Develop Reference

Android. ScrollView is shown beneath of previous layout

I have two linear layouts and ScrollView in my layout.
I add a few views to ScrollView programmatically.
All is okay, if views in ScrollView are inside of the screen.
But if more views in ScrollView, the first view of scrollview
is under layout2 and partly invisible.
I tryed relative layout. But the same performance.
Of course I'd like to see top element of scrollview without truncating.
My XML is below:
<?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:background="#color/backNormal"
android:orientation="vertical"
>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/layout1"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:background="#color/backNormal"
android:orientation="horizontal"
>
<ImageView
android:id="#+id/imageDriverWaitingBack"
android:layout_width="36dp"
android:layout_height="36dp"
android:layout_weight="1"
android:src="#drawable/back"
android:gravity="left"
/>
<TextView
android:id="#+id/textDriverWaitingTitle"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:textAppearance="?android:attr/textAppearanceMedium"
android:text="Title"
android:gravity="center"
android:textColor="#color/text1"
android:layout_weight="2.13"
/>
<ImageView
android:layout_width="36dp"
android:layout_height="36dp"
android:gravity="right"
android:layout_weight="1"
/>
</LinearLayout>
<View
android:layout_width="match_parent"
android:layout_height="1dp"
android:background="#color/backDark2"
/>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/layout2"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:background="#color/backNormal"
android:orientation="horizontal"
>
<Button
android:id="#+id/dButtonWaitMinus"
android:text='-'
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:gravity="center"
style="#style/button_style_normal"
android:layout_weight="1"
/>
<TextView
android:id="#+id/dTextWaitDist"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:textAppearance="?android:attr/textAppearanceSmall"
android:text="Distance"
android:gravity="center"
android:textColor="#color/text1"
android:layout_weight="9"
/>
<Button
android:id="#+id/dButtonWaitPlus"
android:text='+'
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:gravity="center"
android:layout_weight="1"
style="#style/button_style_normal"
/>
</LinearLayout>
<ScrollView xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:orientation="vertical"
>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/driverWaitList"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:background="#color/backNormal"
android:orientation="vertical"
android:layout_gravity="center_horizontal|center_vertical"
>
</LinearLayout>
</ScrollView>
</LinearLayout>
Any ideas please! Thanks!

android layout center and bottom

In my layout i want to display two imagebuttons in the center and a my amountmeter below it on the bottom, all centered vertically, i have tried many ways but cant seem to find that perfect layout. all the component align vertically and center but it makes my amountmeter small and not full width of the screen.
How it should be
how it is now
updated code
current layout:
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:gravity="center"
android:orientation="vertical" >
<ImageButton
android:id="#+id/purchase"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:background="#drawable/round_button"
android:src="#drawable/ic_cart" />
<ImageButton
android:id="#+id/sell"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:background="#drawable/round_button"
android:src="#drawable/ic_sell" />
<com.example.mobile.view.AmountMeterView
android:id="#+id/mobileAmount"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:layout_gravity="center|bottom"
android:padding="4dp" />

COPY PASTE BELOW CODE
<?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="horizontal" >
<ImageButton
android:id="#+id/purchase"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentTop="true"
android:layout_centerHorizontal="true"
android:src="#drawable/ic_launcher" />
<ImageButton
android:id="#+id/sell"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="#+id/purchase"
android:layout_centerHorizontal="true"
android:src="#drawable/ic_launcher" />
<com.example.mobile.view.AmountMeterView
android:id="#+id/mobileAmount"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:layout_alignParentLeft="true"
android:layout_alignParentRight="true"
android:layout_below="#+id/sell"
android:padding="4dp"
android:src="#drawable/ic_launcher" />
</RelativeLayout>
AFTER THAT
android:background="#drawable/round_button"
android:src="#drawable/ic_sell"
android:background="#drawable/round_button"
android:src="#drawable/ic_cart"
PUT THIS LINE TO YOUR TWO IMAGE BUTTONS SURELY IT WILL WORK FOR YOU

One Linear layout is enough for this. Do not put your AmountMeterView into it's own LinearLayout.
Just make one Linear layout (vertical), and put all three elements in there. Gravity center_horizontal for all elements.

