How to click a camera programmatically in Android?

This example demonstrates how to

Step 1 − Create a new project in Android Studio, go to File? New Project and fill all required details to create a new project.

Step 2 − Add the following code to res/layout/activity_main.xml.

Example

<?xml version="1.0" encoding="utf-8"?> <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"    android:layout_width="match_parent"    android:layout_height="match_parent"    android:padding="4dp"> <TextView    android:layout_width="wrap_content"    android:layout_height="wrap_content"    android:layout_above="@id/imageView"    android:layout_centerInParent="true"    android:layout_marginBottom="10dp"    android:text="Click the below button to take photo from camera"    android:textAlignment="center"    android:textColor="@android:color/holo_purple"    android:textSize="16sp"    android:textStyle="bold" /> <ImageView    android:id="@+id/imageView"    android:layout_width="match_parent"    android:layout_height="630dp"    android:layout_above="@id/btnCaptureImage"    android:layout_marginTop="16dp"    android:scaleType="centerCrop"    android:src="@drawable/ic_baseline_image_24" /> <Button    android:id="@+id/btnCaptureImage"    android:layout_width="match_parent"    android:layout_height="wrap_content"    android:layout_alignParentBottom="true"    android:text="Capture Image" /> </RelativeLayout>

Step 3 − Add the following code to src/MainActivity.kt

import android.Manifest import android.content.ContentValues import android.content.Intent import android.content.pm.PackageManager import android.net.Uri import android.os.Bundle import android.provider.MediaStore import android.widget.Button import android.widget.ImageView import android.widget.Toast import androidx.appcompat.app.AppCompatActivity import androidx.core.app.ActivityCompat import androidx.core.content.ContextCompat class MainActivity : AppCompatActivity() {    lateinit var button: Button    private lateinit var imageView: ImageView    lateinit var imageUri: Uri    private val permissionCode = 1000    private val imageCaptureCode = 1001    override fun onCreate(savedInstanceState: Bundle?) {       super.onCreate(savedInstanceState)       setContentView(R.layout.activity_main)       title = "KotlinApp"       imageView = findViewById(R.id.imageView)       button = findViewById(R.id.btnCaptureImage)       button.setOnClickListener {          ActivityCompat.requestPermissions(             this,             arrayOf(Manifest.permission.CAMERA),             permissionCode          )          if (ContextCompat.checkSelfPermission(             this,             Manifest.permission.CAMERA          ) != PackageManager.PERMISSION_GRANTED          ) {             openCamera()          } else {             PackageManager.PERMISSION_DENIED          }       }    }    private fun openCamera() {       val values = ContentValues()       values.put(MediaStore.Images.Media.TITLE, "New Picture")       values.put(MediaStore.Images.Media.DESCRIPTION, "From the Camera")       imageUri = contentResolver.insert(MediaStore.Images.Media.EXTERNAL_CONTENT_URI, values)!!       val cameraIntent = Intent(MediaStore.ACTION_IMAGE_CAPTURE)       cameraIntent.putExtra(MediaStore.EXTRA_OUTPUT, imageUri)       startActivityForResult(cameraIntent, imageCaptureCode)    }    override fun onRequestPermissionsResult(    requestCode: Int,    permissions: Array<String?>,    grantResults: IntArray    ) {       when (requestCode) {          permissionCode -> {             if (grantResults.isNotEmpty() && grantResults[0] == PackageManager.PERMISSION_GRANTED) {                openCamera()             } else {                Toast.makeText(this, "Permission denied...", Toast.LENGTH_SHORT).show()             }          }       }      }    override fun onActivityResult(requestCode: Int, resultCode: Int, data: Intent?) {       super.onActivityResult(requestCode, resultCode, data)       if (resultCode == RESULT_OK) {          imageView.setImageURI(imageUri);       }    } }

Step 4 − Add the following code to androidManifest.xml

<?xml version="1.0" encoding="utf-8"?> <manifest xmlns:android="http://schemas.android.com/apk/res/android" package="com.example.q11">    <uses-permission android:name="android.permission.CAMERA" />    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />    <application       android:allowBackup="true"       android:icon="@mipmap/ic_launcher"       android:label="@string/app_name"       android:roundIcon="@mipmap/ic_launcher_round"       android:supportsRtl="true"       android:theme="@style/AppTheme">       <activity android:name=".MainActivity">          <intent-filter>             <action android:name="android.intent.action.MAIN" />             <category android:name="android.intent.category.LAUNCHER" />          </intent-filter>       </activity>    </application> </manifest>

Let's try to run your application. I assume you have connected your actual Android Mobile device with your computer. To run the app from android studio, open one of your project's activity files and click the Run icon from the toolbar. Select your mobile device as an option and then check your mobile device which will display your default screen.

NOTE: TRY THIS IS REAL DEVICE FOR BETTER RESULTS