I have an AutoCompleteTextView component and I want to change its default drop down selector to another color. First I tried: android:dropDownSelector="#FF400000", but it caused no selector to appear at all! Next I put the color in a drawable resource:
<shape xmlns:android="http://schemas.android.com/apk/res/android">
<solid android:color="#android:color/holo_blue_dark"/>
</shape>
And linked it: android:dropDownSelector="#drawable/drop_down_selector", but that did the same effect (no selector). Next I found a similar issue someone opened, just for spinner: http://code.google.com/p/android/issues/detail?id=24922, so I tried defining a style as was explained in the solution there:
<style name="AutoCompleteDropDown" parent="#android:style/Theme.Holo.Light">
<item name="android:dropDownListViewStyle">#style/AutoCompleteSelector</item>
</style>
<style name="AutoCompleteSelector" parent="#android:style/Widget.Holo.Light.ListView">
<item name="android:listSelector">#FF400000</item>
</style>
And linked it: style="#style/AutoCompleteDropDown", but it did nothing (however, the default selector got back since I removed the dropDownSelector attribute).
So what am I missing here? What am I doing wrong?
UPDATE: Ok, so as was suggested, I also tried a selector:
<selector xmlns:android="http://schemas.android.com/apk/res/android">
<item android:state_selected="true" android:state_pressed="true"
android:state_focused="true" android:state_activated="true"
android:drawable="#android:color/holo_green_light"/>
</selector>
But it didn't work, I still get no selector (at least not one I can see).
Theme's and styles are different by intent. And use different attributes. Theme define style for different widgets. Style define the widgets itself. Theme's are applied to application or activities.
1) If you want it to be for just one widget.
You need to go to /platforms//res/values/values.xml, find out how styles is defined for your widget (AutoCompleteTextView). Pick up required attribute. Define the same selector like in system but with your modifications. And you can even find out the selector in /res/drawable
2) If you want to be it all over the application:
a)You need to go to /platforms//res/values/themes.xml
b) There you can find out which style are in the theme you chose for AutoCompleteTextViewb
<item name="autoCompleteTextViewStyle">
#android:style/Widget.AutoCompleteTextView
</item>
c) Then got to res/values/styles.xml
d) There you can find out the style for widget.
e) Then you need to extend theme. And override autoCompleteTextViewStyle attribute by your new created style like in 1 option.
Try remove background from your views, which generated by adapter. That has helped me.
Related
i am using AppCompat 22.1.1.
For some reasons, my app can change its theme on the fly, during the user navigation. (i.e. move to an another part of the app, like in the google play store app, when you're moved from the "my apps" part, to the "movie" part for example)
To avoid creating one drawable background per theme, i tried to create a background like this :
<shape xmlns:android="http://schemas.android.com/apk/res/android">
<solid android:color="?attr/colorPrimary" /></shape>
When changing the theme programmatically, i suppose the colorPrimary will change too, and a button inflated after that, will be tinted with the colour of the new theme.
But i have an inflate exception on pre-lollipop (but works on lollipop). The drawable cannot find the attribute attr/colorPrimary, why ?
Here is the simple theme.xml i'm using :
<style name="MyTheme" parent="Theme.AppCompat.Light.DarkActionBar">
<item name="colorPrimary">#color/my_blue</item>
<item name="colorPrimaryDark">#color/my_blue_dark</item>
<item name="colorAccent">#color/my_blue_light</item>
</style>
The colors are in values/colors.xml, just hexa colors.. And all resources are in the "values" dir, and NOT in values-r21 dir.
Create a color_primary.xml color resource in res/color/:
<selector xmlns:android="http://schemas.android.com/apk/res/android">
<item android:color="?attr/colorPrimary"/>
</selector>
Then reference this in your drawable:
<shape xmlns:android="http://schemas.android.com/apk/res/android">
<solid android:color="#color/color_primary" />
</shape>
From my experience, I don't know, but I'm pretty sure there's nothing you can do via XML. Lots of framework resources are provided twice, in the form some_drawable_dark.xml and some_drawable_light.xml; it looks like you can't reference theme values from drawable and color folders.
So you should either:
Create x static resources, where x is the number of themes you are putting in;
Operate at runtime, using setColorFilter() and such. Depending on the case, it can be hard.