Try in this way hope this will help you
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical" >
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_weight="1"
android:orientation="vertical" >
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_weight="1"
android:gravity="center"
android:orientation="vertical" >
<ImageButton
android:id="#+id/purchase"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:background="#drawable/round_button"
android:src="#drawable/ic_launcher" />
</LinearLayout>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_weight="1"
android:gravity="center"
android:orientation="vertical" >
<ImageButton
android:id="#+id/sell"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:background="#drawable/round_button"
android:src="#drawable/ic_launcher" />
</LinearLayout>
</LinearLayout>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_weight="2"
android:orientation="vertical" >
<com.example.mobile.view.AmountMeterView
android:id="#+id/mobileAmount"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:padding="4dp" />
</LinearLayout>
</LinearLayout>

android: lock view at bottom of page under listview

I am trying to have a locked position linear layout within a relative layout.
There should be a listview and at the botoom of the page a linear layout with 2 checkboxes.
The problem is that the last item in the listview can never be seen as it is hiding under the linearlayout.
Help appreciated!
My layout xml file:
<?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"
android:background="#color/light_gray" >
<ListView
android:id="#+id/choose_children_lv"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignParentTop="true"
android:dividerHeight="5dip"
android:divider="#color/light_gray"
android:padding="5dip">
</ListView>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="40dip"
android:layout_alignParentBottom="true"
android:orientation="horizontal"
android:layout_gravity="bottom"
android:background="#color/white"
android:layout_marginTop="4dip">
<CheckBox
android:id="#+id/childCheckAllTextView"
android:layout_width="0dip"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:gravity="center"
android:layout_weight="1"
android:checked="true"
android:text="#string/check_all" />
<CheckBox
android:id="#+id/childUncheckAllTextView"
android:layout_width="0dip"
android:layout_height="wrap_content"
android:gravity="center"
android:layout_gravity="center"
android:layout_weight="1"
android:checked="false"
android:text="#string/uncheck_all" />
</LinearLayout>
</RelativeLayout>

add id to linearlayout and make your listview "above" linearlayout
<?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"
android:background="#color/light_gray" >
<ListView
android:id="#+id/choose_children_lv"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignParentTop="true"
android:dividerHeight="5dip"
**android:above="#+id/mywrapper"**
android:divider="#color/light_gray"
android:padding="5dip">
</ListView>
<LinearLayout
**android:id="#+id/mywrapper"**
android:layout_width="match_parent"
android:layout_height="40dip"
android:layout_alignParentBottom="true"
android:orientation="horizontal"
android:layout_gravity="bottom"
android:background="#color/white"
android:layout_marginTop="4dip">
<CheckBox
android:id="#+id/childCheckAllTextView"
android:layout_width="0dip"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:gravity="center"
android:layout_weight="1"
android:checked="true"
android:text="#string/check_all" />
<CheckBox
android:id="#+id/childUncheckAllTextView"
android:layout_width="0dip"
android:layout_height="wrap_content"
android:gravity="center"
android:layout_gravity="center"
android:layout_weight="1"
android:checked="false"
android:text="#string/uncheck_all" />
</LinearLayout>
</RelativeLayout>

The android layout lacks proportion when I set the background of Imagebutton.

The android layout lacks proportion when I set the background of Imagebutton.
And the code of xml is like the following:
<?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"
android:baselineAligned="false"
android:orientation="vertical" >
<FrameLayout
android:id="#+id/player_frame"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:layout_above="#+id/buttonLayout" >
<FrameLayout
android:id="#+id/player_surface_frame"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:layout_gravity="center" >
<SurfaceView
android:id="#+id/player_surface"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:layout_gravity="center" />
</FrameLayout>
</FrameLayout>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignParentTop="true"
android:orientation="vertical" >
<LinearLayout
android:layout_width="fill_parent"
android:layout_height="wrap_content" >
<Button
android:id="#+id/findCameraButton"
android:layout_width="0dp"
android:layout_height="match_parent"
android:layout_weight="4"
android:text="#string/label_find_camera" />
<Button
android:id="#+id/SettingButton"
android:layout_width="0dp"
android:layout_height="match_parent"
android:layout_weight="4"
android:text="#string/Camera_WiFi_setup" />
<ImageButton
android:id="#+id/FileSavebutton"
android:layout_width="0dp"
android:layout_height="match_parent"
android:layout_weight="4"
android:background="#drawable/save_in_camera" />
</LinearLayout>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content" >
<TextView
android:id="#+id/TimeStampLabel"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_margin="10dip"
android:text=""
android:textColor="#ffff00"
android:textAppearance="?android:attr/textAppearanceMedium" />
</LinearLayout>
</LinearLayout>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:orientation="vertical" >
<LinearLayout
android:layout_width="fill_parent"
android:layout_height="wrap_content" >
<Button
android:id="#+id/snapshotButton"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="4"
android:text="#string/label_app_snapshot" />
<Button
android:id="#+id/recordButton"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="4"
android:text="#string/label_app_record" />
<ImageButton
android:id="#+id/photo_record_mode"
android:layout_width="0dp"
android:layout_height="match_parent"
android:layout_weight="4"
android:background="#drawable/turn_to_photomode"/>
</LinearLayout>
</LinearLayout>
</RelativeLayout>
How to setup can make the top of LinearLayout no deformation like the LinearLayout of bottom ?

