How to pass a string between classes

July 12, 2023

I have a simple question even though I can’t answer it myself.

I have a class which is my Api class with a single which expect a string query parameeter:

public Single<List<Products>> searchProducts(){
        return api.searchProducts();
    }

and I have a Activity class with the data that I need which is searchEt:

String searchData = searchEt.toString();

my question is that how can I pass this searchEt to my Api class which need the String query?

api.searchProducts();

I tried to use interface but I’ve got confused.

>Solution :

In the Api class:

    public Single<List<Products>> searchProducts(String query){
    return api.searchProducts(query);
}

In the Activity class:

String searchData = searchEt.getText().toString();
api.searchProducts(searchData)
   .subscribeOn(Schedulers.io())
   .observeOn(AndroidSchedulers.mainThread())
   .subscribe(new SingleObserver<List<Products>>() {
       @Override
       public void onSubscribe(Disposable d) {
           // Handle the subscription
       }

       @Override
       public void onSuccess(List<Products> products) {
           // Handle the successful response
       }

       @Override
       public void onError(Throwable e) {
           // Handle the error
       }
   });

In the updated code, the searchProducts method in the Api class now accepts a query parameter of type String. You can pass the searchData value from your Activity class to this method when calling it.