添加弹窗，弹窗通用背景

common/src/main/java/com/yunbao/common/dialog/PromotionElitePopupWindow.java

@@ -0,0 +1,27 @@
+package com.yunbao.common.dialog;
+
+import android.content.Context;
+
+import androidx.annotation.NonNull;
+
+import com.lxj.xpopup.core.CenterPopupView;
+import com.yunbao.common.R;
+
+/**
+ * 升級精英/尊享戰令
+ */
+public class PromotionElitePopupWindow extends CenterPopupView {
+    public PromotionElitePopupWindow(@NonNull Context context) {
+        super(context);
+    }
+    @Override
+    protected int getImplLayoutId() {
+        return R.layout.promotion_elite_popup;
+    }
+
+    // 执行初始化操作，比如：findView，设置点击，或者任何你弹窗内的业务逻辑
+    @Override
+    protected void onCreate() {
+        super.onCreate();
+    }
+}