updating recycler view items from a different activity

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• Can not build APK file with buildozer. UnicodeDecodeError

  When I am pack my app with Buildozer for Android, I get an UnicodeDecodeError. Log2 is attached together with Buildozer build.py.

  OS: UBUNTU 16.04.

  I am trying on python 2.7 and 3.5, get same error.

  Link with files: https://yadi.sk/d/F76tP019ZAKRLA
• sending image to another activity

  I am trying to send an image that in ListView from onItemClick to onCreate method in another activity .

  This is my code :

  Activity 1

  product_imageView= findViewById(R.id.product_imageView);
  
  
  byte[] image = savedInstanceState.getByteArray("Product image");
  
   Bitmap receivedImage = BitmapFactory.decodeByteArray(image,0,image.length);
  
  //here it give me error
          product_imageView.setImageResource(receivedImage);
  

  Activity 1

  String productimage = productslist.get(position).getProductImage();
  
  Bundle bundle = new Bundle();
                  bundle.putByteArray("Product image", productimage.getBytes());
                  intent.putExtras(bundle);
                  startActivity(intent);
  
• Doesn't receiver proper data in android from HC05 bluetooth module

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• Updating database tables from the front end

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  The problem is that I need to access the database and update/delete/insert data from a form on the front end. So a user could type in a text box a query and my database will run it. I know how to get data from the back end and bring it to show on the front end, but I can't figure out how to go the other way around.

  With this, if there is an error message on the update/delete/insert such as violating a foreign key policy, that message needs to be shown back to the front end.

  Any help with this would be great, thank you!
• Is trigger comes as part of transaction in SQL Server

  I have three tables in SQL Server:

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  3. EmployeeHistory

  I wrote a trigger on the Employee table so that if entry is inserted into Employee, then it also inserts a row into EmployeeHistory; which is working fine.

  Now I have created stored procedure with transaction and inserting records into Employee, then EmployeeDetails. After inserting the record into Employee and if there is any issue and the transaction is rolled back, then will the row inserted into EmployeeHistory also be removed or not?
• I need help on a query regarding fetching data from a database file

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  select * from Temperature where Pin in (21,20,16,12) and Module =1 order by S_No desc limit 4
  

  Click here to download Database file
• Is it better to use RecyclerView or copy rows for hardcoded view?

  I wanna make a settings view, which will have ImageView (icon), bigger TextView (title), smaller TextView (description/info).

  Is it better to use RecyclerView or just copy the horizontal linear layouts to another vertical linear layout and set the strings in xml?

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• All YoutubeplayersupportFragment displaying the same video in a Recycler view

  I have a recylerview. Each item of the recycler view is a card view. The card view has on of the element as FrameLayout. This frameLayout is holding a YouTubePlayerSupportFragment in the code. Now each of the YouTubePlayerSupportFragment is supposed to contain different youtube videos. But when the Recycler view adapter renders, All the rows have the same video associated with it. I have tried to associate different container ids i.e:- dynamically assigning ids to Frame layout but the problem persists.

  public class YoutubeVideoAdapter extends RecyclerView.Adapter<YoutubeVideoAdapter.YoutubeViewHolder> {
          private static final String TAG = YoutubeVideoAdapter.class.getSimpleName();
          private Context context;
          private ArrayList<TaskEntry> youtubeVideoModelArrayList;
          private static String API_KEY = "AAAAABBBBCCCC"; 
  
  
          // declare variables for the elemnts of the card view
          private CardView youtubeCardView;
          private YouTubeThumbnailView videoThumbnailImageView;
          private TextView textViewTitle;
          private TextView textViewTitleDesc;
          private TextView textViewDesc;
          private TextView textViewDescDetails;
          private FrameLayout frameLayout;
  
          private boolean state = true;
  
          private YouTubePlayerSupportFragment youTubePlayerFragment;
          private YouTubePlayer youTubePlayer;
  
          public YoutubeVideoAdapter(Context context, ArrayList<TaskEntry> youtubeVideoModelArrayList) {
              this.context = context;
              this.youtubeVideoModelArrayList = youtubeVideoModelArrayList;
          }
  
          @Override
          public YoutubeViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
              LayoutInflater layoutInflater = LayoutInflater.from(parent.getContext());
              View view = layoutInflater.inflate(R.layout.youtube_video_custom_layout, parent, false);
  
              return new YoutubeViewHolder(view);
          }
  
          @Override
          public void onBindViewHolder(YoutubeViewHolder holder, final int position) {
  
