открытый класс SellerAddProductActivity расширяет AppCompatActivity {
private String saveCurrentDate;
private String saveCurrentTime;
private String CategoryName;
private String downloadImageUrl;
private String productRandomKey;
private String Description;
private String Price, Quantity, State;
private String Pname, Store;
private Button AddProductButton;
private EditText InputProductName;
private EditText InputProductPrice, InputStoreName;
private EditText InputProductDescription, InputProductQauntity, InputProductState;
private StorageReference ProductImageRef;
private Uri ImageUri;
private DatabaseReference ProductsRef, ProductsInfo;
private ProgressDialog loadingBar;
private static final int GalleryPick = 1;
private ImageView InputProductImage;
FirebaseUser currentUser;
FirebaseUser mAuth;
String userID = mAuth.getUid(); //--> Store each seller name with this ID
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_seller_add_product);
ProductImageRef = FirebaseStorage.getInstance().getReference().child("Product Images");
CategoryName = getIntent().getExtras().get("category").toString();
ProductsRef = FirebaseDatabase.getInstance().getReference().child("Products");
ProductsInfo = FirebaseDatabase.getInstance().getReference().child("ProductsInfo");
mAuth = FirebaseAuth.getInstance().getCurrentUser();
AddProductButton = (Button) findViewById(R.id.add_product);
InputProductName = (EditText) findViewById(R.id.product_name);
InputProductImage = (ImageView) findViewById(R.id.product_image_select);
InputProductPrice = (EditText) findViewById(R.id.product_price);
InputProductQauntity = (EditText) findViewById(R.id.product_quantity);
InputProductState = (EditText) findViewById(R.id.product_state);
InputStoreName = (EditText) findViewById(R.id.store_name);
loadingBar = new ProgressDialog(this);
InputProductDescription = (EditText) findViewById(R.id.product_description);
InputProductImage.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
OpenGallery();
}
});
AddProductButton.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
validateProductData();
}
});
}
private void OpenGallery() {
Intent galleryIntent = new Intent();
galleryIntent.setAction(Intent.ACTION_GET_CONTENT);
galleryIntent.setType("image/*");
startActivityForResult(galleryIntent, GalleryPick);
}
@Override
protected void onActivityResult
(int requestCode, int resultCode, @Nullable Intent data) {
super.onActivityResult(requestCode, resultCode, data);
if (requestCode == GalleryPick && resultCode == RESULT_OK && data != null) {
ImageUri = data.getData();
InputProductImage.setImageURI(ImageUri);
}
}
private void validateProductData() {
Description = InputProductDescription.getText().toString();
Price = InputProductPrice.getText().toString();
Pname = InputProductName.getText().toString();
Quantity = InputProductQauntity.getText().toString();
State = InputProductState.getText().toString();
Store = InputStoreName.getText().toString();
if (ImageUri == null) {
Toast.makeText(this, "Please Add Product Image!", Toast.LENGTH_SHORT).show();
} else if (TextUtils.isEmpty(Description)) {
Toast.makeText(this, "Please Enter the Product Description!", Toast.LENGTH_SHORT).show();
} else if (TextUtils.isEmpty(Price)) {
Toast.makeText(this, "Please Enter the Product Price!", Toast.LENGTH_SHORT).show();
} else if (TextUtils.isEmpty(Pname)) {
Toast.makeText(this, "Please Enter the Product Name!", Toast.LENGTH_SHORT).show();
} else if (TextUtils.isEmpty(Quantity)) {
Toast.makeText(this, "Enter Quantity in Number!", Toast.LENGTH_SHORT).show();
} else if (TextUtils.isEmpty(State)) {
Toast.makeText(this, "Specify the State of your Product!", Toast.LENGTH_SHORT).show();
} else if (TextUtils.isEmpty(Store)) {
Toast.makeText(this, "Store Name is Mandatory!", Toast.LENGTH_SHORT).show();
} else {
StoreProductInfo();
}
}
private void StoreProductInfo() {
loadingBar.setTitle("Adding Product");
loadingBar.setMessage("Please wait!");
loadingBar.setCanceledOnTouchOutside(false);
loadingBar.show();
Calendar calendar = Calendar.getInstance();
SimpleDateFormat currentDate = new SimpleDateFormat("MMM dd, yyyy");
saveCurrentDate = currentDate.format(calendar.getTime());
SimpleDateFormat currentTime = new SimpleDateFormat("HH:mm:ss a");
saveCurrentTime = currentTime.format(calendar.getTime());
// Unique Random Key for the Products added by the admin
productRandomKey = saveCurrentDate + saveCurrentTime;
// Unique Random Key to store the image added by the admin
final StorageReference filePath = ProductImageRef.
