Develop Reference

Display 2 or more textviews in one row

I saw some same questions, but
I'm using android:orientation="vertical"
so I can't use orientation as horizontal.
How can I display 2 or more textviews on 1 row?
(Sorry for my english skills)
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".MainActivity"
android:orientation="vertical"
android:background="#drawable/background"
android:weightSum="1">
<TextView
android:layout_width="62dp"
android:layout_height="28dp"
android:layout_gravity="right"
android:text="Sign in"
android:textColor="#7041EE"
android:textSize="20dp" />
<TextView
android:id="#+id/nwah"
android:layout_width="162dp"
android:layout_height="28dp"
android:layout_gravity="left"
android:text="New around here?"
android:textColor="#ACACAC"
android:textSize="20dp" />
</LinearLayout>
enter image description here

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".MainActivity"
android:orientation="vertical"
android:background="#drawable/background"
android:weightSum="1">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal"
android:weightSum="2">
<TextView
android:layout_width="0dp"
android:layout_height="28dp"
android:layout_gravity="right"
android:layout_weight="1"
android:text="Sign in"
android:textColor="#7041EE"
android:textSize="20dp" />
<TextView
android:id="#+id/nwah"
android:layout_width="0dp"
android:layout_height="28dp"
android:layout_weight="1"
android:layout_gravity="left"
android:text="New around here?"
android:textColor="#ACACAC"
android:textSize="20dp" />
</LinearLayout>
</LinearLayout>

You can add another view for textView
<LinearLayout // vertical
<LinearLayout // hotizontal
<TextView/>
<TextView/>
<LinearLayout/>
<LinearLayout/>
or you can use Constraint layout

Unable to make all UI components appear in RelativeLayout

I want a RelativeLayout based android UI that looks like the below mock graphic:
Below is my layout xml:
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/RelativeLayoutForPreview"
android:layout_width="match_parent"
android:layout_height="match_parent" >
<!-- surface view that contains camera preview , and seats above #+id/linearLayoutToolbar -->
<SurfaceView
android:id="#+id/surfaceViewBarcodeScanner"
android:layout_width="wrap_content"
android:layout_height="wrap_content" />
<!-- LinearLayout that contains toolbar that is divided into 3 sections horizontally -->
<LinearLayout
android:id="#+id/linearLayoutToolbar"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_below="#+id/surfaceViewBarcodeScanner"
android:orientation="horizontal" >
<ImageView
android:id="#+id/imageView1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="#drawable/scanner_bottom_left" />
<ImageView
android:id="#+id/imageView2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="#drawable/scanner_bottom_center_toolbar" />
<ImageView
android:id="#+id/imageView3"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="#drawable/scanner_bottom_right_landscape_button" />
</LinearLayout>
</RelativeLayout>
I used Eclipse GUI palette and my own editing , however the output was not what I expected, the SurfaceView seems to covering all the screen, the LinearLayout at the bottom does not appear.
Snapshot of my current result on Galaxy S3 device:
Any help will be appreciated, Thanks.

Could you please try out to modify your layout as the follows:
Define your SurfaceView and set it's layout_above value to the ID of the linear layout made in the previous step. Set the layout_alignParentTop to true.
Define your bottom linear layout and set the layout_alignParentBottom to true.
Smart code snippet with only the important parts:
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android">
<SurfaceView
android:id="#+id/surfaceViewBarcodeScanner"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_alignParentTop="true"
android:layout_above="#+id/linearLayoutToolbar" />
<LinearLayout
android:id="#+id/linearLayoutToolbar"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true" />
</RelativeLayout>
I hope this will solve your problem.

you can use Linearlayout instead of Realtive 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="fill_parent"
android:orientation="vertical" >
<SurfaceView
android:id="#+id/surfaceViewBarcodeScanner"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:layout_weight="1" />
<LinearLayout
android:id="#+id/linearLayoutToolbar"
android:layout_width="match_parent"
android:layout_height="wrap_content"
>
<!-- inside elements -->
</LinearLayout>
</LinearLayout>
else you should use android:layout_above="#+id/linearLayoutToolbar" to your surfaceview
and remove android:layout_below attribute and add android:layout_alignParentBottom="true" to your toolbar view.

// try this
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/LinearLayoutForPreview"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:padding="5dp"
android:orientation="vertical">
<LinearLayout
android:layout_height="0dp"
android:layout_weight="1"
android:layout_width="match_parent">
<SurfaceView
android:id="#+id/surfaceViewBarcodeScanner"
android:layout_width="match_parent"
android:layout_height="match_parent" />
</LinearLayout>
<LinearLayout
android:id="#+id/linearLayoutToolbar"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal" >
<LinearLayout
android:layout_height="wrap_content"
android:layout_width="0dp"
android:gravity="center"
android:layout_weight="1">
<ImageView
android:id="#+id/imageView1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="#drawable/scanner_bottom_left" />
</LinearLayout>
<LinearLayout
android:layout_height="wrap_content"
android:layout_width="0dp"
android:gravity="center"
android:layout_weight="2">
<ImageView
android:id="#+id/imageView2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="#drawable/scanner_bottom_center_toolbar" />
</LinearLayout>
<LinearLayout
android:layout_height="wrap_content"
android:layout_width="0dp"
android:gravity="center"
android:layout_weight="1">
<ImageView
android:id="#+id/imageView3"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="#drawable/scanner_bottom_right_landscape_button" />
</LinearLayout>
</LinearLayout>
</LinearLayout>