              //intiliase the elements of the card view
              textViewTitleDesc.setText(youtubeVideoModelArrayList.get(position).getTitle());
  
              textViewDescDetails.setText(youtubeVideoModelArrayList.get(position).getDescription());
  
              FragmentManager fragmentManager = ((FragmentActivity) context).getSupportFragmentManager();
  
              int newConatainerId = getUniqueId();
  
              frameLayout.setId(newConatainerId);
  
              youTubePlayerFragment = YouTubePlayerSupportFragment.newInstance();
  
              String videoId = youtubeVideoModelArrayList.get(position).getVideoId();
  
              if (youTubePlayerFragment == null)
                  return;
  
              youTubePlayerFragment.initialize(API_KEY, new YouTubePlayer.OnInitializedListener() {
  
                  @Override
                  public void onInitializationSuccess(YouTubePlayer.Provider provider, YouTubePlayer player,
                                                      boolean wasRestored) {
                      if (!wasRestored) {
                          youTubePlayer = player;
  
                          //set the player style default
                          youTubePlayer.setPlayerStyle(YouTubePlayer.PlayerStyle.DEFAULT);
  
                          //cue the 1st video by default
                          youTubePlayer.cueVideo(youtubeVideoModelArrayList.get(position).getVideoId());
                      }
                  }
  
                  @Override
                  public void onInitializationFailure(YouTubePlayer.Provider arg0, YouTubeInitializationResult arg1) {
  
                      //print or show error if initialization failed
                      Log.e(TAG, "Youtube Player View initialization failed");
                  }
              });
  
              fragmentManager.beginTransaction().add(newConatainerId,youTubePlayerFragment).addToBackStack(null).commit();
  
          }
  
          // Method that could us an unique id
          public int getUniqueId(){
              return (int)SystemClock.currentThreadTimeMillis();
          }
  
          @Override
          public int getItemCount() {
              return youtubeVideoModelArrayList != null ? youtubeVideoModelArrayList.size() : 0;
          }
  
          /**
           * method the change the selected position when item clicked
           * @param selectedPosition
           */
          public void setSelectedPosition(int selectedPosition) {
              this.selectedPosition = selectedPosition;
              //when item selected notify the adapter
              notifyDataSetChanged();
          }
  
          public class YoutubeViewHolder extends RecyclerView.ViewHolder
          {
              public YoutubeViewHolder(View view)
              {
                  super(view);
                  youtubeCardView = view.findViewById(R.id.youtube_row_card_view);
                  textViewTitle = view.findViewById(R.id.tv_title);
                  textViewTitleDesc = view.findViewById(R.id.tv_title_details);
                  textViewDesc = view.findViewById(R.id.tv_description);
                  textViewDescDetails = view.findViewById(R.id.tv_description_details);
                  frameLayout = (FrameLayout) view.findViewById(R.id.frame_layout);
              }
          }
      }
  
• Inquire about the retrieval of the firebase DB works

  Let's imagine "posts" contains 5000 posts inside it. When I retrieve data from my Database on Firebase on RecyclerView with the condition orderByChild, has all the data (the 5000 posts) been called or just a fraction (like 15 posts)? For instance, when I scroll down does it call another 15 posts?
• in a fragment call a adapter class but nothing happen

  Im trying to call a recycleview adapter into fragment, but when I click on the icon from my drawer, it just show a blank page.

  And this code is for me to retrieve data from firebase which will only display the Email that equal to getArguments().getString("Email");

  This is my fragment name UserProfile :

  private UserProfileAdapter userProfileAdapter;
  
  private RecyclerView recyclerView;
  private List<User> userList;
  
  private DatabaseReference databaseReference;
  
  
  @Nullable
  @Override
  public View onCreateView(@NonNull LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
      final View view = inflater.inflate(R.layout.user_profile, container,false);
      getActivity().getWindow().setSoftInputMode(WindowManager.LayoutParams.SOFT_INPUT_ADJUST_NOTHING);
  
      recyclerView = (RecyclerView) view.findViewById(R.id.recycler_view);
  
      userList = new ArrayList<>();
      userProfileAdapter = new UserProfileAdapter(getContext(),userList);
  
      recyclerView.setAdapter(userProfileAdapter);
      RecyclerView.LayoutManager layoutManager = new LinearLayoutManager(getActivity());
      recyclerView.setLayoutManager(layoutManager);
  
  
      databaseReference = FirebaseDatabase.getInstance().getReference("User");
  
      String Email = getArguments().getString("Email");
  
      String email = Email.replace(".",",");
  
