Removing the white background and having a full size app icon?

Question

I am finalising my app and what to set the app icon. However, I fail every time and tried so many app icon generators... I have my app icon which is 3000x3000 and has no background. Whenever I try to generate my app icons I select sharpe none. The result is always the same (you can find a screen below).

How can I have my app icon like the Google Maps icon or the clock icon? I want to have my bee centered and the background simply should be cut of depending on the icon shape..

This is an website I have used e.g.: https://romannurik.github.io/AndroidAssetStudio/icons-generic.html

My AndroidManifest.xml is also using the correct icon:

<application
  ..
  android:label="@string/app_name"
  android:icon="@mipmap/ic_launcher"

Answer 1

最近有人问这个问题，答案是它与 Android 8.0 的新自适应图标有关。您必须创建自己的自适应图标，请参阅https://developer.android.com/guide/practices/ui_guidelines/icon_design_adaptive指示。
顺便说一句，3000 x 3000 的图标很疯狂，而且没有任何理由。旧版图标应为 48dp x 48dp，因此最高分辨率应为 192px x 192px。