我正在使用交错网格布局从数据库向回收者 View 显示数据。我遇到了一个问题，在从数据库中删除项目以及从适配器中删除位置后，我遇到了一些项目渲染问题。就像分散的所有在这个地方。 这是我的代码
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_note_favorite);
ButterKnife.bind(this);
toolbar = (Toolbar) findViewById(R.id.fav_note_toolbar);
setSupportActionBar(toolbar);
noteAdapter = new NoteAdapter(noteModelList, NoteFavoriteActivity.this);
layoutManager = new StaggeredGridLayoutManager(2, StaggeredGridLayoutManager.VERTICAL);
recyclerView.setLayoutManager(layoutManager);
recyclerView.setItemAnimator(new DefaultItemAnimator());
recyclerView.setAdapter(noteAdapter);
touchListenerRecycler();
loadDataAll();
}
private void loadAll() {
noteModelList.clear();
DBManagerFav dbManagerFav = DBManagerFav.getInstance(NoteFavoriteActivity.this);
dbManagerFav.openDataBase();
noteModelList = dbManagerFav.getAllNoteList();
Log.i(TAG, " size : " + noteModelList.size());
noteAdapter = new NoteAdapter(noteModelList, NoteFavoriteActivity.this);
recyclerView.setAdapter(noteAdapter);
noteAdapter.notifyDataSetChanged();
dbManagerFav.closeDataBase();
}
private void deleteOperation() {
DBManagerFav dbManagerFav = DBManagerFav.getInstance(NoteFavoriteActivity.this);
dbManagerFav.openDataBase();
NoteModel noteModel = new NoteModel();
noteModel.setId(noteModelList.get(adapterClickedPosition).getId());
int status = dbManagerFav.deleteNote(noteModelList.get(adapterClickedPosition).getId());
if (status > 0) {
noteAdapter.removeAt(adapterClickedPosition);
}
dbManagerFav.closeDataBase();
loadDataAll();
}
//this belongs to adapter
public void removeAt(int position) {
Log.d(TAG, " removing at position : " + position);
noteModelList.remove(position);
notifyItemRemoved(position);
notifyItemRangeChanged(position, noteModelList.size());
notifyDataSetChanged();
}
附上前后两张截图 在删除项目之前
删除项目后
你能指出我还需要什么吗？
最佳答案
你可以把里面的loadDataAll(){
layoutManager = new StaggeredGridLayoutManager(2, StaggeredGridLayoutManager.VERTICAL);
recyclerView.setLayoutManager(layoutManager);
//........ } 瞧……
关于android - 删除项目后 StaggeredGridLayout 管理器，项目分散，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/46376702/