Android dialog 背景全透明

public class BuyerInfoDialog extends Dialog implements View.OnClickListener {
  
    public BuyerInfoDialog(@NonNull Context context) {
        this(context, 0);
    }

    public BuyerInfoDialog(@NonNull Context context, int themeResId) {
        super(context, themeResId);

    }

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.layout_buyer_info);
        initView();
        Window window = this.getWindow();
        if (window != null) {
            //去除系统自带的margin
            window.setBackgroundDrawable(new ColorDrawable(Color.TRANSPARENT));
            //设置dialog在界面中的属性
            window.setLayout(WindowManager.LayoutParams.MATCH_PARENT, WindowManager.LayoutParams.MATCH_PARENT);
            //背景全透明
            window.setDimAmount(0f);
        }

    }
}

private BuyerInfoDialog buyerInfoDialog;
if (buyerInfoDialog == null) {
            buyerInfoDialog = new BuyerInfoDialog(getContext(), R.style.Dialog_style);
        }

<!--弹出框的样式-->
    <style name="Dialog_style" parent="android:Theme.Dialog">
        <item name="android:windowFrame">@null</item>
        <!-- 边框 -->
        <item name="android:windowIsFloating">true</item>
        <!-- 是否浮现在activity之上 -->
        <item name="android:windowIsTranslucent">false</item>
        <!-- 半透明 -->
        <item name="android:windowNoTitle">true</item>
        <!-- 无标题 -->
        <item name="android:windowBackground">@android:color/transparent</item>
        <!-- 背景透明 -->
        <item name="android:backgroundDimEnabled">true</item>
        <!-- 模糊 -->
    </style>