last updated v1.1

Author: cs-joy

AUBLibrary/app/src/main/java/com/tss/aublibrary/AllBooksActivity.java

@@ -19,7 +19,7 @@ protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
         setContentView(R.layout.activity_all_books);
 
-        adapter = new BookRecViewAdapter(this);
+        adapter = new BookRecViewAdapter(this, "allBooks");
         booksRecView = findViewById(R.id.booksRecView);
 
         booksRecView.setAdapter(adapter);

AUBLibrary/app/src/main/java/com/tss/aublibrary/AlreadyReadBookActivity.java

@@ -18,7 +18,7 @@ protected void onCreate(Bundle savedInstanceState) {
         RecyclerView recyclerView = findViewById(R.id.bookRecView);
 
         // create adapter
-        BookRecViewAdapter bookRecViewAdapter = new BookRecViewAdapter(this);
+        BookRecViewAdapter bookRecViewAdapter = new BookRecViewAdapter(this, "alreadyReadBook");
 
         // set adapter
         recyclerView.setAdapter(bookRecViewAdapter);

AUBLibrary/app/src/main/java/com/tss/aublibrary/BookRecViewAdapter.java

@@ -4,17 +4,20 @@
 
 import android.annotation.SuppressLint;
 import android.content.Context;
+import android.content.DialogInterface;
 import android.content.Intent;
 import android.util.Log;
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewGroup;
+import android.widget.Button;
 import android.widget.ImageView;
 import android.widget.RelativeLayout;
 import android.widget.TextView;
 import android.widget.Toast;
 
 import androidx.annotation.NonNull;
+import androidx.appcompat.app.AlertDialog;
 import androidx.cardview.widget.CardView;
 import androidx.recyclerview.widget.RecyclerView;
 import androidx.transition.TransitionManager;
@@ -29,9 +32,11 @@ public class BookRecViewAdapter extends RecyclerView.Adapter<BookRecViewAdapter.
 
     private ArrayList<Book> books = new ArrayList<>();
     private Context mContext;
+    private String parentActivity;
 
-    public BookRecViewAdapter(Context mContext) {
+    public BookRecViewAdapter(Context mContext, String parentActivity) {
         this.mContext = mContext;
+        this.parentActivity = parentActivity;
     }
 