      Query query = databaseReference.orderByChild("email").equalTo(email);
      query.addChildEventListener(new ChildEventListener() {
          @Override
          public void onChildAdded(@NonNull DataSnapshot dataSnapshot, @Nullable String s) {
  
  
              Toast.makeText(getActivity(),"adadadad",Toast.LENGTH_SHORT).show();
              userList.add(dataSnapshot.getValue(User.class));
              userProfileAdapter.notifyDataSetChanged();
  
          }
  
          @Override
          public void onChildChanged(@NonNull DataSnapshot dataSnapshot, @Nullable String s) {
  
          }
  

  this is my UserProflieAdapter extends :

  RecycleView.Adapter UserProfileAdapter.ImageViewHolder>
  
      private Context mcontext;
      private List<User> muser;
  
      public UserProfileAdapter (Context context, List<User> mUser){
          mcontext = context;
          muser=mUser;
      }
  
      @NonNull
      @Override
      public ImageViewHolder onCreateViewHolder(@NonNull ViewGroup viewGroup, int i) {
  
          View view = LayoutInflater.from(mcontext).inflate(R.layout.user_profile_inflater, viewGroup, false);
          return new ImageViewHolder(view);
      }
  
      @Override
      public void onBindViewHolder(@NonNull UserProfileAdapter.ImageViewHolder imageViewHolder, int position) {
  
              User user = muser.get(position);
              imageViewHolder.tvemail.setText(user.getEmail());
              imageViewHolder.tvname.setText(user.getUsername());
              imageViewHolder.tvpass.setText(user.getPass());
              imageViewHolder.tvconpass.setText(user.getConfirmpassword());
              imageViewHolder.tvphone.setText(user.getPhone());
              imageViewHolder.tvaddress.setText(user.getAddress());
  
              Picasso.with(mcontext)
                      .load(user.getImageUrl())
                      .fit()
                      .centerInside()
                      .into(imageViewHolder.imageView);
  
      }
  
      @Override
      public int getItemCount() {
          return muser.size();
      }
  
      public class ImageViewHolder extends RecyclerView.ViewHolder  implements
              View.OnCreateContextMenuListener{
          public ExtendedEditText tvemail,tvname,tvpass, tvconpass, tvphone, tvaddress;
          public CircleImageView imageView;
  
          public ImageViewHolder(View itemView) {
              super(itemView);
  
              tvemail = itemView.findViewById(R.id.input_email);
              tvname = itemView.findViewById(R.id.input_name);
              tvpass = itemView.findViewById(R.id.input_password);
              tvphone = itemView.findViewById(R.id.input_mobile);
              tvaddress = itemView.findViewById(R.id.input_address);
              tvconpass = itemView.findViewById(R.id.input_reEnterPassword);
              imageView = itemView.findViewById(R.id.image);
  
  
              itemView.setOnCreateContextMenuListener(this);
          }
  
          @Override
          public void onCreateContextMenu(ContextMenu menu, View v, ContextMenu.ContextMenuInfo menuInfo) {
  
          }
  
      }
  

  if you need xml file codes pls tell me
• Validating duplicate entries in a RecyclerView

  I am trying to add the serial number in recycler view by using the add button. need to check whether duplicate value trying to add in recycler view.

  add button Onclick listener code are given below

   serialNumberAddButton.setOnClickListener(new View.OnClickListener() {
          @Override
          public void onClick(View v) {
              if (!serialNumberField.getText().toString().equals("")) {
  
              // here need to check the duplicate values
  
                  SerialNumberPojo serialNumberPojo = new SerialNumberPojo(serialNumberField.getText().toString());
                  serialNumberPojoList.add(serialNumberPojo);
  
                  RecyclerView recyclerView = view.findViewById(R.id.serial_recycle);
                  serialNumberAdapter = new SerialNumberAdapter(serialNumberPojoList, view.getContext(), ScannedDetailsFragment.this);
  
                  actualQuantity.setText(String.valueOf(serialNumberAdapter.getItemCount()));
                  mLayoutManager = new LinearLayoutManager(view.getContext());
                  recyclerView.setLayoutManager(mLayoutManager);
                  recyclerView.setItemAnimator(new DefaultItemAnimator());
                  recyclerView.setHasFixedSize(true);
                  recyclerView.setAdapter(serialNumberAdapter);
                  serialNumberAdapter.notifyDataSetChanged();
  
  
  
              } else {
                  messageDialog.showAlertDialogBox(getContext(), "Add or Scan Serial Number", "error");
              }
          }
      });
  
• Search Exact String from arraylist in android

  I have arraylist in that i have added filterable to my arraylist. when i search sequentially it gives proper result. let say my string is String demo="I am Android Developer"

