Develop Reference

creating a new linear layout

i created button and other...
but now when i want to create a three buttons green,red,blue they are not showing up i want them to be directly down the button1 but they are not showing up i wish you can help me this is the error im getting -xml documents must start and end within the same entity the error is showing in the last last last linearlayout
this is the code im having problem with
<?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" >
<LinearLayout
android:id="#+id/linearLayout1"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_weight="1"
android:orientation="vertical" >
<TextView
android:id="#+id/secondLine"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="#string/Greetings"
android:textSize="20sp" />
<Button
android:id="#+id/Button1"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="#string/hello" />
</LinearLayout>
<RelativeLayout
android:id="#+id/relativeLayout1"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_weight="1" >
</RelativeLayout>
<LinearLayout
android:id="#+id/linearLayout2"
android:layout_width="fill_parent"
android:layout_height="20dp"
android:orientation="horizontal" >
<TextView
android:id="#+id/thirdLine"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:layout_weight="1"
android:layout_gravity="center"
android:background="#ff0000"
android:textColor="#000000"
android:text="red" />
<TextView
android:id="#+id/fourthLine"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:layout_weight="1"
android:layout_gravity="center"
android:background="#00ff00"
android:textColor="#000000"
android:text="green" />
<TextView
android:id="#+id/fifthLine"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:layout_weight="1"
android:layout_gravity="center"
android:background="#0000ff"
android:textColor="#000000"
android:text="blue" />
<RelativeLayout
android:id="#+id/relativeLayout2"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_weight="1" >
</RelativeLayout>
</LinearLayout>
this is a picture for the red blue green buttons where to be while mine are down
https://www.dropbox.com/s/73grdc0iff3ql3u/Untitled.png
this is what i reached to till now but i want them to be equally distributed like the picture above
https://www.dropbox.com/s/73grdc0iff3ql3u/Untitled.png

you have not closed the below linear layout tag in your xml.
"<"LinearLayout
android:id="#+id/linearLayout2"
android:layout_width="fill_parent"
android:layout_height="20dp"
android:orientation="horizontal" ">"

You need one more </LinearLayout> at the end of your xml file. At the minute, only 2 of the 3 LinearLayout's are being closed.
EDIT
The reason your Buttons are appearing at the bottom is because of this:
<RelativeLayout
android:id="#+id/relativeLayout1"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_weight="1" >
</RelativeLayout>
I'm not sure what purpose this serves in your application, but removing that will fix your problem.

Replace your xml with following code
<?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" >
<LinearLayout
android:id="#+id/linearLayout1"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical"
android:weightSum="10" >
<TextView
android:id="#+id/secondLine"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:textSize="20sp" />
<Button
android:id="#+id/Button1"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="HelloWord" />
</LinearLayout>
<LinearLayout
android:id="#+id/linearLayout2"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal"
android:layout_marginTop="5dp"
android:weightSum="10" >
<TextView
android:id="#+id/thirdLine"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="3.3"
android:background="#ff0000"
android:text="red"
android:textColor="#000000"
android:gravity="center" />
<TextView
android:id="#+id/fourthLine"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="3.4"
android:background="#00ff00"
android:text="green"
android:textColor="#000000"
android:gravity="center" />
<TextView
android:id="#+id/fifthLine"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="3.3"
android:background="#0000ff"
android:text="blue"
android:textColor="#000000"
android:gravity="center"/>
</LinearLayout>
</LinearLayout>
Hope it will help you.

My items in my listView are not aligning properly?

rather than explain what's happening, here's a screen-grab:
As you can see my item list is aaaalll over the shop. Going to paste both activity_main.xml and another one that formats the list, list_row.xml
ACTIVITY_MAIN.XML
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:background="#121212">
<ImageView
android:id="#+id/imageView1"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:src="#drawable/logo" />
<TextView
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="#string/main_title"
android:textColor="#33b5e5"
android:background="#1f1f1f"
android:textStyle="bold"
android:textSize="14sp"/>
<ListView
android:id="#+id/android:list"
android:background="#121212"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:dividerHeight="2dip"/>
</LinearLayout>
LIST_ROW.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="?android:attr/listPreferredItemHeight"
android:padding="6dip"
android:background="#121212">
<TableLayout
android:layout_width="fill_parent"
android:layout_weight="1"
android:layout_height="fill_parent"
android:stretchColumns="*"
android:background="#121212">
<TableRow>
<ImageView
android:id="#+id/icon"
android:padding="2dip"
android:background="#121212"/>
<TextView
android:id="#+id/description"
android:padding="2dip"
android:textSize="18sp"
android:textColor="#ffffff"
android:singleLine="true"
android:background="#121212"/>
</TableRow>
</TableLayout>
</LinearLayout>

