How to share a captured Image to another App in Android

Pre-requisite: How to open Camera through Intent and capture an image

In this article, we will try to send the captured image (from this article) to other apps using Android Studio.

Approach:

The image captured gets stored on the external storage. Hence we need to request permission to access the files from the user. So take permission to access external storage permission in the manifest file.

Here pictureDir(File) is pointing to the directory of external storage named DIRECTORY_PICTURES

File pictureDir
    = new File(
        Environment.getExternalStoragePublicDirectory(
            Environment.DIRECTORY_PICTURES),
        "CameraDemo");

In onCreate() method, check whether the directory pictureDir is present or not. If not then create the directory with the code below
```
if(!pictureDir.exists()){
    pictureDir.mkdirs();
}
```
Create another method called callCameraApp() to get the clicked image from external storage.
- Capture the image using Intent
- Create a file to store the image in the pictureDir directory.
- Get the URI object of this image file
- Put the image on the Intent storage to be accessed from other modules of the app.
- Pass the image through intent to startActivityForResult()

Share this image to other app using intent.

Intent emailIntent = new Intent(android.content.Intent.ACTION_SEND);

For the sake of this article, we will be selecting Gmail and will be sending this image as an attachment in a mail.
```
startActivity(Intent.createChooser(emailIntent, "Send mail..."));
```

Below is the complete implementation of the above approach:

activity_main.xml

<?xml version="1.0" encoding="utf-8"?> 
<RelativeLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context=".MainActivity"> 
  
    <!--Textview with title "Camera_Demo!" is given by  -->     
    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Camera Demo!"
        android:id="@+id/tv"
        android:textSize="20sp"
        android:textStyle="bold"
        android:layout_centerHorizontal="true"
        /> 
  
    <!-- Add button to take a picture--> 
    <Button
        android:id="@+id/button1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_below="@id/tv"
        android:layout_marginTop="50dp"
        android:text="Take Picture"
        android:textSize="20sp"
        android:textStyle="bold" /> 
  
    <!-- Add ImageView to display the captured image--> 
    <ImageView
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:id="@+id/imageView1"
        android:layout_below="@id/button1"
        /> 
</RelativeLayout> 

MainActivity.java

package com.example.camera_mail; 
  
import android.Manifest; 
import android.content.Intent; 
import android.content.pm.PackageManager; 
import android.net.Uri; 
import android.os.Environment; 
import android.provider.MediaStore; 
import android.support.v4.app.ActivityCompat; 
import android.support.v4.content.ContextCompat; 
import android.support.v7.app.AppCompatActivity; 
import android.os.Bundle; 
import android.view.View; 
import android.widget.Button; 
import android.widget.ImageView; 
import android.widget.Toast; 
  
import java.io.File; 
  
public class MainActivity 
    extends AppCompatActivity 
    implements View.OnClickListener { 
  
    private static final int
        CAMERA_PIC_REQUEST 
        = 1337; 
    private static final int
        REQUEST_EXTERNAL_STORAGE_RESULT 
        = 1; 
    private static final String 
        FILE_NAME 
        = "image01.jpg"; 
  
    private Button b1; 
    private ImageView img1; 
  
    File pictureDir 
        = new File( 
            Environment.getExternalStoragePublicDirectory( 
                Environment.DIRECTORY_PICTURES), 
            "CameraDemo"); 
    private Uri fileUri; 
  
    // The onCreate() method 
    @Override
    protected void onCreate(Bundle savedInstanceState) 
    { 
        super.onCreate(savedInstanceState); 
        setContentView(R.layout.activity_main); 
  
        b1 = (Button)findViewById(R.id.button1); 
        img1 = (ImageView)findViewById(R.id.imageView1); 
        b1.setOnClickListener(this); 
        if (!pictureDir.exists()) { 
            pictureDir.mkdirs(); 
        } 
    } 
  
