在 onResume 上再次检索联系人时,最后一个联系人会重新添加到回收站视图中的第一张卡片上
while retreiving contacts again on onResume, last contact is re-added on first card in recycler view
我不明白为什么在activity恢复时,最后一个联系人又被添加到recyclerview的第一个卡片中。我知道这与游标或内容解析器有关。
这是我遇到问题的 java class。
在 onResume 上再次检索联系人时,最后一个联系人会重新添加到回收站视图中的第一张卡片上
package com.android.eventers;
import android.app.AlertDialog;
import android.content.Context;
import android.content.DialogInterface;
import android.content.Intent;
import android.content.SharedPreferences;
import android.database.Cursor;
import android.os.Bundle;
import android.os.Parcelable;
import android.provider.ContactsContract;
import android.support.design.widget.FloatingActionButton;
import android.support.v7.app.AppCompatActivity;
import android.support.v7.widget.LinearLayoutManager;
import android.support.v7.widget.RecyclerView;
import android.util.Log;
import android.view.View;
import android.widget.TextView;
import android.widget.Toast;
import com.google.i18n.phonenumbers.PhoneNumberUtil;
import com.google.i18n.phonenumbers.PhoneNumberUtil.PhoneNumberType;
import com.google.i18n.phonenumbers.Phonenumber.PhoneNumber;
import java.util.ArrayList;
import java.util.Locale;
public class ContactsActivity extends AppCompatActivity implements ContactsAdapter.ListItemClickListener {
private static final int CHECK_CLICK = 1;
private static final String LIST_STATE_KEY = "list_state";
FloatingActionButton mFloatingActionButton;
RecyclerView mRecyclerView;
ContactsAdapter mAdapter;
String contactName;
String mobileNumber;
String mobileNumberSelected;
Contacts contactsObject;
TextView noItem;
private ArrayList<Contacts> contactsArrayList;
ArrayList<String> tempList;
private Parcelable mListState;
private LinearLayoutManager mLayoutManager;
SharedPreferences mSharedPreferences;
SharedPreferences.Editor mEditor;
private boolean mCalledFromOncreate;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_contacts);
mCalledFromOncreate = true;
noItem = (TextView) findViewById(R.id.no_listitem_in_contacts);
noItem.setVisibility(View.GONE);
mFloatingActionButton = (FloatingActionButton) findViewById(R.id.add_fab_in_main);
contactsArrayList = new ArrayList<Contacts>();
mSharedPreferences = getPreferences(Context.MODE_PRIVATE);
mEditor = mSharedPreferences.edit();
launchConacts();
for (int i = 0; i < contactsArrayList.size(); i++) {
Log.e("name:", "" + contactsArrayList.get(i).getName());
for (int j = 0; j < contactsArrayList.get(i).getMobileNumber().size(); j++) {
Log.e("num:", contactsArrayList.get(i).getMobileNumber().get(j));
}
}
mFloatingActionButton.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
String data = "";
int counter = 0;
for (int i = 0; i < contactsArrayList.size(); i++) {
Contacts singleContact = contactsArrayList.get(i);
if (contactsArrayList.get(i).getFlag()) {
data = data + "\n" + singleContact.getName().toString() + " " + singleContact.getSelectedMobileNumber();
counter++;
mEditor.putBoolean("checkbox_" + contactsArrayList.get(i).getName(), true);
mEditor.putString("selected_mobile_number_for_" + contactsArrayList.get(i).getName(), "" + singleContact.getSelectedMobileNumber());
} else {
mEditor.putBoolean("checkbox_" + contactsArrayList.get(i).getName(), false);
mEditor.putString("selected_mobile_number_for_" + contactsArrayList.get(i).getName(), "" + singleContact.getSelectedMobileNumber());
}
}
mEditor.commit();
Toast.makeText(ContactsActivity.this, "Selected contacts: \n" + data, Toast.LENGTH_LONG).show();
Intent intent = new Intent(ContactsActivity.this, ReportActivity.class);
