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class GalleryActivity : AppCompatActivity() {
private val PICK_IMAGE_REQUEST = 71
private var filePath: Uri? = null
private var firebaseStore: FirebaseStorage? = null
private var storageReference: StorageReference? = null
override fun onCreate(savedInstanceState: Bundle?) {
super.onCreate(savedInstanceState)
setContentView(R.layout.activity_gallery)
setSupportActionBar(toolbar)
supportActionBar?.setDisplayHomeAsUpEnabled(true)
firebaseStore = FirebaseStorage.getInstance()
storageReference = FirebaseStorage.getInstance().reference
btn_choose_image.setOnClickListener { launchGallery() }
btn_upload_image.setOnClickListener { uploadImage() }
}
private fun launchGallery() {
val intent = Intent()
intent.type = "image/*"
intent.action = Intent.ACTION_GET_CONTENT
startActivityForResult(Intent.createChooser(intent, "Select Picture"), PICK_IMAGE_REQUEST)
}
override fun onActivityResult(requestCode: Int, resultCode: Int, data: Intent?) {
super.onActivityResult(requestCode, resultCode, data)
if (requestCode == PICK_IMAGE_REQUEST && resultCode == Activity.RESULT_OK) {
if(data == null || data.data == null){
return
}
filePath = data.data
try {
val bitmap = MediaStore.Images.Media.getBitmap(contentResolver, filePath)
uploadImage.setImageBitmap(bitmap)
} catch (e: IOException) {
e.printStackTrace()
}
}
}
private fun addUploadRecordToDb(uri: String){
val db = FirebaseFirestore.getInstance()
val data = HashMap<String, Any>()
data["imageUrl"] = uri
db.collection("posts")
.add(data)
.addOnSuccessListener { documentReference ->
Toast.makeText(this, "Saved to DB", Toast.LENGTH_LONG).show()
}
.addOnFailureListener { e ->
Toast.makeText(this, "Error saving to DB", Toast.LENGTH_LONG).show()
}
}
private fun uploadImage(){
if(filePath != null){
val ref = storageReference?.child("uploads/" + UUID.randomUUID().toString())
val uploadTask = ref?.putFile(filePath!!)
val urlTask = uploadTask?.continueWithTask(Continuation<UploadTask.TaskSnapshot, Task<Uri>> { task ->
if (!task.isSuccessful) {
task.exception?.let {
throw it
}
}
return@Continuation ref.downloadUrl
})?.addOnCompleteListener { task ->
if (task.isSuccessful) {
val downloadUri = task.result
addUploadRecordToDb(downloadUri.toString())
} else {
// Handle failures
}
}?.addOnFailureListener{
}
}else{
Toast.makeText(this, "Please Upload an Image", Toast.LENGTH_SHORT).show()
}
}
}
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