Android SectionedRecyclServiceAdapter实现getItemId
我使用SectionedRecycleServiceAdapter作为我的RecycleView的适配器 使用RecycleServiceAdapter,如果我想唯一标识每一行,我将重写此方法:Android SectionedRecyclServiceAdapter实现getItemId,android,android-recyclerview,sectionedrecyclerviewadapter,Android,Android Recyclerview,Sectionedrecyclerviewadapter,我使用SectionedRecycleServiceAdapter作为我的RecycleView的适配器 使用RecycleServiceAdapter,如果我想唯一标识每一行,我将重写此方法: @Override public long getItemId( int position ) { return this.dataList.get(position).getId(); } 但如何使用SectionedRecyclServiceAdapter实现这一点?我的小节代码如下,我添
@Override
public long getItemId( int position ) {
return this.dataList.get(position).getId();
}
但如何使用SectionedRecyclServiceAdapter实现这一点?我的小节代码如下,我添加了getId方法:
public class Section1 extends Section {
.....
public long getItemId(int position) {
if (position == 0) {
return 0;
}
return this.openPosList.get(position - 1).getId();
}
}
我想我应该扩展SectionedRecyclServiceAdapter并覆盖getItemId。但我在这里无法将位置转换为节的行位置
public class PositionRecylerViewAdapter extends SectionedRecyclerViewAdapter {
......
@Override
public long getItemId(int position) {
// ????
// transform position here into Section's item position, considering multiple Sections with Header & Footer
// ????
}
}
以前有没有人实现过类似的代码,有没有示例代码?谢谢 我在我的职位上找到并实现了这一点 在第1节课中:
发布了我自己的答案&希望下次有人发现它有用,谢谢 你想调用节的getID方法吗?@aborocz是的,最终我将调用节的getID
public class PositionRecyclerViewAdapter extends SectionedRecyclerViewAdapter {
public PositionRecyclerViewAdapter() {
super();
......
this.setHasStableIds(true);
}
.......
@Override
public long getItemId (int index) {
int viewType = this.getSectionItemViewType(index);
Section1 section1 = (Section1) this.getSection(POSITION_SECTION);
if (viewType == SectionedRecyclerViewAdapter.VIEW_TYPE_HEADER) {
return section1.getHeaderId();
} else if (viewType == SectionedRecyclerViewAdapter.VIEW_TYPE_ITEM_LOADED) {
int sectionItemIndex = this.getPositionInSection(index);
return section1.getItemId(sectionItemIndex);
}
return -1;
}
}
public class Section1 extends Section {
.....
public long getHeaderId() {
return headerId;
}
public long getItemId(int index) {
return this.openPosList.get(index).getId();
}
}