intent.putExtra("TOTAL_KEY", contactsArrayList.size() + "");
intent.putExtra("SELECTED_KEY", counter + "");
startActivity(intent);
}
});
}
@Override
public void onListItemClick(final int clickedItemIndex, int whichClick) {
switch (whichClick) {
case CHECK_CLICK: {
//Toast.makeText(ContactsActivity.this, "Clicked on Checkbox: "+clickedItemIndex , Toast.LENGTH_SHORT).show();
int selectedMobileNumberPosition = 0;
String selectedMobileNumber = contactsArrayList.get(clickedItemIndex).getSelectedMobileNumber();
if (contactsArrayList.get(clickedItemIndex).getMobileNumber().size() > 1) {
final String items[] = new String[contactsArrayList.get(clickedItemIndex).getMobileNumber().size()];
for (int j = 0; j < contactsArrayList.get(clickedItemIndex).getMobileNumber().size(); j++) {
items[j] = contactsArrayList.get(clickedItemIndex).getMobileNumber().get(j);
if (items[j].contains(selectedMobileNumber)) {
selectedMobileNumberPosition = j;
}
}
AlertDialog levelDialog;
// Creating and Building the Dialog
AlertDialog.Builder builder = new AlertDialog.Builder(this);
builder.setTitle("Please select the mobile number");
builder.setSingleChoiceItems(items, selectedMobileNumberPosition, new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int item) {
mobileNumberSelected = items[item];
contactsArrayList.get(clickedItemIndex).setSelectedMobileNumber(mobileNumberSelected);
// levelDialog.dismiss();
}
});
builder.setPositiveButton("yes", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface arg0, int arg1) {
// Toast.makeText(ContactsActivity.this, "You clicked yes button", Toast.LENGTH_LONG).show();
}
});
levelDialog = builder.create();
levelDialog.show();
}
break;
}
}
}
protected void onSaveInstanceState(Bundle state) {
super.onSaveInstanceState(state);
// Save list state
mListState = mLayoutManager.onSaveInstanceState();
state.putParcelable(LIST_STATE_KEY, mListState);
}
protected void onRestoreInstanceState(Bundle state) {
super.onRestoreInstanceState(state);
// Retrieve list state and list/item positions
if (state != null)
mListState = state.getParcelable(LIST_STATE_KEY);
}
@Override
protected void onResume() {
super.onResume();
if (!mCalledFromOncreate) {
contactsArrayList.clear();
launchConacts();
mAdapter.notifyDataSetChanged();
Log.e("Inside", "onResume after clear");
}
if (mListState != null) {
mLayoutManager.onRestoreInstanceState(mListState);
}
}
void launchConacts() {
//Cursor pho = getContentResolver().query(ContactsContract.CommonDataKinds.Phone.CONTENT_URI, null, null, null, ContactsContract.CommonDataKinds.Phone.DISPLAY_NAME + " COLLATE NOCASE ASC");
Cursor phones = getContentResolver().query(ContactsContract.CommonDataKinds.Phone.CONTENT_URI, null, null, null, ContactsContract.CommonDataKinds.Phone.DISPLAY_NAME + " COLLATE NOCASE ASC");
Log.i("Size is "," "+phones.getCount());
if (phones != null && (phones.getCount() > 0)) {
phones.moveToFirst();
phones.move(0);
for (int i = 0; i < phones.getCount(); i++) {
String name = phones.getString(phones.getColumnIndex(ContactsContract.CommonDataKinds.Phone.DISPLAY_NAME));
String phoneNumberStr = phones.getString(phones.getColumnIndex(ContactsContract.CommonDataKinds.Phone.NUMBER));
try {
final PhoneNumberUtil phoneNumberUtil = PhoneNumberUtil.getInstance();
PhoneNumber phoneNumber = phoneNumberUtil.parse(phoneNumberStr, Locale.getDefault().getCountry());
PhoneNumberUtil.PhoneNumberType phoneNumberType = phoneNumberUtil.getNumberType(phoneNumber);
if (phoneNumberType == PhoneNumberType.MOBILE) {
if (name.equals(contactName)) {
