android RecyclerView BackgroundColor [英] android RecyclerView BackgroundColor

问题描述

当我使用RecyclerView在我的应用中显示列表数据时，RecyclerView的背景颜色始终为白色:

When I use RecyclerView to show list data in my app, the RecyclerView's backgroundcolor always been white:

我在xml文件和代码中设置了backgroundcolor，但是它不起作用:

I set the backgroundcolor in xml file and code, but it does not work:

//activity_main.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:fitsSystemWindows="true"
    android:orientation="vertical"
    android:background="@color/colorPrimary">
    <!--<include layout="@layout/content_main" />-->
    <FrameLayout
        android:id="@+id/fragment_container"
        android:layout_width="match_parent"
        android:layout_height="match_parent"></FrameLayout>
</LinearLayout>

//fragment_layout.xml
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:background="@color/colorAccent">

    <android.support.v7.widget.RecyclerView
        android:id="@+id/list_view"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:background="@color/colorAccent"
        android:padding="5dp" />
</RelativeLayout>

//item_layout.xml
<android.support.v7.widget.CardView xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:card_view="http://schemas.android.com/apk/res-auto"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:layout_margin="5dp"
    card_view:cardBackgroundColor="@color/yellow"
    card_view:cardCornerRadius="1dp">

    <RelativeLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:padding="5dp">

        <TextView
            android:id="@+id/name"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_centerHorizontal="true"
            android:layout_marginBottom="5dip"
            android:layout_marginTop="5dip"
            android:gravity="center"
            android:textColor="@color/text_white"
            android:textSize="@dimen/list_item_text_size" />

        <ImageView
            android:id="@+id/pic"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_below="@+id/name"
            android:scaleType="centerCrop" />
    </RelativeLayout>

</android.support.v7.widget.CardView>


    //gradle file
    compileSdkVersion 23
    buildToolsVersion "23.0.2"

    defaultConfig {
        applicationId "com.union.fmdouban"
        minSdkVersion 15
        targetSdkVersion 23
        versionCode 1
        versionName "1.0"
    }

推荐答案

我实现了以下代码，它显示了卡片视图和背景色

i have implemented the below code and this is showing the card view and background color

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

    <android.support.v7.widget.RecyclerView
        android:id="@+id/appointment_list"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:background="#FFFF00"
        android:scrollIndicators="none" />
</RelativeLayout>

//您的适配器的布局

  <android.support.v7.widget.CardView xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/card_view"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:layout_margin="10dp">

    <RelativeLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:background="#000"
        android:padding="5dp">

        <TextView
            android:id="@+id/name"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_centerHorizontal="true"
            android:layout_marginBottom="5dip"
            android:layout_marginTop="5dip"
            android:gravity="center"
            android:text="dfgjkdfh"
            android:textColor="#ffffff" />

        <ImageView
            android:id="@+id/pic"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_below="@+id/name"
            android:scaleType="centerCrop" />
    </RelativeLayout>

</android.support.v7.widget.CardView>

我从适配器的XML中删除了主要的相对布局.尝试并让我知道

I removed the main Relative layout from adapter's XML Try this and let me know

//我的Gradle看起来像这样

//My Gradle looks like this

apply plugin: 'com.android.application'

android {
    compileSdkVersion 23
    buildToolsVersion "23.0.2"

    defaultConfig {
        applicationId "betasoft.com.tryso"
        minSdkVersion 15
        targetSdkVersion 23
        versionCode 1
        versionName "1.0"
    }
    buildTypes {
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
        }
    }
}

dependencies {
    compile fileTree(dir: 'libs', include: ['*.jar'])
    compile 'com.android.support:appcompat-v7:23.1.1'
    compile 'com.android.support:cardview-v7:23.1.0'
    compile 'com.android.support:design:23.1.1' }

这篇关于android RecyclerView BackgroundColor的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！