gallery drawer (#19)

app/build.gradle

@@ -5,7 +5,6 @@ apply plugin: 'kotlin-kapt'
 
 android {
     compileSdkVersion 31
-    buildToolsVersion "29.0.3"
 
     defaultConfig {
         applicationId "club.devsoc.scanf"
@@ -118,4 +117,13 @@ dependencies {
     // Jetpack Compose Integration
     implementation("androidx.navigation:navigation-compose:2.4.1")
 
+    // Glide for file and image loading
+    implementation 'com.github.bumptech.glide:glide:4.13.0'
+    annotationProcessor 'com.github.bumptech.glide:compiler:4.13.0'
+
+}
+
+repositories {
+    google()
+    mavenCentral()
 }

app/src/main/AndroidManifest.xml

@@ -3,6 +3,7 @@
     xmlns:tools="http://schemas.android.com/tools"
     package="club.devsoc.scanf">
 
+    <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />
     <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
     <uses-feature android:name="android.hardware.camera.any" />
     <uses-permission android:name="android.permission.CAMERA" />
@@ -24,6 +25,7 @@
             </intent-filter>
         </activity>
         <activity android:name=".view.activity.ImageActivity" />
+<!--        <activity android:name=".view.activity.GalleryActivity" />-->
         <activity android:name=".view.activity.QRScanActivity" />
         <activity android:name=".view.activity.MainActivity"/>
 

app/src/main/java/club/devsoc/scanf/model/GalleryModel.kt

@@ -0,0 +1,8 @@
+package club.devsoc.scanf.model
+
+import android.net.Uri
+
+data class GalleryModel(var path : Uri)
+{
+
+}

app/src/main/java/club/devsoc/scanf/view/activity/HomeActivity.kt

@@ -2,14 +2,30 @@ package club.devsoc.scanf.view.activity
 
 import androidx.appcompat.app.AppCompatActivity
 import android.os.Bundle
+import android.util.Log
+import android.view.View
+import androidx.activity.result.contract.ActivityResultContracts
 import club.devsoc.scanf.R
 import club.devsoc.scanf.view.fragment.HomeFragment
+import com.google.android.material.bottomsheet.BottomSheetBehavior
 
 class HomeActivity : AppCompatActivity() {
 
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
         setContentView(R.layout.home_activity)
 
+        val requestPermissionLauncher =
+            registerForActivityResult(
+                ActivityResultContracts.RequestPermission()
+            ) { isGranted: Boolean ->
+                if (isGranted) {
+                    Log.i("Permission: ", "Granted")
+                } else {
+                    Log.i("Permission: ", "Denied")
+                }
+            }
+
     }
+
 }

app/src/main/java/club/devsoc/scanf/view/adapter/GalleryAdapter.kt

@@ -0,0 +1,36 @@
+package club.devsoc.scanf.view.adapter
+
+import android.util.Log
+import android.view.LayoutInflater
+import android.view.View
+import android.view.ViewGroup
+import androidx.recyclerview.widget.RecyclerView
+import club.devsoc.scanf.R
+import club.devsoc.scanf.model.GalleryModel
+import kotlinx.android.synthetic.main.gallery_photo_view.view.*
+import kotlinx.android.synthetic.main.pdf_files_view.view.*
+
+class GalleryAdapter(private var galleryModel : ArrayList<GalleryModel>):RecyclerView.Adapter<GalleryAdapter.GalleryVH>() {
+
+    class GalleryVH(itemView: View) :RecyclerView.ViewHolder(itemView){
+
+        fun bind(galleryModel: GalleryModel)
+        {
+            itemView.gallery_photo.setImageURI(galleryModel.path)
+            Log.e("yeet", galleryModel.path.toString())
+        }
+
+    }
+
+    override fun onCreateViewHolder(parent: ViewGroup, viewType: Int)=
+        GalleryVH(LayoutInflater.from(parent.context).inflate(R.layout.gallery_photo_view,parent,false))
+
+
+    override fun onBindViewHolder(holder: GalleryVH, position: Int) {
+        holder.bind(galleryModel[position])
+    }
+
+    override fun getItemCount(): Int {
+        return galleryModel.size
+    }
+}

