Pick image from gallery or camera in android kotlin example is today’s tutorial.
Pick image from gallery or camera in android kotlin tutorial guides you how to select/get the image from a gallery in android programmatically.
We will choose/take a photo from gallery or camera in the Android Studio by opening via Intent.
First, check the output of pick image from gallery or camera in android example and then we will develop it.
Creating Pick Image From Gallery Or Camera In Android Studio Tutorial step by step
Step 1: Create a new project in Android Studio.
Step 2: Updating AndroidManifest.xml file
add required permissions between <manifest>ā¦.</manifest> tag.
<uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
<uses-permission android:name="android.permission.CAMERA" />
Note: If you are targeting SDK version above 22 (Above Lollipop) then you need to ask a user for granting runtime permissions. Check marshmallow runtime permission for more information.
Final code for AndroidManifest.xml file
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.parsaniahardik.kotlinselectimagegallery">
<uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
<uses-permission android:name="android.permission.CAMERA" />
<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>
Step 3: Updating activity_main.xml file
Copy and paste below source code in activity_main.xml file
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
tools:context="com.example.parsaniahardik.kotlinselectimagegallery.MainActivity">
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="@+id/btn"
android:layout_gravity="center_horizontal"
android:layout_marginTop="40dp"
android:textAppearance="?android:attr/textAppearanceLarge"
android:text="Select or Capture Image" />
<ImageView
android:layout_width="300dp"
android:layout_height="300dp"
android:layout_gravity="center"
android:layout_marginTop="20dp"
android:scaleType="fitXY"
android:src="@mipmap/ic_launcher"
android:id="@+id/iv"/>
</LinearLayout>
Step 4: Preparing MainActivity.java class
Add following source code in MainActivity.java class
import android.app.AlertDialog
import android.content.Intent
import android.graphics.Bitmap
import android.media.MediaScannerConnection
import android.support.v7.app.AppCompatActivity
import android.os.Bundle
import android.os.Environment
import android.provider.MediaStore
import android.util.Log
import android.view.View
import android.widget.Button
import android.widget.ImageView
import android.widget.Toast
import java.io.ByteArrayOutputStream
import java.io.File
import java.io.FileOutputStream
import java.io.IOException
import java.util.*
class MainActivity : AppCompatActivity() {
private var btn: Button? = null
private var imageview: ImageView? = null
private val GALLERY = 1
private val CAMERA = 2
override fun onCreate(savedInstanceState:Bundle?) {
super.onCreate(savedInstanceState)
setContentView(R.layout.activity_main)
btn = findViewById<View>(R.id.btn) as Button
imageview = findViewById<View>(R.id.iv) as ImageView
btn!!.setOnClickListener { showPictureDialog() }
}
private fun showPictureDialog() {
val pictureDialog = AlertDialog.Builder(this)
pictureDialog.setTitle("Select Action")
val pictureDialogItems = arrayOf("Select photo from gallery", "Capture photo from camera")
pictureDialog.setItems(pictureDialogItems
) { dialog, which ->
when (which) {
0 -> choosePhotoFromGallary()
1 -> takePhotoFromCamera()
}
}
pictureDialog.show()
}
fun choosePhotoFromGallary() {
val galleryIntent = Intent(Intent.ACTION_PICK,
MediaStore.Images.Media.EXTERNAL_CONTENT_URI)
startActivityForResult(galleryIntent, GALLERY)
}
private fun takePhotoFromCamera() {
val intent = Intent(MediaStore.ACTION_IMAGE_CAPTURE)
startActivityForResult(intent, CAMERA)
}
public override fun onActivityResult(requestCode:Int, resultCode:Int, data: Intent?) {
super.onActivityResult(requestCode, resultCode, data)
/* if (resultCode == this.RESULT_CANCELED)
{
return
}*/
if (requestCode == GALLERY)
{
if (data != null)
{
val contentURI = data!!.data
try
{
val bitmap = MediaStore.Images.Media.getBitmap(this.contentResolver, contentURI)
val path = saveImage(bitmap)
Toast.makeText(this@MainActivity, "Image Saved!", Toast.LENGTH_SHORT).show()
imageview!!.setImageBitmap(bitmap)
}
catch (e: IOException) {
e.printStackTrace()
Toast.makeText(this@MainActivity, "Failed!", Toast.LENGTH_SHORT).show()
}
}
}
else if (requestCode == CAMERA)
{
val thumbnail = data!!.extras!!.get("data") as Bitmap
imageview!!.setImageBitmap(thumbnail)
saveImage(thumbnail)
Toast.makeText(this@MainActivity, "Image Saved!", Toast.LENGTH_SHORT).show()
}
}
fun saveImage(myBitmap: Bitmap):String {
val bytes = ByteArrayOutputStream()
myBitmap.compress(Bitmap.CompressFormat.JPEG, 90, bytes)
val wallpaperDirectory = File(
(Environment.getExternalStorageDirectory()).toString() + IMAGE_DIRECTORY)
// have the object build the directory structure, if needed.
