如何在Android RecyclerView中添加分隔线?

我正在开发一个android应用程序，我正在使用RecyclerView。我需要在RecyclerView中添加一个分隔符。我试着加上-

recyclerView.addItemDecoration(new
     DividerItemDecoration(getActivity(),
       DividerItemDecoration.VERTICAL_LIST));

下面是我的XML代码-

   <android.support.v7.widget.RecyclerView
    android:id="@+id/drawerList"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:layout_marginTop="15dp"
    />

当前回答

recyclerview.addItemDecoration(new DividerItemDecoration(this, LinearLayoutManager.HORIZONTAL));

对于垂直线使用LinearLayoutManager。垂直

2018-06-15 10:51:53

其他回答

芬兰湾的科特林版:

recyclerview.addItemDecoration(DividerItemDecoration(this, LinearLayoutManager.VERTICAL))

2019-02-20 17:24:32

在2016年10月的更新中，支持库v25.0.0现在有了基本水平和垂直分隔符的默认实现!

https://developer.android.com/reference/android/support/v7/widget/DividerItemDecoration.html

 recyclerView.addItemDecoration(new DividerItemDecoration(recyclerView.getContext(), DividerItemDecoration.VERTICAL));

2016-10-24 11:55:23

好了，如果不需要改变你的分割线颜色，只需对分割线装饰应用alpha。

GridLayoutManager透明的示例:

DividerItemDecoration horizontalDividerItemDecoration = new DividerItemDecoration(WishListActivity.this,
                DividerItemDecoration.HORIZONTAL);
        horizontalDividerItemDecoration.getDrawable().setAlpha(50);
        DividerItemDecoration verticalDividerItemDecoration = new DividerItemDecoration(WishListActivity.this,
                DividerItemDecoration.VERTICAL);
        verticalDividerItemDecoration.getDrawable().setAlpha(50);
        my_recycler.addItemDecoration(horizontalDividerItemDecoration);
        my_recycler.addItemDecoration(verticalDividerItemDecoration);

你仍然可以通过设置颜色来改变分割线的颜色过滤到它。

GridLayoutManager设置tint的例子:

DividerItemDecoration horizontalDividerItemDecoration = new DividerItemDecoration(WishListActivity.this,
                DividerItemDecoration.HORIZONTAL);
        horizontalDividerItemDecoration.getDrawable().setTint(getResources().getColor(R.color.colorAccent));
        DividerItemDecoration verticalDividerItemDecoration = new DividerItemDecoration(WishListActivity.this,
                DividerItemDecoration.VERTICAL);
        verticalDividerItemDecoration.getDrawable().setAlpha(50);
        my_recycler.addItemDecoration(horizontalDividerItemDecoration);
        my_recycler.addItemDecoration(verticalDividerItemDecoration);

此外，您还可以尝试设置颜色滤镜，

 horizontalDividerItemDecoration.getDrawable().setColorFilter(colorFilter);

2020-09-11 11:39:34

KOTLIN -如果你正在寻找自定义的颜色分割线之间的回收视图项目，那么这是一个解决方案，这是为我工作:

步骤1:给你的回收视图一个默认的项目装饰。recyclerView.addItemDecoration (androidx.recyclerview.widget。DividerItemDecoration(活动,androidx.recyclerview.widget.LinearLayoutManager.VERTICAL))

第二步: 添加一个xml绘图，指定你想要的颜色的大小宽度和高度。

<shape xmlns:android="http://schemas.android.com/apk/res/android">
    <size
        android:width="1dp"
        android:height="1dp" />
    <solid android:color="@color/your_color" />
</shape>

第三步:在你的应用主题中添加这一行。

<item name="android:listDivider">@drawable/your_drawable</item>

2021-08-27 06:13:23

只需在您的RecycleView适配器的项目底部添加x量的边缘。

onCreateViewHolder

LinearLayout.LayoutParams layoutParams = new LinearLayout.LayoutParams(
                LinearLayout.LayoutParams.MATCH_PARENT, LinearLayout.LayoutParams.WRAP_CONTENT);

layoutParams.setMargins(0, 0, 0, 5);
itemView.setLayoutParams(layoutParams);

2017-12-15 04:17:42

如何在Android RecyclerView中添加分隔线?

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