相对布局隐藏在Recycler视图后面

时间:2018-01-01 21:39:34

标签: android

我正在尝试将我的进度屏幕(@+id/progressScreen)置于我的回收站视图(@+id/cardList)之上,但由于某种原因,回收站视图始终位于顶部并隐藏它。我已经尝试了View.bringToFront(),但它没有工作

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    app:layout_behavior="@string/appbar_scrolling_view_behavior"
    android:background="@drawable/gradient"
    tools:showIn="@layout/activity_main"
    android:id="@+id/root_layout"
    tools:targetApi="LOLLIPOP">

    <RelativeLayout
        android:elevation="5dp"
        android:id="@+id/relativeToolbar"
        android:layout_width="match_parent"
        android:layout_height="200dp"
        android:background="?attr/colorPrimary" />

    <RelativeLayout
        android:elevation="5dp"
        android:layout_marginRight="12dp"
        android:layout_marginLeft="12dp"
        android:layout_alignParentTop="true"
        android:layout_width="match_parent"
        android:background="@color/white"
        android:layout_height="match_parent">

        <android.support.v7.widget.RecyclerView
            android:elevation="3dp"
            android:id="@+id/cardList"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:layout_gravity="center_horizontal|top" />

        <com.google.android.gms.common.SignInButton
            android:id="@+id/sign_in_button"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_centerInParent="true"
            android:visibility="gone"
             >

        </com.google.android.gms.common.SignInButton>

        <RelativeLayout
            android:id="@+id/progressScreen"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:background="#30FFFFFF"
            android:visibility="visible">

            <TextView
                android:id="@+id/progressText"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_above="@+id/progressbar"
                android:layout_centerHorizontal="true"
                android:layout_marginBottom="67dp"
                />

            <ProgressBar
                android:id="@+id/progressbar"
                style="?android:attr/progressBarStyleHorizontal"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_alignParentEnd="true"
                android:layout_alignParentStart="true"
                android:layout_centerVertical="true"/>
        </RelativeLayout>

    </RelativeLayout>



</RelativeLayout>

1 个答案:

答案 0 :(得分:2)

抱歉。我读错了。您应首先将Relative android:id="@+id/progressView"的RelativeLayout置于RecyclerView之上,然后添加 android:translationZ 参数以更正Z索引,因为您正在使用RV的3dp高程。因此,要在RecyclerView android:translationZ="4"

之上

这是固定代码:

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    app:layout_behavior="@string/appbar_scrolling_view_behavior"
    android:background="@drawable/gradient"
    tools:showIn="@layout/activity_main"
    android:id="@+id/root_layout"
    tools:targetApi="LOLLIPOP">

    <RelativeLayout
        android:elevation="5dp"
        android:id="@+id/relativeToolbar"
        android:layout_width="match_parent"
        android:layout_height="200dp"
        android:background="?attr/colorPrimary" />

    <RelativeLayout
        android:elevation="5dp"
        android:layout_marginRight="12dp"
        android:layout_marginLeft="12dp"
        android:layout_alignParentTop="true"
        android:layout_width="match_parent"
        android:background="@color/white"
        android:layout_height="match_parent">


        <RelativeLayout
            android:id="@+id/progressScreen"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"**
            android:translationZ="4dp"
            android:background="#30FFFFFF"
            android:visibility="visible">

            <TextView
                android:id="@+id/progressText"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_above="@+id/progressbar"
                android:layout_centerHorizontal="true"
                android:layout_marginBottom="67dp"
                />

            <ProgressBar
                android:id="@+id/progressbar"
                style="?android:attr/progressBarStyleHorizontal"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_alignParentEnd="true"
                android:layout_alignParentStart="true"
                android:layout_centerVertical="true"/>
        </RelativeLayout>

        <android.support.v7.widget.RecyclerView
            android:elevation="3dp"
            android:id="@+id/cardList"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:layout_gravity="center_horizontal|top" />

        <com.google.android.gms.common.SignInButton
            android:id="@+id/sign_in_button"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_centerInParent="true"
            android:visibility="gone"
            >

        </com.google.android.gms.common.SignInButton>


    </RelativeLayout>



</RelativeLayout>