我的问题是：
我有4个课程：
现在是我的故事：
MainActivity中，我单击AddButton转到NewContactActivity NewContactActivity中，键入信息联系人，然后单击SaveButton将信息保存到ContactList，然后返回到MainActivity 我的文件： MainActivity.java：
public class MainActivity extends AppCompatActivity {
public static final int REQUEST_CODE_SPEECH_INPUT=1000;
private TabLayout tabLayout;
private ViewPager viewPager;
private ViewPagerAdapter adapter;
private Toolbar toolbar;
private SearchView sv;
private FloatingActionButton fab;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
//initializing vars
tabLayout = (TabLayout) findViewById(R.id.tablayout_id);
viewPager = (ViewPager) findViewById(R.id.viewpager_id);
toolbar = (Toolbar) findViewById(R.id.toolbar);
sv = (SearchView) toolbar.findViewById(R.id.searchview);
fab =(FloatingActionButton)findViewById(R.id.fab);
ImageView img_voice_search = (ImageView) toolbar.findViewById(R.id.ic_voice);
adapter = new ViewPagerAdapter(getSupportFragmentManager());
//Set to toolbar
setSupportActionBar(toolbar);
getSupportActionBar().setDisplayShowTitleEnabled(false); //Remove Title of Toolbar
//Add Fragment here
adapter.addFragment(new CallFragment(),"GẦN ĐÂY");
adapter.addFragment(new ContactFragment(), "DANH BẠ");
viewPager.setAdapter(adapter);
//Custom tablayout
tabLayout.setupWithViewPager(viewPager);
tabLayout.setTabTextColors(getResources().getColor(R.color.colorHintTextLight), getResources().getColor(R.color.colorTextLight));
//Speech to Text
img_voice_search.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
//Auto focus to searchview when click image voice
sv.setIconified(false);
sv.requestFocus();
speak();
}
});
//fab on click event
fab.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Intent intent=new Intent(MainActivity.this,NewContactActivity.class);
startActivityForResult(intent, 2);
}
});
}
public void speak(){
Intent mIntent = new Intent(RecognizerIntent.ACTION_RECOGNIZE_SPEECH);
mIntent.putExtra(RecognizerIntent.EXTRA_LANGUAGE_MODEL
, RecognizerIntent.LANGUAGE_MODEL_FREE_FORM);
mIntent.putExtra(RecognizerIntent.EXTRA_LANGUAGE, Locale.getDefault());
mIntent.putExtra(RecognizerIntent.EXTRA_PROMPT, "Hi speak something");
try {
startActivityForResult(mIntent, REQUEST_CODE_SPEECH_INPUT);
} catch (Exception ex){
Toast.makeText(this, "" + ex.getMessage(), Toast.LENGTH_SHORT).show();
}
}
//receive and handle it
@Override
protected void onActivityResult(int requestCode, int resultCode, @Nullable Intent data) {
super.onActivityResult(requestCode, resultCode, data);
switch (requestCode){
case REQUEST_CODE_SPEECH_INPUT:{
if(resultCode == RESULT_OK && null != data){
//get text array from voice intent
ArrayList<String> result = data.getStringArrayListExtra(RecognizerIntent.EXTRA_RESULTS);
//set to search view
sv.setQuery(result.get(0), true);
}
break;
}
case 2:{
String message=data.getStringExtra("MESSAGE");
Toast.makeText(getApplicationContext(), "Đã thêm danh bạ: " + message, Toast.LENGTH_SHORT).show();
}
}
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
getMenuInflater().inflate(R.menu.menu_toolbar, menu);
return true;
}
}
RecyclerViewAdapter.java：
public class RecyclerViewAdapter extends RecyclerView.Adapter<RecyclerViewAdapter.MyViewHolder> {
Context mContext;
List<Contact> mData;
Dialog mDialog;
private TextView dialog_tvName, dialog_tvPhone, dialog_Fname;
public RecyclerViewAdapter(Context mContext, List<Contact> mData) {
this.mContext = mContext;
this.mData = mData;
}
@NonNull
@Override
public MyViewHolder onCreateViewHolder(@NonNull ViewGroup viewGroup, int i) {
View v;
v = LayoutInflater.from(mContext).inflate(R.layout.item_contact, viewGroup, false);
final MyViewHolder viewHolder = new MyViewHolder(v);
//Initializing my dialog
mDialog = new Dialog(mContext);
mDialog.setContentView(R.layout.dialog_contact);
mDialog.getWindow().setBackgroundDrawable(new ColorDrawable(Color.TRANSPARENT));
viewHolder.items_contact.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
dialog_tvName = (TextView)mDialog.findViewById(R.id.dialog_tvName);
dialog_tvPhone = (TextView)mDialog.findViewById(R.id.dialog_tvPhone);