phoneNumberStr = phoneNumberStr.replaceAll(" ", "");
if (phoneNumberStr.contains(mobileNumber)) {
} else {
mobileNumber = String.valueOf(phoneNumber.getNationalNumber());
if (!tempList.contains(mobileNumber)) {
// Log.e("phone: ", " " + phoneNumber);
contactsObject.setMobileNumber(mobileNumber);
tempList.add(mobileNumber);
}
}
} else {
if (contactsObject != null) {
contactsArrayList.add(contactsObject);
Log.e("object added", contactsObject.getName());
}
contactsObject = new Contacts();
tempList = new ArrayList<String>();
contactName = name;
mobileNumber = String.valueOf(phoneNumber.getNationalNumber());
tempList.add(mobileNumber);
// Log.e("name: ", " " + name);
// Log.e("phone: ", " " + mobileNumber);
contactsObject.setName(name);
contactsObject.setMobileNumber(mobileNumber);
contactsObject.setFlag(mSharedPreferences.getBoolean("checkbox_" + name, false));
contactsObject.setSelectedMobileNumber(mSharedPreferences.getString("selected_mobile_number_for_" + name, mobileNumber));
}
}
} catch (Exception e) {
} finally {
}
if (phones.isLast()) {
contactsArrayList.add(contactsObject);
// Log.e("object added last>>>>>", contactsObject.getName());
}
phones.moveToNext();
}
//phones.close();
}
mRecyclerView = (RecyclerView)
findViewById(R.id.recycler_view_in_contacts);
mRecyclerView.setHasFixedSize(true);
mLayoutManager = new
LinearLayoutManager(getApplicationContext());
mRecyclerView.setLayoutManager(mLayoutManager);
mAdapter = new
ContactsAdapter(contactsArrayList, ContactsActivity.this);
mRecyclerView.setAdapter(mAdapter);
if (contactsArrayList.size() == 0)
{
noItem.setVisibility(View.VISIBLE);
}
}
@Override
protected void onPause() {
super.onPause();
mCalledFromOncreate = false;
}
}
这是我发现的,它在您的列表中又添加了一项
尝试删除:
if (contactsObject != null) {
contactsArrayList.add(contactsObject);
Log.e("object added : ", contactsObject.getName);
}
希望对您有所帮助。
我不明白为什么在activity恢复时,最后一个联系人又被添加到recyclerview的第一个卡片中。我知道这与游标或内容解析器有关。
这是我遇到问题的 java class。 在 onResume 上再次检索联系人时,最后一个联系人会重新添加到回收站视图中的第一张卡片上
package com.android.eventers;
import android.app.AlertDialog;
import android.content.Context;
import android.content.DialogInterface;
import android.content.Intent;
import android.content.SharedPreferences;
import android.database.Cursor;
import android.os.Bundle;
import android.os.Parcelable;
import android.provider.ContactsContract;
import android.support.design.widget.FloatingActionButton;
import android.support.v7.app.AppCompatActivity;
import android.support.v7.widget.LinearLayoutManager;
import android.support.v7.widget.RecyclerView;
import android.util.Log;
import android.view.View;
import android.widget.TextView;
import android.widget.Toast;
import com.google.i18n.phonenumbers.PhoneNumberUtil;
import com.google.i18n.phonenumbers.PhoneNumberUtil.PhoneNumberType;
import com.google.i18n.phonenumbers.Phonenumber.PhoneNumber;
import java.util.ArrayList;
import java.util.Locale;
public class ContactsActivity extends AppCompatActivity implements ContactsAdapter.ListItemClickListener {
private static final int CHECK_CLICK = 1;
private static final String LIST_STATE_KEY = "list_state";
FloatingActionButton mFloatingActionButton;
RecyclerView mRecyclerView;
ContactsAdapter mAdapter;
String contactName;
String mobileNumber;
String mobileNumberSelected;
Contacts contactsObject;
TextView noItem;
private ArrayList<Contacts> contactsArrayList;
ArrayList<String> tempList;
private Parcelable mListState;
private LinearLayoutManager mLayoutManager;
SharedPreferences mSharedPreferences;
SharedPreferences.Editor mEditor;
