Fatal编程技术网
  • android/
  • Android 带有RecyclerView的SearchView筛选器筛选结果错误

Android 带有RecyclerView的SearchView筛选器筛选结果错误

android

Android 带有RecyclerView的SearchView筛选器筛选结果错误,android,android-recyclerview,searchview,android-filterable,Android,Android Recyclerview,Searchview,Android Filterable,我有一个带有RecyclerView的SearchView，它打算搜索联系人列表。但搜索结果似乎是错误的。正在进行某些筛选，但不是正确的筛选。例如，如果我用字符“a”搜索，它将过滤掉一些随机的内容，而不是以a开头的联系人。代码片段如下 活动类 public class MembersActivity extends AppCompatActivity implements SearchView.OnQueryTextListener { @BindView(R.id.meetup_me

我有一个带有RecyclerView的SearchView，它打算搜索联系人列表。但搜索结果似乎是错误的。正在进行某些筛选，但不是正确的筛选。例如，如果我用字符“a”搜索，它将过滤掉一些随机的内容，而不是以a开头的联系人。代码片段如下

活动类

    public class MembersActivity extends AppCompatActivity implements SearchView.OnQueryTextListener {

@BindView(R.id.meetup_members_recycler_view)
RecyclerView mRecyclerView;

CustomContactAdapter contactAdapter;
List<Contact> contactList = new ArrayList();
private SearchView mSearchView;

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_meetup_members);
    ButterKnife.bind(this);
    mSearchView = (SearchView) findViewById(R.id.action_search);
    mRecyclerView.setLayoutManager(new LinearLayoutManager(this));

    getAllContacts();
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
    getMenuInflater().inflate(R.menu.menu_main, menu);

    final MenuItem searchItem = menu.findItem(R.id.action_search);
    final SearchView searchView = (SearchView) MenuItemCompat.getActionView(searchItem);
    searchView.setOnQueryTextListener(this);

    return true;
}

private void getAllContacts() {

    Contact contact;

    ContentResolver contentResolver = getContentResolver();
    Cursor cursor = contentResolver.query(ContactsContract.Contacts.CONTENT_URI, null, null, null, ContactsContract.CommonDataKinds.Phone.DISPLAY_NAME + " ASC");
    if (cursor.getCount() > 0) {
        while (cursor.moveToNext()) {

            int hasPhoneNumber = Integer.parseInt(cursor.getString(cursor.getColumnIndex(ContactsContract.Contacts.HAS_PHONE_NUMBER)));
            if (hasPhoneNumber > 0) {
                String id = cursor.getString(cursor.getColumnIndex(ContactsContract.Contacts._ID));
                String name = cursor.getString(cursor.getColumnIndex(ContactsContract.Contacts.DISPLAY_NAME));

                contact = new Contact();
                contact.setName(name);

                Cursor phoneCursor = contentResolver.query(
                        ContactsContract.CommonDataKinds.Phone.CONTENT_URI,
                        null,
                        ContactsContract.CommonDataKinds.Phone.CONTACT_ID + " = ?",
                        new String[]{id},
                        null);
                if (phoneCursor.moveToNext()) {
                    String phoneNumber = phoneCursor.getString(phoneCursor.getColumnIndex(ContactsContract.CommonDataKinds.Phone.NUMBER));
                    contact.setMobile(phoneNumber);
                }

                phoneCursor.close();
                contactList.add(contact);
            }
        }

        contactAdapter = new CustomContactAdapter(getApplicationContext(),contactList);
        mRecyclerView.setLayoutManager(new LinearLayoutManager(this));
        mRecyclerView.setAdapter(contactAdapter);
    }
}


@Override
public boolean onQueryTextSubmit(String query) {
    return false;
}

@Override
public boolean onQueryTextChange(String newText) {
    contactAdapter.getFilter().filter(newText);
    return true;
}
}

   public class CustomContactAdapter extends RecyclerView.Adapter<CustomContactAdapter.ContactViewHolder>
    implements CompoundButton.OnCheckedChangeListener,Filterable {

Context mContext;
LayoutInflater mInflater;
private List<Contact> contactList = new ArrayList<Contact>();
private List<Contact> filterContactList = new ArrayList<Contact>();
private ContactFilter contactFilter;

public CustomContactAdapter(Context context,List<Contact> contacts)
{
    mInflater = LayoutInflater.from(context);
    mContext = context;
    this.contactList = contacts;
    this.filterContactList = contacts;

