Develop Reference

Wierd white line in android start activity

When I changed main activity I started getting this wierd line on start activity, how can I show usuall date time, batter and everything you extect to see at top of screen?

You can set statusbar color with theme.
<resources>
<!-- Base application theme. -->
<style name="AppTheme" parent="Theme.AppCompat.Light">
<item name="colorPrimary">#color/colorPrimary</item>
<item name="colorPrimaryDark">#color/colorSecondary</item>
<item name="colorAccent">#color/colorAccent</item>
<item name="android:statusBarColor">#color/colorPrimary</item>
</style>
</resources>
Please check your theme in xml file.

I made stupid mistake and added attribute of noactionbar in manifest

Transparent 9-patch over colored background

I'm trying to create a splash activity that uses a 9-patch image that is transparent apart from my app's logo. Consequently, I would like to set the background color of the window to show through behind my logo. However, no matter what I do, it seems that the background is insisting on being black.
I've tried setting both background and colorBackground:
<style name="Splash" parent="android:Theme">
<item name="android:windowBackground">#drawable/splash</item>
<item name="android:background">#android:color/white</item>
<!--
<item name="android:colorBackground">#android:color/white</item>
-->
<item name="android:windowNoTitle">true</item>
</style>
But neither works when windowBackground is also set.
How can I set the background color of my splash activity so that transparency in my 9-patch image is filled in correctly?

I tested your code, and I found that in your style I can specify android:windowBackground, android:background, or android:colorBackground, but not more than one at the same time.
I was successful in using a color for the background in the styles.xml, and then specifing the image in the regular layout XML, using an alpha property for transparency.
Styles.xml example:
<resources>
<!-- Base application theme. -->
<style name="AppTheme" parent="Theme.AppCompat.Light.NoActionBar">
<!-- Customize your theme here. -->
<item name="android:colorBackground">#android:color/holo_blue_bright</item>
</style>
</resources>
layout.xml example:
<ImageView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="#drawable/ic_launcher"
android:alpha="0.5"/>
I have the style set in the AndroidManifest.xml under the application section:
android:theme="#style/AppTheme"

Android webview goes through action when setTranslucentStatus is true

This is my second time building an Android app, but it is my first time I want to use "Material Design".
The problem is that the webview goes trough the action when the systembar / status bar has a translucent tint.
So the questionis...how can I prevent the webview from rendering/showing trough the action bar?
If you need more information of my setup, be free to ask!
Thanks for the help!
I can't post images yet :/ because of my reputation

In styles.xml add this:
<style name="MyTheme" parent="Theme.AppCompat.Light.NoActionBar">
<!-- Customize your theme here. -->
<item name="colorPrimary">#color/color_primary</item>
<item name="colorPrimaryDark">#color/color_primary_dark</item>
<item name="colorAccent">#color/accent_color</item>
<item name="android:windowTranslucentStatus">false</item>
<item name="android:windowContentTransitions">true</item>
</style>
and in colors.xml define your custom colors like this:
<?xml version="1.0" encoding="utf-8"?>
<resources>
<color name="color_primary">#009933</color>
<color name="color_primary_dark">#009933</color>
<color name="accent_color">#009933</color>
</resources>
then in manifest define your style in application tag like:
<application
...
....
android:theme="#style/MyTheme" >

Android Dialog in Custom Style: Remove Blue Line and set ActionBar Color

I am creating a custom Dialog with the following code and the view as follow:
mCountryDialog = new Dialog(getActivity(),android.R.style.Theme_Holo);
However, i want to remove the blue divider and change the background color of the "action bar"
Attempted Result
With reference to stackoverflow, i created a custom dialog style in style.xml
`<style name="LoCountryDialog" parent="android:Theme.Holo">
<item name="android:windowFullscreen">true</item>
<item name="android:windowFrame">#null</item>
<item name="android:windowNoTitle">false</item>
<item name="android:windowIsFloating">false</item>
<item name="android:windowContentOverlay">#null</item>
<item name="android:windowBackground">#color/main_theme_red</item>
`
I would change the background color from black to red but the "Topbar" which shows Time, battery level ,etc was gone and the blue divider line remains here.
It will be great if anyone would share the solution with me, many thanks in advance!

Simply add this line to your Dialog.onCreateView() Method:
getDialog().getWindow().requestFeature(Window.FEATURE_NO_TITLE);

http://jgilfelt.github.io/android-actionbarstylegenerator
It will generate all necessary nine patch assets plus associated XML drawables and styles which you can copy straight into your project.
You create a theme with these styles similar like that
<?xml version="1.0" encoding="utf-8"?>
<resources>
<!-- the theme applied to the application or activity -->
<style name="CustomActionBarTheme" parent="#style/Theme.Holo.Light.DarkActionBar">
<item name="android:actionBarStyle">#style/MyActionBar</item>
</style>
<!-- ActionBar styles -->
<style name="MyActionBar" parent="#style/Widget.Holo.Light.ActionBar.Solid.Inverse">
<item name="android:background">#ff0000</item>
</style>
</resources>
after this you apply your theme to your entire app or individual activities:
for further reading, please see the documentation

ActionBar padding between elements:

I am trying to put padding between items in the action bar - specially my logo and the Navigation drawer icon, following is the style I am using:
<resources>
<!-- the theme applied to the application or activity -->
<style name="CustomActionBarTheme" parent="#android:style/Theme.Holo.Light">
<item name="android:actionBarStyle">#style/MyActionBar</item>
</style>
<!-- ActionBar styles -->
<style name="MyActionBar" parent="#android:style/Widget.Holo.Light.ActionBar">
<item name="android:background">#android:color/transparent</item>
<item name="android:windowActionBarOverlay">true</item>
<item name="android:icon">#drawable/logo_header</item>
<item name="android:actionButtonStyle">#style/MyActionButtonStyle</item>
</style>
<style name="MyActionButtonStyle" parent="#android:style/Widget.ActionButton">
<item name="android:minWidth">32dip</item>
<item name="android:padding">12dp</item>
</style>
</resources>
However these two dont seem to work:
<item name="android:minWidth">32dip</item>
<item name="android:padding">12dp</item>
Any idea what I am missing here?

I'd make the logo into a drawable layer list instead and that way i can set its padding something like this:
<?xml version="1.0" encoding="utf-8"?>
<layer-list
xmlns:android="http://schemas.android.com/apk/res/android" >
<item
android:drawable="#drawable/my_main_icon"
android:right="20dp"/>
</layer-list>
And if you use this please update your manifest to use this drawable as the main icon instead of the current.
update: it might be better to use this icon as a logo as per reading on stackOverFlow.
so in your manifest in application tag set android:logo="my_main_icon" , researching this still.
update: if you use logo i think you have to turn it on in the actionbar...
setDisplayUseLogoEnabled() Enables the use of an alternative image (a
"logo") in the Action Bar, instead of the default application icon. A
logo is often a wider, more detailed image that represents the
application

i think the correct syntax here would be:
<item
...
android:layout_padding="12dp"
...
/>