Develop Reference

How to remove borders in Activity android

I can't understand what a reason of these borders in my Activity.
Could you help me to remove it please?
I have found out advice to replace match_parent with fill_parent, but it doesn't help of course.
I have marked red only places in which you can see the problem, but it seems that there are borders fill all height of screen at left and right.
<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:orientation="vertical"
android:gravity="center_horizontal"
tools:context="AppName.NewNoteActivity">
<ScrollView android:id="#+id/newNoteScrollView"
android:layout_width="fill_parent"
android:layout_height="fill_parent" >
<LinearLayout
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:gravity="center_horizontal">
<VideoView
android:id="#+id/newNoteVideoView"
android:layout_height="200dp"
android:layout_width="fill_parent"
/>
<EditText
android:layout_width="220dp"
android:layout_height="wrap_content"
android:inputType="text"
android:id="#+id/inputName"
android:layout_marginTop="20dp"
/>
<TimePicker
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="#+id/timePicker"
android:layout_marginTop="20dp"
/>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="#+id/inputDate"
android:layout_marginTop="20dp"
android:clickable="true"
android:onClick="onClickInputDate"
android:text="#string/activity_new_note_helloText_inputDate"
/>
<Button
android:layout_width="match_parent"
android:layout_height="60dp"
android:text="Save"/>
</LinearLayout>
</ScrollView>

android:layout_alignParentRight="true" does nothing

I have an ImageView which I've set to android:layout_alignParentRight="true" however it does not appear on the right side of the screen and I'm not sure why (it is the white square appearing centered horizontally in the screenshot below).
I understand this can only be used with a RelativeLayout - but I've used one - so I'm not sure exactly why this is happening.
<?xml version="1.0" encoding="utf-8"?>
<com.example.project.DragLayer xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:launcher="http://schemas.android.com/apk/res/com.android.launcher"
android:id="#+id/drag_layer"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:background="#android:color/black" >
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:orientation="vertical" >
<LinearLayout
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical"
android:weightSum="1.0" >
<GridView
android:id="#+id/image_grid_view"
android:layout_width="wrap_content"
android:layout_height="fill_parent"
android:layout_weight="0.8"
android:background="#color/grid_background"
android:gravity="center"
android:horizontalSpacing="2dip"
android:numColumns="#integer/num_columns"
android:stretchMode="columnWidth"
android:verticalSpacing="2dip" />
<RelativeLayout
android:id="#+id/bottom_part"
android:layout_width="fill_parent"
android:layout_height="200dp"
android:layout_centerHorizontal="true"
android:layout_weight="0.2"
android:background="#android:color/black"
android:orientation="horizontal"
android:weightSum="1.0" >
<Button
android:id="#+id/button_add_image"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerHorizontal="true"
android:onClick="onClickAddImage"
android:text="Add image" />
<com.example.project.DeleteZone
android:id="#+id/delete_zone_view"
android:layout_width="60dp"
android:layout_height="60dp"
android:src="#drawable/delete_zone" />
<FrameLayout
android:id="#+id/image_source_frame"
android:layout_width="fill_parent"
android:layout_height="80dp"
android:layout_weight="0.5" >
<RelativeLayout
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:layout_alignParentRight="true"
android:layout_gravity="right"
android:layout_marginRight="5dp"
android:layout_weight="1" >
<ImageView
android:id="#+id/sqwhite"
android:layout_width="100dp"
android:layout_height="100dp"
android:layout_alignParentRight="true"
android:layout_gravity="right"
android:layout_marginRight="5dp"
android:layout_weight="1" />
<EditText
android:id="#+id/editText1"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignParentRight="true"
android:layout_below="#id/sqwhite"
android:layout_marginRight="5dp" >
<requestFocus />
</EditText>
<TextView
android:id="#+id/textView1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentRight="true"
android:layout_below="#id/editText1"
android:layout_marginRight="5dp"
android:text=""
android:textColor="#android:color/white" />
</RelativeLayout>
</FrameLayout>
</RelativeLayout>
</LinearLayout>
</LinearLayout>
</com.example.project.DragLayer>

