I have a list where I have defined my own list view items with a custom layout. This layout has a background with a custom drawable.
My custom layout for the ListView item:
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#drawable/item"
android:clickable="true"
android:focusable="true"
android:focusableInTouchMode="true" >
...
</RelativeLayout>
My custom drawable item.xml:
<layer-list xmlns:android="http://schemas.android.com/apk/res/android" >
<!-- background: shadow -->
<item>
<shape
android:dither="true"
android:shape="rectangle" >
<corners android:radius="2dp" />
<solid android:color="#color/itemShadowColor" />
</shape>
</item>
<!-- foreground: surface -->
<item android:bottom="2dp">
<shape
android:dither="true"
android:shape="rectangle" >
<corners android:radius="2dp" />
<solid android:color="#color/itemBackgroundColor" />
</shape>
</item>
</layer-list>
Now this item is not clickable anymore.
Can you explain me why, and what I have to do to have the same behavior (selector with the blue background) like a button click?
Define a selector with its pressed and default states in res/drawable folder(one of the state will be your #drawable/item). Set it as the bg of your list row layout.
See similar question and answer :Selector on background color of TextView
Edit:
Best way to understand and apply something like google did is, to look into SDK and do similar things to that. For instance look at the btn_default_holo_dark drawable. It is a selector with states and yes it is a xml.
This is a selector taken from sdk (sdk\platforms\android-18\data\res\drawable\btn_default_holo_dark.xml)
<selector xmlns:android="http://schemas.android.com/apk/res/android">
<item android:state_window_focused="false" android:state_enabled="true"
android:drawable="#drawable/btn_default_normal_holo_dark" />
<item android:state_window_focused="false" android:state_enabled="false"
android:drawable="#drawable/btn_default_disabled_holo_dark" />
<item android:state_pressed="true"
android:drawable="#drawable/btn_default_pressed_holo_dark" />
<item android:state_focused="true" android:state_enabled="true"
android:drawable="#drawable/btn_default_focused_holo_dark" />
<item android:state_enabled="true"
android:drawable="#drawable/btn_default_normal_holo_dark" />
<item android:state_focused="true"
android:drawable="#drawable/btn_default_disabled_focused_holo_dark" />
<item
android:drawable="#drawable/btn_default_disabled_holo_dark" />
</selector>
These are the images taken from sdk (sdk\platforms\android-18\data\res\drawable-xhdpi):
When you apply this drawable/selector (#drawable/btn_default_holo_dark) to any view, you are going to have its states. I hope this sample makes my answer more clear.
Related
I have this button XML, which has transparent background and when clicked, the color changes, so that it shows a "click effect".
Drawable XML:
<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
<!-- press-->
<item android:drawable="#android:color/transparent" android:state_pressed="false" />
<!-- focused-->
<item style="#style/AppTheme" android:drawable="#color/color_primary" android:state_pressed="true" />
<!-- normal-->
<item android:drawable="#android:color/transparent" />
</selector>
My question is, how to put border on this button? Or an XML example so you have the same result. Thank you!
create a drawable, similar to this, selected.xml
<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android"
android:shape="rectangle">
<solid android:color="#ff0000"/>
<stroke
android:width="1dp"
android:color="#00ff00" />
</shape>
then change this line
<item
style="#style/AppTheme"
android:drawable="#color/color_primary"
android:state_pressed="true" />
to
<item
style="#style/AppTheme"
android:drawable="#drawable/selected"
android:state_pressed="true" />
the solid is the background color and the border is the stroke, you can create drawables that are used in the diferent states of the selector
You can do something like this:
1. First create a drawable file like this:
<shape android:shape="rectangle">
<!--apply button background transparent, full opacity-->
<solid android:color="#00ffffff"/>
<!--make button border solid color, nontransparent-->
<stroke android:color="#stroke color" android:width="2dp"/>
<corners android:radius="2dp"/>
</shape>
then in your provided code replace these lines:
<!-- press-->
<item android:drawable="path to above drawable" android:state_pressed="false" />
<!-- focused-->
<item style="#style/AppTheme" android:drawable="#color/color_primary" android:state_pressed="true" />
<!-- normal-->
<item android:drawable="path to above drawable" />
as
<!-- press-->
<item android:drawable="path to above drawable" android:state_pressed="false" />
<!-- focused-->
<item style="#style/AppTheme" android:drawable="#color/color_primary" android:state_pressed="true" />
<!-- normal-->
<item android:drawable="path to above drawable" />
Newbie in Android.
I have the following defined in res/drawable/ for a button in a menu that's defined in style.xml
<style name="menu_icon">
<item name="android:layout_width">match_parent</item>
<item name="android:layout_height">#dimen/menu_item_height</item>
<item name="android:background">#drawable/menu_item_bg_sel</item>
</style>
Now, menu_item_bg_sel in drawable has two different color gradients for 2 states that I am interested in- pressed and selected.