     @NonNull
@@ -70,6 +75,127 @@ public void onClick(View v) {
             TransitionManager.beginDelayedTransition(holder.parent);
             holder.expandedRelLayout.setVisibility(View.VISIBLE);
             holder.downArrow.setVisibility(View.GONE);
+            String removedBookName = books.get(position).getName();
+
+            if (parentActivity.equals("allBooks")) {
+                holder.btnDelete.setVisibility(View.GONE);
+            } else if (parentActivity.equals("alreadyReadBook")) {
+                holder.btnDelete.setVisibility(View.VISIBLE);
+//                String removedBookName = books.get(position).getName();
+                holder.btnDelete.setOnClickListener(new View.OnClickListener() {
+                    @Override
+                    public void onClick(View v) {
+                        AlertDialog.Builder builder = new AlertDialog.Builder(mContext);
+                        builder.setMessage("Are you sure you want to delete " + removedBookName);
+                        builder.setPositiveButton("Yes", new DialogInterface.OnClickListener() {
+                            @Override
+                            public void onClick(DialogInterface dialog, int which) {
+                                if (Utils.getInstance().removeFromAlreadyRead(books.get(position))) {
+                                    Toast.makeText(mContext, removedBookName + " Removed!", Toast.LENGTH_SHORT).show();
+                                    notifyDataSetChanged();
+                                } else {
+                                    Toast.makeText(mContext, "Something wrong happened,\nPlease try again!", Toast.LENGTH_SHORT).show();
+                                }
+                            }
+                        });
+                        builder.setNegativeButton("No", new DialogInterface.OnClickListener() {
+                            @Override
+                            public void onClick(DialogInterface dialog, int which) {
+                                //
+                            }
+                        });
+
+                        builder.create().show();
+                    }
+                });
+            } else if (parentActivity.equals("wantToReadBooks")) {
+                holder.btnDelete.setVisibility(View.VISIBLE);
+//                String removedBookName = books.get(position).getName();
+                holder.btnDelete.setOnClickListener(new View.OnClickListener() {
+                    @Override
+                    public void onClick(View v) {
+                        AlertDialog.Builder builder = new AlertDialog.Builder(mContext);
+                        builder.setMessage("Are you sure you want to delete " + removedBookName);
+                        builder.setPositiveButton("Yes", new DialogInterface.OnClickListener() {
+                            @Override
+                            public void onClick(DialogInterface dialog, int which) {
+                                if (Utils.getInstance().removeFromWantToRead(books.get(position))) {
+                                    Toast.makeText(mContext, removedBookName + " Removed!", Toast.LENGTH_SHORT).show();
+                                    notifyDataSetChanged();
+                                } else {
+                                    Toast.makeText(mContext, "Something wrong happened,\nPlease try again!", Toast.LENGTH_SHORT).show();
+                                }
+                            }
+                        });
+                        builder.setNegativeButton("No", new DialogInterface.OnClickListener() {
+                            @Override
+                            public void onClick(DialogInterface dialog, int which) {
+                                //
+                            }
+                        });
+
+                        builder.create().show();
+                    }
+                });
+            } else if (parentActivity.equals(("currentlyReadingBooks"))) {
+                holder.btnDelete.setVisibility(View.VISIBLE);
+//                String removedBookName = books.get(position).getName();
+                holder.btnDelete.setOnClickListener(new View.OnClickListener() {
+                    @Override
+                    public void onClick(View v) {
+                        AlertDialog.Builder builder = new AlertDialog.Builder(mContext);
+                        builder.setMessage("Are you sure you want to delete " + removedBookName);
+                        builder.setPositiveButton("Yes", new DialogInterface.OnClickListener() {
+                            @Override
+                            public void onClick(DialogInterface dialog, int which) {
+                                if (Utils.getInstance().removeFromCurrentlyReading(books.get(position))) {
+                                    Toast.makeText(mContext, removedBookName + " Removed!", Toast.LENGTH_SHORT).show();
+                                    notifyDataSetChanged();
+                                } else {
+                                    Toast.makeText(mContext, "Something wrong happened,\nPlease try again!", Toast.LENGTH_SHORT).show();
+                                }
+                            }
+                        });
+                        builder.setNegativeButton("No", new DialogInterface.OnClickListener() {
+                            @Override
+                            public void onClick(DialogInterface dialog, int which) {
+                                //
+                            }
+                        });
+
+                        builder.create().show();
+                    }
+                });
+            } else {
+                holder.btnDelete.setVisibility(View.VISIBLE);
+//                String removedBookName = books.get(position).getName();
+                holder.btnDelete.setOnClickListener(new View.OnClickListener() {
+                    @Override
+                    public void onClick(View v) {
+                        AlertDialog.Builder builder = new AlertDialog.Builder(mContext);
+                        builder.setMessage("Are you sure you want to delete " + removedBookName);
+                        builder.setPositiveButton("Yes", new DialogInterface.OnClickListener() {
+                            @Override
+                            public void onClick(DialogInterface dialog, int which) {
+                                if (Utils.getInstance().removeFromFavourite(books.get(position))) {
+                                    Toast.makeText(mContext, removedBookName + " Removed!", Toast.LENGTH_SHORT).show();
+                                    notifyDataSetChanged();
+                                } else {
+                                    Toast.makeText(mContext, "Something wrong happened,\nPlease try again!", Toast.LENGTH_SHORT).show();
+                                }
+                            }
+                        });
+                        builder.setNegativeButton("No", new DialogInterface.OnClickListener() {
+                            @Override
+                            public void onClick(DialogInterface dialog, int which) {
+                                //
+                            }
+                        });
+
+                        builder.create().show();
+                    }
+                });
+            }
         } else {
             TransitionManager.beginDelayedTransition(holder.parent);
             holder.expandedRelLayout.setVisibility(View.GONE);
@@ -95,6 +221,7 @@ public class ViewHolder extends RecyclerView.ViewHolder {
         private ImageView downArrow, upArrow;
         private RelativeLayout expandedRelLayout;
         private TextView txtAuthor, txtDescription;
+        private TextView btnDelete;
 
         public ViewHolder(@NonNull View itemView) {
             super(itemView);
@@ -109,6 +236,7 @@ public ViewHolder(@NonNull View itemView) {
             expandedRelLayout = itemView.findViewById(R.id.expandedRelLayout);
             txtAuthor = itemView.findViewById(R.id.txtAuthor);
             txtDescription = itemView.findViewById(R.id.shortDesc);
+            btnDelete = itemView.findViewById(R.id.btnDelete);
 
