这是一个使用renderscript库实现的模糊背景的对话框

allprojects {
	repositories {
		...
		maven { url 'https://jitpack.io' }
	}
}

defaultConfig {
    ...
    renderscriptTargetApi 27
    renderscriptSupportModeEnabled true
    ...
}

dependencies {
    ...
    implementation 'com.github.lany192:BlurDialog:+'
}

public class SampleDialogFragment extends BlurDialogFragment {
    ...
}

public class SampleBottomDialogFragment extends BlurBottomDialogFragment {
    ...
}

tvbarthel https://github.com/tvbarthel/BlurDialogFragment

Dmitry Saviuk https://github.com/Dimezis/BlurView