}

public static class ContactViewHolder extends RecyclerView.ViewHolder
        implements View.OnClickListener {
    @BindView(R.id.member_name)
    TextView mContactName;
    @BindView(R.id.member_mobile)
    TextView mPhoneNumber;
    @BindView(R.id.member_image)
    ImageView mImage;

    public ContactViewHolder(View view) {
        super(view);
        ButterKnife.bind(this, view);
        view.setOnClickListener(this);
    }

    @Override
    public void onClick(View view){

    }
}

@Override
public CustomContactAdapter.ContactViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
    View itemView = LayoutInflater.from(parent.getContext())
            .inflate(R.layout.member_list_row, parent, false);

    return new CustomContactAdapter.ContactViewHolder(itemView);
}

@Override
public void onBindViewHolder(CustomContactAdapter.ContactViewHolder holder, int position) {

    Contact contact = contactList.get(position);
    holder.mContactName.setText(contact.getName());
    holder.mPhoneNumber.setText(contact.getMobile());

}

@Override
public int getItemCount() {
    return filterContactList.size();
}

@Override
public Filter getFilter() {
    if(contactFilter == null)
        contactFilter = new ContactFilter();
    return contactFilter;
}


private class ContactFilter extends Filter {

    @Override
    protected FilterResults performFiltering(CharSequence constraint) {
        FilterResults filterResults = new FilterResults();
        if (constraint!=null && constraint.length()>0) {
            ArrayList<Contact> tempList = new ArrayList<Contact>();

            for (Contact contact : contactList) {
                if (contact.getName().toLowerCase().contains(constraint.toString().toLowerCase())) {
                    tempList.add(contact);
                }
            }

            filterResults.count = tempList.size();
            filterResults.values = tempList;
            System.out.println("performFiltering:SearchFoundCount "+ tempList.size());
            System.out.println("performFiltering:ActualSize "+ contactList.size());

        } else {
            filterResults.count = contactList.size();
            filterResults.values = contactList;
        }

        return filterResults;
    }

    /**
     * Notify about filtered list to ui
     * @param constraint text
     * @param results filtered result
     */
    @SuppressWarnings("unchecked")
    @Override
    protected void publishResults(CharSequence constraint, FilterResults results) {
        filterContactList = (ArrayList<Contact>) results.values;
        notifyDataSetChanged();
    }
}
}

public class MembersActivity扩展AppCompativity实现SearchView.OnQueryTextListener{
@BindView（R.id.meetup\U成员\U回收者\U视图）
回收视图mRecyclerView；
CustomContactAdapter-contactAdapter；
List contactList=new ArrayList（）；
私有搜索视图；
@凌驾
创建时受保护的void（Bundle savedInstanceState）{
super.onCreate（savedInstanceState）；
setContentView（R.layout.activity\u meetup\u成员）；
把（这个）绑起来；
mSearchView=（SearchView）findViewById（R.id.action\u search）；
mRecyclerView.setLayoutManager（新的LinearLayoutManager（this））；
getAllContacts（）；
}
@凌驾
公共布尔onCreateOptions菜单（菜单）{
getMenuInflater（）.充气（右菜单菜单菜单主菜单）；
final MenuItem searchItem=menu.findItem（R.id.action\u search）；
最终SearchView SearchView=（SearchView）MenuItemCompat.getActionView（searchItem）；
setOnQueryTextListener（这个）；
返回true；
}
私有void getAllContacts（）{
接触；
ContentResolver ContentResolver=getContentResolver（）；
Cursor Cursor=contentResolver.query（ContactsContract.Contacts.CONTENT\u URI，null，null，null，ContactsContract.commondatatypes.Phone.DISPLAY\u NAME+“ASC”）；
if（cursor.getCount（）>0）{
while（cursor.moveToNext（））{
int hasPhoneNumber=Integer.parseInt（cursor.getString（cursor.getColumnIndex（ContactsContract.Contacts.HAS_PHONE_NUMBER））；
如果（hasPhoneNumber>0）{
String id=cursor.getString（cursor.getColumnIndex（ContactsContract.Contacts.\u id））；
字符串名称=cursor.getString（cursor.getColumnIndex（ContactsContract.Contacts.DISPLAY_name））；
触点=新触点（）；
contact.setName（name）；
Cursor phoneCursor=contentResolver.query(
ContactsContract.CommonDataTypes.Phone.CONTENT\u URI，
无效的
ContactsContract.CommonDataTypes.Phone.CONTACT_ID+“=？”，
新字符串[]{id}，
无效）；
if（phoneCursor.moveToNext（））{
String phoneNumber=phoneCursor.getString（phoneCursor.getColumnIndex（ContactsContract.CommonDataTypes.Phone.NUMBER））；
联系人：setMobile（电话号码）；
}
phoneCursor.close（）；
联系人列表。添加（联系人）；
}
}
contactAdapter=新的CustomContactAdapter（getApplicationContext（），contactList）；
mRecyclerView.setLayoutManager（新的LinearLayoutManager（this））；
mRecyclerView.setAdapter（contactAdapter）；
}
}
@凌驾
公共布尔值onQueryTextSubmit（字符串查询）{
返回false；
}
@凌驾
公共布尔onQueryTextChange（字符串newText）{
contactAdapter.getFilter（）.filter（新文本）；
返回true；
}
}
适配器类