Try giving weights to ImageView and TextView like android:layout_weight as the ratio you want.
And dont forget to make android:layout_width = "match_parent" otherwise weights will have no effect..

remove the Table layout
and use this
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="64dp"
android:background="#121212"
android:orientation="horizontal"
android:padding="6dip" >
<ImageView
android:id="#+id/icon"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:background="#121212"
android:padding="2dip"
android:src="#drawable/instructions" />
<TextView
android:id="#+id/description"
android:layout_width="0dp"
android:layout_weight="1"
android:layout_height="match_parent"
android:background="#121212"
android:padding="2dip"
android:singleLine="true"
android:text="tomer"
android:textColor="#ffffff"
android:textSize="18sp" />
</LinearLayout>

android align element at bottom of the screen

I am using android:layout_alignParentBottom="true" to align at parent bottom but for this particular case is not valid. Parent is a relative layout that has fixed size and bigger that screen height. Now I need to place a textview aligned at bottom of screen and not parent bottom. How to reach it? thank you.
<?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="600dp" >
<RelativeLayout
android:id="#+id/blogLayout"
android:layout_width="fill_parent"
android:layout_height="fill_parent">
<WebView
android:id="#+id/webviewBlog"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:textColor="#android:color/black"
android:scrollbars="none"
android:fitsSystemWindows="true" />
</RelativeLayout>
<RelativeLayout
android:id="#+id/Volver"
android:layout_width="fill_parent"
android:layout_height="40dp"
android:layout_alignParentBottom="true"
android:layout_alignParentLeft="true">
<TextView
android:id="#+id/Volvertxt"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:layout_alignParentBottom="true"
android:layout_alignParentLeft="true"
android:text="Volver"
android:textColor="#android:color/white"
android:textSize="30px"
android:gravity="center"
android:clickable="true"
android:onClick="onClickVolver" />
</RelativeLayout>
</RelativeLayout>

I have modified your code hope it solves your problem
<?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="fill_parent" >
<WebView
android:id="#+id/webviewBlog"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:textColor="#android:color/black"
android:scrollbars="none"
android:fitsSystemWindows="true" />
<TextView
android:id="#+id/Volvertxt"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:layout_alignParentLeft="true"
android:text="Volver"
android:textColor="#android:color/white"
android:textSize="30px"
android:gravity="center"
android:clickable="true"
android:onClick="onClickVolver" />
</RelativeLayout>

That is because, you are giving height in dp units of the parent layout. Make it match_parent.
EDIT:
<?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" >
<WebView
android:id="#+id/webviewBlog"
android:layout_width="fill_parent"
android:layout_height="600dp"
android:textColor="#android:color/black"
android:scrollbars="none"
android:fitsSystemWindows="true" />
<RelativeLayout
android:id="#+id/Volver"
android:layout_width="fill_parent"
android:layout_height="40dp"
android:layout_alignParentBottom="true"
android:layout_alignParentLeft="true">
<TextView
android:id="#+id/Volvertxt"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:layout_alignParentBottom="true"
android:layout_alignParentLeft="true"
android:text="Volver"
android:textColor="#android:color/white"
android:textSize="30px"
android:gravity="center"
android:clickable="true"
android:onClick="onClickVolver" />
</RelativeLayout>
</RelativeLayout>

