CODEWITHSUNDEEP
androidmysqlgetretrofitretrofit2
Anonymous Cardinal
Anonymous Cardinal

Reputation: 41

How to return String from onResponse? Retrofit android studio

I've seen a few similar questions but they don't seem to answer my problem exactly. I've got a method that is supposed to return a string. I am using retrofit, but in onresponse, I can't return a string? Below is the code.

public String getInformation(String information, String username) {

       

        String result;
        Call<DefaultResponse> call = RetrofitClient.getInstance().getApi().getInformation(information,username);

        call.enqueue(new Callback<DefaultResponse>() {
            @Override
            public void onResponse(Call<DefaultResponse> call, Response<DefaultResponse> response) {
                 result = response.body().getMsg();
            }

            @Override
            public void onFailure(Call<DefaultResponse> call, Throwable t) {

            }

        });
        
        return result;



    }

Upvotes: 0

Views: 981

Answers (2)

Umesh Bhatnagar
Umesh Bhatnagar

Reputation: 1

You can use Result as output String wherever you want, as I used it in my adapter class in onBindViewHolder method, simply making object of the class from which string was sent and then calling the method (in which Interface was kept as parameter) & override success and failure method in adapter class and do whatever u want to do with this string......... Thanks a lot @y.allam & @Anonymous Cardinal :):)

Upvotes: 0

y.allam
y.allam

Reputation: 1516

The .enqueue method will take time to get the response, so your method will return before onResponse callback gets called.

Try using a callback approach for getInformation method and make it void:

public void getInformation(String information, String username, MyCallback callback) {

        Call<DefaultResponse> call = RetrofitClient.getInstance().getApi().getInformation(information,username);

        call.enqueue(new Callback<DefaultResponse>() {
            @Override
            public void onResponse(Call<DefaultResponse> call, Response<DefaultResponse> response) {
                 result = response.body().getMsg();
                 callback.success(result);
            }

            @Override
            public void onFailure(Call<DefaultResponse> call, Throwable t) {
                 callback.failure(t)
            }

        });
}

With the MyCallback interface:

interface MyCallback {
    void success(String result);
    void failure(Throwable t);
}

Then you can call the method like this:

getInformation("Information", "Username", new MyCallback() {
            @Override
            public void success(String result) {
                // Use result
            }

            @Override
            public void failure(Throwable t) {
                // Display error
            }

        });

Upvotes: 2

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