dependencies { implementation 'com.google.android.gms:play-services-tasks:17.0.0' } Task<String> myTask = Tasks.call(Executors.newCachedThreadPool(), new Callable<String>() { @Override public String call() throws Exception { return performNetworkRequest(); } }).addOnSuccessListener(new OnSuccessListener<String>() { @Override public void onSuccess(String result) { } }).addOnFailureListener(new OnFailureListener() { @Override public void onFailure(@NonNull Exception exception) { } }); private void showToast(String message) { Toast.makeText(MainActivity.this, message, Toast.LENGTH_SHORT).show(); }


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