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* Update qr code scan to use bottomsheetdialog ui * Fix failing QrCodeCameraPermissionsDialogFragment tests * Update tests for QR code scanning * Update documentation on support for qr_code-widget extension --------- Co-authored-by: Allan Onchuru <[email protected]>
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...n/java/org/smartregister/fhircore/quest/ui/sdc/qrCode/scan/QRCodeScannerDialogFragment.kt
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,188 @@ | ||
| /* | ||
| * Copyright 2021-2024 Ona Systems, Inc | ||
| * | ||
| * Licensed under the Apache License, Version 2.0 (the "License"); | ||
| * you may not use this file except in compliance with the License. | ||
| * You may obtain a copy of the License at | ||
| * | ||
| * http://www.apache.org/licenses/LICENSE-2.0 | ||
| * | ||
| * Unless required by applicable law or agreed to in writing, software | ||
| * distributed under the License is distributed on an "AS IS" BASIS, | ||
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| * See the License for the specific language governing permissions and | ||
| * limitations under the License. | ||
| */ | ||
|
|
||
| package org.smartregister.fhircore.quest.ui.sdc.qrCode.scan | ||
|
|
||
| import android.content.res.Resources | ||
| import android.graphics.RectF | ||
| import android.os.Bundle | ||
| import android.view.View | ||
| import android.view.ViewGroup | ||
| import android.widget.ImageButton | ||
| import android.widget.ImageView | ||
| import android.widget.TextView | ||
| import android.widget.Toast | ||
| import androidx.annotation.VisibleForTesting | ||
| import androidx.camera.core.ImageAnalysis.COORDINATE_SYSTEM_VIEW_REFERENCED | ||
| import androidx.camera.mlkit.vision.MlKitAnalyzer | ||
| import androidx.camera.view.LifecycleCameraController | ||
| import androidx.camera.view.PreviewView | ||
| import androidx.core.content.ContextCompat | ||
| import androidx.core.graphics.toRect | ||
| import androidx.core.os.bundleOf | ||
| import com.google.android.material.bottomsheet.BottomSheetBehavior | ||
| import com.google.android.material.bottomsheet.BottomSheetDialogFragment | ||
| import com.google.mlkit.vision.barcode.BarcodeScanner | ||
| import com.google.mlkit.vision.barcode.BarcodeScannerOptions | ||
| import com.google.mlkit.vision.barcode.BarcodeScanning | ||
| import com.google.mlkit.vision.barcode.common.Barcode | ||
| import java.util.concurrent.ExecutorService | ||
| import java.util.concurrent.Executors | ||
| import org.smartregister.fhircore.engine.util.location.PermissionUtils | ||
| import org.smartregister.fhircore.quest.R | ||
| import org.smartregister.fhircore.quest.ui.sdc.qrCode.CameraPermissionsDialogFragment | ||
|
|
||
| internal class QRCodeScannerDialogFragment : | ||
| BottomSheetDialogFragment(R.layout.fragment_qr_code_scan) { | ||
|
|
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| private lateinit var cameraExecutor: ExecutorService | ||
| private lateinit var cameraController: LifecycleCameraController | ||
| private lateinit var mlKitImageAnalyzer: MlKitAnalyzer | ||
| private val barcodeScanner: BarcodeScanner by lazy { | ||
| val options = BarcodeScannerOptions.Builder().setBarcodeFormats(Barcode.FORMAT_QR_CODE).build() | ||
| BarcodeScanning.getClient(options) | ||
| } | ||
|
|
||
| private lateinit var previewView: PreviewView | ||
| private lateinit var cancelScanButton: ImageButton | ||
| private lateinit var viewFinderImageView: ImageView | ||
| private lateinit var placeQrCodeScanTextView: TextView | ||
|
|
||
| @VisibleForTesting | ||
| val viewFinderBounds: RectF | ||
| get() { | ||
| val viewFinderImageViewHeight = viewFinderImageView.height | ||
| val viewFinderImageViewWidth = viewFinderImageView.width | ||
| return RectF( | ||
| viewFinderImageView.x, | ||
| viewFinderImageView.y, | ||
| viewFinderImageView.x + viewFinderImageViewWidth + 10, | ||
| viewFinderImageView.y + viewFinderImageViewHeight + 10, | ||
| ) | ||
| } | ||
|
|
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| override fun onViewCreated(view: View, savedInstanceState: Bundle?) { | ||
| super.onViewCreated(view, savedInstanceState) | ||
|
|
