Develop Reference

Creating a layout over content background

My question is simple is a UI/UX design question. I want to get this model for my layout
I have no idea how is this called, want some help and idea for coding this one I tried few options but nothing.

To create this above layout You can use either of FrameLayout or Co-ordinator Layout or the new ConstraintLayout.
This will do it for you.
Refer this link to understand the above design.
<RelativeLayout 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="xyz.himanshusingh.cryptokoin.ui.display.MainActivity">
<android.support.v7.widget.Toolbar
android:id="#+id/toolbar"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_gravity="top"
android:background="#drawable/toolbargradient" />
<FrameLayout
android:layout_width="match_parent"
android:layout_height="130dp"
android:layout_below="#+id/toolbar"
android:background="#drawable/toolbargradient" />
<android.support.v7.widget.CardView
android:id="#+id/cardView"
android:layout_width="match_parent"
android:layout_height="150dp"
android:layout_marginLeft="10dp"
android:layout_marginRight="10dp"
android:layout_marginTop="80dp"
app:cardCornerRadius="10dp">
</android.support.v7.widget.CardView>
</RelativeLayout>
and toolbargradient.xml,
<shape xmlns:android="http://schemas.android.com/apk/res/android"
android:shape="rectangle">
<gradient
android:type="linear"
android:startColor="#f7792e"
android:endColor="#ef246b"
android:angle="180"/>
</shape>
This XML code will almost make the design for you. In place of CardView you can use whatever you want.Like a RecyclerView, DatePicker etc.
Hope this helps :)

Try using a Relative Layout for the image & recycler view and put the recycler view in cardview. This should work for 1st & 2nd view & in 3rd inside a cardview add a calendar & a recycler view below it. Hope this helps

Google search alike SearchView

I've would like set to grey color(icons and text) but now is showing as white color.
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="horizontal"
android:gravity="end">
<TextView
android:id="#+id/tv_toolbar_title"
android:layout_width="0dp"
android:layout_weight="1"
android:layout_height="wrap_content"
android:layout_gravity="center_vertical"
android:text="Titulo_ventana"/>
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:gravity="end"
android:orientation="horizontal"
android:padding="10dp">
<android.support.v7.widget.CardView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:elevation="#dimen/cardview_default_elevation">
<android.support.v7.widget.SearchView
android:id="#+id/mySearchview"
android:label="#string/app_name"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:theme="#style/Base.Widget.AppCompat.SearchView">
</android.support.v7.widget.SearchView>
</android.support.v7.widget.CardView>
</LinearLayout>
</LinearLayout>
I'd would like to reach something like this searchview within the toolbar and gray textcolor:
The left and right menu icons are optional.
The searchview is foldable by default, I don't mind if this feature should be changed.

The search view, that you want to achieve in fact is not a SearchView. It's a custom component. Here's the view tree that can be obtained using Hierarchy Viewer tool:
Here's the OverlaySearchPlateContainer:
As you can see from package name, it is shipped with Play Services, thus source code is not available.
Nevertheless, we can compare that tree with the tree of SearchView. Here's tree that can be obtained when ordinary SearchView is used:
Thus, you can see, that OverlaySearchPlateContainer is not a descendant of a SearchView, hence the UI you want to achieve cannot be accomplished using solely styles/themes.
I would recommend to not reinvent a wheel and to utilize 3rd party libraries, for example SearchBar-SearchView, where SearchView widget looks like this:

I have one solution its working fine in my application. You may try this.
EditText txtSearch = (EditText) searchView.findViewById(android.support.v7.appcompat.R.id.search_src_text);
txtSearch.setHint(getResources().getString(R.string.search));
txtSearch.setHintTextColor(Color.GRAY);
txtSearch.setTextColor(Color.GRAY);

You can set the background of search view
<android.support.v7.widget.SearchView
android:id="#+id/searchViewContact"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_centerVertical="true"
app:searchIcon="#mipmap/icon_search"
app:closeIcon="#mipmap/icon_close"
android:background="#drawable/search_view_background"
android:layout_margin="5dp">
</android.support.v7.widget.SearchView>
search_view_background.xml
<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android"
android:shape="rectangle">
<solid android:color="#dcdee1"/>
<stroke
android:color="#d7d3d3"
android:width="1dp"/>
<corners
android:radius="5dp"/>
</shape>

To change the text color, put this in your styles.xml:
<style name="MySearchView" parent="Base.Widget.AppCompat.SearchView">
<item name="android:editTextColor">#color/text_color</item>
<item name="android:textColorHint">#color/hint_color</item>
</style>
Replace #color/text_color and #color/hint_color to suit your needs.
And then change the SearchView theme attribute in your XML layout:
<android.support.v7.widget.SearchView
android:id="#+id/mySearchview"
android:label="#string/app_name"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:theme="#style/MySearchView">
</android.support.v7.widget.SearchView>

Adding shadow below TabBar - Material Design

I have an actionbar and tab bar. I removed shadow below actionbar with
<item name="android:windowContentOverlay">#null</item>
Though, I want to add shadow under tab bar. I'm using SlidingTabLayout. My tab TextView:
<TextView xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/tabText"
android:layout_width="wrap_content"
android:layout_height="#dimen/actionbar_height"
android:textColor="#color/tab_color"
android:gravity="center"
android:textAllCaps="true"
android:singleLine="true" />
How to do that?