    public class MembersActivity extends AppCompatActivity implements SearchView.OnQueryTextListener {

@BindView(R.id.meetup_members_recycler_view)
RecyclerView mRecyclerView;

CustomContactAdapter contactAdapter;
List<Contact> contactList = new ArrayList();
private SearchView mSearchView;

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_meetup_members);
    ButterKnife.bind(this);
    mSearchView = (SearchView) findViewById(R.id.action_search);
    mRecyclerView.setLayoutManager(new LinearLayoutManager(this));

    getAllContacts();
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
    getMenuInflater().inflate(R.menu.menu_main, menu);

    final MenuItem searchItem = menu.findItem(R.id.action_search);
    final SearchView searchView = (SearchView) MenuItemCompat.getActionView(searchItem);
    searchView.setOnQueryTextListener(this);

    return true;
}

private void getAllContacts() {

    Contact contact;

    ContentResolver contentResolver = getContentResolver();
    Cursor cursor = contentResolver.query(ContactsContract.Contacts.CONTENT_URI, null, null, null, ContactsContract.CommonDataKinds.Phone.DISPLAY_NAME + " ASC");
    if (cursor.getCount() > 0) {
        while (cursor.moveToNext()) {

            int hasPhoneNumber = Integer.parseInt(cursor.getString(cursor.getColumnIndex(ContactsContract.Contacts.HAS_PHONE_NUMBER)));
            if (hasPhoneNumber > 0) {
                String id = cursor.getString(cursor.getColumnIndex(ContactsContract.Contacts._ID));
                String name = cursor.getString(cursor.getColumnIndex(ContactsContract.Contacts.DISPLAY_NAME));

                contact = new Contact();
                contact.setName(name);

                Cursor phoneCursor = contentResolver.query(
                        ContactsContract.CommonDataKinds.Phone.CONTENT_URI,
                        null,
                        ContactsContract.CommonDataKinds.Phone.CONTACT_ID + " = ?",
                        new String[]{id},
                        null);
                if (phoneCursor.moveToNext()) {
                    String phoneNumber = phoneCursor.getString(phoneCursor.getColumnIndex(ContactsContract.CommonDataKinds.Phone.NUMBER));
                    contact.setMobile(phoneNumber);
                }

                phoneCursor.close();
                contactList.add(contact);
            }
        }

        contactAdapter = new CustomContactAdapter(getApplicationContext(),contactList);
        mRecyclerView.setLayoutManager(new LinearLayoutManager(this));
        mRecyclerView.setAdapter(contactAdapter);
    }
}


@Override
public boolean onQueryTextSubmit(String query) {
    return false;
}

@Override
public boolean onQueryTextChange(String newText) {
    contactAdapter.getFilter().filter(newText);
    return true;
}
}

   public class CustomContactAdapter extends RecyclerView.Adapter<CustomContactAdapter.ContactViewHolder>
    implements CompoundButton.OnCheckedChangeListener,Filterable {

Context mContext;
LayoutInflater mInflater;
private List<Contact> contactList = new ArrayList<Contact>();
private List<Contact> filterContactList = new ArrayList<Contact>();
private ContactFilter contactFilter;

public CustomContactAdapter(Context context,List<Contact> contacts)
{
    mInflater = LayoutInflater.from(context);
    mContext = context;
    this.contactList = contacts;
    this.filterContactList = contacts;

}

public static class ContactViewHolder extends RecyclerView.ViewHolder
        implements View.OnClickListener {
    @BindView(R.id.member_name)
    TextView mContactName;
    @BindView(R.id.member_mobile)
    TextView mPhoneNumber;
    @BindView(R.id.member_image)
    ImageView mImage;

    public ContactViewHolder(View view) {
        super(view);
        ButterKnife.bind(this, view);
        view.setOnClickListener(this);
    }