Log.d("fee",wallpaperDirectory.toString())
if (!wallpaperDirectory.exists())
{
wallpaperDirectory.mkdirs()
}
try
{
Log.d("heel",wallpaperDirectory.toString())
val f = File(wallpaperDirectory, ((Calendar.getInstance()
.getTimeInMillis()).toString() + ".jpg"))
f.createNewFile()
val fo = FileOutputStream(f)
fo.write(bytes.toByteArray())
MediaScannerConnection.scanFile(this,
arrayOf(f.getPath()),
arrayOf("image/jpeg"), null)
fo.close()
Log.d("TAG", "File Saved::--->" + f.getAbsolutePath())
return f.getAbsolutePath()
}
catch (e1: IOException) {
e1.printStackTrace()
}
return ""
}
companion object {
private val IMAGE_DIRECTORY = "/demonuts"
}
}
Step 5: Description of MainActivity.java
When the user clicks the button, dialog with select options appears.
Following is button click method.
btn!!.setOnClickListener { showPictureDialog() }
The dialog contains options whether to select an image from gallery or to capture from camera.
Below is the code for showPictureDialog() method.
private fun showPictureDialog() {
val pictureDialog = AlertDialog.Builder(this)
pictureDialog.setTitle("Select Action")
val pictureDialogItems = arrayOf("Select photo from gallery", "Capture photo from camera")
pictureDialog.setItems(pictureDialogItems
) { dialog, which ->
when (which) {
0 -> choosePhotoFromGallary()
1 -> takePhotoFromCamera()
}
}
pictureDialog.show()
}
If a user selects gallery, then following method is executed.
fun choosePhotoFromGallary() {
val galleryIntent = Intent(Intent.ACTION_PICK,
MediaStore.Images.Media.EXTERNAL_CONTENT_URI)
startActivityForResult(galleryIntent, GALLERY)
}
And if user choose camera, then below method is run.
private fun takePhotoFromCamera() {
val intent = Intent(MediaStore.ACTION_IMAGE_CAPTURE)
startActivityForResult(intent, CAMERA)
}
After selecting an image from gallery or capturing photo from camera, an onActivityResult() method is executed.
Code for onActivityResult(), is as below.
public override fun onActivityResult(requestCode:Int, resultCode:Int, data: Intent?) {
super.onActivityResult(requestCode, resultCode, data)
/* if (resultCode == this.RESULT_CANCELED)
{
return
}*/
if (requestCode == GALLERY)
{
if (data != null)
{
val contentURI = data!!.data
try
{
val bitmap = MediaStore.Images.Media.getBitmap(this.contentResolver, contentURI)
val path = saveImage(bitmap)
Toast.makeText(this@MainActivity, "Image Saved!", Toast.LENGTH_SHORT).show()
imageview!!.setImageBitmap(bitmap)
}
catch (e: IOException) {
e.printStackTrace()
Toast.makeText(this@MainActivity, "Failed!", Toast.LENGTH_SHORT).show()
}
}
}
else if (requestCode == CAMERA)
{
val thumbnail = data!!.extras!!.get("data") as Bitmap
imageview!!.setImageBitmap(thumbnail)
saveImage(thumbnail)
Toast.makeText(this@MainActivity, "Image Saved!", Toast.LENGTH_SHORT).show()
}
}
If an image comes from an gallery, then compiler goes at below code.
if (requestCode == GALLERY)
{
if (data != null)
{
val contentURI = data!!.data
try
{
val bitmap = MediaStore.Images.Media.getBitmap(this.contentResolver, contentURI)
val path = saveImage(bitmap)
Toast.makeText(this@MainActivity, "Image Saved!", Toast.LENGTH_SHORT).show()
imageview!!.setImageBitmap(bitmap)
}
catch (e: IOException) {
e.printStackTrace()
Toast.makeText(this@MainActivity, "Failed!", Toast.LENGTH_SHORT).show()
}
}
}
If a photo is from a camera, then compiler goes to following.
else if (requestCode == CAMERA)
{
val thumbnail = data!!.extras!!.get("data") as Bitmap
imageview!!.setImageBitmap(thumbnail)
saveImage(thumbnail)
Toast.makeText(this@MainActivity, "Image Saved!", Toast.LENGTH_SHORT).show()
}
Below is the method to save the image or photo.
fun saveImage(myBitmap: Bitmap):String {
val bytes = ByteArrayOutputStream()
myBitmap.compress(Bitmap.CompressFormat.JPEG, 90, bytes)
val wallpaperDirectory = File(
(Environment.getExternalStorageDirectory()).toString() + IMAGE_DIRECTORY)
// have the object build the directory structure, if needed.
Log.d("fee",wallpaperDirectory.toString())
if (!wallpaperDirectory.exists())
{
wallpaperDirectory.mkdirs()
}
try
{
Log.d("heel",wallpaperDirectory.toString())
val f = File(wallpaperDirectory, ((Calendar.getInstance()
.getTimeInMillis()).toString() + ".jpg"))
f.createNewFile()
val fo = FileOutputStream(f)
fo.write(bytes.toByteArray())
MediaScannerConnection.scanFile(this,
arrayOf(f.getPath()),
arrayOf("image/jpeg"), null)
fo.close()
Log.d("TAG", "File Saved::--->" + f.getAbsolutePath())
return f.getAbsolutePath()
}
catch (e1: IOException) {
e1.printStackTrace()
}
return ""
}
In above code, IMAGE_DIRECTORY is the folder name in which all the images will be saved.
JAVA Version
Java version of this tutorial : Get Image From Gallery Android
Other information regarding this tutorial
So that’s all for pick image from gallery or camera in android kotlin example. If you have queries, then ask them in the comment section. Thank you š
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