我想将搜索功能添加到联系人列表中，以便根据姓名或号码搜索联系人。我添加了编辑文本，并添加了onText更改侦听器，但是我感到困惑，哪些数据将被传递到，以及如何将数据传递到搜索栏。请对此进行一些澄清。这是我用于显示联系人的代码：
public class Split extends AppCompatActivity implements AdapterView.OnItemClickListener {
public static String TAG = "amount";
ListView mainListView;
ProgressDialog pd;
//String arr=new String[100];
public static final int PERMISSIONS_REQUEST_READ_CONTACTS = 100;
final static List<String> name1 = new ArrayList<>();
List<String> phno1 = new ArrayList<>();
List<Long> bal = new ArrayList<>();
List<Bitmap> img = new ArrayList<>();
//ArrayList<String> namelist= new ArrayList<>();
MyAdapter ma;
private SearchView mSearchView;
Button select;
int amount=100;
float result;
String ph;
String phoneNumber;
EditText search;
private FirebaseAuth mAuth;
FirebaseUser firebaseUser;
ArrayAdapter adapter;
FirebaseFirestore db = FirebaseFirestore.getInstance();
@SuppressLint("StaticFieldLeak")
@Override
protected void onCreate(Bundle savedInstanceState) {
setTitle("Split");
if(getSupportActionBar()!= null) {
getSupportActionBar().setDisplayHomeAsUpEnabled(true);
}
super.onCreate(savedInstanceState);
setContentView(R.layout.split);
mAuth = FirebaseAuth.getInstance();
search = findViewById(R.id.search_bar);
firebaseUser = FirebaseAuth.getInstance().getCurrentUser();
final List<String> phonenumber = new ArrayList<>();
System.out.print(phonenumber);
mainListView = findViewById(R.id.listview);
showContacts();
select = findViewById(R.id.button1);
search.addTextChangedListener(new TextWatcher() {
@Override
public void onTextChanged(CharSequence cs, int arg1, int arg2, int arg3) {
// When user changed the Text
}
@Override
public void beforeTextChanged(CharSequence arg0, int arg1, int arg2,
int arg3) {
// TODO Auto-generated method stub
}
@Override
public void afterTextChanged(Editable arg0) {
// TODO Auto-generated method stub
}
});
select.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
StringBuilder checkedcontacts = new StringBuilder();
ArrayList checkedcontacts1 = new ArrayList();
ArrayList names = new ArrayList();
System.out.println(".............." + (ma.mCheckStates.size()));
System.out.println("name size is" + name1.size());
int a = ma.mCheckStates.size();
result = ((float) amount / a);
System.out.println("final1 amount is "+result);
long result1=(long) result;
System.out.println("final amount is "+result1);
for(int k =0;k<=a;k++){
bal.add(result1);
}
System.out.println("balance"+bal);
System.out.println("selected contacts split amount"+result);
for (int i = 0; i < name1.size(); i++) // it displays selected contacts with amount
{
if (ma.mCheckStates.get(i)) {
checkedcontacts.append(phno1.get(i)).append("\t").append("\t").append("\t").append(result1);
checkedcontacts1.add((phno1.get(i)));
names.add((name1.get(i)));
checkedcontacts.append("\n");
System.out.println("checked contacts:" + "\t" + phno1.get(i) + "\t" + "amount" + "\t" + result1);
}
}
System.out.println("checked names"+names);
System.out.println(
"checkec contcts foggfgfgfgfgf"+ checkedcontacts1
);
List<Object> list = new ArrayList<>();
for(Object i : checkedcontacts1) {
list.add(i);
}
System.out.println("checked contacts size is" + checkedcontacts1.size());
HashMap<String, HashMap<String, Object>> Invites = new HashMap<>();
for (int i = 0; i < checkedcontacts1.size(); i++) {
HashMap<String, Object> entry = new HashMap<>();
entry.put("PhoneNumber",list.get(i));
entry.put("Name",names.get(i));
