Develop Reference

remove vertical white space background in datepicker

any one know how to remove the white vertical thing in the right of datepicker?
i haven't found any solution yet for this background problem.
clik here to link for sreenshot
layout xml file for the activity
<?xml version="1.0" encoding="utf-8"?>
<ScrollView
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">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
android:background="#drawable/background_detail_destination"
android:padding="10dp"
tools:context="com.example.michael.finalproject.Detail_Destination">
<TextView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:gravity="center_horizontal"
android:text="Choose Date"
android:paddingBottom="10dp"
android:textColor="#android:color/background_light"/>
<DatePicker
android:id="#+id/datepic"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginLeft="6dp"
android:calendarTextColor="#android:color/background_light">
</DatePicker>
<Button
android:id="#+id/btnplantravel"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="#android:color/holo_red_light"
android:text="Plan Travel" />
</LinearLayout>
</ScrollView>
java file
private DatePicker datepic;
datepic = findViewById(R.id.datepic);
datepic.setBackground(new ColorDrawable(Color.WHITE));

TextView to fill space above a ListView

I want to show the word "STATS" above a Listview containing either 2 or 3 list items. I want the ListView at the bottom edge of the screen and the remaining space to be filled by the "STATS" TextView and the text centered vertically and horizontally. Basically a single word floating lonely in the exact middle of the remaining space.
I cannot do this in the "drag and drop" layout editor because it shows 8 placeholder items in the ListView, so I can't snap to the edges of things properly.
I've got the ListView how I want it, but the "STATS" is causing problems.
I've tried all sorts of things (apart from the right one, obviously). Here's my currently broken layout...
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:paddingBottom="#dimen/activity_vertical_margin"
android:paddingLeft="#dimen/activity_horizontal_margin"
android:paddingRight="#dimen/activity_horizontal_margin"
android:paddingTop="#dimen/activity_vertical_margin"
tools:context="uk.co.xxxxxxxxxxx.xxxxxxx.MainActivity"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical"
android:gravity="bottom"
>
<TextView
android:id="#+id/tv_reboot_message"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:textSize="30sp"
android:textStyle="bold"
android:textAlignment="center"
android:text="#string/stats"
/>
<ListView
android:id="#+id/lv_app_info"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:entries="#array/reboot_screen_items"
android:layout_gravity="center_horizontal|center_vertical"
/>
</LinearLayout>
I'm sure it's something trivial to do but its driving me mad.

Try this, it works well
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:paddingBottom="#dimen/activity_vertical_margin"
android:paddingLeft="#dimen/activity_horizontal_margin"
android:paddingRight="#dimen/activity_horizontal_margin"
android:paddingTop="#dimen/activity_vertical_margin"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical">
<TextView
android:id="#+id/tv_reboot_message"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:textSize="30sp"
android:textStyle="bold"
android:textAlignment="center"
android:text="STATE"
android:layout_gravity="center"
android:layout_weight="1"
android:gravity="center" />
<ListView
android:id="#+id/lv_app_info"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:entries="#array/reboot_screen_items"
android:layout_gravity="bottom" />
</LinearLayout>
Result

Can you try this?
<?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:paddingBottom="#dimen/activity_vertical_margin"
android:paddingLeft="#dimen/activity_horizontal_margin"
android:paddingRight="#dimen/activity_horizontal_margin"
android:paddingTop="#dimen/activity_vertical_margin"
tools:context="uk.co.xxxxxxxxxxx.xxxxxxx.MainActivity"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical"
>
<TextView
android:id="#+id/tv_reboot_message"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:textSize="30sp"
android:textStyle="bold"
android:textAlignment="center"
android:gravity="center"
android:text="STATS"
android:layout_above="#+id/lv_app_info"
/>
<ListView
android:id="#+id/lv_app_info"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:entries="#array/values"
android:layout_alignParentBottom="true"
android:layout_gravity="bottom"
/>
</RelativeLayout>
You can use RelativeLayout to fill up the remaining space to show your TextView.

Use gravity and layout_gravity attributes.
Gravity and layout_gravity

How to bring imageView in front of cardview ? When both are of Relative Layout childs

