androidtransparentimagebuttonsurfaceview

Reputation: 16780

How to have a transparent ImageButton: Android

<ImageButton android:id="@+id/previous"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="@drawable/media_skip_backward"
android:background="@drawable/transparent"></ImageButton>

This is what I tried to get a transparent ImageButton so as to place those buttons on a SurfaceView. But Eclipse, gives me an error in the project as soon as I include the transparent line in xml.

Please help.

Upvotes: 551

Answers (23)

Tejas Vijay Tidake

Reputation: 21

you can either use: android:background="#00000000" or android:backgroundTint="#00000000"

Upvotes: 2

Mahbubur Rahman Khan

Reputation: 415

Dont forget to add padding, it helps to show button effect. Add padding to adjust with this background.

android:background="?android:selectableItemBackground"
android:padding="5dp"

Upvotes: 0

Fakhriddin Abdullaev

Reputation: 4900

If you want to do it in a .xml use the below code:

android:background="@null"

And, here is an example of doing it programmatically

yourButton.setBackgroundResource(0);

Upvotes: 0

Lai Lee

Reputation: 1312

It works and also keeps visual feedback for button clicked,

android:backgroundTintMode="screen"

Upvotes: 1

Love

Reputation: 21

You can use the following code works just fine by setting the background to transparent:

<ImageButton 
android:id="@+id/previous"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="@drawable/media_skip_backward"
android:background="transparent"></ImageButton>

Upvotes: 2

nhcodes

Reputation: 1944

Don't use null or transparent if you need a click animation. Better:

//Rectangular click animation
android:background="?attr/selectableItemBackground"

//Rounded click animation
android:background="?attr/selectableItemBackgroundBorderless"

Upvotes: 12

Arsam

Reputation: 376

I was already adding something to the background so , This thing worked for me:

   android:backgroundTint="@android:color/transparent"

(Android Studio 3.4.1)

EDIT: only works on android api level 21 and above. for compatibility, use this instead

   android:background="@android:color/transparent"

Upvotes: 2

Nikolay Podolnyy

Reputation: 1091

It's android:background="@android:color/transparent"

<ImageButton
    android:id="@+id/imageButton"
    android:src="@android:drawable/ic_menu_delete"
    android:background="@android:color/transparent"
/>

Upvotes: 1

Daniel Gomez Rico

Reputation: 15936

Use ImageView... it have transparent background by default...

Upvotes: 2

abir-cse

Reputation: 546

Use "@null" . It worked for me.

<ImageButton
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    app:srcCompat="@drawable/bkash"
    android:id="@+id/bid1"
    android:layout_alignParentTop="true"
    android:layout_alignParentLeft="true"
    android:layout_alignParentStart="true"
    android:background="@null" />

Upvotes: 1

Murtuza Ali Khan Mohammed

Reputation: 489

Set the background of the ImageButton as @null in XML

<ImageButton android:id="@+id/previous"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="@drawable/media_skip_backward"
android:background="@null"></ImageButton>

Upvotes: 1

Akshay Paliwal

Reputation: 3916

Use this:

<ImageButton
 android:id="@+id/back"
 android:layout_width="wrap_content"
 android:layout_height="wrap_content"
 android:background="@null"
 android:padding="10dp"
 android:src="@drawable/backbtn" />

Upvotes: 2

Sam Stern

Reputation: 25134

I believe the accepted answer should be: android:background="?attr/selectableItemBackground"

This is the same as @lory105's answer but it uses the support library for maximum compatibility (the android: equivalent is only available for API >= 11)

Upvotes: 11

Muhammed Refaat

Reputation: 9103

Programmatically it can be done by :

image_button.setAlpha(0f) // to make it full transparent
image_button.setAlpha(0.5f) // to make it half transparent
image_button.setAlpha(0.6f) // to make it (40%) transparent
image_button.setAlpha(1f) // to make it opaque

Upvotes: 0

Zar E Ahmer

Reputation: 34360

This is programatically set background color as transparent

 ImageButton btn=(ImageButton)findViewById(R.id.ImageButton01);
 btn.setBackgroundColor(Color.TRANSPARENT);

Upvotes: 0

Ajay Venugopal

Reputation: 1700

The best way is using the transparent color code

android:background="#00000000"

use the color code #00000000 for making any thing transparent

Upvotes: 5

lory105

Reputation: 6302

DON'T USE A TRANSAPENT OR NULL LAYOUT because then the button (or the generic view) will no more highlight at click!!!

I had the same problem and finally I found the correct attribute from Android API to solve the problem. It can apply to any view.

Use this in the button specifications:

android:background="?android:selectableItemBackground"

Upvotes: 373

jiasli

Reputation: 9128

Setting the background to "@null" will make the button have no effect when clicked. This will be a better choice.

style="?android:attr/borderlessButtonStyle"

Later I found that using

android:background="?android:attr/selectableItemBackground"

is also a good solution. And you can inherit this attribute in your own style.

Upvotes: 122

Kiyoshi

Reputation: 13

<ImageButton
    android:id="@+id/previous"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:background="@drawable/media_skip_backward">
</ImageButton>

I used a transparent png for the ImageButton, and the ImageButton worked.

Upvotes: -2

Adem

Reputation: 9429

in run time, you can use following code

btn.setBackgroundDrawable(null);

Upvotes: 14

Geykel

Reputation: 1908

You can also use a transparent color:

android:background="@android:color/transparent"

Upvotes: 145

Nishant Shah

Reputation: 3442

Remove this line :

android:background="@drawable/transparent">

And in your activity class set

ImageButton btn = (ImageButton)findViewById(R.id.previous);
btn.setAlpha(100);

You can set alpha level 0 to 255

o means transparent and 255 means opaque.

Upvotes: 8

Quintin Robinson

Reputation: 82325

Try using null for the background ...

android:background="@null"

Upvotes: 1072

How to have a transparent ImageButton: Android

Answers (23)

Related Questions