    @Override
    public void onClick(View view){

    }
}

@Override
public CustomContactAdapter.ContactViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
    View itemView = LayoutInflater.from(parent.getContext())
            .inflate(R.layout.member_list_row, parent, false);

    return new CustomContactAdapter.ContactViewHolder(itemView);
}

@Override
public void onBindViewHolder(CustomContactAdapter.ContactViewHolder holder, int position) {

    Contact contact = contactList.get(position);
    holder.mContactName.setText(contact.getName());
    holder.mPhoneNumber.setText(contact.getMobile());

}

@Override
public int getItemCount() {
    return filterContactList.size();
}

@Override
public Filter getFilter() {
    if(contactFilter == null)
        contactFilter = new ContactFilter();
    return contactFilter;
}


private class ContactFilter extends Filter {

    @Override
    protected FilterResults performFiltering(CharSequence constraint) {
        FilterResults filterResults = new FilterResults();
        if (constraint!=null && constraint.length()>0) {
            ArrayList<Contact> tempList = new ArrayList<Contact>();

            for (Contact contact : contactList) {
                if (contact.getName().toLowerCase().contains(constraint.toString().toLowerCase())) {
                    tempList.add(contact);
                }
            }

            filterResults.count = tempList.size();
            filterResults.values = tempList;
            System.out.println("performFiltering:SearchFoundCount "+ tempList.size());
            System.out.println("performFiltering:ActualSize "+ contactList.size());

        } else {
            filterResults.count = contactList.size();
            filterResults.values = contactList;
        }

        return filterResults;
    }

    /**
     * Notify about filtered list to ui
     * @param constraint text
     * @param results filtered result
     */
    @SuppressWarnings("unchecked")
    @Override
    protected void publishResults(CharSequence constraint, FilterResults results) {
        filterContactList = (ArrayList<Contact>) results.values;
        notifyDataSetChanged();
    }
}
}
公共类CustomContactAdapter扩展了RecyclerView.Adapter 实现CompoundButton.OnCheckedChangeListener，可筛选{ 语境； 拉平机； private List contactList=new ArrayList（）； 私有列表筛选器ContactList=new ArrayList（）； 私人通讯过滤器； 公共CustomContactAdapter（上下文，列出联系人） { mInflater=LayoutInflater.from（上下文）； mContext=上下文； this.contactList=联系人； this.filterContactList=联系人； } 公共静态类ContactViewHolder扩展了RecyclerView.ViewHolder 实现View.OnClickListener{ @BindView（R.id.member\u name） TextView mContactName； @BindView（R.id.member_mobile） 文本视图mPhoneNumber； @BindView（R.id.member_图像） 图像视图模拟图像； 公共联系人视图持有人（视图）{ 超级（视图）； ButterKnife.bind（这个，视图）； view.setOnClickListener（这个）； } @凌驾 公共void onClick（视图）{ } } @凌驾 public CustomContactAdapter.ContactViewHolder onCreateViewHolder（视图组父级，int-viewType）{ View itemView=LayoutInflater.from（parent.getContext（）） .充气（R.layout.member\u list\u row，parent，false）； 返回新的CustomContactAdapter.ContactViewHolder（itemView）； } @凌驾 BindViewHolder上的公共无效（CustomContactAdapter.ContactViewHolder，int位置）{ 联系人=联系人列表。获取（位置）； holder.mContactName.setText（contact.getName（））； holder.mPhoneNumber.setText（contact.getMobile（））； } @凌驾 public int getItemCount（）{ 返回filterContactList.size（）； } @凌驾 公共过滤器getFilter（）{ 如果（contactFilter==null） contactFilter=新的contactFilter（）； 回路滤波器； } 私有类ContactFilter扩展了筛选器{ @凌驾 受保护的筛选器结果性能筛选（CharSequence约束）{ FilterResults FilterResults=新的FilterResults（）； if（constraint！=null&&constraint.length（）>0）{ ArrayList tempList=新的ArrayList（）； 用于（联系人：联系人列表）{ if（contact.getName（）.toLowerCase（）.contains（constraint.toString（）.toLowerCase（））包含{ 圣殿骑士。添加（联系人）； } } filterResults.count=templast.size（）； filterResults.values=模板列表； System.out.println（“performFiltering:SearchFoundCount”+templast.size（））； System.out.println（“performFiltering:ActualSize”+contactList.size（））； }否则{ filterResults.count=联系人li 
@SuppressWarnings("unchecked")
     @Override
     protected void publishResults(CharSequence constraint, FilterResults 
      results) {
     contactList= (ArrayList<Contact>) results.values;
     notifyDataSetChanged();
}