CheckBox at the Margin Right of Layout XML

I would like to put a Checkbox in this XML Layout. I've try many times but I always get an error.
<?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" >
<ImageView
android:id="#+id/app_icon"
android:layout_width="50dp"
android:layout_height="50dp"
android:padding="3dp"
android:scaleType="centerCrop" />
<LinearLayout
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:gravity="center_vertical"
android:orientation="vertical"
android:paddingLeft="5dp" >
<TextView
android:id="#+id/app_name"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:gravity="center_vertical"
android:textStyle="bold" />
<TextView
android:id="#+id/app_paackage"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:gravity="center_vertical" />
</LinearLayout>
</LinearLayout>
I would like the CheckBox at the Margin Right. So, example:
IMAGE MyApplication MyPackage CheckBox AT THE MARGIN RIGHT

<?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:layout_orientation="horizontal">
<ImageView
android:id="#+id/app_icon"
android:layout_width="50dp"
android:layout_height="50dp"
android:padding="3dp"
android:scaleType="centerCrop" />
<LinearLayout
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:gravity="center_vertical"
android:orientation="vertical"
android:paddingLeft="5dp" >
<TextView
android:id="#+id/app_name"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:gravity="center_vertical"
android:textStyle="bold" />
<TextView
android:id="#+id/app_paackage"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:gravity="center_vertical" />
</LinearLayout>
<CheckBox />
</LinearLayout>
Try like this giving layout_orientation to linear layout.

Adding scroll in tabhost in android

I have a tab host in which i have more than 6 buttons. However the screen shows only 3-4 buttons.
Following is the code which i am using along with the image.
<?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:background="#777777">
<RelativeLayout
android:layout_width="fill_parent"
android:layout_height="fill_parent"
>
<RelativeLayout
android:id="#+id/layTab"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:gravity="center"
android:paddingLeft="10dp"
android:paddingRight="10dp"
android:background="#drawable/navbar_background"
android:layout_alignParentBottom="true"
android:layout_centerVertical="true"
>
<TabWidget
android:id="#android:id/tabs"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_centerVertical="true"
/>
</RelativeLayout>
<FrameLayout
android:id="#android:id/tabcontent"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:layout_alignParentTop="true"
android:layout_above="#+id/layTab"/>
</RelativeLayout>
</TabHost>
The question is, How am i suppose to add a scroll so that i can scroll upto all 6 buttons or any other trick.
Best Regards

Just nest the TabWidget inside a HorizontalScrollingView, like this:
<?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:background="#777777" >
<RelativeLayout
android:layout_width="fill_parent"
android:layout_height="fill_parent" >
<RelativeLayout
android:id="#+id/layTab"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:layout_centerVertical="true"
android:background="#drawable/navbar_background"
android:gravity="center"
android:paddingLeft="10dp"
android:paddingRight="10dp" >
<HorizontalScrollView
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:fillViewport="true"
android:scrollbars="none" >
<TabWidget
android:id="#android:id/tabs"
android:layout_width="wrap_content"
android:layout_height="wrap_content" >
</TabWidget>
</HorizontalScrollView>
</RelativeLayout>
<FrameLayout
android:id="#android:id/tabcontent"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:layout_above="#+id/layTab"
android:layout_alignParentTop="true" />
</RelativeLayout>
</TabHost>
By the way, this solution works for many other scenarios, RadioGroup, for example

TextView above Image view in a layout

I am using this layout for my screen:
<?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:background="#drawable/tmp" >
<ImageView
android:id="#+id/imageView1"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:src="#drawable/uph"
android:layout_gravity="top|center" android:layout_marginTop="-10dp"/>
<ImageView
android:id="#+id/imageView2"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:src="#drawable/propfile"
android:layout_gravity="top|center"/>
</LinearLayout>
and i want to add a TextView to the screen that will be above the imageView2.
and when i add it to the xml it show it under the image.
what i need to do to be able to put TextView on image.

Try 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:orientation="vertical" android:background="#drawable/tmp" >
<ImageView
android:id="#+id/imageView1"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:src="#drawable/uph"
android:layout_marginTop="-10dp"/>
<RelativeLayout android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_gravity="top|center">
<ImageView
android:id="#+id/imageView2"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:src="#drawable/propfile"
/>
<TextView android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="text"
android:layout_centerInParent="true"
/>
</RelativeLayout>
</LinearLayout>

You could add another LinearLayout where the second image is, 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:background="#drawable/tmp" >
<ImageView
android:id="#+id/imageView1"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:src="#drawable/uph"
android:layout_gravity="top|center" android:layout_marginTop="-10dp"/>
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Text Goes Here" />
<ImageView
android:id="#+id/imageView2"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:src="#drawable/propfile"
android:layout_gravity="top|center"/>
</LinearLayout>
</LinearLayout>

Here is an alternative,
in your xml file,
<TextView android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="text"
android:layout_centerInParent="true"
android:layout_above="idofyourImage"
/>
Hope it helps