comment lire et écrire des autorisations de contacts

Question

J'ai réussi à lire des contacts mais je veux écrire des contacts et les lire. Quelqu'un peut-il s'il vous plaît aviser comment je suis capable de faire ces deux tâches, Message d'erreur.

Veuillez voir mon code ci-dessous pour le READ_CONTACTS Je veux également l'étendre à WRITE_CONTACTS.

 // Called when the user is performing an action which requires the app to read the 
    // user's contacts 
    public void getPermissionToReadUserContacts() { 
     // 1) Use the support library version ContextCompat.checkSelfPermission(...) to avoid 
     // checking the build version since Context.checkSelfPermission(...) is only available 
     // in Marshmallow 
     // 2) Always check for permission (even if permission has already been granted) 
     // since the user can revoke permissions at any time through Settings 
     if (ContextCompat.checkSelfPermission(this, Manifest.permission.READ_CONTACTS) 
       != PackageManager.PERMISSION_GRANTED) { 

      // The permission is NOT already granted. 
      // Check if the user has been asked about this permission already and denied 
      // it. If so, we want to give more explanation about why the permission is needed. 
      if (shouldShowRequestPermissionRationale(
        Manifest.permission.READ_CONTACTS)) { 
       // Show our own UI to explain to the user why we need to read the contacts 
       // before actually requesting the permission and showing the default UI 
      } 

      // Fire off an async request to actually get the permission 
      // This will show the standard permission request dialog UI 
      requestPermissions(new String[]{Manifest.permission.READ_CONTACTS}, 
        READ_CONTACTS_PERMISSIONS_REQUEST); 
     } 
    } 

    // Callback with the request from calling requestPermissions(...) 
    @Override 
    public void onRequestPermissionsResult(int requestCode, 
              @NonNull String permissions[], 
              @NonNull int[] grantResults) { 
     // Make sure it's our original READ_CONTACTS request 
     if (requestCode == READ_CONTACTS_PERMISSIONS_REQUEST) { 
      if (grantResults.length == 1 && 
        grantResults[0] == PackageManager.PERMISSION_GRANTED) { 
       Toast.makeText(this, "Read Contacts permission granted", Toast.LENGTH_SHORT).show(); 
      } else { 
       Toast.makeText(this, "Read Contacts permission denied", Toast.LENGTH_SHORT).show(); 
      } 
     } else { 
      super.onRequestPermissionsResult(requestCode, permissions, grantResults); 
     } 
    } 
} 

    @Override 
    protected void onActivityResult(int requestCode, int resultCode, Intent data) { 
     super.onActivityResult(requestCode, resultCode, data); 
     if (resultCode == Activity.RESULT_OK) { 
      ContentResolver reContentResolverol = getContentResolver(); 
      Uri contactData = data.getData(); 
      @SuppressWarnings("deprecation") 
      Cursor cursor = managedQuery(contactData, null, null, null, null); 
      cursor.moveToFirst(); 
      String username = cursor.getString(cursor.getColumnIndex(ContactsContract.Contacts.DISPLAY_NAME)); 
      String contactId = cursor.getString(cursor.getColumnIndex(ContactsContract.Contacts._ID)); 
      Cursor phone = reContentResolverol.query(ContactsContract.CommonDataKinds.Phone.CONTENT_URI, 
        null, 
        ContactsContract.CommonDataKinds.Phone.CONTACT_ID + " = " + contactId, 
        null, 
        null); 
      while (phone.moveToNext()) { 
       String usernumber = phone.getString(phone.getColumnIndex(ContactsContract.CommonDataKinds.Phone.NUMBER)); 
       phone1.setText(usernumber); 
       name1.setText(username); 
      } 

     } 
    } 

} 

Answer 1

Vous devez demander la permission READ_CONTACTS, à la fois in the manifest et at runtime.

En outre, s'il vous plaît noter que managedQuery() a été obsolète il y a six ans, et c'était une mauvaise idée avant, puis. Veuillez utiliser des techniques plus récentes (par exemple, CursorLoader).