<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
<item android:state_pressed="true">
<layer-list>
<item>
<shape>
<gradient android:angle="180"
android:endColor="#color/background_menu_gray_selected2"
android:centerColor="#color/background_menu_gray_selected1"
android:startColor="#color/background_menu_gray_selected" />
</shape>
</item>
</layer-list>
</item>
<item android:state_selected="true">
<layer-list>
<item>
<shape>
<gradient android:angle="180" android:endColor="#color/background_menu_home2"
android:centerColor="#color/background_menu_home1"
android:startColor="#color/background_menu_home" />
</shape>
</item>
</layer-list>
</item>
<item android:drawable="#color/transparent"/>
However, when I press the button (that transient state) the button still creates the gradient taking colors from the selected_state only.
What am I doing wrong? Any ideas?
state_selected is commonly used when navigating using d-pads or maybe a pen like what Samsung Notes so I suggest not to use state_selected since when you press automatically it will be selected or gain focus although selected and focus are kind or different. I suggest to use state_pressed, state_focused and state_hovered instead.
For more info click here
You can use this code. You can copy paste this code into one drawable file. You can assign different drawable files or define shapes in this file itself for the different states.I have assigned a drawable file for the focused state as an example.
simple_button_states.xml
<selector xmlns:android="http://schemas.android.com/apk/res/android">
<item
android:state_focused="true"
android:drawable="#drawable/rounded_edittext_focused"
/>
<!--pressed -->
<item
android:state_pressed="true" />
<!--selected -->
<item
android:state_selected="true" />
<!-- focused -->
<item
android:drawable="#drawable/rounded_edittext_unfocused"/>
</selector>
round_edittext_focused.xml
<shape xmlns:android="http://schemas.android.com/apk/res/android"
>
<solid android:color="#FFFFFF" />
<stroke
android:width="2dp"
android:color="#color/CornflowerBlue" />
<corners
android:topLeftRadius="4dp"
android:topRightRadius="4dp"
android:bottomLeftRadius="4dp"
android:bottomRightRadius="4dp"
/>
</shape>
Finally assign the background of the actual button as the drawable file that you have declared above.
<Button
android:layout_width="150dp"
android:layout_height="wrap_content"
android:background="#drawable/simple_button_states"
/>
Hope this helps
I know there are already questions like this but i cannot find the answer for my uestion. Please Help?
<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
<item android:drawable="#drawable/button"
android:state_pressed="true" />
<item android:drawable="#drawable/button"
android:state_focused="true" />
<item android:drawable="#drawable/button" />
</selector>
i already set the background but i dont know how to make the edges round.
Create your own custom button like this
<shape xmlns:android="http://schemas.android.com/apk/res/android"
android:shape="rectangle">
<corners android:radius="3dp" />
<stroke android:width="5px" android:color="#1a1a1a" />
</shape>
Also check this on Developers Site
I want to use a list selector for my gridview. I add it in xml via the android:listSelector attribute.
My selector looks like that:
<selector xmlns:android="http://schemas.android.com/apk/res/android" >
<item android:state_pressed="true" android:drawable="#drawable/selected_item_highlight" />
<item android:state_focused="true" android:drawable="#drawable/selected_item_highlight" />
<item android:drawable="#android:color/transparent" />
</selector>
where the selected_item_highlight looks like that:
<shape
xmlns:android="http://schemas.android.com/apk/res/android"
android:shape="rectangle">
<corners
android:radius="3dp" />
<solid
android:background="#color/ListHighlighting" />
</shape>
But the grid keeps blank. When I change the drawable attribute in the selector to drawable="#color/ListHighlighting" the whole grid - every item - get's highlighted in the color.
What's wrong?
I'm trying to assing a color selector to an extended class of LinearLayout, so, i think its like if we speak about linearLayout.
i followed the instructions on this post, the answer talking about shapes.
Now i have 3 xml on drawables folders:
normal.xml file
<shape xmlns:android="http://schemas.android.com/apk/res/android"
android:shape="rectangle" >
<solid android:color="#ffffffff" />
</shape>
pressed.xml file
<shape xmlns:android="http://schemas.android.com/apk/res/android"
android:shape="rectangle" >
<solid android:color="#00000000" />
</shape>
and finally, bg.xml file
<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
<item android:state_pressed="true" android:drawable="#drawable/pressed" />
<item android:state_focused="true" android:drawable="#drawable/pressed" />
<item android:state_selected="true" android:drawable="#drawable/pressed" />
<item android:drawable="#drawable/normal" />
</selector>
I am accessing this in the following way:
Drawable d = getResources().getDrawable(context.getResources().getIdentifier("mypackageuri.tProject:drawable/bg", null, null));
view.setBackgroundDrawable(d);
The "normal" state its fine, with the color set at "normal.xml", but no way with the other ones, I press my view and nothing happens, it's not changing color in any way...
I can't see what i'm doing wrong...
Thank you
Your view needs to be clickable in order to get the state pressed when you click on it.
Use :
view.setClickable(true);
or in the layout xml :
android:clickable="true"