How to Build a ChatGPT Like Image Generator Application in Android? (original) (raw)
Last Updated : 23 Jul, 2025
Chat GPT is nowadays one of the famous AI tools which are like a chatbot. This chatbot answers all the queries which are sent to it. In this article, we will be building a simple ChatGPT-like android application in which we will be able to ask any question and from that question, we will be able to get an appropriate response in the form of images within our application.
We have created a sample application we will take a look at its output of it and then we will proceed further to create a new project in android studio.
Step-By-Step Implementation
Step 1: Create a New Project in Android Studio
To create a new project in Android Studio please refer to How to Create/Start a New Project in Android Studio. Note that select Kotlin as the programming language.
Step 2: Add the below dependency in your build.gradle file
Below is the dependency for Volley which we will be using to get the data from API. For adding this dependency navigate to the app > Gradle Scripts > build.gradle(app) and add the below dependency in the dependencies section. We have used the Picasso dependency for image loading from the URL.
// below line is used for volley library and picasso implementation ‘com.android.volley:volley:1.2.0’ implementation 'com.squareup.picasso:picasso:2.8'
After adding this dependency sync your project and now move toward the AndroidManifest.xml part.
Step 3: Adding permissions to the internet in the AndroidManifest.xml file
Navigate to the app > AndroidManifest.xml and add the below code to it.
Step 4: Working with the activity_main.xml file
Navigate to the app > res > layout > activity_main.xml and add the below code to that file. Below is the code for the activity_main.xml file.
XML `
<ScrollView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_above="@id/idTILQuery"
android:layout_alignParentTop="true"
android:layout_margin="5dp"
android:padding="5dp">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
<!-- text view for displaying question-->
<TextView
android:id="@+id/idTVQuestion"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_marginTop="30dp"
android:padding="4dp"
android:text="Question"
android:textAlignment="center"
android:textColor="@color/white"
android:textSize="17sp" />
<!-- Image view for displaying response-->
<ImageView
android:id="@+id/idIVImage"
android:layout_width="match_parent"
android:layout_height="200dp"
android:layout_margin="10dp" />
</LinearLayout>
</ScrollView>
<!-- text field for asking question-->
<com.google.android.material.textfield.TextInputLayout
android:id="@+id/idTILQuery"
style="@style/TextInputLayoutStyle"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:layout_margin="5dp"
android:hint="Enter your query to generate image"
android:padding="5dp"
android:textColorHint="@color/white"
app:hintTextColor="@color/white">
<com.google.android.material.textfield.TextInputEditText
android:id="@+id/idEdtQuery"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="@color/edt_back_color"
android:drawableEnd="@drawable/ic_send"
android:drawableTint="@color/white"
android:ems="10"
android:imeOptions="actionSend"
android:importantForAutofill="no"
android:inputType="textEmailAddress"
android:textColor="@color/white"
android:textColorHint="@color/white"
android:textSize="14sp" />
</com.google.android.material.textfield.TextInputLayout>`
Step 5: Generating bearer token for using the API.
Navigate to the below URL and simply sign up with your email and password. On this screen click on Create a new secret key to generate your new key. Once your key is generated that we have to use it as a token for making our API key.
Step 6: Working with MainActivity.kt file.
Navigate to app > java > your app's package name > MainActivity.kt file and add the below code to it. Comments are added in the code to get to know it in detail.
Kotlin `
import android.R.attr import android.annotation.SuppressLint import android.app.StatusBarManager import android.content.ComponentName import android.content.Context import android.content.Intent import android.content.pm.PackageManager import android.graphics.drawable.Icon import android.net.Uri import android.net.wifi.WifiManager import android.os.Build import android.os.Bundle import android.provider.MediaStore import android.util.Log import android.view.inputmethod.EditorInfo import android.widget.Button import android.widget.ImageView import android.widget.TextView import android.widget.Toast import androidx.activity.result.ActivityResultLauncher import androidx.activity.result.contract.ActivityResultContracts import androidx.appcompat.app.AppCompatActivity import androidx.core.content.ContextCompat import com.android.volley.RequestQueue import com.android.volley.Response import com.android.volley.RetryPolicy import com.android.volley.VolleyError import com.android.volley.toolbox.JsonObjectRequest import com.android.volley.toolbox.Volley import com.google.android.material.dialog.MaterialAlertDialogBuilder import com.google.android.material.textfield.TextInputEditText import com.squareup.picasso.Picasso import org.json.JSONObject import java.util.jar.Manifest
class MainActivity : AppCompatActivity() {
// creating variables on below line.
lateinit var imageIV: ImageView
lateinit var questionTV: TextView
lateinit var queryEdt: TextInputEditText
var url = "https://api.openai.com/v1/images/generations"
override fun onCreate(savedInstanceState: Bundle?) {
super.onCreate(savedInstanceState)
setContentView(R.layout.activity_main)
// initializing variables on below line.
imageIV = findViewById(R.id.idIVImage)
questionTV = findViewById(R.id.idTVQuestion)
queryEdt = findViewById(R.id.idEdtQuery)
// adding editor action listener for edit text on below line.
queryEdt.setOnEditorActionListener(TextView.OnEditorActionListener { v, actionId, event ->
if (actionId == EditorInfo.IME_ACTION_SEND) {
// setting response tv on below line.
// validating text
if (queryEdt.text.toString().length > 0) {
// calling get response to get the response.
getResponse(queryEdt.text.toString())
} else {
Toast.makeText(this, "Please enter your query..", Toast.LENGTH_SHORT).show()
}
return@OnEditorActionListener true
}
false
})
}
private fun getResponse(query: String) {
// setting text on for question on below line.
questionTV.text = query
queryEdt.setText("")
// creating a queue for request queue.
val queue: RequestQueue = Volley.newRequestQueue(applicationContext)
// creating a json object on below line.
val jsonObject: JSONObject? = JSONObject()
// adding params to json object.
jsonObject?.put("prompt", query)
jsonObject?.put("n", 1)
jsonObject?.put("size", "256x256")
// on below line making json object request.
val postRequest: JsonObjectRequest =
// on below line making json object request.
object : JsonObjectRequest(Method.POST, url, jsonObject,
Response.Listener { response ->
// on below line getting response message and setting it to image view.
var imageURL: String =
response.getJSONArray("data").getJSONObject(0).getString("url")
imageURL = imageURL.replace("\\", "");
// using picasso to load image from url in image view
Picasso.get().load(imageURL).into(imageIV)
},
// adding on error listener
Response.ErrorListener { error ->
Log.e("TAGAPI", "Error is : " + error.message + "\n" + error)
}) {
override fun getHeaders(): kotlin.collections.MutableMap<kotlin.String, kotlin.String> {
val params: MutableMap<String, String> = HashMap()
// adding headers on below line.
params["Content-Type"] = "application/json"
params["Authorization"] =
"Bearer Enter your key"
return params;
}
}
// on below line adding retry policy for our request.
postRequest.setRetryPolicy(object : RetryPolicy {
override fun getCurrentTimeout(): Int {
return 50000
}
override fun getCurrentRetryCount(): Int {
return 50000
}
@Throws(VolleyError::class)
override fun retry(error: VolleyError) {
}
})
// on below line adding our request to queue.
queue.add(postRequest)
}}
`