Android Java Project to Capture Image From Camera & Save it inside Gallery

Welcome folks today in this blog post we will be capturing image from camera and display it inside the imageView widget and also saving the image inside the gallery. All the full source code of the application is shown below.

Get Started

In order to get started you need to make a new android project inside the android studio and then you will see the below directory structure as shown below at the end of the project.

Now we need to edit the AndroidManifest.xml file you need to include the camera and external storage permission as shown below

AndroidManifest.xml

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools">

    <uses-permission android:name="android.permission.CAMERA" />
    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />


    <application
        android:allowBackup="true"
        android:dataExtractionRules="@xml/data_extraction_rules"
        android:fullBackupContent="@xml/backup_rules"
        android:icon="@mipmap/ic_launcher"
        android:label="@string/app_name"
        android:supportsRtl="true"
        android:theme="@style/Theme.CameraApp"
        tools:targetApi="31">
        <activity
            android:name=".MainActivity"
            android:exported="true">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
    </application>

</manifest>

<?xml version="1.0" encoding="utf-8"?>

<manifest xmlns:android="http://schemas.android.com/apk/res/android"

xmlns:tools="http://schemas.android.com/tools">

<uses-permission android:name="android.permission.CAMERA" />

<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />

<application

android:allowBackup="true"

android:dataExtractionRules="@xml/data_extraction_rules"

android:fullBackupContent="@xml/backup_rules"

android:icon="@mipmap/ic_launcher"

android:label="@string/app_name"

android:supportsRtl="true"

android:theme="@style/Theme.CameraApp"

tools:targetApi="31">

<activity

android:name=".MainActivity"

android:exported="true">

<intent-filter>

</intent-filter>

</activity>

</application>

</manifest>

Now we need to edit the activity_main.xml layout file where we have the imageView widget where we will be displaying the captured image from the camera and also we will have the button to capture the image.

activity_main.xml

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:id="@+id/main_layout"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context=".MainActivity">

    <ImageView
        android:id="@+id/image_view"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_above="@id/button_capture"
        android:scaleType="fitCenter"
        android:adjustViewBounds="true" />

    <Button
        android:id="@+id/button_capture"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentBottom="true"
        android:layout_centerHorizontal="true"
        android:text="Capture Image"
        android:onClick="captureImage"/>

</RelativeLayout>

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"

xmlns:tools="http://schemas.android.com/tools"

android:id="@+id/main_layout"

android:layout_width="match_parent"

android:layout_height="match_parent"

tools:context=".MainActivity">

<ImageView

android:id="@+id/image_view"

android:layout_width="match_parent"

android:layout_height="wrap_content"

android:layout_above="@id/button_capture"

android:scaleType="fitCenter"

android:adjustViewBounds="true" />

<Button

android:id="@+id/button_capture"

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:layout_alignParentBottom="true"

android:layout_centerHorizontal="true"

android:text="Capture Image"

android:onClick="captureImage"/>

</RelativeLayout>

And now we need to edit the MainActivity.java file and copy paste the following code

MainActivity.java

package com.example.cameraapp;

import android.Manifest;
import android.content.Intent;
import android.content.pm.PackageManager;
import android.graphics.Bitmap;
import android.net.Uri;
import android.os.Bundle;
import android.os.Environment;
import android.provider.MediaStore;
import android.view.View;
import android.widget.ImageView;
import android.widget.Toast;

import androidx.appcompat.app.AppCompatActivity;
import androidx.core.app.ActivityCompat;
import androidx.core.content.ContextCompat;

import java.io.File;
import java.io.FileOutputStream;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.Locale;

public class MainActivity extends AppCompatActivity {

    private static final int REQUEST_CAMERA_PERMISSION_CODE = 1;
    private static final int REQUEST_IMAGE_CAPTURE = 2;

    private ImageView imageView;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        imageView = findViewById(R.id.image_view);
    }

    public void captureImage(View view) {
        // Check if camera permission is granted
        if (ContextCompat.checkSelfPermission(this, Manifest.permission.CAMERA)
                != PackageManager.PERMISSION_GRANTED) {
            // Request camera permission if not granted
            ActivityCompat.requestPermissions(this,
                    new String[]{Manifest.permission.CAMERA},
                    REQUEST_CAMERA_PERMISSION_CODE);
            return;
        }

        // Launch camera intent to capture image
        Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
        startActivityForResult(intent, REQUEST_IMAGE_CAPTURE);
    }

    @Override
    protected void onActivityResult(int requestCode, int resultCode, Intent data) {
        super.onActivityResult(requestCode, resultCode, data);

        // Handle result of image capture intent
        if (requestCode == REQUEST_IMAGE_CAPTURE && resultCode == RESULT_OK) {
            // Get captured image as bitmap
            Bundle extras = data.getExtras();
            Bitmap imageBitmap = (Bitmap) extras.get("data");

            // Set captured image to ImageView
            imageView.setImageBitmap(imageBitmap);