The one glaring thing that jumps out at me is the redefinition of the xmlns, which any compiler doesn't like and may prevent proper generation of the layout. When I removed that and some of your dead code and tried running this, the "sqwhite" appeared on the right side. See if fixing these items helps:
Your first LinearLayout redefines the XML Namespace, which is an error. This could be what's preventing the XML from compiling properly.
Other minor items:
layout_weight only applies to children of LinearLayouts, so having them in other ViewGroups is unnecessary. Remove them from image_source_frame and its children
Having bottom_part use layout_centerHorizontal in a vertical LinearLayout is redundant and should also be removed.
Having layout_alignParentRight in your RelativeLayout is useless, since only children of RelativeLayouts can use it. Please remove.
Maybe I'm missing it from the code you provided, but where is the white square actually coming from? You didn't set an android:src attribute to the ImageView. So is it possible that the actual sqwhite is in the right place, and that that white square represents something else?
EDIT: I've re-pasted your code here, with the items I listed removed. Maybe this will help:
<?xml version="1.0" encoding="utf-8"?>
<com.example.project.DragLayer xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/drag_layer"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:background="#android:color/black" >
<LinearLayout
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:orientation="vertical" >
<LinearLayout
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical"
android:weightSum="1.0" >
<GridView
android:id="#+id/image_grid_view"
android:layout_width="wrap_content"
android:layout_height="fill_parent"
android:layout_weight="0.8"
android:background="#color/grid_background"
android:gravity="center"
android:horizontalSpacing="2dip"
android:numColumns="#integer/num_columns"
android:stretchMode="columnWidth"
android:verticalSpacing="2dip" />
<RelativeLayout
android:id="#+id/bottom_part"
android:layout_width="fill_parent"
android:layout_height="200dp"
android:layout_weight="0.2"
android:background="#android:color/black"
android:weightSum="1.0" >
<Button
android:id="#+id/button_add_image"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerHorizontal="true"
android:onClick="onClickAddImage"
android:text="Add image" />
<com.example.project.DeleteZone
android:id="#+id/delete_zone_view"
android:layout_width="60dp"
android:layout_height="60dp"
android:src="#drawable/delete_zone" />
<FrameLayout
android:id="#+id/image_source_frame"
android:layout_width="fill_parent"
android:layout_height="80dp" >
<RelativeLayout
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:layout_gravity="right"
android:layout_marginRight="5dp" >
<ImageView
android:id="#+id/sqwhite"
android:layout_width="100dp"
android:layout_height="100dp"
android:layout_alignParentRight="true"
android:layout_gravity="right"
android:layout_marginRight="5dp"
android:src="#android:drawable/ic_delete" /> <!-- for testing -->
<EditText
android:id="#+id/editText1"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignParentRight="true"
android:layout_below="#id/sqwhite"
android:layout_marginRight="5dp" />
<TextView
android:id="#+id/textView1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentRight="true"
android:layout_below="#id/editText1"
android:layout_marginRight="5dp"
android:text=""
android:textColor="#android:color/white" />
</RelativeLayout>
</FrameLayout>
</RelativeLayout>
</LinearLayout>
</LinearLayout>
</com.example.project.DragLayer>

Android Layout with ListView

I am really getting frustrated with the layout as shown below:
I would like to have listview and below that I need to have two buttons side by side as shown above(LIstview should be scrollable and buttons should be as bottom bar ie..ontop tof the listview ). I have tried using android:layout_above and android:layout_below but nothing worked.Can anyone gimme an idea how to achieve this layout ?
This is what my layout code as of now actually I have this code where I am able to achieve this but I'm unable to click the buttons here.
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="fill_parent"
android:layout_height="match_parent"
android:orientation="vertical" >
<LinearLayout
android:id="#+id/secondLayout"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:orientation="vertical"
android:padding="15dp" >
<ListView
android:id="#+id/list"
android:layout_width="match_parent"
android:layout_height="wrap_content" />
</LinearLayout>
<LinearLayout
android:id="#+id/firstLayout"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_above="#id/secondLayout"
android:layout_alignParentBottom="true"
android:layout_centerHorizontal="true"
android:background="#00ffffff"
android:gravity="bottom"
android:orientation="horizontal"
android:padding="15dp" >
<Button
android:id="#+id/btnPrevious"
android:layout_width="wrap_content"
android:layout_height="35dp"
android:layout_marginLeft="10dp"
android:layout_weight="1"
android:background="#drawable/redbutton"
android:onClick=""
android:text="Previous"
android:textColor="#ffffff" />
<Button
android:id="#+id/btnNext"
android:layout_width="wrap_content"
android:layout_height="35dp"
android:layout_marginLeft="10dp"
android:layout_weight="1"
android:background="#drawable/redbutton"
android:text="Next"
android:textColor="#ffffff" />
</LinearLayout>

