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でのフィルタリング私はフィルタリングする入力主演するには、検索アイコンをクリックすると、だから、私は、nullポインタ例外を取得する今、このhttp://www.tutorialsbuzz.com/2015/11/Android-Filter-RecyclerView-Using-SearchView-In-ToolBar.htmlアダプタNULLポインタツールバーsearchview
に示すと同じように私のリストをフィルタ処理しようとしているときon
adapter.setFilter（filteredModelList）;
活性
public class CreateMyTeamActivity extends AppCompatActivity implements SearchView.OnQueryTextListener {
List<MessageData> messageDataList = new ArrayList<MessageData>();
private RecyclerView mRecyclerView;
private CustomRecyclerAdapterCreateTeam adapter;
ListView usersListView;
Context context;
private static final String TAG = "MyActivity";
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_create_my_team);
context = this;
mRecyclerView = (RecyclerView) findViewById(R.id.recycleView);
final LinearLayoutManager linearLayoutManager = new LinearLayoutManager(this);
mRecyclerView.setLayoutManager(linearLayoutManager);
MessageData msg1 = new MessageData();
msg1.setName("Anant Kharod");
msg1.setImage(R.drawable.msgone);
MessageData msg2 = new MessageData();
msg2.setName("Adil");
msg2.setImage(R.drawable.msgthree);
messageDataList.add(msg1);
messageDataList.add(msg2);
Log.i(TAG, "Message: " + msg1);
//arrMessageData.add(msg1);
CustomRecyclerAdapterCreateTeam adapter = new CustomRecyclerAdapterCreateTeam(this,messageDataList);
mRecyclerView.setAdapter(adapter);
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
MenuInflater inflater = getMenuInflater();
inflater.inflate(R.menu.menu_team, menu);
final MenuItem item = menu.findItem(R.id.search);
final SearchView searchView = (SearchView) MenuItemCompat.getActionView(item);
searchView.setOnQueryTextListener(this);
MenuItemCompat.setOnActionExpandListener(item,
new MenuItemCompat.OnActionExpandListener() {
@Override
public boolean onMenuItemActionCollapse(MenuItem item) {
// Do something when collapsed
///HERE IS THE PROBLEM
adapter.setFilter(messageDataList);
return true; // Return true to collapse action view
}
@Override
public boolean onMenuItemActionExpand(MenuItem item) {
// Do something when expanded
return true; // Return true to expand action view
}
});
return super.onCreateOptionsMenu(menu);
}
@Override
public boolean onQueryTextSubmit(String query) {
return false;
}
@Override
public boolean onQueryTextChange(String newText) {
final List<MessageData> filteredModelList = filter(messageDataList, newText);
adapter.setFilter(filteredModelList);
return true;
}
private List<MessageData> filter(List<MessageData> models, String query) {
query = query.toLowerCase();
final List<MessageData> filteredModelList = new ArrayList<>();
for (MessageData model : models) {
final String text = model.getName().toLowerCase();
if (text.contains(query)) {
filteredModelList.add(model);
}
}
return filteredModelList;
}
アダプタ：
public class CustomRecyclerAdapterCreateTeam extends RecyclerView.Adapter<ListViewRowHolder>{
private List<MessageData> messageDataList;
private Context context;
public CustomRecyclerAdapterCreateTeam(Context context, List<MessageData> messageDataList){
this.messageDataList = messageDataList;
this.context = context;
}
@Override
public ListViewRowHolder onCreateViewHolder(final ViewGroup parent, int viewType) {
View v = LayoutInflater.from(parent.getContext()).inflate(R.layout.create_team_list_item, null);
ListViewRowHolder holder = new ListViewRowHolder(v);
return holder;
}
@Override
public void onBindViewHolder(ListViewRowHolder holder, int position) {
MessageData messageData = messageDataList.get(position);
holder.person.setText(messageData.getName());
holder.pic.setImageResource(messageData.getImage());
}
@Override
public int getItemCount() {
return messageDataList.size();
}
public void setFilter(List<MessageData> messageModels) {
messageDataList = new ArrayList<>();
messageDataList.addAll(messageModels);
notifyDataSetChanged();
}
}
ListviewRowholder
public class ListViewRowHolder extends RecyclerView.ViewHolder {
public ImageView pic;
public TextView person;
public ListViewRowHolder(View itemView) {
super(itemView);
this.pic = (ImageView) itemView.findViewById(R.id.teamImage);
this.person = (TextView) itemView.findViewById(R.id.teamName);
}
public void bind(MessageData messageModel) {
this.pic.setImageResource(messageModel.getImage());
this.person.setText(messageModel.getName());
}
}
モデル
public class MessageData {
String message = "";
boolean isRead = false;
int images;
String name = "";
String subject = "";
String type = "";
public String getMessage() {
return message;
}
public void setMessage(String message) {
this.message = message;
}
public boolean isRead() {
return isRead;
}
public void setRead(boolean isRead) {
this.isRead = isRead;
}
public void setImage (int images){
this.images = images;
}
public int getImage(){
return images;
}
public String getName(){
return name;
}
public void setName(String name){
this.name = name;
}
public String getSubject(){
return subject;
}
public void setSubject(String subject){
this.subject = subject;
}
public String getType(){
return type;
}
public void setType(String type){
this.type = type;
}
}