    // Open the camera app to capture the image 
    public void callCameraApp() 
    { 
        Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE); 
        File image = new File(pictureDir, FILE_NAME); 
        fileUri = Uri.fromFile(image); 
        intent.putExtra(MediaStore.EXTRA_OUTPUT, fileUri); 
        startActivityForResult(intent, CAMERA_PIC_REQUEST); 
    } 
  
    public void onClick(View arg0) 
    { 
        if ( 
            ContextCompat.checkSelfPermission( 
                this, 
                Manifest 
                    .permission 
                    .WRITE_EXTERNAL_STORAGE) 
            == PackageManager.PERMISSION_GRANTED) { 
  
            callCameraApp(); 
        } 
        else { 
            if ( 
                ActivityCompat 
                    .shouldShowRequestPermissionRationale( 
                        this, 
                        Manifest 
                            .permission 
                            .WRITE_EXTERNAL_STORAGE)) { 
                Toast.makeText( 
                         this, 
                         "External storage permission"
                             + " required to save images", 
                         Toast.LENGTH_SHORT) 
                    .show(); 
            } 
  
            ActivityCompat 
                .requestPermissions( 
                    this, 
                    new String[] { 
                        Manifest 
                            .permission 
                            .WRITE_EXTERNAL_STORAGE }, 
                    REQUEST_EXTERNAL_STORAGE_RESULT); 
        } 
    } 
  
    protected void onActivityResult(int requestCode, 
                                    int resultCode, 
                                    Intent data) 
    { 
  
        if (requestCode == CAMERA_PIC_REQUEST 
            && resultCode == RESULT_OK) { 
            ImageView imageView 
                = (android.widget.ImageView) 
                    findViewById(R.id.imageView1); 
  
            File image = new File(pictureDir, FILE_NAME); 
            fileUri = Uri.fromFile(image); 
            imageView.setImageURI(fileUri); 
            emailPicture(); 
        } 
        else if (resultCode == RESULT_CANCELED) { 
            Toast.makeText( 
                     this, 
                     "You did not click the photo", 
                     Toast.LENGTH_SHORT) 
                .show(); 
        } 
    } 
  
    @Override
    public void onRequestPermissionsResult( 
        int requestCode, 
        String[] permissions, 
        int[] grantResults) 
    { 
  
        if (requestCode == REQUEST_EXTERNAL_STORAGE_RESULT) { 
            if (grantResults[0] 
                == PackageManager.PERMISSION_GRANTED) { 
                callCameraApp(); 
            } 
            else { 
                Toast.makeText( 
                         this, "External write permission"
                                   + " has not been granted, "
                                   + " cannot saved images", 
                         Toast.LENGTH_SHORT) 
                    .show(); 
            } 
        } 
        else { 
            super.onRequestPermissionsResult( 
                requestCode, 
                permissions, 
                grantResults); 
        } 
    } 
  
    // Function to send the image through mail 
    public void emailPicture() 
    { 
        Toast.makeText( 
                 this, 
                 "Now, sending the mail", 
                 Toast.LENGTH_LONG) 
            .show(); 
  
        Intent emailIntent 
            = new Intent( 
                android.content.Intent.ACTION_SEND); 
        emailIntent.setType("application/image"); 
  
        emailIntent.putExtra( 
            android.content.Intent.EXTRA_EMAIL, 
            new String[] { 
  
                // default receiver id 
                "enquiry@geeksforgeeks.org" }); 
  
        // Subject of the mail 
        emailIntent.putExtra( 
            android.content.Intent.EXTRA_SUBJECT, 
            "New photo"); 
  
        // Body of the mail 
        emailIntent.putExtra( 
            android.content.Intent.EXTRA_TEXT, 
            "Here's a captured image"); 
  
        // Set the location of the image file 
        // to be added as an attachment 
        emailIntent.putExtra(Intent.EXTRA_STREAM, fileUri); 
  
        // Start the email activity 
        // to with the prefilled information 
        startActivity( 
            Intent.createChooser(emailIntent, 
                                 "Send mail...")); 
    } 
} 

AndroidManifest.xml

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

Launch the app

Launch the app
Capture the image

Image captured and two options given to user
Select the app to be share the captured image. Here GMail is selected
Send the captured image through mail

Send the captured image through mail
Image received

Image received through mail

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My Personal Notes

activity_main.xml

MainActivity.java

AndroidManifest.xml

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