implement camera image picker

README.md

@@ -78,6 +78,9 @@ them with api requests to upload them to server, -Not a single permission is req
 | 1.0.0   | Initial release  |
 | 1.0.1   | Increase buffer size to handle larger files (8GB Max)  |
 | 1.0.3   | Fix bug : LifecycleOwner Activity is attempting to register while current state is RESUMED.  |
+| 1.0.4   | Enhancement : Avoid possible activity reference leaking
+            Feature : Implement camera image picker.  |
+
 
 
 ### Contribution

filepicker/build.gradle

@@ -44,7 +44,7 @@ afterEvaluate {
 
                 groupId = 'com.github.atwa'
                 artifactId = 'filepicker'
-                version = '1.0.3'
+                version = '1.0.4-alpha1'
             }
         }
         repositories {

filepicker/src/main/java/com/atwa/filepicker/core/FilePicker.kt

@@ -16,6 +16,15 @@ interface FilePicker {
      */
     fun pickImage(onImagePicked: (Pair<Bitmap?, File?>?) -> Unit)
 
+    /**
+     * launching intent for picking images from gallery.
+     * This method should be called from activity and the result will be provided in the callback.
+     *
+     * Parameters:
+     * @param onImagePicked Callback to receive the picker gallery image result.
+     */
+    fun captureCameraImage(onImagePicked: (Pair<Bitmap?, File?>?) -> Unit)
+
     /**
      * launching intent for picking pdf files.
      * This method should be called from activity and the result will be provided in the callback.

filepicker/src/main/java/com/atwa/filepicker/core/StorageFilePicker.kt

@@ -7,7 +7,9 @@ import androidx.appcompat.app.AppCompatActivity
 import androidx.lifecycle.lifecycleScope
 import com.atwa.filepicker.decoder.Decoder
 import com.atwa.filepicker.decoder.UriDecoder
+import com.atwa.filepicker.request.*
 import com.atwa.filepicker.request.FilePickerRequest
+import com.atwa.filepicker.request.ImageCameraRequest
 import com.atwa.filepicker.request.ImagePickerRequest
 import com.atwa.filepicker.request.PdfPickerRequest
 import com.atwa.filepicker.request.PickerRequest
@@ -30,6 +32,11 @@ internal class StorageFilePicker(private val activity: WeakReference<AppCompatAc
         initialize()
     }
 
+    override fun captureCameraImage(onImagePicked: (Pair<Bitmap?, File?>?) -> Unit) {
+        pickerRequest = ImageCameraRequest(decoder, onImagePicked)
+        initialize()
+    }
+
     override fun pickPdf(onPdfPicked: (Pair<String?, File?>?) -> Unit) {
         pickerRequest = PdfPickerRequest(decoder, onPdfPicked)
         initialize()

filepicker/src/main/java/com/atwa/filepicker/decoder/Decoder.kt

@@ -9,4 +9,5 @@ internal interface Decoder {
     fun getStorageImage(imageUri: Uri?): Flow<Pair<Bitmap?, File?>?>
     fun getStoragePDF(pdfUri: Uri?): Flow<Pair<String?, File>?>
     fun getStorageFile(pdfUri: Uri?): Flow<Pair<String?, File>?>
+    fun createCameraOutputUri() : Uri
 }

filepicker/src/main/java/com/atwa/filepicker/decoder/UriDecoder.kt

@@ -7,13 +7,14 @@ import android.graphics.Bitmap
 import android.graphics.BitmapFactory.decodeFileDescriptor
 import android.net.Uri
 import android.provider.OpenableColumns
-import com.atwa.filepicker.stream.Streamer
 import com.atwa.filepicker.stream.FileStreamer
+import com.atwa.filepicker.stream.Streamer
 import kotlinx.coroutines.flow.flow
 import java.io.File
 import java.io.FileInputStream
 import java.io.FileOutputStream
 import java.io.IOException
+import java.util.concurrent.TimeUnit
 
 internal class UriDecoder(
     private val context: Context?,
@@ -59,6 +60,11 @@ internal class UriDecoder(
         emit(result)
     }
 
+    override fun createCameraOutputUri(): Uri {
+        val timeStamp = TimeUnit.MILLISECONDS.toSeconds(System.currentTimeMillis()).toString()
+        return Uri.parse("${context?.cacheDir}$timeStamp")
+    }
+
 
     private fun getBitMap(): Pair<Bitmap?, File?>? {
         return uri?.let { uri ->

filepicker/src/main/java/com/atwa/filepicker/request/ImageCameraRequest.kt

@@ -0,0 +1,36 @@
+package com.atwa.filepicker.request
+
+import android.content.Intent
+import android.graphics.Bitmap
+import android.net.Uri
+import android.os.Environment
+import android.provider.MediaStore
+import com.atwa.filepicker.decoder.Decoder
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.flow.collect
+import kotlinx.coroutines.withContext
+import java.io.File
+import java.util.concurrent.TimeUnit
+
+internal class ImageCameraRequest(
+    private val decoder: Decoder,
+    private val onPhotoTaken: (Pair<Bitmap?, File?>?) -> Unit
+) : PickerRequest {
+
+    private val outputUri : Uri by lazy { decoder.createCameraOutputUri() }
+
+    override val intent: Intent
+        get() = Intent(MediaStore.ACTION_IMAGE_CAPTURE).apply {
+            addFlags(Intent.FLAG_GRANT_WRITE_URI_PERMISSION)
+            putExtra(MediaStore.EXTRA_OUTPUT, outputUri)
+        }
+
+
+    override suspend fun invokeCallback(uri: Uri) {
+        var result: Pair<Bitmap?, File?>? = null
+        decoder.getStorageImage(outputUri).collect { result = it }
+        withContext(Dispatchers.Main) {
+            onPhotoTaken(result)
+        }
+    }
+}