如何在 Android Studio 中制作具有透明背景的图像资产？ （带有选项添加图像资产）

Question

I have image with transparent background.

When i add image to resource folder, my background changes to white. (with android studio add image asset option)

If i put image directly to resource file, image background stays transparent.

Answer 1

Try this:

ImageView myImage = (ImageView) findViewById(R.id.myImage);
myImage.setAlpha(127); //value: [0-255]. Where 0 is fully transparent and 255 is fully opaque

Answer 2

选择“操作栏和选项卡图标”而不是“启动器图标” ，您将获得所有图像所需的透明背景。

Answer 3

You can do it easily by doing the below, BTW the gray circle is original in the image itself.

It will create you these

Answer 4

Select the

Icon type --- > Lagacy only

and

shape -- > none

as follow

Answer 5

Here is what is to be done in order to set the app icons generated to have transparent background

Edit the ic_launcher_background.xml file generated and set it like below:

This will remove the default background generated to be transparent color only.

Remove all the path definitions and only have the following one

<path android:fillColor="#00000000"
    android:pathData="M0,0h108v108h-108z"/>