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| previewView = view.findViewById(R.id.previewView) | ||
| viewFinderImageView = view.findViewById(R.id.viewFinderImageView) | ||
| placeQrCodeScanTextView = view.findViewById(R.id.placeQrCodeScanTextView) | ||
| cancelScanButton = view.findViewById(R.id.cancelImageButton) | ||
| cancelScanButton.setOnClickListener { dismiss() } | ||
|
|
||
| val parent = view.parent as View | ||
| val behavior = BottomSheetBehavior.from(parent) | ||
| val layoutParams = parent.layoutParams | ||
| layoutParams.height = ViewGroup.LayoutParams.MATCH_PARENT | ||
| parent.layoutParams = layoutParams | ||
| behavior.maxHeight = (0.8 * Resources.getSystem().displayMetrics.heightPixels).toInt() | ||
| behavior.peekHeight = (0.8 * Resources.getSystem().displayMetrics.heightPixels).toInt() | ||
| behavior.state = BottomSheetBehavior.STATE_EXPANDED | ||
| behavior.isDraggable = false | ||
|
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||
| cameraExecutor = Executors.newSingleThreadExecutor() | ||
| cameraController = LifecycleCameraController(requireContext()) | ||
| mlKitImageAnalyzer = | ||
| MlKitAnalyzer( | ||
| listOf(barcodeScanner), | ||
| COORDINATE_SYSTEM_VIEW_REFERENCED, | ||
| ContextCompat.getMainExecutor(requireActivity()), | ||
| ) { result: MlKitAnalyzer.Result? -> | ||
| val barcodeResults = result?.getValue(barcodeScanner) | ||
| if ( | ||
| (barcodeResults == null) || (barcodeResults.size == 0) || (barcodeResults.first() == null) | ||
| ) { | ||
| return@MlKitAnalyzer | ||
| } | ||
|
|
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| onQrCodeDetected(barcodeResults[0]) | ||
| } | ||
|
|
||
| cameraController.setImageAnalysisAnalyzer( | ||
| ContextCompat.getMainExecutor(requireActivity()), | ||
| mlKitImageAnalyzer, | ||
| ) | ||
|
|
||
| parentFragmentManager.setFragmentResultListener( | ||
| CameraPermissionsDialogFragment.CAMERA_PERMISSION_REQUEST_RESULT_KEY, | ||
| this, | ||
| ) { _, result -> | ||
| val permissionGranted = | ||
| result.getBoolean(CameraPermissionsDialogFragment.CAMERA_PERMISSION_REQUEST_RESULT_KEY) | ||
| if (!permissionGranted) { | ||
| Toast.makeText( | ||
| requireActivity(), | ||
| requireContext().getString(R.string.barcode_camera_permission_denied), | ||
| Toast.LENGTH_SHORT, | ||
| ) | ||
| .show() | ||
| dismiss() | ||
| } | ||
| } | ||
| } | ||
|
|
||
| override fun onResume() { | ||
| super.onResume() | ||
|
|
||
| if ( | ||
| !PermissionUtils.checkPermissions( | ||
| requireContext(), | ||
| listOf(android.Manifest.permission.CAMERA), | ||
| ) | ||
| ) { | ||
| requestCameraPermissions() | ||
| } else { | ||
| bindCamera() | ||
| } | ||
| } | ||
|
|
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| private fun requestCameraPermissions() { | ||
| CameraPermissionsDialogFragment().show(parentFragmentManager, TAG) | ||
| } | ||
|
|
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| private fun bindCamera() { | ||
| cameraController.bindToLifecycle(this) | ||
| previewView.controller = cameraController | ||
| } | ||
|
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| private fun isBarcodeWithinExpectedBounds(barcode: Barcode): Boolean { | ||
| return barcode.boundingBox?.let { viewFinderBounds.toRect().contains(it) } ?: false | ||
| } | ||
|
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| @VisibleForTesting | ||
| fun onQrCodeDetected(barcode: Barcode) { | ||
| if (isBarcodeWithinExpectedBounds(barcode)) { | ||
| parentFragmentManager.setFragmentResult( | ||
| RESULT_REQUEST_KEY, | ||
| bundleOf(RESULT_REQUEST_KEY to barcode.rawValue), | ||
| ) | ||
| dismiss() | ||
| } else { | ||
| placeQrCodeScanTextView.visibility = View.VISIBLE | ||
| } | ||
| } | ||
|
|
||
| override fun onDestroyView() { | ||
| super.onDestroyView() | ||
| cameraExecutor.shutdown() | ||
| barcodeScanner.close() | ||
| } | ||
|
|
||
| companion object { | ||
| private const val TAG = "QRCodeScannerDialogFragment" | ||
| const val RESULT_REQUEST_KEY = "quest.ui.sdc.qrCode.scan.QRCodeScannerDialogFragment" | ||
| } | ||
| } |
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android/quest/src/main/res/drawable-xxxhdpi/ic_scan_qr_viewfinder.png
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