app/src/main/java/club/devsoc/scanf/view/fragment/HomeFragment.kt

@@ -1,24 +1,45 @@
 package club.devsoc.scanf.view.fragment
 
+import android.content.ContentUris
+import android.content.Intent
 import android.os.Bundle
-import android.transition.TransitionInflater
+import android.provider.MediaStore
 import android.util.Log
 import android.view.LayoutInflater
 import android.view.View
 import android.view.ViewGroup
 import androidx.camera.core.CameraSelector
 import androidx.camera.core.Preview
 import androidx.camera.lifecycle.ProcessCameraProvider
+import androidx.constraintlayout.widget.ConstraintLayout
 import androidx.core.content.ContextCompat
+import androidx.core.content.res.ResourcesCompat
 import androidx.fragment.app.Fragment
 import androidx.lifecycle.ViewModelProvider
 import androidx.navigation.fragment.FragmentNavigatorExtras
 import androidx.navigation.fragment.findNavController
+import androidx.recyclerview.widget.GridLayoutManager
 import club.devsoc.scanf.R
 import club.devsoc.scanf.databinding.HomeFragmentBinding
+import club.devsoc.scanf.model.GalleryModel
+//import club.devsoc.scanf.view.activity.GalleryActivity
+import club.devsoc.scanf.view.adapter.GalleryAdapter
 import club.devsoc.scanf.viewmodel.HomeViewModel
+import com.google.android.material.bottomsheet.BottomSheetBehavior
+import com.google.android.material.bottomsheet.BottomSheetDialog
+import kotlinx.android.synthetic.main.activity_main.*
+import kotlinx.android.synthetic.main.bottom_sheet.*
+import kotlinx.android.synthetic.main.gallery_bottom_sheet.*
+import kotlinx.android.synthetic.main.gallery_bottom_sheet.view.*
 import kotlinx.android.synthetic.main.home_fragment.*
 
+private lateinit var bottomSheetBehavior :
+        BottomSheetBehavior<ConstraintLayout>
+
+private lateinit var photoList : ArrayList<GalleryModel>
+
+
+
 class HomeFragment : Fragment() {
     lateinit var binding: HomeFragmentBinding
     companion object {
@@ -35,8 +56,10 @@ class HomeFragment : Fragment() {
         return binding.root
     }
 
+
     override fun onActivityCreated(savedInstanceState: Bundle?) {
         super.onActivityCreated(savedInstanceState)
+
         startCamera()
         viewModel = ViewModelProvider(this).get(HomeViewModel::class.java)
         // TODO: Use the ViewModel
@@ -47,6 +70,21 @@ class HomeFragment : Fragment() {
             null,
             extras)
         }
+        binding.galleryBtn.setOnClickListener{ view ->
+
+            openGallery()
+        }
+
+        binding.root.gallery_exit.setOnClickListener {
+            bottomSheetBehavior.state = BottomSheetBehavior.STATE_HIDDEN
+        }
+
+
+        getImages() // Gets all image URIs from gallery
+
+        setGallery() // sets the recyclerview for gallery
+        bottomSheet() // Initializes bottom sheet
+
     }
 
     private fun startCamera() {
@@ -83,4 +121,78 @@ class HomeFragment : Fragment() {
         }, ContextCompat.getMainExecutor(requireContext()))
     }
 
