Android Studio - Java - API

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Im using OkHttpClient to connect to an API.

Request request = new Request.Builder()
        .url(BPI_ENDPOINT)
        .build();

okHttpClient.newCall(request).enqueue(new Callback() {
    @Override
    public void onFailure(Call call, IOException e) {
        Toast.makeText(Test.this, "Error during BPI loading : "
                + e.getMessage(), Toast.LENGTH_SHORT).show();
    }

    @Override
    public void onResponse(Call call, Response response)
            throws IOException {
       final String body = response.body().string();

       runOnUiThread(new Runnable() {
            @Override
            public void run() {
                parseBpiResponse(body);
            }
        });
    }
});

The parseBpiResponse just displays the data in TextView but the data request from the site takes place only once and in order to get the data again I need to either reopoen the activity or implement a button or swipe-screen etc,

How to call an API request constantly so that the data keeps updating instead of doing it through users input??

you can use Timer class to do a network call periodically

final long period = 0;
new Timer().schedule(new TimerTask() {
@Override
public void run() {
    // do your task here
}
}, 0, period);

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use this code but you should be careful about your activity and views in this code it my lead to nasty exception and memory leaks better thing to do is using live data with Recursion function !

        new Thread(new Runnable() {
        @Override
        public void run() {

            //Checks the life cycle of the activity and if activity was destroyed break the while loop and exits 
            while (true && getLifecycle().getCurrentState() != Lifecycle.State.DESTROYED) {
                okHttpClient.newCall(request).enqueue(new Callback() {
                    @Override
                    public void onFailure(Call call, IOException e) {
                        Toast.makeText(Test.this, "Error during BPI loading : "
                                + e.getMessage(), Toast.LENGTH_SHORT).show();
                    }

                    @Override
                    public void onResponse(Call call, Response response)
                            throws IOException {
                        final String body = response.body().string();

                        runOnUiThread(new Runnable() {
                            @Override
                            public void run() {
                                if (getLifecycle().getCurrentState() != Lifecycle.State.DESTROYED)
                                    parseBpiResponse(body);
                            }
                        });
                    }
                });

                try {
                    //Waits for 1 sec
                    TimeUnit.SECONDS.sleep(1);
                } catch (InterruptedException e) {
                    e.printStackTrace();
                }
            }

        }
    }).start();

Package Index, The official site for Android app developers. Provides the Android SDK tools and API documentation. are some resources to get you started. Android Studio  Terms and Conditions This is the Android Software Development Kit License Agreement 1. Introduction 1.1 The Android Software Development Kit (referred to in the License Agreement as the "SDK" and specifically including the Android system files, packaged APIs, and Google APIs add-ons) is licensed to you subject to the terms of the License Agreement.

Just make a recursive call .for example :

public void callAPI()
    {
        okHttpClient.newCall(request).enqueue(new Callback() {
            @Override
            public void onFailure(Call call, IOException e) {
                Toast.makeText(Test.this, "Error during BPI loading : "
                        + e.getMessage(), Toast.LENGTH_SHORT).show();
            }

            @Override
            public void onResponse(Call call, Response response)
                    throws IOException {
                final String body = response.body().string();

                runOnUiThread(new Runnable() {
                    @Override
                    public void run() {
                        parseBpiResponse(body);
                    }
                });
         **//just use handler/timer or thread to post event after some interval**
                new android.os.Handler().postDelayed(new Runnable() {
                    @Override
                    public void run() {
                        callAPI();
                    }
                },2000);
            }
        });

    }

Also i suggest using Rxjava+Retrofit with OkHttp and use interval function to make it easier .

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Android Developers, Android Studio provides the fastest tools for building apps on every type of code editor that provides code completion for Kotlin, Java, and C/C++ languages. I'm trying to make a POST request to an api that I have created in Visual Studio. The api works, and I finally managed to find some code that allows me to connect to it (and it's not deprecated). The problem is that this code was made for a GET request while I need to make a POST.

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Download Android Studio and SDK tools, Written by Google, the Google API Client Library for Java is a simple, flexible Java The Google Client Library for Java's Android-specific helper classes are  Android Studio SDK 1.2 or later. Android SDK packages for API 23 or later, including the latest versions of Google Repository, Android Support Library and Google Play Services. Access to the internet on your test device. A Google account.