout_marginRight="45dp" android:layout_height="wrap_content" android:layout_width="fill_parent">
</EditText>
<Button android:id="#+id/getGraph"
android:text="#string/get"
android:layout_toRightOf="#id/feedUrl"
android:layout_alignParentRight="true"
android:layout_height="wrap_content" android:width="45dp" android:layout_width="wrap_content">
</Button>
</RelativeLayout>
<WebView android:id="#+id/wv1" android:layout_height="wrap_content"
android:layout_width="fill_parent" />
</LinearLayout>
In the eclipse Plugin layout creator, the EditText and button are shown properly. (see the below screenshot)
But on the device and emulator, the button is not hidden. (see the below screenshot)
Any idea why the button is getting hidden in the device?

Try the following changes to your code. You have to define the button first, since it is of fixed width, and then place the EditText to fill the rest of the space, placed to the left of the button. The button also has to be defined first (prior to Android 2.2, that is).
<RelativeLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_height="wrap_content"
android:layout_width="fill_parent">
<Button
android:id="#+id/getGraph"
android:text="#string/get"
android:layout_alignParentRight="true"
android:layout_height="wrap_content"
android:layout_width="wrap_content"
/>
<EditText
android:hint="#string/feed_url"
android:id="#+id/feedUrl"
android:textSize="14dp"
android:inputType="textUri"
android:layout_marginRight="45dp"
android:layout_height="wrap_content"
android:layout_width="fill_parent"
android:layout_toLeftOf="#id/getGraph"
/>
</RelativeLayout>

I cannot see the button in the layout builder... the reason, I think is that the EditText width is fill parent so it fills parent pushing the button out. If you must use RelativeLayout, you need to define width of the EditText explicitly. Otherwise you may want to switch to horizontal LinearLayout and set weight of the edit box to "1".
Also, there are invalid options for RelativeLayout:
xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="horizontal

You can also use LinearLayout instead of RelativeLayout to archive this. You can use android:layout_weight to make Button not be overlaid by EditText. Following is the sample xml that may work:
<LinearLayout android:orientation="horizontal"
android:layout_height="wrap_content" android:layout_width="fill_parent">
<EditText android:hint="#string/feed_url"
android:id="#+id/feedUrl" android:textSize="14dp"
android:inputType="textUri" android:layout_marginRight="45dp"
android:layout_height="wrap_content" android:layout_width="fill_parent" />
<Button android:id="#+id/getGraph" android:text="#string/get"
android:layout_height="wrap_content" android:width="45dp"
android:layout_width="wrap_content"
android:layout_weight="1" />
</LinearLayout>