Step #1: Get rid of the useless LinearLayout wrapping your ListView, moving the android:padding attribute into the ListView.
Step #2: Add android:layout_alignParentTop="true" and android:layout_above="#+id/firstLayout to the ListView.
Step #3: Get rid of android:layout_above="#id/secondLayout" from the remaining LinearLayout, as you definitely do not want that above the ListView.
Step #4: Switch from dp to sp for your Button dimensions, to take into account font scaling.
Step #5: Either change the width of the LinearLayout to wrap_content or remove the android:layout_centerHorizontal="true", as you cannot center something that fills all available space.
Off the cuff, the rest should be OK, or at least be a lot closer to what you want.

how about adding the buttons to your actionbar?
Otherwise wrap the ListView inside an ScrollView and make your RelativeLayout to LinearLayout

this is working. What problem are you facing exactly?
<RelativeLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="fill_parent"
android:layout_height="match_parent"
android:orientation="vertical">
<LinearLayout
android:id="#+id/secondLayout"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:orientation="vertical"
android:padding="15dp" >
<ListView
android:id="#+id/list"
android:layout_width="match_parent"
android:layout_height="wrap_content" />
</LinearLayout>
<LinearLayout
android:id="#+id/firstLayout"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_above="#id/secondLayout"
android:layout_alignParentBottom="true"
android:layout_centerHorizontal="true"
android:background="#00ffff"
android:gravity="bottom"
android:orientation="horizontal"
android:padding="15dp" >
<Button
android:id="#+id/btnPrevious"
android:layout_width="wrap_content"
android:layout_height="35dp"
android:layout_marginLeft="10dp"
android:layout_weight="1"
android:background="#FF0000"
android:onClick="test"
android:text="Previous"
android:textColor="#ffffff" />
<Button
android:id="#+id/btnNext"
android:layout_width="wrap_content"
android:layout_height="35dp"
android:layout_marginLeft="10dp"
android:layout_weight="1"
android:onClick="test"
android:background="#FF0000"
android:text="Next"
android:textColor="#ffffff" />
</LinearLayout>

This may work for you:
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="fill_parent"
android:layout_height="match_parent"
android:orientation="vertical" >
<ListView
android:id="#+id/list"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignParentTop="true"
android:layout_above="#+id/firstLayout" />
<LinearLayout
android:id="#+id/firstLayout"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:layout_centerHorizontal="true"
android:background="#00ffffff"
android:orientation="horizontal"
android:padding="15dp" >
<Button
android:id="#+id/btnPrevious"
android:layout_width="wrap_content"
android:layout_height="35dp"
android:layout_marginLeft="10dp"
android:layout_weight="1"
android:onClick=""
android:text="Previous"
android:textColor="#ffffff" />
<Button
android:id="#+id/btnNext"
android:layout_width="wrap_content"
android:layout_height="35dp"
android:layout_marginLeft="10dp"
android:layout_weight="1"
android:text="Next"
android:textColor="#ffffff" />
</LinearLayout>
</RelativeLayout>

android layout doesn't apprea

i have two layouts vertically , first one has edittext and button, second one has two listvies ,
the first one doesn't appear, and i got an exception when running the application
<?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:orientation="vertical" >
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:orientation="horizontal" >
<EditText
android:id="#+id/etRestaurantSearchName"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_weight="1"
android:hint="Enter name"
android:inputType="text"
android:textSize="15dip" />
<Button
android:id="#+id/bRestaurantSearchButton"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_weight="1"
android:text="Search" />
</LinearLayout>
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="horizontal" >
<ListView
android:id="#+id/lvRestaurants"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_weight="1"
android:background="#ffffff"
android:fillViewport="true" >
</ListView>
<ListView
android:id="#+id/lvAlphabets"
android:layout_width="40dp"
android:layout_height="match_parent"
android:layout_weight="2"
android:background="#drawable/foods_alphabets_bg"
android:orientation="vertical" >
</ListView>
</LinearLayout>
</RelativeLayout>
i ma sure it is something about hiegh , width or weight,

You have used RelativeLayout as the parent layout for the inner two layouts. Therefore the second inner Linear Layout overlaps the first one , thus first one cant be seen. Make use of linear layout as parent layout