I've overridden the default blue text selection handles in most of my app by adding these items to the app theme and adding the appropriate 9 patch drawables:
<item name="android:textSelectHandleLeft">#drawable/text_select_handle_left</item>
<item name="android:textSelectHandleRight">#drawable/text_select_handle_right</item>
<item name="android:textSelectHandle">#drawable/text_select_handle_middle</item>
However, this doesn't apply to text selection in a WebView (the blue handles are still there). How can I override the corresponding items in the WebView style?
WebView seems to be referencing the system resources (e.g. android.R.attr.textSelectHandleLeft etc) directly for drawing the handles on its own:
http://src.chromium.org/svn/trunk/src/content/public/android/java/src/org/chromium/content/browser/input/HandleView.java
So, I'd say there's no way to re-style them.
Create your own theme resources and reference them in your Android Manifest.
create your own theme and put it inside res/values
<?xml version="1.0" encoding="utf-8"?>
<resources>
<style name="MyTheme">
<item name="android:textSelectHandleLeft">
#drawable/my_own_handle
</item>
<item name="android:textSelectHandleRight">
#drawable/my_own_handle
</item>
</style>
</resources>
refer your own in AndroidManifest.xml.
<application android:theme="#style/MyTheme" >
PS: Referred from crbug: Overriding Selection Controls in Web view
I want to create a style which uses the android textColorPrimary as a background color.
I tried the following which does not work, the result is my layout not beeing displayed at all.
<style name="horizontalLine">
<item name="android:layout_width">fill_parent</item>
<item name="android:layout_height">1dp</item>
<item name="android:background">?android:attr/textColorPrimary</item>
</style>
How do I use textColorPrimary as background color in a style?
This syntax seems to work for me, when trying to use attributes:
<TextView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:textColor="?android:textColorPrimary"
android:text="Hello"/>
(or)
<style name="MyStyle">
<item name="android:textColor">?android:textColorPrimary</item>
</style>
I can change the app theme from Holo to Holo.Light and the text color will change automatically to fit.
It doesn't work when I set it as a background of a View though - Android will crash complaining that the drawable referenced is a state list that does not specify drawables (it is a state list of colors).
Caused by: org.xmlpull.v1.XmlPullParserException: Binary XML file line #2: <item> tag requires a 'drawable' attribute or child tag defining a drawable
at android.graphics.drawable.StateListDrawable.inflate(StateListDrawable.java:178)
at android.graphics.drawable.Drawable.createFromXmlInner(Drawable.java:885)
at android.graphics.drawable.Drawable.createFromXml(Drawable.java:822)
at android.content.res.Resources.loadDrawable(Resources.java:1950)
... 39 more
I am using HoloEverywhere which lets me reference the resources directly, but you should get a similar problem in the native case. I don't think the primary, non-selected, non-activated (etc.) color used as a component in the state list xml is exposed through an attribute.
In any case, the text color used is dependent on the theme that you, the app developer, chooses. If you choose to use the Holo (dark) theme then your text will be a light color, and the user won't be able to affect this. You don't need to make the your line color dynamic for your app.
To apply the ?android:attr/textColorPrimary attribute as the background of a view, you have two options.
First Option
The first option is to define a shape drawable which gets its color from the ?android:attr/textColorPrimary attribute, as follows...
<shape xmlns:android="http://schemas.android.com/apk/res/android" android:shape="rectangle">
<solid android:color="?android:attr/textColorPrimary" />
</shape>
... and, assuming you've named this drawable rectangle_shape_with_primary_text_color.xml and placed it in your application's res/drawable folder, you can set it as the background of your style as follows...
<item name="android:background">#drawable/rectangle_shape_with_primary_text_color</item>
... or set it as the background of your view directly, as follows...
android:background="#drawable/rectangle_shape_with_primary_text_color"
Second option
The second option is to set the backgroundTint property of your style or view.
You can set the backgroundTint property of your style as follows:
<style name="horizontalLine">
<item name="android:background">#android:color/white</item>
<item name="android:backgroundTint">?android:attr/textColorPrimary</item>
</style>
Or you can set the backgroundTint property of your view directly as follows:
<View
android:id="#+id/horizontalLine"
android:layout_width="match_parent"
android:layout_height="1dp"
android:background="#android:color/white"
android:backgroundTint="?android:attr/textColorPrimary" />
Note that the exact value of the background property with this approach is not important but it must be set and it cannot be set to #null or #android:color/transparent.