dialog_Fname = (TextView)mDialog.findViewById(R.id.dialog_Fname);
// ImageView dialog_contact_img = (ImageView) mDialog.findViewById(R.id.dialog_img);
dialog_tvName.setText(mData.get(viewHolder.getAdapterPosition()).getName());
dialog_tvPhone.setText(mData.get(viewHolder.getAdapterPosition()).getPhone());
dialog_Fname.setText(mData.get(viewHolder.getAdapterPosition()).getFname());
// dialog_contact_img.setImageResource(mData.get(viewHolder.getAdapterPosition()).getPhoto());
// Toast.makeText(mContext, "Test Click " + String.valueOf(viewHolder.getAdapterPosition()), Toast.LENGTH_SHORT).show();
mDialog.show();
//Sự kiện click vào icon gọi để chuyển hướng cuộc gọi đến sđt đc chọn
ImageView call_button = (ImageView)mDialog.findViewById(R.id.call_button);
ImageView chat_button = (ImageView)mDialog.findViewById(R.id.chat_button);
call_button.setOnClickListener(new View.OnClickListener(){
@Override
public void onClick(View v) {
// Intent i1 = new Intent (mContext, MainActivity.class);
mContext.startActivity(new Intent(Intent.ACTION_CALL, Uri.parse("tel:" + mData.get(viewHolder.getAdapterPosition()).getPhone())));
}
});
//click vào icon sms để vào ô chat với sđt đó
chat_button.setOnClickListener(new View.OnClickListener(){
@Override
public void onClick(View v) {
mContext.startActivity(new Intent(Intent.ACTION_SENDTO, Uri.parse("smsto:"+ mData.get(viewHolder.getAdapterPosition()).getPhone())));
}
});
}
});
return viewHolder;
}
@Override
public void onBindViewHolder(@NonNull MyViewHolder myViewHolder, final int position) {
myViewHolder.tvName.setText(mData.get(position).getName());
myViewHolder.tvFname.setText(mData.get(position).getFname());
// myViewHolder.img.setImageResource(mData.get(position).getPhoto());
}
@Override
public int getItemCount() {
return mData.size();
}
public static class MyViewHolder extends RecyclerView.ViewHolder{
private LinearLayout items_contact;
private TextView tvName;
private TextView tvFname;
private ImageView img;
public MyViewHolder(@NonNull View itemView) {
super(itemView);
items_contact = (LinearLayout) itemView.findViewById(R.id.contact_items_id);
tvName = (TextView)itemView.findViewById(R.id.tvName);
tvFname = (TextView)itemView.findViewById(R.id.tvFname);
img = (ImageView)itemView.findViewById(R.id.img_contact);
}
}
}
ContactFragment.java：
public class ContactFragment extends Fragment {
View v;
private RecyclerView recyclerView;
private List<Contact> lstContact;
public ContactFragment() {
}
@Nullable
@Override
public View onCreateView(@NonNull LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
v = inflater.inflate(R.layout.contact_fragment, container, false);
recyclerView = (RecyclerView)v.findViewById(R.id.contact_recyclerview);
RecyclerViewAdapter adapter = new RecyclerViewAdapter(getContext(), lstContact);
recyclerView.setLayoutManager(new LinearLayoutManager(getActivity()));
recyclerView.setAdapter(adapter);
return v;
}
public void loadContacList(){
//Accessing to contact list and get info
ContentResolver resolver = getActivity().getContentResolver();
Cursor cursor = resolver.query(ContactsContract.Contacts.CONTENT_URI, null, null, null, null);
while (cursor.moveToNext()){
String id = cursor.getString(cursor.getColumnIndex(ContactsContract.Contacts._ID));
String name = cursor.getString(cursor.getColumnIndex(ContactsContract.Contacts.DISPLAY_NAME));
List<String> lstPhoneNumber = new ArrayList<>();
List<String> lstEmail = new ArrayList<>();
//Phone
Cursor phoneCursor = resolver.query(ContactsContract.CommonDataKinds.Phone.CONTENT_URI
, null, ContactsContract.CommonDataKinds.Phone.CONTACT_ID + " = ?"
, new String[]{id}, null);
while (phoneCursor.moveToNext() && phoneCursor != null){
String phoneNumber = phoneCursor.getString(phoneCursor.getColumnIndex(ContactsContract.CommonDataKinds.Phone.NUMBER));
lstPhoneNumber.add(phoneNumber);
}
phoneCursor.close();
//Email
Cursor emailCursor = resolver.query(ContactsContract.CommonDataKinds.Email.CONTENT_URI
, null, ContactsContract.CommonDataKinds.Email.CONTACT_ID + " = ?"