            // Save captured image to gallery
            saveImageToGallery(imageBitmap);
        }
    }

    private void saveImageToGallery(Bitmap imageBitmap) {
        // Get storage directory for saved images
        File storageDir = Environment.getExternalStoragePublicDirectory(
                Environment.DIRECTORY_PICTURES);

        // Create new file name for saved image
        String timeStamp = new SimpleDateFormat("yyyyMMdd_HHmmss", Locale.getDefault())
                .format(new Date());
        String fileName = "IMG_" + timeStamp + ".jpg";

        // Create new file for saved image
        File imageFile = new File(storageDir, fileName);

        try {
            // Write image bitmap to file
            FileOutputStream outputStream = new FileOutputStream(imageFile);
            imageBitmap.compress(Bitmap.CompressFormat.JPEG, 100, outputStream);
            outputStream.flush();
            outputStream.close();

            // Add image to gallery
            Intent mediaScanIntent = new Intent(Intent.ACTION_MEDIA_SCANNER_SCAN_FILE);
            mediaScanIntent.setData(Uri.fromFile(imageFile));
            sendBroadcast(mediaScanIntent);

            // Show success message
            Toast.makeText(this, "Image Saved Successully", Toast.LENGTH_SHORT).show();
        } catch (Exception e) {
            e.printStackTrace();
            Toast.makeText(this, "Failed to save Image", Toast.LENGTH_SHORT).show();
        }
    }

}

100

101

102

103

104

105

106

107

package com.example.cameraapp;

import android.Manifest;

import android.content.Intent;

import android.content.pm.PackageManager;

import android.graphics.Bitmap;

import android.net.Uri;

import android.os.Bundle;

import android.os.Environment;

import android.provider.MediaStore;

import android.view.View;

import android.widget.ImageView;

import android.widget.Toast;

import androidx.appcompat.app.AppCompatActivity;

import androidx.core.app.ActivityCompat;

import androidx.core.content.ContextCompat;

import java.io.File;

import java.io.FileOutputStream;

import java.text.SimpleDateFormat;

import java.util.Date;

import java.util.Locale;

public class MainActivity extends AppCompatActivity {

private static final int REQUEST_CAMERA_PERMISSION_CODE = 1;

private static final int REQUEST_IMAGE_CAPTURE = 2;

private ImageView imageView;

@Override

protected void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.activity_main);

imageView = findViewById(R.id.image_view);

}

public void captureImage(View view) {

// Check if camera permission is granted

if (ContextCompat.checkSelfPermission(this, Manifest.permission.CAMERA)

!= PackageManager.PERMISSION_GRANTED) {

// Request camera permission if not granted

ActivityCompat.requestPermissions(this,

new String[]{Manifest.permission.CAMERA},

REQUEST_CAMERA_PERMISSION_CODE);

return;

}

// Launch camera intent to capture image

Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);

startActivityForResult(intent, REQUEST_IMAGE_CAPTURE);

}

@Override

protected void onActivityResult(int requestCode, int resultCode, Intent data) {

super.onActivityResult(requestCode, resultCode, data);

// Handle result of image capture intent

if (requestCode == REQUEST_IMAGE_CAPTURE && resultCode == RESULT_OK) {

// Get captured image as bitmap

Bundle extras = data.getExtras();

Bitmap imageBitmap = (Bitmap) extras.get("data");

// Set captured image to ImageView

imageView.setImageBitmap(imageBitmap);

// Save captured image to gallery

saveImageToGallery(imageBitmap);

}

private void saveImageToGallery(Bitmap imageBitmap) {

// Get storage directory for saved images

File storageDir = Environment.getExternalStoragePublicDirectory(

Environment.DIRECTORY_PICTURES);

// Create new file name for saved image

String timeStamp = new SimpleDateFormat("yyyyMMdd_HHmmss", Locale.getDefault())

.format(new Date());

String fileName = "IMG_" + timeStamp + ".jpg";

// Create new file for saved image

File imageFile = new File(storageDir, fileName);

try {

// Write image bitmap to file

FileOutputStream outputStream = new FileOutputStream(imageFile);

imageBitmap.compress(Bitmap.CompressFormat.JPEG, 100, outputStream);

outputStream.flush();

outputStream.close();

// Add image to gallery

Intent mediaScanIntent = new Intent(Intent.ACTION_MEDIA_SCANNER_SCAN_FILE);

mediaScanIntent.setData(Uri.fromFile(imageFile));

sendBroadcast(mediaScanIntent);

// Show success message

Toast.makeText(this, "Image Saved Successully", Toast.LENGTH_SHORT).show();

} catch (Exception e) {

e.printStackTrace();

Toast.makeText(this, "Failed to save Image", Toast.LENGTH_SHORT).show();

}

As you can see in the above java code we are getting the reference of the imageView and the button widget using their id's which we have given inside the xml code. And then we are binding the onClick listener to the button to capture the image from the camera and inside it we are first of all asking the user to grant the permissions of camera at runtime and then when the user takes the picture from the camera app and then we are saving the image inside the gallery