.

app/src/main/java/com/ssb/simplitend/apputils/AppUtil.java

@@ -1,8 +1,13 @@
 package com.ssb.simplitend.apputils;
 
 import android.app.Activity;
+import android.app.AlertDialog;
+import android.app.ProgressDialog;
 import android.content.Context;
+import android.content.DialogInterface;
+import android.content.SharedPreferences;
 import android.os.Handler;
+import android.util.Log;
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.inputmethod.InputMethodManager;
@@ -18,6 +23,16 @@ import com.ssb.simplitend.databinding.DoneBottomsheetBinding;
 
 public abstract class AppUtil {
 
+    private static final String TAG = "AppUtil";
+
+    // fields
+
+    public static final String USER_DETAILS = "user_details";
+
+    public static final String USER_TOKEN = "user_token";
+
+    // util functions
+
     // closes keyboard
     public static void closeKeyboard(Activity activity){
         if (activity != null){
@@ -88,4 +103,42 @@ public abstract class AppUtil {
         }, doneInterval);
     }
 
+    // Show alert dialog
+    public static synchronized void showAlert(@NonNull Context context,
+                                       @NonNull String title, @NonNull String message,
+                                       @NonNull String positiveText, @NonNull DialogInterface.OnClickListener positiveClickListener,
+                                       String negativeText, DialogInterface.OnClickListener negativeClickListener) {
+
+        AlertDialog.Builder alertBuilder = new AlertDialog.Builder(context);
+
+        alertBuilder.setTitle(title);
+        alertBuilder.setMessage(message);
+
+        alertBuilder.setPositiveButton(positiveText, positiveClickListener /* Call back*/);
+
+        if (negativeText != null && negativeClickListener != null) {
+            // Negative button
+            alertBuilder.setNegativeButton(negativeText, negativeClickListener);
+        }
+
+        alertBuilder.create().show(); // Showing alert dialog
+    }
+
+    public static void saveToken(String token, Context context){
+        SharedPreferences sp = context.getSharedPreferences(USER_DETAILS, Context.MODE_PRIVATE);
+        SharedPreferences.Editor editor = sp.edit();
+
+        editor.putString(USER_TOKEN, token);
+
+        editor.apply();
+
+        Log.d(TAG, "saveToken: user token saved successful");
+
+    }
+
+    public static String getUserToken(Context context){
+        SharedPreferences sp = context.getSharedPreferences(USER_DETAILS, Context.MODE_PRIVATE);
+        return sp.getString(USER_TOKEN, "");
+    }
+
 }

app/src/main/java/com/ssb/simplitend/apputils/RetrofitHelper.java

@@ -0,0 +1,46 @@
+package com.ssb.simplitend.apputils;
+
+import java.io.IOException;
+
+import okhttp3.Interceptor;
+import okhttp3.OkHttpClient;
+import okhttp3.Request;
+import okhttp3.Response;
+import retrofit2.Retrofit;
+import retrofit2.converter.gson.GsonConverterFactory;
+
+public abstract class RetrofitHelper {
+
+    // urls
+    public static final String BASE_URL = "https://simplitend.betadelivery.com/";
+
+    public static final String REGISTER_PATIENT = "api/auth/patient-register";
+
+    public static final String GET_CONTACT_LIST = "api/patients-contact-list";
+
+    // util functions
+
+    private static Retrofit retrofit;
+
+    public static synchronized Retrofit getRetrofit(){
+        if (retrofit == null){
+            retrofit = new Retrofit.Builder()
+                    .baseUrl(BASE_URL)
+                    .addConverterFactory(GsonConverterFactory.create())
+                    .client(new OkHttpClient.Builder()
+                            .addInterceptor(chain -> {
+                                Request request = chain.request().newBuilder()
+                                        .addHeader("Accept", "*/*")
+                                        .addHeader("Accept-Encoding", "gzip, deflate, br")
+                                        .addHeader("Connection", "keep-alive")
+                                        .addHeader("Content-Type", "multipart/form-data")
+                                        .build();
+                                return chain.proceed(request);
+                            }).build())
+                    .build();
+        }
+
+        return retrofit;
+    }
+
+}