The error message I get for this is:
org.xmlpull.v1.XmlPullParserException: Binary XML file line #18: <item> tag requires a 'drawable' attribute or child tag defining a drawable
Doing a little digging, the specs say the background attribute should support either a colour, or reference to a drawable resource:
... Looking at the resource you're referencing, it is a StateListDrawable.
platforms/android-17/data/res/color/primary_text_dark.xml
<selector xmlns:android="http://schemas.android.com/apk/res/android">
<item android:state_enabled="false" android:color="#android:color/bright_foreground_dark_disabled"/>
<item android:state_window_focused="false" android:color="#android:color/bright_foreground_dark"/>
<item android:state_pressed="true" android:color="#android:color/bright_foreground_dark_inverse"/>
<item android:state_selected="true" android:color="#android:color/bright_foreground_dark_inverse"/>
<item android:state_activated="true" android:color="#android:color/bright_foreground_dark_inverse"/>
<item android:color="#android:color/bright_foreground_dark"/> <!-- not selected -->
</selector>
However, the docs for StateListDrawable also explicitly say the drawable attribute must be defined for item elements:
https://developer.android.com/guide/topics/resources/drawable-resource.html
<item>
Defines a drawable to use during certain states, as described by its attributes. Must be a child of a <selector> element.
attributes:
android:drawable
Drawable resource. Required. Reference to a drawable resource.
... which isn't the case for the case for primary_text_dark.xml. So, it's not working because the drawable you're referencing doesn't seem to conform to the spec.
I think the workaround is to reference the colour that's used in primary_text_dark for the default state: bright_foreground_dark. Seeing as that's not public, you need to go directly to the one it references, which is:
android:background="#android:color/background_light"
I take it that you want to use native android primary text color.
<item name="android:background">#android:color/primary_text_dark</item>
In my app I am using several preferences, including some of them related with dependencies using the following attribute: android:dependency="pref_key".
Basically, when the checkbox is not selected, all the other preferences below are disabled:
The problem happens when I setup back the following 3 lines in my custom theme:
<style name="AppThemeOrange" parent="#style/AppTheme">
<item name="android:textColorPrimary">#color/OrangeMain</item>
<item name="android:textColorSecondary">#color/OrangeDark</item>
<item name="android:textColorTertiary">#color/OrangeLight</item>
(...)
The colors defined on these 3 attributes also override the default font color of the disabled preferences:
The preferences are still well disabled, but the fonts displayed make believe the contrary...
I searched in the default Holo Light styles and theme, but I have no idea where this is defined and why the styles above override these ones.
Did anyone already meet the problem?
you should define a color state list and put it inside the /res/color folder
<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android" >
<item android:state_enabled="false" android:color="#FF00ff00"/>
<item android:color="#FFff0000"/>
</selector>
I would like to change the color when a item of the spinner drop down is clicked.
I searched all the way through themes.xml, styles.xml and attr.xml but yet I can find which attribute has to be set to achieve this.
In attr.xml there is
<attr name="spinnerDropDownItemStyle" format="reference" />
In themes.xml in default themse there is
<style name="Theme">
...
<item name="spinnerDropDownItemStyle">#android:style/Widget.DropDownItem.Spinner</item>
<item name="spinnerItemStyle">#android:style/Widget.TextView.SpinnerItem</item>
...
When I follow this in style.xml I cant find any entry where the background drawable (with selectors for pressed and focused) is assigned (I guess there must be somewhere a refference to a xml file with selectors inside, like for button).
In short: I cant find what has to be set how in order to change the click and focus appearance of spinner dropdown items.
The Background alone can be changed by
<style name="CustomSpinnerAppearance0" parent="android:style/Widget.Holo.Light.Spinner">
<item name="android:background">#drawable/spinner_default0</item>
<item name="android:dropDownSelector">#ffc0c0c0</item>
<item name="android:popupBackground">#ffc0c0c0</item>
</style>
But even when I set a selector or transition as popupBackground nothing changes in the click behaviour.
Any ideas?
Thanks.
Meanwhile I found the solution.
To close this question:
I still dont know, why it has no influence on the behaviour when I set the dropDownSelector.
But changing the attribute
<item name="android:listChoiceBackgroundIndicator"></item>
does the trick.