             // set click listener
             downArrow.setOnClickListener(new View.OnClickListener() {

AUBLibrary/app/src/main/java/com/tss/aublibrary/CurrentlyReadingBookActivity.java

@@ -18,7 +18,7 @@ protected void onCreate(Bundle savedInstanceState) {
         RecyclerView recyclerView = findViewById(R.id.currentlyReadingBookRecView);
 
         // create adapter
-        BookRecViewAdapter bookRecViewAdapter = new BookRecViewAdapter(this);
+        BookRecViewAdapter bookRecViewAdapter = new BookRecViewAdapter(this, "currentlyReadingBooks");
 
         // set adapter
         recyclerView.setAdapter(bookRecViewAdapter);

AUBLibrary/app/src/main/java/com/tss/aublibrary/FavoriteActivity.java

@@ -18,7 +18,7 @@ protected void onCreate(Bundle savedInstanceState) {
         RecyclerView recyclerView = findViewById(R.id.favBookRecView);
 
         // create adapter
-        BookRecViewAdapter bookRecViewAdapter = new BookRecViewAdapter(this);
+        BookRecViewAdapter bookRecViewAdapter = new BookRecViewAdapter(this, "favoriteBooks");
 
         // set adapter
         recyclerView.setAdapter(bookRecViewAdapter);

AUBLibrary/app/src/main/java/com/tss/aublibrary/Utils.java

@@ -99,4 +99,20 @@ public boolean addToFavorite(Book book) {
     public boolean addCurrentlyReading(Book book) {
         return currentlyReadingBooks.add(book);
     }
+
+    public boolean removeFromAlreadyRead(Book book) {
+        return alreadyReadBook.remove(book);
+    }
+
+    public boolean removeFromWantToRead(Book book) {
+        return wantToReadBooks.remove(book);
+    }
+
+    public boolean removeFromCurrentlyReading(Book book) {
+        return currentlyReadingBooks.remove(book);
+    }
+
+    public boolean removeFromFavourite(Book book) {
+        return favoriteBooks.remove(book);
+    }
 }

AUBLibrary/app/src/main/java/com/tss/aublibrary/WantToReadActivity.java

@@ -18,7 +18,7 @@ protected void onCreate(Bundle savedInstanceState) {
         RecyclerView recyclerView = findViewById(R.id.booksRecView);
 
         // create adapter
-        BookRecViewAdapter bookRecViewAdapter = new BookRecViewAdapter(this);
+        BookRecViewAdapter bookRecViewAdapter = new BookRecViewAdapter(this, "wantToReadBooks");
 
         // set adapter
         recyclerView.setAdapter(bookRecViewAdapter);

AUBLibrary/app/src/main/res/layout/list_item_book.xml

@@ -81,6 +81,17 @@
                 android:layout_alignParentRight="true"
                 android:id="@+id/btnUpArrow"/>
 
+            <TextView
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:text="Delete"
+                android:layout_below="@id/shortDesc"
+                android:layout_toStartOf="@id/btnUpArrow"
+                android:layout_marginEnd="7dp"
+                android:textColor="@color/remv_red"
+                android:id="@+id/btnDelete"
+                android:visibility="gone"/>
+
         </RelativeLayout>
 
     </RelativeLayout>

AUBLibrary/app/src/main/res/values/colors.xml

@@ -9,4 +9,5 @@
     <color name="white">#FFFFFFFF</color>
 
     <color name="_aub_green">#3b7e5f</color>
+    <color name="remv_red">#ED0707</color>
 </resources>

FaceDetection/app/src/main/java/com/tss/facedetection/MainActivity.java

@@ -145,7 +145,7 @@ public void onActivityResult(int requestCode, int resultCode, Intent data) {
             // SELECT_PICTURE constant
             if (requestCode == SELECT_PICTURE) {
                 // Get the url of the image from data
-                Uri selectedImageUri = data.getData();
+                Uri selectedImageUri = data.getData(); // TODO: maybe Uri need to be removed from this statement
                 if (null != selectedImageUri) {
                     // update the preview image in the layout
                     IVPreviewImage.setImageURI(selectedImageUri);