+    private fun setGallery() {
+
+        var galleryAdapter = GalleryAdapter(photoList)
+        gallery_view.layoutManager=GridLayoutManager(activity, 2)
+        gallery_view.adapter = galleryAdapter
+        //notify data set changed
+        galleryAdapter.notifyDataSetChanged()
+    }
+
+    private fun openGallery() {
+
+        val view = layoutInflater.inflate(R.layout.gallery_bottom_sheet, null)
+
+        view.gallery_exit.setOnClickListener {
+            bottomSheetBehavior.state = BottomSheetBehavior.STATE_HIDDEN
+        }
+
+        if (bottomSheetBehavior.state == 2 ||
+            bottomSheetBehavior.state == 5)
+            bottomSheetBehavior.state = BottomSheetBehavior.STATE_EXPANDED
+        else
+            bottomSheetBehavior.state = BottomSheetBehavior.STATE_HIDDEN
+
+    }
+
+    private fun bottomSheet() {
+
+        bottomSheetBehavior = BottomSheetBehavior.from(gallery_layout)
+
+        // setting initial state of bottom sheet to hidden
+        bottomSheetBehavior.isHideable = true;
+        bottomSheetBehavior.state = BottomSheetBehavior.STATE_HIDDEN
+
+    }
+
+    private fun getImages() {
+        val imageProjection = arrayOf(
+            MediaStore.Images.Media.DISPLAY_NAME,
+            MediaStore.Images.Media.SIZE,
+            MediaStore.Images.Media.DATE_TAKEN,
+            MediaStore.Images.Media._ID
+        )
+        val imageSortOrder = "${MediaStore.Images.Media.DATE_TAKEN} DESC"
+        val contentResolver = activity?.contentResolver
+        val cursor = contentResolver?.query(
+            MediaStore.Images.Media.EXTERNAL_CONTENT_URI,
+            imageProjection,
+            null,
+            null,
+            imageSortOrder
+        )
+
+        photoList = ArrayList(3)
+        if(cursor != null && cursor.count != 0) {
+
+            cursor.moveToNext()
+            while(cursor.isAfterLast == false) {
+                val idColumn = cursor.getColumnIndexOrThrow(MediaStore.Images.Media._ID)
+                val id = cursor.getLong(idColumn)
+                val contentUri = ContentUris.withAppendedId(
+                    MediaStore.Images.Media.EXTERNAL_CONTENT_URI,
+                    id
+                )
+
+                photoList.add(GalleryModel(contentUri))
+                cursor.moveToNext()
+
+
+            }
+        }
+
+    }
+
+
 }

app/src/main/res/drawable/rounded_dialog.xml

@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="utf-8"?>
+<shape xmlns:android="http://schemas.android.com/apk/res/android"
+    android:shape="rectangle">
+    <solid android:color="@android:color/darker_gray"/>
+    <corners android:topLeftRadius="32dp"
+        android:topRightRadius="32dp"/>
+
+</shape>

app/src/main/res/layout/gallery_bottom_sheet.xml

@@ -0,0 +1,53 @@
+<?xml version="1.0" encoding="utf-8"?>
+<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:id="@+id/gallery_layout"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    app:layout_behavior="com.google.android.material.bottomsheet.BottomSheetBehavior">
+
+    <com.google.android.material.floatingactionbutton.FloatingActionButton
+        android:id="@+id/gallery_exit"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:clickable="true"
+        android:contentDescription="@string/qr_scanner"
+        android:onClick="closeGallery"
+        app:backgroundTint="#716F6F"
+        app:layout_constraintBottom_toTopOf="@+id/relativeLayout"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintHorizontal_bias="0.498"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintTop_toTopOf="parent"
+        app:layout_constraintVertical_bias="0.636"
+        app:srcCompat="@drawable/ic_baseline_arrow_back_24" />
+
+    <RelativeLayout
+        android:id="@+id/relativeLayout"
+        android:layout_width="match_parent"
+        android:layout_height="match_parent"
+        android:layout_marginTop="236dp"
+        android:background="@drawable/rounded_dialog"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintHorizontal_bias="0.0"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintTop_toTopOf="parent">
+
+        <androidx.recyclerview.widget.RecyclerView
+            android:id="@+id/gallery_view"
+            android:layout_width="match_parent"
+            android:layout_height="match_parent"
+            android:layout_alignParentStart="true"
+            android:layout_alignParentTop="true"
+            android:layout_alignParentEnd="true"
+            android:layout_alignParentBottom="true"
+            android:layout_marginStart="-1dp"
+            android:layout_marginTop="25dp"
+            android:layout_marginEnd="1dp"
+            android:layout_marginBottom="-25dp">
+
+        </androidx.recyclerview.widget.RecyclerView>
+    </RelativeLayout>
+
+</androidx.constraintlayout.widget.ConstraintLayout>