Adapter布局中外层View设置
android:layout_width="match_parent"
android:gravity="center_horizontal"
MVVM中
Activity 布局
<androidx.recyclerview.widget.RecyclerView
...
app:layoutManager="androidx.recyclerview.widget.StaggeredGridLayoutManager"
app:spanCount="3"/>
Activity:
RecyclerView.addItemDecoration(SpaceItemDecoration(this,ScreenUtil.dip2px(8.0f)))
SpaceItemDecoration.java
public class SpaceItemDecoration extends RecyclerView.ItemDecoration {
private int spacing =0;
private Context context;
public SpaceItemDecoration(Context context) {
this.context = context;
spacing = context.getResources().getDimensionPixelSize(R.dimen.ktv_item_channel_spacing);
}
public SpaceItemDecoration(Context context,int spacing) {
this.context = context;
this.spacing = spacing;
}
@Override
public void getItemOffsets(@NonNull Rect outRect,@NonNull View view,
@NonNull RecyclerView parent,@NonNull RecyclerView.State state) {
super.getItemOffsets(outRect, view, parent, state);
outRect.set(spacing,spacing,spacing,spacing);
}
}