, new String[]{id}, null);
while (emailCursor.moveToNext() && emailCursor != null){
String email = emailCursor.getString(emailCursor.getColumnIndex(ContactsContract.CommonDataKinds.Email.DATA));
lstEmail.add(email);
}
emailCursor.close();
lstContact.add(new Contact(id, name, name.substring(0, 1).toUpperCase()
, lstPhoneNumber.size() == 0 ? "" : lstPhoneNumber.get(0)
, lstEmail.size()== 0 ? "" : lstEmail.get(0)));
}
cursor.close();
Collections.sort(lstContact, new CustomComparaterLetterContact());
}
@Override
public void onCreate(@Nullable Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
lstContact = new ArrayList<>();
loadContacList();
}
//Class to Compare lstContact for letters
private class CustomComparaterLetterContact implements Comparator<Contact> {
@Override
public int compare(Contact o1, Contact o2) {
return o1.getName().compareToIgnoreCase(o2.getName());
}
}
}
NewContactActivity.java：
public class NewContactActivity extends AppCompatActivity {
private EditText edtName;
private EditText edtPhone;
private EditText edtEmail;
private ImageButton btnBack;
private TextView edtAdd;
@Override
protected void onCreate(@Nullable Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_add_contact);
btnBack = (ImageButton) findViewById(R.id.btnBack);
edtAdd = (TextView) findViewById(R.id.edtAdd);
btnBack.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
onBackPressed();
}
});
// LinearLayout llExtraFields = findViewById(R.id.admin);
// if (llExtraFields.getVisibility() == View.VISIBLE) {
// llExtraFields.setVisibility(View.GONE);
// } else {
// llExtraFields.setVisibility(View.VISIBLE);
// }
edtAdd.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
edtName = (EditText) findViewById(R.id.edtName);
edtPhone = (EditText) findViewById(R.id.edtPhone);
edtEmail = (EditText)findViewById(R.id.edtEmail);
String name = edtName.getText().toString();
String phone = edtPhone.getText().toString();
String email = edtEmail.getText().toString();
ArrayList < ContentProviderOperation > ops = new ArrayList < ContentProviderOperation > ();
ops.add(ContentProviderOperation.newInsert(
ContactsContract.RawContacts.CONTENT_URI)
.withValue(ContactsContract.RawContacts.ACCOUNT_TYPE, null)
.withValue(ContactsContract.RawContacts.ACCOUNT_NAME, null)
.build());
if (name != null) {
ops.add(ContentProviderOperation.newInsert(
ContactsContract.Data.CONTENT_URI)
.withValueBackReference(ContactsContract.Data.RAW_CONTACT_ID, 0)
.withValue(ContactsContract.Data.MIMETYPE,
ContactsContract.CommonDataKinds.StructuredName.CONTENT_ITEM_TYPE)
.withValue(
ContactsContract.CommonDataKinds.StructuredName.DISPLAY_NAME,
name).build());
}
if (phone != null) {
ops.add(ContentProviderOperation.
newInsert(ContactsContract.Data.CONTENT_URI)
.withValueBackReference(ContactsContract.Data.RAW_CONTACT_ID, 0)
.withValue(ContactsContract.Data.MIMETYPE,
ContactsContract.CommonDataKinds.Phone.CONTENT_ITEM_TYPE)
.withValue(ContactsContract.CommonDataKinds.Phone.NUMBER, phone)
.withValue(ContactsContract.CommonDataKinds.Phone.TYPE,
ContactsContract.CommonDataKinds.Phone.TYPE_MOBILE)
.build());
}
if (email != null) {
ops.add(ContentProviderOperation.newInsert(ContactsContract.Data.CONTENT_URI)
.withValueBackReference(ContactsContract.Data.RAW_CONTACT_ID, 0)
.withValue(ContactsContract.Data.MIMETYPE,
ContactsContract.CommonDataKinds.Email.CONTENT_ITEM_TYPE)
.withValue(ContactsContract.CommonDataKinds.Email.DATA, email)
.withValue(ContactsContract.CommonDataKinds.Email.TYPE, ContactsContract.CommonDataKinds.Email.TYPE_WORK)
.build());
}
try {
getContentResolver().applyBatch(ContactsContract.AUTHORITY, ops);
Toast.makeText(getApplicationContext(), "Thêm thành công danh bạ: " + name, Toast.LENGTH_SHORT).show();
} catch (Exception e) {
e.printStackTrace();
Toast.makeText(getApplicationContext(), "Thêm thành công danh bạ: " + name, Toast.LENGTH_SHORT).show();
}
Intent intent=new Intent();
intent.putExtra("MESSAGE",name);
setResult(2,intent);
finish();
}
});
}
}
我为此花了4天，但找不到解决方案。 非常感谢
答案 0 :(得分：1)
请尝试在ContactFragment类中添加此代码，然后尝试。
if(!Object.prototype.hasOwnProperty.call(this.clickHandlers, index))
{
this.clickHandlers[index] = () =>
this.props.btnCheckOutAction(this.props.currentState.isModelOpen);
}
return this.clickHandlers[index];
handleItemClick(key) {
debugger
console.log("index::::::::::::::::::::::", key);
if (!Object.prototype.hasOwnProperty.call(this.clickHandlers, index)) {
this.clickHandlers[index] = () => this.props.btnCheckOutAction(this.props.currentState.isModelOpen);
}
return this.clickHandlers[index];
}
答案 1 :(得分：0)
'在向您的recyclerview添加新元素后添加'
notifyItemInserted(position);
notifyDatasetChanged();
'在您的适配器中。'
答案 2 :(得分：0)
您在setResult的{{1}}方法中放入了错误参数，这就是为什么NewContactActivity中的Toast不显示的原因。
如下修改您的MainActivity
setResultMainActivity
setResult(Activity.RESULT_OK,intent);