System.out.println("entry is"+entry);
for (int j = i; j <= i; j++) {
System.out.println("phonenumber" + i + ":" + list.get(i));
System.out.println("amount" + j + ":" + bal.get(j));
//dataToSave.put("phonenumber" +i, list.get(i));
entry.put("Amount", bal.get(j));
}
Invites.put("Invite" + i, entry);
}
FirebaseFirestore db = FirebaseFirestore.getInstance();
db.collection("deyaPayUsers").document(Objects.requireNonNull(mAuth.getUid())).collection("Split").document(mAuth.getUid()).collection("SentInvitations")
.add(Invites)
.addOnSuccessListener(new OnSuccessListener<DocumentReference>() {
@Override
public void onSuccess(DocumentReference documentReference) {
Log.d(TAG, "DocumentSnapshot added with ID: " + documentReference.getId());
}
});
Intent intent = new Intent(Split.this, Display.class);
intent.putExtra("selected", checkedcontacts.toString().split(","));
startActivity(intent);
/*db.collection("deyaPayUsers").document(mAuth.getUid().toString()).collection("Split").document(mAuth.getUid().toString()).collection("SentInvitations").get().addOnCompleteListener(new OnCompleteListener<QuerySnapshot>() {
@Override
public void onComplete(@NonNull Task<QuerySnapshot> task) {
if (task.isSuccessful()) {
for (DocumentSnapshot document : task.getResult()) {
Log.d(TAG, document.getId() + " => " + document.getData());
}
} else {
Log.d(TAG, "Error getting documents: ", task.getException());
}
}
});*/
}
});
new AsyncTask<Void, Void, Void>()
{
@Override
protected void onPreExecute()
{
pd = ProgressDialog.show(Split.this,
"Loading..", "Please Wait", true, false);
}// End of onPreExecute method
@Override
protected Void doInBackground(Void... params)
{
getAllContacts();
return null;
}// End of doInBackground method
@Override
protected void onPostExecute(Void result)
{
pd.dismiss();
MyAdapter ma = new MyAdapter(Split.this);
// ArrayAdapter<String> arrayAdapter = new ArrayAdapter<String>(MainActivity.this, android.R.layout.simple_list_item_1,aa);
mainListView.setAdapter(ma);
mainListView.setItemsCanFocus(false);
mainListView.setTextFilterEnabled(true);
mainListView.setChoiceMode(ListView.CHOICE_MODE_MULTIPLE_MODAL);
}//End of onPostExecute method
}.execute((Void[]) null);
}
public void onDestroy(){
super.onDestroy();
if ( pd!=null && pd.isShowing() ){
pd.cancel();
}
}
private void showContacts() // it is for to check the build versions of android . if build version is >23 or above it is set the permissions at the run time . if the build version is less than 23 the we give the permissions at manifest file .
{if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M && checkSelfPermission(Manifest.permission.READ_CONTACTS) != PackageManager.PERMISSION_GRANTED) {
requestPermissions(new String[]{Manifest.permission.READ_CONTACTS}, PERMISSIONS_REQUEST_READ_CONTACTS);
}
}
@Override
public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, // it is display the request access permission dilogue box to access the contacts of user.
@NonNull int[] grantResults) {
if (requestCode == PERMISSIONS_REQUEST_READ_CONTACTS) {
if (grantResults[0] == PackageManager.PERMISSION_GRANTED) {
// Permission is granted
showContacts();
} else {
Toast.makeText(this, "Until you grant the permission, we canot display the names", Toast.LENGTH_SHORT).show();
}
}
}
private void getAllContacts() {
// it displays the contact phonenumber and name rom the phone book. and add to the list.
