Develop Reference

Ripple colour has already been defined Android

I am trying to import a library in Android:
compile 'com.materialcontentoverflow:materialcontentoverflow:1.1.0'
But when I try it tells me that:
C:\Users\A\Desktop\Project\app\build\intermediates\exploded-aar\me.drakeet.materialdialog\library\1.2.2\res\values\values.xml
But if I look in that project there is no values with rippleColor. This is the file:
<?xml version="1.0" encoding="utf-8"?>
<resources>
<!-- From: file:/Users/drakeet/AndroidStudioProjects/MaterialDialog/library/src/main/res/values/color.xml -->
<eat-comment/>
<color name="card_background">#ffffff</color>
<color name="card_shadow">#10000000</color>
<color name="lite_blue">#ff359ff2</color>
<color name="window_background">#00000000</color>
<!-- From: file:/Users/drakeet/AndroidStudioProjects/MaterialDialog/library/src/main/res/values/dimens.xml -->
<eat-comment/>
<dimen name="activity_horizontal_margin">16dp</dimen>
<dimen name="activity_vertical_margin">16dp</dimen>
<!-- From: file:/Users/drakeet/AndroidStudioProjects/MaterialDialog/library/src/main/res/values/strings.xml -->
<eat-comment/>
<string name="action_settings">Settings</string>
<string name="app_name">MaterialDialog</string>
<string name="hello_world">Hello world!</string>
The library that I am trying to import has the following as values.xml:
<?xml version="1.0" encoding="utf-8"?>
<resources>
<!-- From: file:/home/artur/workspaceAndroidStudio/MaterialContentOverflow/materialcontentoverflow/src/main/res/values/colors.xml -->
<eat-comment/>
<color name="shadow_end_color">#android:color/transparent</color>
<color name="shadow_mid_color">#14000000</color>
<color name="shadow_start_color">#44000000</color>
<declare-styleable name="FloatingActionButton"><attr name="android:background"/><attr name="backgroundTint"/><attr name="backgroundTintMode"/><attr format="color|reference" name="rippleColor"/><attr name="fabSize"><enum name="normal" value="0"/><enum name="mini" value="1"/></attr><attr name="elevation"/><attr format="dimension|reference" name="pressedTranslationZ"/></declare-styleable>
<declare-styleable name="MaterialContentOverflow"><attr format="reference" name="buttonDrawable"/><attr format="reference" name="fabButtonColor"/><attr format="reference" name="contentColor"/><attr format="enum" name="buttonPosition"><enum name="left" value="0"/><enum name="center" value="1"/><enum name="right" value="2"/></attr></declare-styleable>
<!-- From: file:/home/artur/workspaceAndroidStudio/MaterialContentOverflow/materialcontentoverflow/src/main/res/values/dimens.xml -->
<eat-comment/>
<dimen name="fab_content_size">24dp</dimen>
<dimen name="fab_elevation">8dp</dimen>
<dimen name="fab_size_mini">40dp</dimen>
<dimen name="fab_size_normal">56dp</dimen>
<dimen name="fab_translation_z_pressed">6dp</dimen>
I can't work out what the problem is?! Can anyone help please?

Checking the source on github
<!-- Ripple color for the FAB. -->
<attr name="rippleColor" format="color|reference" />
This library is using the rippleColor.
You can't use it since it is used by supportlibrary.
You can clone the library changing the attr.

Referencing a selector causes an InflationException

I'm trying to develop two themes for my app, and depending on the theme, I need a View to use a different selector. Though when I create a reference which determines the correct selector to use, I get an InflationException error.
Here's my attrs.xml:
<?xml version="1.0" encoding="utf-8"?>
<resources>
<declare-styleable name="ReditrTheme">
<attr name="downvoteArrow" format="reference" />
<attr name="upvoteArrow" format="reference" />
</declare-styleable>
<declare-styleable name="VoteState">
<attr name="enabled" format="boolean" />
</declare-styleable>
</resources>
Here's my themes.xml:
<?xml version="1.0" encoding="utf-8"?>
<resources>
<style name="DarkTheme" parent="#android:style/Theme.Holo">
<item name="upvoteArrow">#drawable/upvote_states</item>
<item name="downvoteArrow">#drawable/downvote_states</item>
</style>
<style name="LightTheme" parent="#android:style/Theme.Holo.Light">
<item name="upvoteArrow">#drawable/upvote_states_l</item>
<item name="downvoteArrow">#drawable/downvote_states_l</item>
</style>
</resources>
Here's my upvote_states.xml:
<selector xmlns:android="http://schemas.android.com/apk/res/android" xmlns:app="http://schemas.android.com/apk/res/com.reditr.app">
<item android:drawable="#drawable/ic_action_arrow_top_colored" app:enabled="true"/>
<item style="#drawable/ic_action_arrow_top" app:enabled="false"/>
</selector>
Here's my upvotes_states_l.xml:
<selector xmlns:android="http://schemas.android.com/apk/res/android" xmlns:app="http://schemas.android.com/apk/res/com.reditr.app">
<item android:drawable="#drawable/ic_action_arrow_top_colored" app:enabled="true"/>
<item style="#drawable/ic_action_arrow_top_l" app:enabled="false"/>
</selector>
downvotes_states.xml and downvotes_states_l.xml are identical to the ones above, they just use ic_action_arrow_bottom instead.
Finally, here's my View that I'm trying to apply the reference to:
<com.example.views.UpvoteView
android:id="#+id/upvote"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:gravity="center"
android:scaleType="fitCenter"
android:src="?attr/upvoteArrow" />
I tried a few solutions online but they were always a bit slightly different to my issue and didn't fix my problem.
Thanks in advance!

Just realized the mistake I made. In my states.xml files, I used the style attribute for some reason, it should have been android:drawable.