private boolean mCalledFromOncreate;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_contacts);
mCalledFromOncreate = true;
noItem = (TextView) findViewById(R.id.no_listitem_in_contacts);
noItem.setVisibility(View.GONE);
mFloatingActionButton = (FloatingActionButton) findViewById(R.id.add_fab_in_main);
contactsArrayList = new ArrayList<Contacts>();
mSharedPreferences = getPreferences(Context.MODE_PRIVATE);
mEditor = mSharedPreferences.edit();
launchConacts();
for (int i = 0; i < contactsArrayList.size(); i++) {
Log.e("name:", "" + contactsArrayList.get(i).getName());
for (int j = 0; j < contactsArrayList.get(i).getMobileNumber().size(); j++) {
Log.e("num:", contactsArrayList.get(i).getMobileNumber().get(j));
}
}
mFloatingActionButton.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
String data = "";
int counter = 0;
for (int i = 0; i < contactsArrayList.size(); i++) {
Contacts singleContact = contactsArrayList.get(i);
if (contactsArrayList.get(i).getFlag()) {
data = data + "\n" + singleContact.getName().toString() + " " + singleContact.getSelectedMobileNumber();
counter++;
mEditor.putBoolean("checkbox_" + contactsArrayList.get(i).getName(), true);
mEditor.putString("selected_mobile_number_for_" + contactsArrayList.get(i).getName(), "" + singleContact.getSelectedMobileNumber());
} else {
mEditor.putBoolean("checkbox_" + contactsArrayList.get(i).getName(), false);
mEditor.putString("selected_mobile_number_for_" + contactsArrayList.get(i).getName(), "" + singleContact.getSelectedMobileNumber());
}
}
mEditor.commit();
Toast.makeText(ContactsActivity.this, "Selected contacts: \n" + data, Toast.LENGTH_LONG).show();
Intent intent = new Intent(ContactsActivity.this, ReportActivity.class);
intent.putExtra("TOTAL_KEY", contactsArrayList.size() + "");
intent.putExtra("SELECTED_KEY", counter + "");
startActivity(intent);
}
});
}
@Override
public void onListItemClick(final int clickedItemIndex, int whichClick) {
switch (whichClick) {
case CHECK_CLICK: {
//Toast.makeText(ContactsActivity.this, "Clicked on Checkbox: "+clickedItemIndex , Toast.LENGTH_SHORT).show();
int selectedMobileNumberPosition = 0;
String selectedMobileNumber = contactsArrayList.get(clickedItemIndex).getSelectedMobileNumber();
if (contactsArrayList.get(clickedItemIndex).getMobileNumber().size() > 1) {
final String items[] = new String[contactsArrayList.get(clickedItemIndex).getMobileNumber().size()];
for (int j = 0; j < contactsArrayList.get(clickedItemIndex).getMobileNumber().size(); j++) {
items[j] = contactsArrayList.get(clickedItemIndex).getMobileNumber().get(j);
if (items[j].contains(selectedMobileNumber)) {
selectedMobileNumberPosition = j;
}
}
AlertDialog levelDialog;
// Creating and Building the Dialog
AlertDialog.Builder builder = new AlertDialog.Builder(this);
builder.setTitle("Please select the mobile number");
builder.setSingleChoiceItems(items, selectedMobileNumberPosition, new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int item) {
mobileNumberSelected = items[item];
contactsArrayList.get(clickedItemIndex).setSelectedMobileNumber(mobileNumberSelected);
// levelDialog.dismiss();
}
});
builder.setPositiveButton("yes", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface arg0, int arg1) {
// Toast.makeText(ContactsActivity.this, "You clicked yes button", Toast.LENGTH_LONG).show();
}
});
levelDialog = builder.create();
levelDialog.show();
}
break;
}
}
}
protected void onSaveInstanceState(Bundle state) {
super.onSaveInstanceState(state);
// Save list state
mListState = mLayoutManager.onSaveInstanceState();