jmols answer results in a different shadow than what Google apps (e.g. Play Newsstand) use. This is my method, which results in the shadow looking exactly the same as Play Newsstand:
Create a drawable called shadow.xml:
<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android">
<gradient
android:startColor="#android:color/transparent"
android:endColor="#33000000"
android:angle="90">
</gradient>
</shape>
Then, set that shadow to your content layout, for example:
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent">
<!-- Your views here -->
<View
android:layout_width="match_parent"
android:layout_height="8dp"
android:background="#drawable/shadow" />
</RelativeLayout>
Placed underneath your toolbar/action bar, this will look exactly the same as the implementation in Play Newsstand and Play Store.

Shadows are currently only supported on Api level 21 (as they are rendered in real time) and are not provided by the support library unfortunately.
Hence you will have to mimic the shadows yourself using a custom drawable on api levels < 21.
The easiest way to do this is:
take the shadow 9-patch from the Google IO app.
set that shadow to your main content layout, for example:
<RelativeLayout
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">
<Toolbar
android:id="#+id/tb_toolbar"
android:layout_width="match_parent"
android:layout_height="#dimen/abc_action_bar_default_height_material"
android:title="#string/toolbar_title"
android:elevation="#dimen/toolbar_elevation"/>
<FrameLayout
android:id="#+id/fl_fragment_container"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_below="#id/tb_toolbar"
android:foreground="#drawable/bottom_shadow"/>
</RelativeLayout>
Note: the only notable exception to this is CardView, this one does cast its own shadow on older api levels.
Have a look at this post for more information.

If you are using Android Material Design, to add a shadow to a view you need to specify the android:elevation attribute in your layout or call myView.setElevation() method in your code. You can have more on defining shadows with material design in the android documentation

Just add elevation to your Tablayout (0dp - 25dp). Read the material design guidelines for more information about elevation.
android:elevation="10dp"
Below example:
<android.support.v7.widget.Toolbar xmlns:local="http://schemas.android.com/apk/res-auto"
android:id="#+id/toolbar"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:minHeight="?attr/actionBarSize"
android:background="#color/splashGreenTop"
local:theme="#style/ThemeOverlay.AppCompat.Dark.ActionBar"
local:popupTheme="#style/ThemeOverlay.AppCompat.Light"
android:elevation="10dp" />
<android.support.design.widget.TabLayout
android:id="#+id/tab_layout"
android:layout_below="#+id/toolbar"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="?attr/colorPrimary"
android:minHeight="?attr/actionBarSize"
android:elevation="10dp"/>
Same question: Link
be aware, if you have the following line in the manifest then shadows wont show:
android:hardwareAccelerated="false"
And another link to follow: Link

Drop shadow renders without transparency

In this project (feature/drop-shadow branch) I am trying to add a drop shadow above a view container. Therefore, I defined the following shape (drawable/shadow_above):
<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android">
<gradient
android:startColor="#20000000"
android:endColor="#android:color/transparent"
android:angle="90">
</gradient>
</shape>
This is then used in the layout file (container_infos.xml) as follows:
<View
android:background="#drawable/shadow_above"
android:layout_width="match_parent"
android:layout_height="4dp"/>
The screenshot shows the result. For some reason the drop shadow looks awful. There is no transparency. What am I doing wrong? Feel free to send a pull request to my open source project.
Solution using a RelativeLayout
I managed to get the desired result by using a RelativeLayout in fragment_map.xml:
<?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:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
tools:context=".ui.MainActivity">
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_weight="1">
<FrameLayout
android:id="#+id/map_container"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:background="#android:color/holo_purple"/>
<View
android:background="#drawable/shadow_above"
android:layout_alignBottom="#id/map_container"
android:layout_width="match_parent"
android:layout_height="4dp"/>
</RelativeLayout>
<include
layout="#layout/container_infos"/>
</LinearLayout>
There might be room for optimization.

as far as I see you should give map_container_infos_layout a negative top margin of the size 4dp and it should look better

android how to code dialog layout

I want to code this dialog layout: http://fooh.pl/pokaz/348687655.png
Green containner is in orange container. At the top of the dialogue is TextView. In the upper right corner is a button.
I know the types of layouts, but I failed.
Can anyone help me? Please.

Here you go:
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#drawable/rounded_orange">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerHorizontal="true"
android:layout_margin="8dp"
android:text="Text"/>
<RelativeLayout
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_marginTop="32dp"
android:background="#drawable/rounded_green">
</RelativeLayout>
</RelativeLayout>
Where the drawables (only green shown here) are laid out like this:
<?xml version="1.0" encoding="UTF-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android" android:shape="rectangle">
<solid android:color="#0F0"/>
<corners android:radius="16dp"/>
</shape>
If you need help applying the custom layout.xml file to your dialog, read up on 'Creating a Custom Dialog' in the official docs of Dialog.

Here's a link to the documentation with good examples or how to create a dialog fragment based on a layout.
And here is a good SO answer that shows how to inflate a layout for use in a dialog fragment.