recyclerview 间隙
时间: 2023-10-19 11:05:16 浏览: 49
如果你想要在RecyclerView中添加间隙,可以通过设置ItemDecoration来实现。可以通过以下步骤来实现:
1. 创建一个类继承自RecyclerView.ItemDecoration。
2. 在类中重写getItemOffsets()方法,并设置需要的间隙大小。
3. 在RecyclerView中调用addItemDecoration()方法并传入上述类的实例。
以下是一个示例代码,用于在RecyclerView中添加10dp的间隙:
```
public class MyItemDecoration extends RecyclerView.ItemDecoration {
private final int mSpace;
public MyItemDecoration(int space) {
this.mSpace = space;
}
@Override
public void getItemOffsets(Rect outRect, View view, RecyclerView parent, RecyclerView.State state) {
outRect.left = mSpace;
outRect.right = mSpace;
outRect.bottom = mSpace;
// Add top margin only for the first item to avoid double space between items
if (parent.getChildAdapterPosition(view) == 0) {
outRect.top = mSpace;
} else {
outRect.top = 0;
}
}
}
```
然后在RecyclerView中调用addItemDecoration()方法并传入上述类的实例即可:
```
RecyclerView recyclerView = findViewById(R.id.my_recycler_view);
recyclerView.addItemDecoration(new MyItemDecoration(10));
```