1.添加通用购物车红点

app/src/main/java/com/wd/workoffice/widget/BadgeCarProvider.java

+package com.wd.workoffice.widget;
+
+import android.content.Context;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.TextView;
+
+import com.wd.workoffice.R;
+
+import androidx.core.view.ActionProvider;
+import flexible.xd.android_base.utils.ScreenUtils;
+
+public class BadgeCarProvider extends ActionProvider {
+
+    private TextView tvBadge;
+
+    private OnClickListener onClickListener;
+
+    public BadgeCarProvider(Context context) {
+        super(context);
+    }
+
+    @Override
+    public View onCreateActionView() {
+        int size = getContext().getResources().getDimensionPixelSize(
+                R.dimen.flexible_actionbar_size);
+//
+        ViewGroup.LayoutParams layoutParams = new ViewGroup.LayoutParams(ScreenUtils.getScreenWidth() / 5, size);
+        View view = LayoutInflater.from(getContext())
+                .inflate(R.layout.view_red, null, false);
+
+        view.setLayoutParams(layoutParams);
+        tvBadge = view.findViewById(R.id.tv_badge);
+        view.setOnClickListener(onViewClickListener);
+        return view;
+    }
+
+    // 点击处理。
+    private View.OnClickListener onViewClickListener = new View.OnClickListener() {
+        @Override
+        public void onClick(View v) {
+            if (onClickListener != null)
+                onClickListener.onClick();
+        }
+    };
+
+    // 外部设置监听。
+    public void setOnClickListener(OnClickListener onClickListener) {
+        this.onClickListener = onClickListener;
+    }
+
+    public interface OnClickListener {
+        void onClick();
+    }
+
+
+    public void setBadgeVisibility(int visibility) {
+        tvBadge.setVisibility(visibility);
+    }
+}
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app/src/main/res/layout/view_red.xml

+<?xml version="1.0" encoding="utf-8"?>
+<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="70mm"
+    android:layout_height="match_parent"
+    android:background="?actionBarItemBackground"
+    android:orientation="vertical">
+
+    <TextView
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_centerInParent="true"
+        android:layout_gravity="center"
+        android:text="购物车"
+        android:textSize="15sp" />
+
+    <TextView
+        android:id="@+id/tv_badge"
+        android:layout_width="10mm"
+        android:layout_height="10mm"
+        android:layout_alignParentRight="true"
+        android:layout_margin="3mm"
+        android:background="@drawable/shape_red_circle"
+        android:visibility="gone" />
+
+</RelativeLayout>
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app/src/main/res/menu/menu_store_cart.xml

@@ -4,5 +4,6 @@
     <item
         android:id="@+id/cart"
         android:title="购物车"
+        app:actionProviderClass="com.wd.workoffice.widget.BadgeCarProvider"
         app:showAsAction="always" />
 </menu>
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