I'm want to do something like whatsapp, when user capture an image or select an image from gallery, they can edit the image/ draw something on the image.
Any help will be appreciated.
There are so many libraries for that.
Just try this Whatsapp like photo editor
Checkout the sample and library
ImageEditor.Builder(this, imagePath)
.setStickerAssets("stickers")
.disable(ImageEditor.EDITOR_TEXT) //to disable something
.open()
You will get the result in onActivityResult
override fun onActivityResult(requestCode: Int, resultCode: Int, data: Intent?) {
super.onActivityResult(requestCode, resultCode, data)
when (requestCode) {
ImageEditor.RC_IMAGE_EDITOR ->
if (resultCode == Activity.RESULT_OK && data != null) {
val imagePath: String = data.getStringExtra(ImageEditor.EXTRA_EDITED_PATH)
edited_image.setImageBitmap(BitmapFactory.decodeFile(imagePath))
}
}
}
Related
I am trying to learn Kotlin and I'm building a simple example as I go. I have 3 image buttons that open the camera and take a photo. The thumbnail is then set into an ImageView. I've used the examples from https://developer.android.com/training/camera/photobasics?hl=en to get the basics working (figuring if I can make it work for one, it'll work for all. It does indeed work for one, but I can't figure out how to make it one function that drops the thumbnail into the correct ImageView.
Inside my onCreate I have the listener for each of the buttons that will invoke the camera:
camRead1.setOnClickListener {dispatchTakePictureIntent() }
camRead2.setOnClickListener {dispatchTakePictureIntent() }
camRead3.setOnClickListener {dispatchTakePictureIntent() }
And I took the sample from the url above:
val REQUEST_IMAGE_CAPTURE = 1
private fun dispatchTakePictureIntent() {
val takePictureIntent = Intent(MediaStore.ACTION_IMAGE_CAPTURE)
try {
startActivityForResult(takePictureIntent, REQUEST_IMAGE_CAPTURE)
} catch (e: ActivityNotFoundException) {
// display error state to the user
}
}
override fun onActivityResult(requestCode: Int, resultCode: Int, data: Intent?) {
super.onActivityResult(requestCode, resultCode, data)
val thumb: ImageView = findViewById(R.id.thumbRead1)
if (requestCode == REQUEST_IMAGE_CAPTURE && resultCode == RESULT_OK) {
val imageBitmap = data.extras.get("data") as Bitmap
thumb.setImageBitmap(imageBitmap)
}
}
and pasted it into my class MainActivity, and after I replaced imageView in the override function with a variable (thumb) and added the super, it worked perfectly for the first one.
However, I am trying to get 3 photos, read1, read2, and read3 which each need to display the thumb in thumbRead1, thumbRead2 and thumbRead3. I can't figure out how the onActivityResult is executed since the call inside dispatchTakePictureIntent is calling startActivityForResult (especially as Android Studio says that startActivityForResult is deprecated).
Obviously, once onActivityResult executes, I can see that thumb defines R.id.thumbRead1 and receives imageBitmap but I don't understand how I can make it aware of the button that was clicked.
Without understanding how onActivityResult is called, I'm thinking that if I can do something like:
findViewById(R.id("thumbRead" + imgID))
to define the specific ImageView that I want the photo pasted into. Am I on the right track here? If not, what is the recommended way of doing this?
Note they've recently added what's supposed to be a cleaner way of starting other activities for results and getting the results, explained here. But since you're already doing it the traditional way, I'll explain how to get that working.
I think the easiest thing to do in this situation is just make more request codes, so you can check which request it was.
val REQUEST_IMAGE_CAPTURE_SOURCE_1 = 1
val REQUEST_IMAGE_CAPTURE_SOURCE_2 = 2
val REQUEST_IMAGE_CAPTURE_SOURCE_3 = 3
//...
camRead1.setOnClickListener { dispatchTakePictureIntent(REQUEST_IMAGE_CAPTURE_SOURCE_1) }
camRead2.setOnClickListener { dispatchTakePictureIntent(REQUEST_IMAGE_CAPTURE_SOURCE_2) }
camRead3.setOnClickListener { dispatchTakePictureIntent(REQUEST_IMAGE_CAPTURE_SOURCE_3) }
//...
private fun dispatchTakePictureIntent(requestCode: Int) {
val takePictureIntent = Intent(MediaStore.ACTION_IMAGE_CAPTURE)
try {
startActivityForResult(takePictureIntent, requestCode)
} catch (e: ActivityNotFoundException) {
// display error state to the user
}
}
override fun onActivityResult(requestCode: Int, resultCode: Int, data: Intent?) {
super.onActivityResult(requestCode, resultCode, data)
if (resultCode != RESULT_OK) {
// possibly show message to user
return
}
val imageViewId = when (requestCode) {
REQUEST_IMAGE_CAPTURE_SOURCE_1 -> R.id.thumbRead1
REQUEST_IMAGE_CAPTURE_SOURCE_2 -> R.id.thumbRead2
REQUEST_IMAGE_CAPTURE_SOURCE_3 -> R.id.thumbRead3
}
val imageView = findViewById<ImageView>(imageViewId)
imageView.imageBitmap = data.extras.get("data") as Bitmap
}
By the way, if you want to get an ID for a view using the String like you were showing you were trying, you would do it like this:
val viewId = resources.getIdentifier("thumbRead$imgId", "id", packageName)
val imageView = findViewById<ImageView>(viewId)
You need to pass different request code for each call and pass it to the dispatchTakePictureIntent function. You do not need to get id by findviewbyid. You simply can add the image on the basis of the request code.
