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
下面是一个简单的自定义分割线(垂直分割线/ 1dp高度/黑色)的代码:
假设你有支持库:
compile "com.android.support:recyclerview-v7:25.1.1"
java代码
DividerItemDecoration divider = new DividerItemDecoration(recyclerView.getContext(), DividerItemDecoration.VERTICAL);
divider.setDrawable(ContextCompat.getDrawable(getBaseContext(), R.drawable.my_custom_divider));
recyclerView.addItemDecoration(divider);
然后custom_divide .xml文件示例:
<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android" android:shape="rectangle">
<size android:height="1dp" />
<solid android:color="@android:color/black" />
</shape>
其他回答
下面是一个简单的自定义分割线(垂直分割线/ 1dp高度/黑色)的代码:
假设你有支持库:
compile "com.android.support:recyclerview-v7:25.1.1"
java代码
DividerItemDecoration divider = new DividerItemDecoration(recyclerView.getContext(), DividerItemDecoration.VERTICAL);
divider.setDrawable(ContextCompat.getDrawable(getBaseContext(), R.drawable.my_custom_divider));
recyclerView.addItemDecoration(divider);
然后custom_divide .xml文件示例:
<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android" android:shape="rectangle">
<size android:height="1dp" />
<solid android:color="@android:color/black" />
</shape>
我认为你是在使用Fragments来实现RecyclerView
在创建RecyclerView和LayoutManager对象后，只需添加这些行
DividerItemDecoration dividerItemDecoration = new DividerItemDecoration(recyclerView.getContext(),
DividerItemDecoration.VERTICAL);
recyclerView.addItemDecoration(dividerItemDecoration);
就是这样！
它支持水平和垂直方向。
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);
所以这可能不是正确的方式，但我只是添加了一个视图到RecyclerView的单项视图(因为我不认为有一个内置的函数)，像这样:
<View
android:layout_width="fill_parent"
android:layout_height="@dimen/activity_divider_line_margin"
android:layout_alignParentBottom="true"
android:background="@color/tasklist_menu_dividerline_grey" />
这意味着每一项都有一行在底部填充。我把它做成1dp高，背景#111111。这也给了它一种“3D”效果。
yqritc的RecyclerView-FlexibleDivider使它成为一个内衬。首先把这个添加到你的build.gradle:
compile 'com.yqritc:recyclerview-flexibledivider:1.4.0' // requires jcenter()
现在你可以在你设置recyclerView的适配器的地方配置和添加一个分配器:
recyclerView.setAdapter(myAdapter);
recyclerView.addItemDecoration(new HorizontalDividerItemDecoration.Builder(this).color(Color.RED).sizeResId(R.dimen.divider).marginResId(R.dimen.leftmargin, R.dimen.rightmargin).build());
