android 银行卡ui

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical">

    <include layout="@layout/include_toolbar" />

    <FrameLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:background="#ffffff"
        android:orientation="vertical"
        android:padding="16dp">
        

        <!--绑定的银行卡-->
        <android.support.v7.widget.CardView
            android:layout_width="match_parent"
            android:layout_height="120dp"
            android:clickable="true"
            android:foreground="?android:attr/selectableItemBackground"
            app:cardCornerRadius="10dp"
            app:cardPreventCornerOverlap="false"
            app:cardUseCompatPadding="true">

            <LinearLayout
                android:layout_width="match_parent"
                android:layout_height="match_parent"
                android:orientation="vertical"
                android:padding="10dp">

                <ImageView
                    android:id="@+id/iv_bank_card"
                    android:layout_width="130dp"
                    android:layout_height="35dp"
                    android:padding="2dp" />

                <TextView
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:layout_weight="1" />

                <TextView
                    android:id="@+id/tv_card_num"
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:layout_gravity="right"
                    android:padding="3dp"
                    android:text="" />
            </LinearLayout>
        </android.support.v7.widget.CardView>

    </FrameLayout>
</LinearLayout>
           

/**
     * 将银行卡中间八个字符隐藏为*
     */
    public static String getHideBankCardNum(String bankCardNum) {
        try {
            if (bankCardNum == null) return "未绑定";

            int length = bankCardNum.length();

            if (length > 4) {
                String startNum = bankCardNum.substring(0, 4);
                String endNum = bankCardNum.substring(length - 4, length);
                bankCardNum = startNum + " **** **** " + endNum;
            }
        } catch (Exception e) {
            e.printStackTrace();
        }
        return bankCardNum;
    }