当我在数据库中搜索用户时,它将填充RecyclerView,但是当我进行另一次搜索却找不到该用户时,我希望它也删除RecyclerView内容,但旧用户的内容仍保留在RecyclerView中直到我搜索现有用户,然后它将更改为新用户的内容。
@OnClick(R.id.btn_search_user)
public void onSearchBtnClicked(View view) {
Log.e(LOG_TAG, "Search button clicked");
if (!TextUtils.isEmpty(etSearchUser.getText())) {
userNameSearch = etSearchUser.getText().toString();
if (!isNetworkAvailable()) {
Toast.makeText(this, "No internet, searching offline", Toast.LENGTH_SHORT).show();
mOwner = Owner.getByUsername(userNameSearch);
if(mOwner != null) {
searchUserByUserName(userNameSearch);
} else {
// I want the RecyclerView to be empty at this point.
tvGitHubUser.setText("was not found offline");
}
} else {
loadRepository(userNameSearch);
Log.e(LOG_TAG, "Owner is empty, searching online");
}
}
}
initRecycleView()
mGithubRecyclerView = (RecyclerView) findViewById(R.id.github_repository_recyclerview);
RecyclerView.LayoutManager mGithubLayoutManager = new LinearLayoutManager(getApplicationContext());
mGithubRecyclerView.setLayoutManager(mGithubLayoutManager);
mGithubRecyclerView.setHasFixedSize(true);
最佳答案
只需致电recyclerView.setAdapter(null);
如果可以向我显示您的适配器代码,则可以提供更好的方法。