child(ImageUri.getLastPathSegment() + productRandomKey + ".jpg");
final UploadTask uploadTask = filePath.putFile(ImageUri);
//Displaying the Upload Error to the seller
uploadTask.addOnFailureListener(new OnFailureListener() {
@Override
public void onFailure(@NonNull Exception e) {
String message = e.toString();
Toast.makeText(SellerAddProductActivity.this, "Error: " + message, Toast.LENGTH_SHORT).show();
loadingBar.dismiss();
}
}).addOnSuccessListener(new OnSuccessListener<UploadTask.TaskSnapshot>() {
@Override
public void onSuccess(UploadTask.TaskSnapshot taskSnapshot) {
Toast.makeText(SellerAddProductActivity.this, "Image Uploaded!", Toast.LENGTH_SHORT).show();
Task<Uri> uriTask = uploadTask.continueWithTask(new Continuation<UploadTask.TaskSnapshot, Task<Uri>>() {
@Override
public Task<Uri> then(@NonNull Task<UploadTask.TaskSnapshot> task) throws Exception {
if (!task.isSuccessful()) {
throw task.getException();
}
downloadImageUrl = filePath.getDownloadUrl().toString();
return filePath.getDownloadUrl();
}
}).addOnCompleteListener(new OnCompleteListener<Uri>() {
@Override
public void onComplete(@NonNull Task<Uri> task) {
if (task.isSuccessful()) {
downloadImageUrl = task.getResult().toString();
Toast.makeText(SellerAddProductActivity.this, "Product Image Added",
Toast.LENGTH_SHORT) .show ();
SaveProductInfoToDatabase();
}
}
});
}
});
}
private void SaveProductInfoToDatabase() {
HashMap<String, Object> productMap = new HashMap<>();
productMap.put("pid", productRandomKey);
productMap.put("storename", Store);
productMap.put("date", saveCurrentDate);
productMap.put("time", saveCurrentTime);
productMap.put("description", Description);
productMap.put("image", downloadImageUrl);
productMap.put("Category", CategoryName);
productMap.put("state", State);
productMap.put("quantity", Quantity);
productMap.put("price", Price);
productMap.put("pname", Pname);
ProductsRef.child("Products").child(userID).child(productRandomKey);
ProductsInfo.child(productRandomKey).updateChildren(productMap)
.addOnCompleteListener(new OnCompleteListener<Void>() {
@Override
public void onComplete(@NonNull Task<Void> task) {
if (task.isSuccessful()) {
Intent intent = new Intent(SellerAddProductActivity.this, SellerAddProductActivity.class);
startActivity(intent);
loadingBar.dismiss();
Toast.makeText(SellerAddProductActivity.this, "Product
Добавлено», Toast.LENGTH_SHORT) .show ();
} еще {
loadingBar.dismiss ();
String message = task.getException (). ToString ();
Toast.makeText (SellerAddProductActivity.this,
"Ошибка:" + сообщение, Toast.LENGTH_SHORT) .show ();
}
}
});
}}
открытый класс HomeActivity расширяет возможности AppCompatActivity
NavigationView.OnNavigationItemSelectedListener {
private DatabaseReference productsRef;
private RecyclerView recyclerView;
RecyclerView.LayoutManager layoutManager;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_home);
productsRef = FirebaseDatabase.getInstance().getReference().child("Products");
recyclerView = findViewById(R.id.recycler_menu);
recyclerView.setHasFixedSize(true);
layoutManager = new LinearLayoutManager(this);
recyclerView.setLayoutManager(layoutManager);
}
@Override
protected void onStart() {
super.onStart();
FirebaseRecyclerOptions<Products> options =
new FirebaseRecyclerOptions.Builder<Products>()
.setQuery(productsRef, Products.class).build();
FirebaseRecyclerAdapter<Products, ProductsViewHolder> adapter
= new FirebaseRecyclerAdapter<Products, ProductsViewHolder>(options) {
@Override
protected void onBindViewHolder(@NonNull ProductsViewHolder holder,int position,@NonNull final Products model){
holder.txtProductName.setText(model.getPname());
holder.txtProductPrice.setText("Price " + model.getPrice() + "$");
Picasso.get().load(model.getImage()).into(holder.imageView);
//sending the product ID to the ProductDetailsActivity
holder.itemView.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Intent intent = new Intent(HomeActivity.this, ProductDetailsActivity.class);
intent.putExtra("pid", model.getPid());
startActivity(intent);
}
});
}
@NonNull
@Override
public ProductsViewHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {
View view = LayoutInflater.from(parent.getContext()).inflate(R.layout.layout_products,parent,false);
ProductsViewHolder holder = new ProductsViewHolder(view);
return holder;
}
};
GridLayoutManager gridLayoutManager = new GridLayoutManager(getApplicationContext(), 2);
recyclerView.setLayoutManager(gridLayoutManager);
adapter.startListening();
recyclerView.setAdapter(adapter);
}