I have a layout XML:
<?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:id="#+id/containor"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#fff6da"
android:paddingBottom="#dimen/activity_vertical_margin"
android:paddingLeft="#dimen/activity_horizontal_margin"
android:paddingRight="#dimen/activity_horizontal_margin"
android:paddingTop="#dimen/activity_vertical_margin"
tools:context="com.vats.vatishs.cardviewprogrammatically.MainActivity">
<FrameLayout
android:id="#+id/card"
android:layout_width="220dp"
android:layout_marginTop="10dp"
android:layout_height="wrap_content">
<TextView
android:background="#color/white"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:padding="10dp"
android:text="Hello I am a text View." />
</FrameLayout>
<ImageView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginLeft="210dp"
android:background="#drawable/select_delete_chim" />
</RelativeLayout>
which works fine. The result will be a image view above frame layout but when I use the following xml in which i have replace frame layout with CardView:
<?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:id="#+id/containor"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#fff6da"
android:paddingBottom="#dimen/activity_vertical_margin"
android:paddingLeft="#dimen/activity_horizontal_margin"
android:paddingRight="#dimen/activity_horizontal_margin"
android:paddingTop="#dimen/activity_vertical_margin"
tools:context="com.vats.vatishs.cardviewprogrammatically.MainActivity">
<android.support.v7.widget.CardView
android:id="#+id/card"
android:layout_width="220dp"
android:layout_marginTop="10dp"
android:layout_height="wrap_content">
<TextView
android:background="#color/white"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:padding="10dp"
android:text="Hello I am a text View." />
</android.support.v7.widget.CardView>
<ImageView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginLeft="210dp"
android:background="#drawable/select_delete_chim" />
</RelativeLayout>
then the result will be: ImageView at the back of CardView.
Any Solution for this?
One thing more, It will work fine on pre-lollipop devices but on lollipop it doesn't work.
Output with CardView on pre-lollipop devices (required output)
Output with CardView on lollipop devices

CardView has default elevation which is greater than ImageView, So we have to add greater elevation in ImageView than CardView's elevation.
e.g. imageView.setElevation(10); and cardView.setElevation(5);
Now, its working fine on all devices.

You can use this attr
app:cardElevation="0dp"
to the CardView in XMl .
Like this
<android.support.v7.widget.CardView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center"
app:cardElevation="0dp"
app:cardUseCompatPadding="true">
This will make other view in Front of CardView

Do it like this,
<android.support.v7.widget.CardView
xmlns:card_view="http://schemas.android.com/apk/res-auto"
xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/myCardView"
android:layout_width="match_parent"
android:layout_height="match_parent"
card_view:cardBackgroundColor="#android:color/transparent"
card_view:cardElevation="0dp">
<ImageView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="#drawable/ic_edit"
android:background="#android:color/transparent"/>
</android.support.v7.widget.CardView>
It will bring the ImageView to front.

Write this line in your java code after initializing the ImageView.
imageView.bringToFront();

Adding just app:cardElevation="-1dp" to the CardView in your xml will fix the issue.

Write Image view Above cardview,hopefully it solve the problem
<?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:id="#+id/containor"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#fff6da"
android:paddingBottom="#dimen/activity_vertical_margin"
android:paddingLeft="#dimen/activity_horizontal_margin"
android:paddingRight="#dimen/activity_horizontal_margin"
android:paddingTop="#dimen/activity_vertical_margin"
tools:context="com.vats.vatishs.cardviewprogrammatically.MainActivity">
<ImageView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginLeft="210dp"
android:src="#drawable/select_delete_chim" />
<android.support.v7.widget.CardView
android:id="#+id/card"
android:layout_width="220dp"
android:layout_marginTop="10dp"
android:layout_height="wrap_content">
<TextView
android:background="#color/white"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:padding="10dp"
android:text="Hello I am a text View." />
</android.support.v7.widget.CardView>
</RelativeLayout>

Here is a complete answer to your question
You can wrap CardView with a FrameLayout and put an ImageView outside of the CardView's parent like that
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout ...>
<FrameLayout...>
<android.support.v7.widget.CardView...>
<Content/>
</android.support.v7.widget.CardView>
</FrameLayout>
<ImageView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
... />
</RelativeLayout>
alternatively here is the Java code that supports Android versions below and after lollipop
image.bringToFront();
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
image.setElevation(10);
}
this will bring the image to the front

an easy way is to use something like this:
<RelativeLayout
android:layout_width="match_parent"
android:orientation="vertical"
android:layout_height="match_parent">
<LinearLayout
android:layout_width="match_parent"
android:orientation="vertical"
android:layout_height="wrap_content">
<android.support.v7.widget.CardView
android:layout_width="match_parent"
android:layout_height="wrap_content">
....
</android.support.v7.widget.CardView>
</LinearLayout>
<ImageView
android:layout_width="wrap_parent"
android:layout_height="wrap_content">
note that this is because the elevation of cardview. its default elevation is bigger than ImageView.
this way you can use a LinearLayout to put CardView inside it. then you can use RelativeLayout to make ImageView on the top of CardView!
https://stacklearn.ir/course/kotlin-basic-programming-course

CardView -> app:cardElevation ="4dp"
ImageView -> android:translationZ="6dp"
Send the CardView to the back.