How to reference a style in a custom theme

I have a login screen that is branded differently for different builds of my application. I need the background image to be different in the layout file for this screen, so I want to point to a different style for the top level container. I'm a bit at a loss at how to do this.
I have declared a styleable something like:
<resources>
<declare-styleable name="ThemeBase">
<attr name="loginPageContainerStyle" format="reference" />
</declare-styleable>
</resources>
I have several different themes for the application, as such:
<resources>
<style name="ThemeBase" parent="android:style/Theme.Light" />
<style name="ThemeOne" parent="ThemeBase">
<item name="loginPageContainerStyle">#style/loginPageContainerThemeOne</item>
</style>
<style name="ThemeTwo" parent="ThemeBase">
<item name="loginPageContainerStyle">#style/loginPageContainerThemeTwo</item>
</style>
</resources>
And I have defined the following styles:
<resources>
<style name="loginPageContainerThemeOne">
<item name="android:background">#drawable/background_theme_one</item>
</style>
<style name="loginPageContainerThemeTwo">
<item name="android:background">#drawable/background_theme_two</item>
</style>
</resources>
And finally a login.xml file something like:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/loginRoot"
style= [ ? WHAT GOES HERE ? ]
android:gravity="center_horizontal"
android:orientation="horizontal">
[ LAYOUT STUFF ... ]
</LinearLayout>
Am I doing anything wrong? Can this be done this way?

Ok I figured it out, the style reference should be:
style="?attr/loginPageContainerStyle"
Figured I would share.

Why aren't the colours in my res file being recognised?

I'm getting this error in my code:
Error: No resource found that matches the given name (at 'background' with value #color/red').
Here is my TextView:
<TextView
android:id="#+id/tv01"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="#string/prizeFund"
android:background="#color/red">
</TextView>
And the color definition, in colors.xml in res/values:
<?xml version="1.0" encoding="utf-8"?>
<resources>
<color name="red">#ff0000</color>
<color name="green">#00ff00</color>
<color name="blue">#0000ff</color>
</resources>

Try to clean your project The R.java file will be regenerated for you
On eclipse go to Project---->Clean..
also the resources must be in strings.xml not colors.xml
below an exemple of the strings.xml file
<?xml version="1.0" encoding="utf-8"?>
<resources>
<!-- Strings Resources -->
<string name="animations">Animations: </string>
<string name="compass">Compass: </string>
<!-- Colors Resources -->
<color name="opaque_white">#FFFFFFFF</color>
<color name="gray">#FF888888</color>
</resources>

How to refer android attribute layout_width from custom attribute?

I want to separate the usage of my application on xlarge devices and usage on other devices to restrict layout_width parameter by 720dp for xlarge. For this purpose I create values/attrs.xml:
<?xml version="1.0" encoding="UTF-8"?>
<resources>
<attr name="layoutWidth" format="reference|dimension" />
</resources>
with custom parameter layoutWidth to set it in
android:layout_width="?layoutWidth"
Furtner, I need to specify two themes.xml files for xlarge and ordinary devices in values-xlarge and values directories:
values-xlarge/themes.xml
<?xml version="1.0" encoding="utf-8"?>
<resources>
<style name="Theme" parent="android:Theme">
<item name="layoutWidth">720dp</item>
</style>
</resources>
values/themes.xml
<?xml version="1.0" encoding="utf-8"?>
<resources>
<style name="Theme" parent="android:Theme">
<item name="layoutWidth">What should I write here!?</item>
</style>
</resources>
So, how can I make a reference on Android "fill_parent" parameter at this place? It seems like #android:layout_width/fill_parent, but I have compiling Error:
No resource found that matches the given name (at 'layoutWidth' with value '#android:layout_width/fill_parent').

I have found a solution by means of changing values/attrs.xml to:
<?xml version="1.0" encoding="UTF-8"?>
<resources>
<attr name="layoutWidth" format="dimension">
<enum name="fill_parent" value="-1" />
<enum name="match_parent" value="-1" />
<enum name="wrap_content" value="-2" />
</attr>
</resources>
Now, I can write in values/themes.xml:
<?xml version="1.0" encoding="utf-8"?>
<resources>
<style name="Theme" parent="android:Theme">
<item name="layoutWidth">match_parent</item>
</style>
<resources>
But the question still remain: Is it possible to refer to Android layout_width parameter from this place?

You should create attrs.xml file inside values folder and then add the below code in it:
<?xml version="1.0" encoding="utf-8"?>
<resources>
<item name="custom_match_parent" type="dimen">-1</item>
<item name="custom_wrap_content" type="dimen">-2</item>
</resources>
To access the above created attrs.xml add the below line inside your dimens.xml file as follows:
<dimen name="max_layout_width">#dimen/custom_match_parent</dimen>
Now to access that from a layout file you must do something like
<FrameLayout
android:layout_width="#dimen/max_layout_width"
android:layout_height="match_parent">
<!--Do what you like to do here-->
</FrameLayout>
Hope this helps! :-)

Well, this is a late response...but, for posterity and sanity, the answer can be found below and more info can be found at http://developer.android.com/guide/topics/ui/themes.html
styles.xml:
<?xml version="1.0" encoding="utf-8"?>
<resources>
<style name="YourStyle" parent="#android:style/TextAppearance.Medium">
<item name="android:layout_width">fill_parent</item>
<item name="android:layout_height">wrap_content</item>
</style>
</resources>
This should work for any parent style that uses android:layout_width, such as parent="#android:style/Widget.TextView"

Not sure if you can add this attribute somewhere in your resources or style tags, but it may help (if its legal)
xmlns:android="http://schemas.android.com/apk/res/android"
This specifies the namespace where layout_width and layout_height are defined (as well as the constants fill_parent and wrap_content).