Try this:
Correction :
android:layout_below="#+id/Layout1" for layout two.
and some weight related changes.
<LinearLayout
android:id="#+id/Layout1"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:orientation="horizontal" >
<EditText
android:id="#+id/etRestaurantSearchName"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_weight="1"
android:hint="Enter name"
android:inputType="text"
android:textSize="15dip" />
<Button
android:id="#+id/bRestaurantSearchButton"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_weight="1"
android:text="Search" />
</LinearLayout>
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_below="#+id/Layout1"
android:orientation="horizontal" >
<ListView
android:id="#+id/lvRestaurants"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="1"
android:background="#drawable/edit_text"
android:fillViewport="true" >
</ListView>
<ListView
android:id="#+id/lvAlphabets"
android:layout_width="40dp"
android:layout_height="match_parent"
android:background="#drawable/btn_bg_pressed"
android:orientation="vertical" >
</ListView>
</LinearLayout>

Align a layout to the top of another layout in order to make a status bar

I have a layout like this:
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/parent"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:background="#e4e8ed"
android:gravity="top" >
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/app"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_margin="0px"
android:orientation="vertical"
android:padding="0px" >
<include
android:id="#+id/tabBar"
layout="#layout/tab" />
<Button
android:id="#+id/nist"
android:layout_width="match_parent"
android:layout_height="67dp"
android:layout_gravity="center_horizontal"
android:layout_marginBottom="3dp"
android:layout_marginLeft="3dp"
android:layout_marginRight="3dp"
android:layout_marginTop="3dp"
android:background="#drawable/ready"
android:textColor="#FFFFFF" />
<ListView
android:id="#+id/lastCases"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_weight="2.08"
android:longClickable="true" />
</LinearLayout>
<LinearLayout
android:layout_width="fill_parent"
android:layout_height="7dp"
android:layout_below="#id/app"
android:background="#drawable/dropshadow_custom" >
<TextView
android:id="#+id/error"
style="#style/AudioFileInfoOverlayText"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:layout_marginTop="120dp"
android:gravity="center"
android:text="No Cases"
android:textAppearance="?android:attr/textAppearanceLarge"
android:textColor="#D6D8D9"
android:textSize="40dp" />
</LinearLayout>
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_alignParentRight="true"
android:layout_alignTop="#+id/app"
android:background="#000000"
android:gravity="bottom"
android:orientation="vertical" >
</LinearLayout>
</RelativeLayout>
I try to align the last LinearLayout on top of the layout which holds the ListView by using this tag: android:layout_alignTop="#+id/app" But it doesn't seem to work. How can accomplish this?
Many Thanks!

Without any content a Layout with layout_width="wrap_content" and layout_height="wrap_content" is not shown as its width and height have a value of 0! Even if you have set some background color nothing will appear! You either have to add some content to the layout or you have to define another layout dimension. The position of your layout with android:layout_alignTop="#+id/app" should be correct. Hope that helps.

You can set "layout_below" on the first layout targeting to the last layout.
The code is that, I put a button inside the top layout as an exemple (Obs: In your listview you should use 0dp in layout_weight cause you already use layout_weight ^^) :
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/parent"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:background="#e4e8ed"
android:gravity="top" >
<LinearLayout
android:id="#+id/app"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_margin="0px"
android:orientation="vertical"
android:layout_below="#+id/top"
android:padding="0px" >
<Button
android:id="#+id/nist"
android:layout_width="match_parent"
android:layout_height="67dp"
android:layout_gravity="center_horizontal"
android:layout_marginBottom="3dp"
android:layout_marginLeft="3dp"
android:layout_marginRight="3dp"
android:layout_marginTop="3dp"
android:textColor="#FFFFFF" />
<ListView
android:id="#+id/lastCases"
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_weight="2.08"
android:longClickable="true" />
</LinearLayout>
<LinearLayout
android:layout_width="fill_parent"
android:layout_height="7dp"
android:layout_below="#+id/app" >
<TextView
android:id="#+id/error"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:layout_marginTop="120dp"
android:gravity="center"
android:text="No Cases"
android:textAppearance="?android:attr/textAppearanceLarge"
android:textColor="#D6D8D9"
android:textSize="40dp" />
</LinearLayout>
<LinearLayout
android:id="#+id/top"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_alignParentRight="true"
android:background="#000000"
android:gravity="bottom"
android:orientation="vertical" >
<Button
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="Top"
/>