ContentResolver cr = getContentResolver();
Cursor phones = cr.query(ContactsContract.CommonDataKinds.Phone.CONTENT_URI, null, null, null, null);
assert phones != null;
while (phones.moveToNext()) {
String name = phones.getString(phones.getColumnIndex(ContactsContract.CommonDataKinds.Phone.DISPLAY_NAME));
phoneNumber = phones.getString(phones.getColumnIndex(ContactsContract.CommonDataKinds.Phone.NUMBER));
phoneNumberWithOutCountryCode();
String contactId = phones.getString(phones.getColumnIndex(ContactsContract.CommonDataKinds.Phone.CONTACT_ID));
//
Bitmap bitmap = loadContactPhoto(
getContentResolver(), Long.valueOf(contactId));
name1.add(name);
img.add(bitmap);
}
phones.close();
System.out.println("count is" + img.size());
}
public static Bitmap loadContactPhoto(ContentResolver cr, long id) {
Uri uri = ContentUris.withAppendedId(
ContactsContract.Contacts.CONTENT_URI, id);
InputStream input = ContactsContract.Contacts
.openContactPhotoInputStream(cr, uri);
if (input == null) {
return null;
}
return BitmapFactory.decodeStream(input);
}
private void phoneNumberWithOutCountryCode() {
try {
// phone must begin with '+'
if(phoneNumber.startsWith("+")) {
System.out.println("hello yam");
PhoneNumberUtil phoneUtil = PhoneNumberUtil.getInstance();
Phonenumber.PhoneNumber numberProto = phoneUtil.parse(phoneNumber, "");
int countryCode = numberProto.getCountryCode();
long nationalNumber = numberProto.getNationalNumber();
Log.i("code", "code " + countryCode);
Log.i("code", "national number " + nationalNumber);
ph = String.valueOf(nationalNumber);
phno1.add(ph);
// selectedphonenumber.setText(ph);
}
else{
String nospacenum = phoneNumber.replaceAll("[\\s\\-()]", "");
System.out.print("hii"+nospacenum);
phno1.add(nospacenum);
// selectedphonenumber.setText(nospacenum);
}
} catch (NumberParseException e) {
System.err.println("NumberParseException was thrown: " + e.toString());
}
}
@Override
public void onItemClick(AdapterView<?> arg0, View arg1, int arg2, long arg3) {
ma.toggle(arg2);
}
class MyAdapter extends BaseAdapter implements CompoundButton.OnCheckedChangeListener{// this class is for to check the contacts for spliting the amount.
public SparseBooleanArray mCheckStates;
LayoutInflater mInflater;
private Context mContext;
// List list;
MyAdapter(Context context) {
mCheckStates = new SparseBooleanArray(name1.size());
mContext = context;
// System.out.println(mCheckStates);
//System.out.println(name1.size());
//System.out.println(name1);
// inflate custom listview
mInflater = (LayoutInflater) Split.this.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
}
// public MyAdapter(Context context)
// {
// mContext = context;
// }//End of CustomAdapter constructor
@Override
public int getCount() {
// TODO Auto-generated method stub
return name1.size();
}
@Override
public Object getItem(int position) {
// TODO Auto-generated method stub
return position;
}
@Override
public long getItemId(int position) {
// TODO Auto-generated method stub
return position;
}
@SuppressLint("InflateParams")
@Override
public View getView(final int position, View convertView, ViewGroup parent) { // this method set the phone number and name rom the list to the textviews.
// TODO Auto-generated method stub
ViewHolder holder;
final int pos = position;
View vi = convertView;
if (convertView== null) {
holder = new ViewHolder();
vi = mInflater.inflate(R.layout.row, null);//false rasa..
holder.tv = vi.findViewById(R.id.name);
holder.tv1 = vi.findViewById(R.id.mobile);
holder.checkbox = vi.findViewById(R.id.check);
holder.image = vi.findViewById(R.id.image);
convertView.setTag(holder);
}
else
{
holder = (ViewHolder) convertView.getTag();
}//End of else
holder.checkbox.setId(position);
holder.tv.setId(position);
holder.tv1.setId(position);
holder.tv.setText( name1.get(position));
holder.tv1.setText( phno1.get(position));
// if(img.get(position)!= null) {
// image.setImageBitmap(img.get(position));
// }
// else
// {
// image = vi.findViewById(R.id.image);
// }
holder.checkbox.setTag(position);
holder.checkbox.setChecked(mCheckStates.get(position, false));
holder.checkbox.setOnCheckedChangeListener(this);
return vi;
}
boolean isChecked(int position) {// it returns the checked contacts
return mCheckStates.get(position, false);
}
void setChecked(int position, boolean isChecked) { //set checkbox postions if it sis checked
mCheckStates.put(position, isChecked);
System.out.println("hello...........");
notifyDataSetChanged();
}
void toggle(int position) {
setChecked(position, !isChecked(position));
}
@Override
public void onCheckedChanged(CompoundButton compoundButton, boolean isChecked) {
if(isChecked){
mCheckStates.put((Integer)compoundButton.getTag(), true);
}
else {
mCheckStates.delete((Integer)compoundButton.getTag());
}
}
}
public boolean onOptionsItemSelected(MenuItem item) {
int id = item.getItemId();
if (id == android.R.id.home)
{
startActivity(new Intent(this,deyaPay.class));
finish();
}
return super.onOptionsItemSelected(item);
}
public void onBackPressed(){
Intent i = new Intent(Split.this,deyaPay.class);
startActivity(i);
finish();
}
static class ViewHolder {
TextView tv;
TextView tv1;
CheckBox checkbox;
ImageView image;
int id;
}
}