Android: How to create a specific horizontal linear layout

I am making an app where there is a custom search bar. I want there to be a search part that is big, a spinner for region selection that is a small square, and a search button that is also a small square.
Here is what I am talking about.
The code I have right now is this:
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent"
android:layout_height="match_parent" android:paddingLeft="#dimen/activity_horizontal_margin"
android:paddingRight="#dimen/activity_horizontal_margin"
android:paddingTop="#dimen/activity_vertical_margin"
android:paddingBottom="#dimen/activity_vertical_margin" tools:context=".MainActivity">
<LinearLayout
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:orientation="horizontal"
>
<EditText
android:hint="#string/summoner_name"
android:layout_width="wrap_content"
android:layout_weight="75"
android:layout_height="wrap_content"
android:id="#+id/summoner_name"/>
<Spinner
android:layout_weight="1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="#+id/regions">
</Spinner>
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_weight="1"
android:id="#+id/search_button"/>
</LinearLayout>
However, this makes the search half the screen, and the button for 2/5's the screen, and the spinner for a smaller ammount. Anyone know how to accomplish this?
Thanks :)

give weight 1 to EditText android:layout_weight="1" , and remove weight tags from other components.
Also you will require to set Spinners width statically, if above doesnt work because of Spinner's width part

like this?
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent"
android:layout_height="match_parent" android:paddingLeft="#dimen/activity_horizontal_margin"
android:paddingRight="#dimen/activity_horizontal_margin"
android:paddingTop="#dimen/activity_vertical_margin"
android:paddingBottom="#dimen/activity_vertical_margin" tools:context=".MainActivity"
android:orientation="vertical">
<LinearLayout
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:orientation="horizontal" >
<EditText
android:layout_width="wrap_content"
android:layout_weight="75"
android:layout_height="wrap_content"
android:id="#+id/summoner_name"/>
<Spinner
android:layout_weight="1"
android:layout_width="100dp"
android:layout_height="wrap_content"
android:id="#+id/regions"/>
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_weight="1"
android:id="#+id/search_button"/>
</LinearLayout>
</LinearLayout>

TextViews on top and bottom, remaining space filled with ListView

I'm trying to put a TextView on top, another on bottom, and a ListView in between using the remaining space.
However, my ListView is taking all the space to the bottom, making the last TextView to not even show up. The only way I can make it show up is to give the ListView a fixed height, like 100dp.
My layout:
<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="wrap_content"
android:paddingBottom="#dimen/activity_vertical_margin"
android:paddingLeft="#dimen/activity_horizontal_margin"
android:paddingRight="#dimen/activity_horizontal_margin"
android:paddingTop="#dimen/activity_vertical_margin"
tools:context=".MainActivity" >
<TextView
android:id="#+id/id_task_list_title"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="#string/title_task_list"
style="?android:attr/listSeparatorTextViewStyle" />
<ListView
android:id="#+id/id_task_list_view"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_below="#id/id_task_list_title" />
<TextView
android:id="#+id/id_task_list_test"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_below="#id/id_task_list_view"
android:text="OMG Test" />
</RelativeLayout>

Use LinearLayout as follows:
<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:paddingBottom="#dimen/activity_vertical_margin"
android:paddingLeft="#dimen/activity_horizontal_margin"
android:paddingRight="#dimen/activity_horizontal_margin"
android:paddingTop="#dimen/activity_vertical_margin"
tools:context=".MainActivity"
android:orientation="vertical">
<TextView
android:id="#+id/id_task_list_title"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="#string/title_task_list"
style="?android:attr/listSeparatorTextViewStyle" />
<ListView
android:id="#+id/id_task_list_view"
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_weight="1"/>
<TextView
android:id="#+id/id_task_list_test"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="OMG Test" />
</LinearLayout>

This should solve your issue by placing your ListView between the TextViews using both android:layout_above and android:layout_below :
<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="wrap_content"
android:paddingBottom="#dimen/activity_vertical_margin"
android:paddingLeft="#dimen/activity_horizontal_margin"
android:paddingRight="#dimen/activity_horizontal_margin"
android:paddingTop="#dimen/activity_vertical_margin"
tools:context=".MainActivity" >
<TextView
android:id="#+id/id_task_list_title"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="#string/title_task_list"
style="?android:attr/listSeparatorTextViewStyle" />
<TextView
android:id="#+id/id_task_list_test"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:text="OMG Test" />
<ListView
android:id="#+id/id_task_list_view"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_above="#id/id_task_list_test"
android:layout_below="#id/id_task_list_title"/>
</RelativeLayout>

It can be achieved one of the two ways
1) Using Linear Layout (Straight forward)
2) Using Relative Layout with referencing the view position with respected to the other views.
In your case
1) Change Relative to LinearLayout and work will be done.
2)
<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="wrap_content"
android:paddingBottom="#dimen/activity_vertical_margin"
android:paddingLeft="#dimen/activity_horizontal_margin"
android:paddingRight="#dimen/activity_horizontal_margin"
android:paddingTop="#dimen/activity_vertical_margin"
tools:context=".MainActivity" >
<TextView
android:id="#+id/id_task_list_title"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="#string/title_task_list"
style="?android:attr/listSeparatorTextViewStyle" />
<ListView
android:layout_below="#+id/id_task_list_title"
android:id="#+id/id_task_list_view"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_below="#id/id_task_list_title" />
<TextView
android:layout_below="#+id/id_task_list_view"
android:id="#+id/id_task_list_test"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_below="#id/id_task_list_view"
android:text="OMG Test" />
</RelativeLayout>

This can be done through coding by getting the height of screen and alloting layout param width to list view like this
height of list view=screen height-(height of textView1+Height of textView2).

Instead of Using RelativeLayout , use LinearLayout with Orientation Vertical.
I think it solves your problem
Thank you