state.putParcelable(LIST_STATE_KEY, mListState);
}
protected void onRestoreInstanceState(Bundle state) {
super.onRestoreInstanceState(state);
// Retrieve list state and list/item positions
if (state != null)
mListState = state.getParcelable(LIST_STATE_KEY);
}
@Override
protected void onResume() {
super.onResume();
if (!mCalledFromOncreate) {
contactsArrayList.clear();
launchConacts();
mAdapter.notifyDataSetChanged();
Log.e("Inside", "onResume after clear");
}
if (mListState != null) {
mLayoutManager.onRestoreInstanceState(mListState);
}
}
void launchConacts() {
//Cursor pho = getContentResolver().query(ContactsContract.CommonDataKinds.Phone.CONTENT_URI, null, null, null, ContactsContract.CommonDataKinds.Phone.DISPLAY_NAME + " COLLATE NOCASE ASC");
Cursor phones = getContentResolver().query(ContactsContract.CommonDataKinds.Phone.CONTENT_URI, null, null, null, ContactsContract.CommonDataKinds.Phone.DISPLAY_NAME + " COLLATE NOCASE ASC");
Log.i("Size is "," "+phones.getCount());
if (phones != null && (phones.getCount() > 0)) {
phones.moveToFirst();
phones.move(0);
for (int i = 0; i < phones.getCount(); i++) {
String name = phones.getString(phones.getColumnIndex(ContactsContract.CommonDataKinds.Phone.DISPLAY_NAME));
String phoneNumberStr = phones.getString(phones.getColumnIndex(ContactsContract.CommonDataKinds.Phone.NUMBER));
try {
final PhoneNumberUtil phoneNumberUtil = PhoneNumberUtil.getInstance();
PhoneNumber phoneNumber = phoneNumberUtil.parse(phoneNumberStr, Locale.getDefault().getCountry());
PhoneNumberUtil.PhoneNumberType phoneNumberType = phoneNumberUtil.getNumberType(phoneNumber);
if (phoneNumberType == PhoneNumberType.MOBILE) {
if (name.equals(contactName)) {
phoneNumberStr = phoneNumberStr.replaceAll(" ", "");
if (phoneNumberStr.contains(mobileNumber)) {
} else {
mobileNumber = String.valueOf(phoneNumber.getNationalNumber());
if (!tempList.contains(mobileNumber)) {
// Log.e("phone: ", " " + phoneNumber);
contactsObject.setMobileNumber(mobileNumber);
tempList.add(mobileNumber);
}
}
} else {
if (contactsObject != null) {
contactsArrayList.add(contactsObject);
Log.e("object added", contactsObject.getName());
}
contactsObject = new Contacts();
tempList = new ArrayList<String>();
contactName = name;
mobileNumber = String.valueOf(phoneNumber.getNationalNumber());
tempList.add(mobileNumber);
// Log.e("name: ", " " + name);
// Log.e("phone: ", " " + mobileNumber);
contactsObject.setName(name);
contactsObject.setMobileNumber(mobileNumber);
contactsObject.setFlag(mSharedPreferences.getBoolean("checkbox_" + name, false));
contactsObject.setSelectedMobileNumber(mSharedPreferences.getString("selected_mobile_number_for_" + name, mobileNumber));
}
}
} catch (Exception e) {
} finally {
}
if (phones.isLast()) {
contactsArrayList.add(contactsObject);
// Log.e("object added last>>>>>", contactsObject.getName());
}
phones.moveToNext();
}
//phones.close();
}
mRecyclerView = (RecyclerView)
findViewById(R.id.recycler_view_in_contacts);
mRecyclerView.setHasFixedSize(true);
mLayoutManager = new
LinearLayoutManager(getApplicationContext());
mRecyclerView.setLayoutManager(mLayoutManager);
mAdapter = new
ContactsAdapter(contactsArrayList, ContactsActivity.this);
mRecyclerView.setAdapter(mAdapter);
if (contactsArrayList.size() == 0)
{
noItem.setVisibility(View.VISIBLE);
}
}
@Override
protected void onPause() {
super.onPause();
mCalledFromOncreate = false;
}
}
这是我发现的,它在您的列表中又添加了一项
尝试删除:
if (contactsObject != null) {
contactsArrayList.add(contactsObject);
Log.e("object added : ", contactsObject.getName);
}
希望对您有所帮助。