  When i search i am android i t gives exact result but if i searched

  "developer android" it not gives me correct result please help me. My adapter for search

  import android.content.Context;
  import android.content.Intent;
  import android.support.v7.widget.RecyclerView;
  import android.view.LayoutInflater;
  import android.view.View;
  import android.view.ViewGroup;
  import android.widget.Filter;
  import android.widget.Filterable;
  import android.widget.LinearLayout;
  import android.widget.TextView;
  
  import com.sonal.mindwerx.Functions.Functions;
  import com.sonal.mindwerx.Item.SearchModel;
  import com.sonal.mindwerx.R;
  import com.sonal.mindwerx.SearchDisplay;
  
  import java.util.ArrayList;
  import java.util.HashSet;
  import java.util.Iterator;
  import java.util.List;
  
  
  public class SearchAdapter extends RecyclerView.Adapter<SearchAdapter.MyViewHolder> implements Filterable {
      ArrayList<SearchModel> filterList;
      private List<SearchModel> searchlist;
      private Context context;
      String mSearchText = "";
  
      public class MyViewHolder extends RecyclerView.ViewHolder {
  
  
          public TextView tv_name_search, tv_code_search;
          public LinearLayout ll_search_item;
  
          public MyViewHolder(View view) {
              super(view);
  
              tv_name_search = (TextView) view.findViewById(R.id.tv_name_search);
              tv_code_search = (TextView) view.findViewById(R.id.tv_code_search);
              ll_search_item = (LinearLayout) view.findViewById(R.id.ll_search_item);
  
          }
      }
  
  
      public SearchAdapter(Context context, ArrayList<SearchModel> searchlist) {
          this.context = context;
          this.searchlist = searchlist;
          this.filterList = searchlist;
      }
  
      @Override
      public MyViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
          View itemView = LayoutInflater.from(parent.getContext())
                  .inflate(R.layout.search_item, parent, false);
          return new MyViewHolder(itemView);
      }
  
      @Override
      public void onBindViewHolder(final MyViewHolder holder, int position) {
          final SearchModel searchModel = searchlist.get(position);
          holder.tv_name_search.setText(searchModel.getName());
          holder.tv_code_search.setText(searchModel.getCode());
  
          holder.ll_search_item.setOnClickListener(new View.OnClickListener() {
              @Override
              public void onClick(View v) {
                  Intent intent = new Intent(context, SearchDisplay.class);
                  intent.putExtra("sonalcode", searchModel.getCode());
                  String rate = searchModel.getRate();
                  intent.putExtra("rate", searchModel.getRate());
                  intent.putExtra("productid", searchModel.getProductid());
                  intent.putExtra("brandid", searchModel.getBrandid());
                  context.startActivity(intent);
              }
          });
      }
  
      @Override
      public int getItemCount() {
          return searchlist.size();
      }
  
      CustomFilter filter;
  
  
      @Override
      public Filter getFilter() {
          if (filter == null) {
              filter = new CustomFilter();
          }
          return filter;
      }
  
  
      class CustomFilter extends Filter {
          @Override
          protected FilterResults performFiltering(CharSequence constraint) {
              // TODO Auto-generated method stub
              FilterResults results = new FilterResults();
              if (constraint != null && constraint.length() > 0) {
                  //CONSTARINT TO UPPER
                  constraint = constraint.toString().toLowerCase();
  
                  ArrayList<SearchModel> filters = new ArrayList<SearchModel>();
                  String[] separated = constraint.toString().toLowerCase().split(" ");
                  //get specific items
                  for (int i = 0; i < filterList.size(); i++) {
                      for (int j = 0; j < separated.length; j++) {
  
                          if (filterList.get(i).getName().toLowerCase().contains(separated[j]) || filterList.get(i).getCode().toLowerCase().contains(separated[j])) {
                              SearchModel p = new SearchModel(filterList.get(i).getBrandid(), filterList.get(i).getProductid(), filterList.get(i).getRate(), filterList.get(i).getImage(), filterList.get(i).getName(), filterList.get(i).getCode());
                              filters.add(p);
                              break;
                          }
                      }
                  }
                  results.count = filters.size();
                  results.values = filters;
              } else {
                  results.count = filterList.size();
                  results.values = filterList;
              }
  
              return results;
          }
  
          @Override
          protected void publishResults(CharSequence constraint, FilterResults results) {
              // TODO Auto-generated method stub
              searchlist = (ArrayList<SearchModel>) results.values;
              notifyDataSetChanged();
          }
      }
  
  
  }