java.lang.NullPointerException: Attempt to invoke virtual method 'long com.example.carpetcatalog.DataBaza.insertYec_product(com.example.carpetcatalog.Models.YecProductForDB)' on a null object reference at com.example.carpetcatalog.MainActivity$4.onResponse(MainActivity.java:374)
public void networkCallbackForProduct() {
Call<List<Yec_product>> productresponse = ApiClient.getRetrofit().create(ApiInterFace.class).getproductfromAPI();
productresponse.enqueue(new Callback<List<Yec_product>>() {
@Override
public void onResponse(Call<List<Yec_product>> call, Response<List<Yec_product>> response) {
if (!response.isSuccessful()) {
Toast.makeText(MainActivity.this, response.code(), Toast.LENGTH_SHORT).show();
}
List<Yec_product> productList = response.body();
for (Yec_product product : productList) {
YecProductForDB yecProductForDB = new YecProductForDB(product.getId(), product.getCode(), product.getName(), product.getImage_url(), product.getPrice(), product.getQuality_id(), product.getRoom_id(), product.getChanged());
long natija=dataBaza.insertYec_product(yecProductForDB);
if (natija==-1){
Toast.makeText(MainActivity.this, "error insert baza product", Toast.LENGTH_SHORT).show();
finish();
}
}
}
@Override
public void onFailure(Call<List<Yec_product>> call, Throwable t) {
Toast.makeText(MainActivity.this, "error" + t.getMessage(), Toast.LENGTH_SHORT).show();
}
});
}
Database classs*******************************