scrollable content within tab content view

I am trying to create an interface that is a tabbed view. my form is in one tab and the results will be in another tab. I am having difficulty in getting the form to scroll down so that I can access the data off screen. Tab1 below is the content I want to be scrollable. Am I using the wrong type of container to hold my form and that is why I cannot scroll it down as I enter data into my form fields? Can you offer any suggestions as to what I am missing or doing wrong please?
my main tab gui xml:
<?xml version="1.0" encoding="utf-8"?>
<TabHost xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#android:id/tabhost"
android:layout_width="fill_parent"
android:layout_height="fill_parent" android:isScrollContainer="true">
<LinearLayout
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:padding="5dp">
<TabWidget
android:id="#android:id/tabs"
android:layout_width="fill_parent"
android:layout_height="wrap_content" />
<FrameLayout
android:id="#android:id/tabcontent"
android:layout_width="fill_parent"
android:layout_height="fill_parent">
<include layout="#layout/tab1"/>
<include layout="#layout/tab2"/>
</FrameLayout>
</LinearLayout>
</TabHost>
Tab1 -- this is where I want the content to be scrollable:
<?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:orientation="vertical" android:id="#layout/tab1" android:scrollbarAlwaysDrawVerticalTrack="true" android:scrollbarDefaultDelayBeforeFade="3" android:scrollbarFadeDuration="2" android:scrollbars="vertical" android:isScrollContainer="true">
<TextView
android:id="#+id/textView1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="#string/search_fn" />
<EditText
android:id="#+id/editText1"
android:layout_width="match_parent"
android:layout_height="wrap_content" android:inputType="text"/>
<TextView
android:id="#+id/textView2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="#string/search_ln" />
<EditText
android:id="#+id/editText2"
android:layout_width="match_parent"
android:layout_height="wrap_content" android:inputType="text">
<requestFocus />
</EditText>
<TextView
android:id="#+id/textView3"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="#string/search_ssn" />
<EditText
android:id="#+id/editText3"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:inputType="number" android:maxLength="9999"/>
<TextView
android:id="#+id/textView4"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="#string/search_phone" />
<EditText
android:id="#+id/editText4"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:inputType="phone" />
<TextView
android:id="#+id/textView5"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="#string/search_class" />
<RadioGroup
android:id="#+id/radioGroup1"
android:layout_width="match_parent"
android:layout_height="wrap_content" android:orientation="horizontal">
<RadioButton
android:id="#+id/radio0"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:checked="true"
android:text="#string/search_class_all"/>
<RadioButton
android:id="#+id/radio1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="#string/search_class_comm"/>
<RadioButton
android:id="#+id/radio2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="#string/search_class_med"/>
</RadioGroup>
<TextView
android:id="#+id/textView6"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="#string/search_status" />
<RadioGroup
android:id="#+id/radioGroup2"
android:layout_width="wrap_content"
android:layout_height="wrap_content" android:orientation="horizontal">
<RadioButton
android:id="#+id/radio3"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:checked="true"
android:text="#string/search_status_all" />
<RadioButton
android:id="#+id/radio4"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="#string/search_status_avail" />
<RadioButton
android:id="#+id/radio5"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="#string/search_status_emp" />
</RadioGroup>
<TextView
android:id="#+id/textView7"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="#string/view1" />
</LinearLayout>
tab2 -- once the search is complete the results will be displayed here.:
<?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:orientation="vertical" android:id="#layout/tab2">
<TextView
android:id="#+id/textView1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="#string/view2" />
</LinearLayout>

For the tab you want to scroll, you need to use <ScrollView> instead of <LinearLayout>. Or, create the <ScrollView> as the first item in your <LinearLayout>, and then all your scrollable content goes inside the <ScrollView>.
For example...
<?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:orientation="vertical" android:id="#layout/tab1">
<ScrollView xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/scroller"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:fillViewport="true" >
<TextView>...
<EditText>...
<OtherObjects>...
</ScrollView>
</LinearLayout>

Wrapping RelativeLayout in ScrollView Problem

I am trying to wrap a relative layout in a scroll view as shown below, however it is not working. I cannot see the last text box which is off screen and cannot scroll down on the screen.
<?xml version="1.0" encoding="UTF-8"?>
<ScrollView xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/scroller"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:fillViewport="true" >
<RelativeLayout
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:background="#drawable/background"
android:orientation="horizontal"
>
<TextView
android:id="#+id/namedetail"
android:background="#drawable/backgroundstate"
android:layout_width="fill_parent"
android:gravity="center_vertical|center_horizontal"
android:layout_height="50dip"
android:textColor="#FF000000"
android:textStyle="bold"
android:textSize="15sp"
android:typeface="sans"
/>
<ImageView android:id="#+id/picturedetail"
android:layout_width="175dip"
android:layout_height="175dip"
android:layout_below="#id/namedetail"
android:layout_marginLeft="75dip"
android:layout_marginTop="10dip"
/>
<ImageView android:id="#+id/infoboxdetail"
android:layout_width="225dip"
android:layout_height="100dip"
android:layout_marginLeft="50dip"
android:layout_marginTop="10dip"
android:layout_below="#id/picturedetail"
android:background="#drawable/backgroundstate"
/>
<TextView
android:id="#+id/descriptiondetail"
android:background="#drawable/backgroundstate"
android:layout_width="fill_parent"
android:gravity="center_vertical|center_horizontal"
android:layout_height="50dip"
android:textColor="#FF000000"
android:textStyle="bold"
android:textSize="15sp"
android:typeface="sans"
android:layout_below="#id/infoboxdetail"
android:layout_marginTop ="10dip"
/>
</RelativeLayout>
</ScrollView>

try with
android:orientation="vertical" in relative layout..