Have you tried changing all the android:layout_height values from match_parent to wrap_content?

i think you should use scaleType to get your image look nice
prefer fitXY
like that
android:scaleType="fitXY"
put inside your xml to be whole code like that
<ImageButton
android:id="#+id/photo_record_mode"
android:layout_width="0dp"
android:layout_height="match_parent"
android:layout_weight="4"
android:background="#drawable/turn_to_photomode"
android:scaleType="fitXY"/>

How to center a view using RelativeLayout?

I wanted to know how to center a View between two other views (or between a view and the parent edge) using RelativeLayout.
For example, if I have the following...
How do I vertically center the Button between the ImageView and the bottom of the screen using RelativeLayout?
I'm looking for a solution where...
the Button is not stretched in any way
there are no nested layouts
And I'm trying to do this in the XML layout (not programmatically).

You can use following:
<RelativeLayout
android:layout_below="#id/theImageView"
android:align_parentBottom="true"
android:layout_width="match_parent"
android:layout_height="200dp" >
<Button
android:id="#+id/btn"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerHorizontal="true"
android:layout_centerVertical="true"
android:onClick="onClickButton"
android:textSize="20sp"
android:text="Go"/>
</RelativeLayout>

There's unfortunately no easy way to do this. You can either nest layouts, or do it at runtime. The simplest way is to nest layouts:
<LinearLayout
android:width="match_parent"
android:height="match_parent"
android:orientation="vertical">
<ImageView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="#drawable/my_top_image"/>
<RelativeLayout
android:layout_width="fill_parent"
android:layout_height="0dip"
android:layout_weight="1">
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerInParent="true"
android:text="#string/my_button_label"/>
</RelativeLayout>
</LinearLayout>
This puts the image at the top. Below that, the layout_height=0 and layout_weight=1 attributes on the RelativeLayout cause it to take up all the remaining space. You can then center the button in the RelativeLayout. You can play with padding on the button to get it to the size you want.

Use below XMl code for that, it will solve your problem.
<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="fill_parent" >
<LinearLayout
android:id="#+id/mLlayout1"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical" >
<ImageView
android:id="#+id/mImgView1"
android:layout_width="fill_parent"
android:layout_height="match_parent"
android:layout_weight="1"
android:src="#drawable/ic_launcher" />
<RelativeLayout
android:layout_width="fill_parent"
android:layout_height="match_parent"
android:layout_weight="2" >
<Button
android:id="#+id/Btn1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerInParent="true"
android:text="Dipak" />
</RelativeLayout>
</LinearLayout>
</RelativeLayout>

use this android:layout_centerInParent="true" in XML file..
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
android:weightSum="1.0" >
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="0dip"
android:layout_weight="0.8"
android:background="#00ff00" >
<ImageView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerInParent="true" />
</RelativeLayout>
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="0dip"
android:layout_weight="0.2" >
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerInParent="true"
android:text="Button" />
</RelativeLayout>
</LinearLayout>

#Gus you can create center view between two other view... this is not exact you must try with
this way....
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="wrap_content"
android:layout_height="wrap_content" >
<LinearLayout
android:id="#+id/linearLayout1"
android:layout_width="120dp"
android:layout_height="120dp"
android:layout_alignParentBottom="true"
android:layout_alignParentLeft="true"
android:background="#00ccFF"
android:orientation="horizontal" >
</LinearLayout>
<LinearLayout
android:layout_width="59dp"
android:layout_height="59dp"
android:layout_alignRight="#+id/linearLayout1"
android:layout_alignTop="#+id/linearLayout1"
android:layout_marginRight="-21dp"
android:layout_marginTop="-21dp"
android:background="#FFccFF"
android:orientation="vertical" >
</LinearLayout>
</RelativeLayout>

I think what you just need is to allign the imageview as you would normally done and align the button using layout_below , no need for hardcoding nor using nested views use android:gravity="center" on the button you're done
<RelativeLayout
android:layout_below="#id/theImageView"
android:align_parentBottom="true"
android:layout_width="match_parent"
android:layout_height="200dp" >
<ImageView
android:id="#+id/imgview"
android:layout_width="match_parentmat"
android:layout_height="wrap_content" />
<Button
android:id="#+id/btn"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="#+id/imgview"
android:gravity="center"
android:onClick="onClickButton"
android:textSize="20sp"
android:text="Go"/>
</RelativeLayout>

<?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" >
<ImageView
android:id="#+id/imageView1"
android:layout_width="300dp"
android:layout_height="300dp"
android:layout_alignParentTop="true"
android:layout_centerHorizontal="true"
android:layout_marginTop="20dp"
android:src="#drawable/wood" />
<Button
android:id="#+id/button1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignLeft="#+id/imageView1"
android:layout_below="#+id/imageView1"
android:layout_marginLeft="101dp"
android:layout_marginTop="53dp"
android:text="Image Button" />
</RelativeLayout>