Develop Reference

I want to put image over button

I want to put png image over button i tried android:background but the png takes all the button what i want exactly is to use the logo png over button like this
the info logo is my png and "about" comes from the button text

u can use this:
android:drawableTop="#drawable/SomeIcon"
so then you get this:
<Button
android:id="#+id/damage"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_gravity="center_horizontal"
android:text="about"
android:drawableTop="#android:drawable/ic_menu_info_details"/>
it works for me :)

You can use a FrameLayout. In a FrameLayout, the z-index is defined by the order in which the items are added, for example
<FrameLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="wrap_content">
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="#string/button_text" />
<ImageView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="#drawable/my_drawable"
android:scaleType="fitCenter"/>
</FrameLayout>
In this instance, the ImageView would be drawn on top of the Button, along the bottom center of the Button.

You can check this thread
Basically, you can use:
<ImageButton
android:id="#+id/ImageButton01"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="#drawable/album_icon"
android:background="#drawable/round_button" />
As the thread says.

Take a RelativeLayout, place ImageView inside it. Now set onClickListener on RelativeLayout.
By this way you can create more complex buttons.
<RelativeLayout android:id="#+id/your_btn_id"
android:layout_width="match_parent"
android:layout_height="wrap_content" >
<ImageView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerHorizontal="true" />
</RelativeLayout>

you can use
android:drawableTop
to put drawable at top of Button and use appropriate padding to make it position well.

<Buttton
android:layout_width="99dp"
android:layout_height="99dp"
android:background = "#drawable/bg" />
bg is your custom image.

Remove the white color around the image in Imageview

I have a image http://i.stack.imgur.com/mFJpO.jpg when I add in my project it appears like this http://i.stack.imgur.com/CcD2g.png but I want to remove the white color of the image and want to show the background.I need only the elephant in the image to be show and remove the white borders and make the layout background to be shown is there any way I can do it.
<RelativeLayout
android:id="#+id/Head"
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_margin="5dp"
android:layout_weight="70"
android:orientation="vertical"
android:background="#drawable/jungle">
<ImageView
android:id="#+id/imageView1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:layout_centerHorizontal="true"
android:layout_marginBottom="40dp"
android:adjustViewBounds="true"
android:scaleType="center"
android:src="#drawable/elephant" />
</RelativeLayout>

Use Photoshop instead.
Open it on Photoshop.
Remove / Delete the White Layer.
Last, Save it as PNG Format.
:)

This you can not do by android. You have to use some different tools
like Photoshop or Coral etc to create transparent image (may be .png)
file.

how change button Icons in android?

i wish to adjust icons in my application that i'm about to devolp.
this is the link of the tutorial that i'm folowing .
"https://www.youtube.com/watch?v=lkadcYQ6SuY"
this is the example given and created in the tutorial .
now i don't have the reputation yet to post pictures to show you what i want BUT
simple i want arrows for back and forward (custom created) instead of textbuttons
anyone who can help me ... ?

You can use ImageButton, put your icon into drawable folder(if it doesnt exist, create it), and set it to your imageButton
<ImageButton
android:id="#+id/imageButton1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="#drawable/yourImgName" />

You can create a simple Button and set its Background for picture.
<Button
android:id="#+id/button"
android:background="#drawable/help"
android:contentDescription="#string/help"
android:gravity="bottom"
android:onClick="showHelp" />
Or you can create ImageButton :
<ImageButton
android:id="#+id/sync"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="right|center_vertical"
android:contentDescription="#string/sync"
android:background="#android:color/transparent"
android:src="#drawable/sync" />

try the below code
<ImageButton
android:id="#+id/imageButton1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="#drawable/your_image_name"/>

Android Button Customization

May i ask how to put icon on my button like the image below?
And also where can i have resources or sample resources of buttons like this?

You'll need to set the drawable to the left of your Button. Either via xml or programmatically.

Either create a button and set a compound drawable or create an ImageButton.

<TextView android:id="#+id/login_with_facebook"
android:layout_width="100dp"
android:height="48dp"
android:text="FACEBOOK"
android:gravity="center"
android:drawableLeft="#drawable/facebook_icon_48_x_48"
android:clickable="true"/>

<Button android:drawableLeft="#drawable/image"
android:text="facebook"/>
If u want space between image and text, then give drawablePadding Like:
<Button android:drawableLeft="#drawable/image"
android:text="facebook"
android:drawablePadding="10dp"/>

using RelativeLayout it can be done easily. here I got snippet for you,
<RelativeLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerHorizontal="true">
<Button
android:id="#+id/fb_logo_button"
android:text=""
android:background="fb_logo"
android:layout_height="match_parent"
android:layout_width="match_parent"/>
<Button
android:layout_toRightOf="#id/fb_logo_button"
android:id="#+id/fb_text_button"
android:text="Facebook"
android:textAlignment="center"
android:background="#android:color/holo_blue_bright"
android:layout_height="match_parent"
android:layout_width="match_parent"/>
</RelativeLayout>
this will ensure that whatever your images are for respective DPIs, it will align this layout to center horizontally. Within this layout logo will be always to left of text as in picture.
This is applicable when your parent is also a RelativeLayout. If you got LinearLayout as parent then in above RelativeLayout tag change android:layout_centerHorizontal="true" to android:layout_gravity="center_horizontal"
I can't test it in eclipse as I'm out of home. Try this and let me know. Thanks.

Android ImageButton: image with tranparent background

i want to write an application where the user can change the color scheme. I have Imagebuttons and the images on the buttons are pngs and have transparent background. but when i place them on the buttons they are not transparent anymore. could anybody help me with some code?
thanks!
Anne

Are you ensuring that android:background="#null" is set? Otherwise you'll have the gray button background. For example:
<ImageButton
android:background="#null"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="#drawable/my_transparent_png"
/>

write your layout for ImageButton as:
<ImageButton
android:src="#drawable/your_image"
android:id="#+id/your_id"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:background="#android:color/transparent"/>
Hope this helps!