How can I make a button with this theme? Blue and glowing box:
This can be done by creating a 9-patch image based on that custom button image (and optionally for the selected / pushed button state graphics). The 9-patch format is basically a PNG file with special marker pixels that slice the button graphic into segments so it can dynamically grow and shrink according to the final size of the button view. The Android SDK comes with a tool for creating those 9-patch images.
When this is done you need to create a state list XML resource file in the drawable resource directory. That state list references those 9-patch images for each button state (normal, pressed, etc.). The SDK documentation explains it nicely here: http://developer.android.com/guide/topics/ui/controls/button.html#CustomBackground
Code excerpt from that page:
<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
<item android:drawable="#drawable/button_pressed"
android:state_pressed="true" />
<item android:drawable="#drawable/button_focused"
android:state_focused="true" />
<item android:drawable="#drawable/button_default" />
</selector>
In the end you can assign that XML drawable to your button as a background image resource like as follows:
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Some label text"
android:background="#drawable/my_button_state_list" />
Related
hi i have to realize this layout . it has this layout.
I could try to use the icons as imagebuttons but the active state of a button is somewhat like this one !
How should i proceed with this ?
You should use selector as follows:
Prepare 2 images for button states, and put it into res/drawable folder.
button_normal_green.png – Default image button.
button_pressed_yellow.png – Display when button is pressed.
Now, create a new XML file in “res/drawable/” folder, in whatever name you want, in this case, we just give a name as “new_button.xml“. This file defined which button state is belong to which image.
<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
<item android:drawable="#drawable/button_pressed_yellow" android:state_pressed="true" />
<item android:drawable="#drawable/button_normal_green" />
</selector>
3.set background to button
<ImageButton
android:id="#+id/imageButtonSelector"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:background="#drawable/new_button" />
Have a look at Complete Example
I have some problems to add the blue color over the button when the user press it. It works if there is no drawable in background for this button but in my case, i have to add a custom background and i want the blue color when the user clicks on the button.
Here is my code
<Button
android:id="#+id/create_profile"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="#+id/info_account"
android:layout_centerHorizontal="true"
android:background="#drawable/btn_create_profile" />
Blue color is not something that platform draws for you. Standard buttons have a selector drawable as their background, which involves a set of images for a view. So for button for example it is a standard button image, pressed button image (with blue overlay drawn above), disabled (half transparent), etc.
Button knows it's current state and displays appropriate image.
So what you want to do is to draw a pressed button yourself and create a selector drawable like this:
<selector xmlns:android="http://schemas.android.com/apk/res/android">
<item android:state_pressed="true" android:drawable="#drawable/your_pressed_button/>
<item android:drawable="#drawable/your_normal_button/>
</selector>
I believe it's worth reading about Drawable Resources. You can also find examples of button states generated here.
You should make custom drawable :
For this you have to simply create a xml file in your drawable folder and write :
<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android" >
<item android:state_pressed="false"
android:drawable="#drawable/ic_back" />
<item android:state_pressed="true"
android:drawable="#drawable/ic_back_pressed" />
<item android:state_focused="true"
android:drawable="#drawable/ic_back_pressed" />
</selector>
and now set this drawable in background of your button.
Here, in normal state background id ic_back
and pressed and focus state background is ic_back_pressed
For creating solid drawable shapes (for example, if you want solid color backround as drawable you can go here.. )
How do I style an image button so that it displays as a PNG icon but on click/touch, the PNG shape gets a soft glowing edge?
You probably want to look at 9-patch
Basically you create a transparent png with the glow effect baked into the image, and it'll scale the edges while keeping the corners intact and letting you place the content within a predefined area of the image.
To map your images to a button, you need a selector, which is a xml file and goes into your projects drawables. A sample grabbed from another answer looks like this
<?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/red_button_pressed" />
<item android:state_focused="true" android:drawable="#drawable/red_button_focus" />
<item android:drawable="#drawable/red_button_rest" />
</selector>
I have two images(Light Red and Dark Red) for the button and i want to give Flashing Effect to that button that initially it glows from light-red to Dark-red and then when it pressed, its state will be changed to dark red. i try to sort out the Solution for this but every-where i see Fade-in and Fade-out solution using one image, but i want to use both images.
Please let me know if any function exists there for giving Flashing Effect between two images or i will have to make it manually.
For this I think you have to use customized xml drawable for your button,
And for different state of button you can use different images, to apply style
Try this,
example:
XML file saved at res/drawable/button.xml:
<?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/button_pressed" /> <!-- pressed -->
<item android:state_focused="true"
android:drawable="#drawable/button_focused" /> <!-- focused -->
<item android:state_hovered="true"
android:drawable="#drawable/button_focused" /> <!-- hovered -->
<item android:drawable="#drawable/button_normal" /> <!-- default -->
</selector>
This layout XML applies the state list drawable to a Button:
<Button android:layout_height="wrap_content"
android:layout_width="wrap_content"
android:background="#drawable/button" />
For more info look at Android - Drawable Style.
And nice example Adding Gradient Effects to Android Button.
SO post how to set image button backgroundimage for different state?.
You will need to work with associating Animations to Buttons.
Here are some links to tutorials :
link
video tutorial
Why is this button changing color to orange when clicked:
<Button android:background="#android:drawable/btn_plus" ...>
but this one is not?
<Button android:background="#drawable/ic_btn_round_plus" ...>
Edit:
Found another type of button (text and image) that changes color to orange when clicked
without having to create a selector:
<Button android:text="List" android:drawableTop="#drawable/list" ...>
because the first one is from android framework and has a selector associated to it, and the other one is a custom from your code, and you obviously didn't put a selector on it.
This is nicely explained here.
In short you need to put a selector drawable in the background of your button, instead of just one drawable :
<selector xmlns:android="http://schemas.android.com/apk/res/android">
<item android:state_selected="true" android:drawable="#drawable/ic_btn_round_plusorange" />
<item android:state_pressed="true" android:drawable="#drawable/ic_btn_round_plusorange" />
<item android:drawable="#drawable/ic_btn_round_plus" />
</selector>
and you create you copy of your drawable but with an orange color added to it for instance.
Android system will switch the drawable when the button is clicked or selected.