0
public class SearchActivity extends AppCompatActivity
{
/*UI*/
private EditText mSearchText;
private Button mSearchBtn;
private Toolbar mSearchToolbar;
private FragmentPagerAdapter mPagerAdapter;
private ViewPager mViewPager;
private String value;
private TextWatcher tw;
@Override
protected void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_search);
mSearchText = (EditText)findViewById(R.id.activity_search_search_text);
mSearchBtn = (Button)findViewById(R.id.activity_search_search_btn);
mSearchToolbar = (Toolbar)findViewById(R.id.activity_search_toolbar);
setSupportActionBar(mSearchToolbar);
getSupportActionBar().setDisplayHomeAsUpEnabled(true);
getSupportActionBar().setTitle(null);
mSearchBtn.setOnClickListener(new View.OnClickListener()
{
@Override
public void onClick(View v)
{
value = mSearchText.getText().toString();
Toast.makeText(SearchActivity.this, "value test 1: " + value, Toast.LENGTH_LONG).show();
searchText(value);
}
});
}
private void searchText(final String value)
{
Toast.makeText(SearchActivity.this, "value test 2: " + value, Toast.LENGTH_LONG).show();
mPagerAdapter = new FragmentPagerAdapter(getSupportFragmentManager())
{
private final Fragment[] mFragments = new Fragment[]
{
new FragmentSearch(value)
};
@Override
public Fragment getItem(int position)
{
return mFragments[position];
}
@Override
public int getCount()
{
return mFragments.length;
}
};
mViewPager = (ViewPager) findViewById(R.id.activity_search_view_pager);
mViewPager.setAdapter(mPagerAdapter);
}
}
이
public class FragmentSearch extends MainFragment
{
public String value;
public FragmentSearch(String value)
{
this.value = value;
}
@Override
public Query getQuery(DatabaseReference databaseReference)
{
Toast.makeText(getActivity().this, "value test 3: " + value, Toast.LENGTH_LONG).show();
Query postsQuery = databaseReference.child("Post").orderByChild("title").equalTo(value);
return postsQuery;
}
}
이 MainFragment.java
public abstract class MainFragment extends Fragment
{
private DatabaseReference mDatabase;
private FirebaseRecyclerAdapter<Post, PostViewHolder> mAdapter;
private RecyclerView mRecycler;
private LinearLayoutManager mManager;
public MainFragment()
{
}
@Override
public View onCreateView (LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState)
{
super.onCreateView(inflater, container, savedInstanceState);
View rootView = inflater.inflate(R.layout.fragment_all_posts, container, false);
mDatabase = FirebaseDatabase.getInstance().getReference();
mRecycler = (RecyclerView)rootView.findViewById(R.id.messages_list);
mRecycler.setHasFixedSize(true);
return rootView;
}
@Override
public void onActivityCreated(Bundle savedInstanceState)
{
super.onActivityCreated(savedInstanceState);
mManager = new LinearLayoutManager(getActivity());
mManager.setReverseLayout(true);
mManager.setStackFromEnd(true);
mRecycler.setLayoutManager(mManager);
Query postsQuery = getQuery(mDatabase);
mAdapter = new FirebaseRecyclerAdapter<Post, PostViewHolder>(Post.class, R.layout.item_post,
PostViewHolder.class, postsQuery)
{
@Override
protected void populateViewHolder(final PostViewHolder viewHolder, final Post model, final int position)
{
final DatabaseReference postRef = getRef(position);
final String postKey = postRef.getKey();
viewHolder.itemView.setOnClickListener(new View.OnClickListener()
{
@Override
public void onClick(View v)
{
// Intent intent = new Intent(getActivity(), PostDetailActivity.class);
// intent.putExtra(PostDetailActivity.EXTRA_POST_KEY, postKey);
// startActivity(intent);
}
});
if(model.stars.containsKey(getUid()))
{
viewHolder.starView.setImageResource(R.drawable.ic_toggle_star_24);
}
else
{
viewHolder.starView.setImageResource(R.drawable.ic_toggle_star_outline_24);
}
viewHolder.bindToPost(model, new View.OnClickListener()
{
@Override
public void onClick(View starView)
{
DatabaseReference globalPostRef = mDatabase.child("Post").child(postRef.getKey());
DatabaseReference userPostRef = mDatabase.child("UserPost").child(model.uid).child(postRef.getKey());
onStarClicked(globalPostRef);
onStarClicked(userPostRef);
}
});
}
};
mRecycler.setAdapter(mAdapter);
}
private void onStarClicked(DatabaseReference postRef) {
postRef.runTransaction(new Transaction.Handler() {
@Override
public Transaction.Result doTransaction(MutableData mutableData) {
Post p = mutableData.getValue(Post.class);
if (p == null) {
return Transaction.success(mutableData);
}
if (p.stars.containsKey(getUid())) {
// Unstar the post and remove self from stars
p.starCount = p.starCount - 1;
p.stars.remove(getUid());
} else {
// Star the post and add self to stars
p.starCount = p.starCount + 1;
p.stars.put(getUid(), true);
}
// Set value and report transaction success
mutableData.setValue(p);
return Transaction.success(mutableData);
}
@Override
public void onComplete(DatabaseError databaseError, boolean b,
DataSnapshot dataSnapshot) {
}
});
}
@Override
public void onDestroy()
{
super.onDestroy();
if (mAdapter != null)
{
mAdapter.cleanup();
}
}
public String getUid()
{
return FirebaseAuth.getInstance().getCurrentUser().getUid();
}
public abstract Query getQuery(DatabaseReference databaseReference);
}
인이 PostViewHolder.java입니다 FragmentSearch.java
입니다 SearchActivity.java 입니다이 0
@IgnoreExtraProperties
public class Post
{
public String uid;
public String author;
public String title;
public String body;
public int starCount = 0;
public String type;
public Map<String, Boolean> stars = new HashMap<>();
public Post()
{
}
public Post(String uid, String author, String title, String body, String type)
{
this.uid = uid;
this.author = author;
this.title = title;
this.body = body;
this.type = type;
}
@Exclude
public Map<String, Object> toMap()
{
HashMap<String, Object> result = new HashMap<>();
result.put("uid", uid);
result.put("author", author);
result.put("title", title);
result.put("body", body);
result.put("starCount", starCount);
result.put("stars", stars);
result.put("type", type);
return result;
}
}
가 읽어 주셔서 너무 감사 Post.java
입니다. 게시물의 제목을 검색하는 프로그램을 만들었습니다. EditText에 title을 입력하고 Search 버튼을 누르면 내 toast1 테스트, toast2 테스트 및 toast3 테스트가 정확하고 동일한 값을 제공하며 쿼리에서 원하는 것을 성공적으로 나열합니다. 하지만 문제는 이전 텍스트를 삭제 한 후 EditText에 다른 텍스트를 입력 한 다음 Enter 키를 누르면 toast3 test (FragmentSearch.java에서)가 동일하게 유지되고 값이 변경되지 않는다는 것입니다. 따라서 결과를 변경하지 않고 이전 결과 만 제공합니다. 누구든지 이걸 도와 줄 수 있니? 고맙습니다!
또한 MainFragment.java 파일 –
난 그냥 업로드 MainFragment.java를 추가하십시오. 고맙습니다. – Eric