val REQUEST_IMAGE_CAPTURE_ONE = 1
val REQUEST_IMAGE_CAPTURE_TWO = 2
val REQUEST_IMAGE_CAPTURE_THREE = 3
private fun dispatchTakePictureIntent(requestCode: Int) {
val takePictureIntent = Intent(MediaStore.ACTION_IMAGE_CAPTURE)
try {
startActivityForResult(takePictureIntent, requestCode)
} catch (e: ActivityNotFoundException) {
// display error state to the user
}
}
override fun onActivityResult(requestCode: Int, resultCode: Int, data: Intent?) {
super.onActivityResult(requestCode, resultCode, data)
if (resultCode == RESULT_OK) {
val imageBitmap = data.extras.get("data") as Bitmap
if (requestCode == REQUEST_IMAGE_CAPTURE_ONE ) {
thumbRead1.setImageBitmap(imageBitmap)
}else if (requestCode == REQUEST_IMAGE_CAPTURE_TWO ) {
thumbRead2.setImageBitmap(imageBitmap)
}else if (requestCode == REQUEST_IMAGE_CAPTURE_THREE ) {
thumbRead3.setImageBitmap(imageBitmap)
}
}
}
I want create a file to specify folder ，my file type is zip，I want use
FileOutStream to create.
It sends an intent, you can see the code below:
val intent = Intent(Intent.ACTION_OPEN_DOCUMENT_TREE)
startActivityForResult(mContext,intent, 9999,null)
then it gets the returned data, you can see the code below:
override fun onActivityResult(requestCode: Int, resultCode: Int, data: Intent?) {
super.onActivityResult(requestCode, resultCode, data)
if (resultCode == RESULT_OK) {
when (requestCode) {
9999 -> {
Log.v("Test", "Result URI " + data!!.getData())
// FileInputStream(data!!.getData())
}
}
}
}
}
the log is
V/Test: Result URI content://com.android.externalstorage.documents/tree/primary%3ATestFile
I want to create file with the Uri,but use FileOutStream will crash，have any way to create file in specify folder?
I took a picture using the camera app and when I stored it using a Bitmap this is what it looks like:
Why is the image so blurry? Is there another way to capture the image without distorting the quality?
Edit: Code for how the image is being captured and previewed
override fun onActivityResult(requestCode: Int, resultCode: Int, data: Intent?) {
super.onActivityResult(requestCode, resultCode, data)
if (requestCode == CAMERA_REQUEST_CODE) {
val foodBitmap = Objects.requireNonNull(Objects.requireNonNull(data)!!.extras)!!["data"] as Bitmap
food_image.setImageBitmap(foodBitmap)
}
}
I want to crop selected image from gallery to square image. I have button select_photo and image_view that displays photo. When user click on button it opens user gallery. I have tried several options that I have found on the web.
This is my code that create Intent and open gallery.
private fun choosePhotoFromGallary() {
val galleryIntent = Intent(Intent.ACTION_PICK)
galleryIntent.apply {
type = "image/*"
putExtra("crop", "true")
putExtra("outputX", 250)
putExtra("outputY", 250)
putExtra("scale", true)
putExtra("aspectX", 1)
putExtra("aspectY", 1)
putExtra("return-data", true)
}
startActivityForResult(galleryIntent, GALLERY_REQUEST_CODE)
}
I use onActivityResult() to get my data back from the Intent.
override fun onActivityResult(requestCode: Int, resultCode: Int, data: Intent?) {
super.onActivityResult(requestCode, resultCode, data)
if (requestCode == GALLERY_REQUEST_CODE) {
if(resultCode == Activity.RESULT_OK) {
photoImageView.setImageURI(data?.data)
}
}
}
But i have no "cropping menu" available. So chosen photo is unchanged. I want it to be square so i need cropping.
How can i launch "cropping menu" so user can crop the image?
I started screen capture intent according to MediaProjectionManager:
var intent = mediaProjectionManager.createScreenCaptureIntent()
startActivityForResult(intent, 0)
... but I have no idea how to stop screen capture. Sample projects for API 21 are still not available.
ok, found solution, firstly save result to MediaProjection instance:
override fun onActivityResult(requestCode: Int, resultCode: Int, data: Intent) {
super<Activity>.onActivityResult(requestCode, resultCode, data)
if (resultCode == Activity.RESULT_OK) {
mediaProjection = mediaProjectionManager.getMediaProjection(resultCode, data)
}
}
and to stop simply execute:
mediaProjection.stop()