Feature/#371 silent camera

app/src/main/java/jp/toastkid/yobidashi/barcode/BarcodeReaderActivity.kt

@@ -4,24 +4,32 @@ import android.Manifest
 import android.content.Context
 import android.content.Intent
 import android.content.pm.PackageManager
+import android.graphics.Bitmap
+import android.graphics.Rect
 import android.os.Build
 import android.os.Bundle
 import android.text.TextUtils
 import android.view.View
 import android.view.animation.AnimationUtils
+import androidx.annotation.LayoutRes
 import androidx.annotation.StringRes
 import androidx.databinding.DataBindingUtil
 import com.google.zxing.ResultPoint
 import com.journeyapps.barcodescanner.BarcodeCallback
 import com.journeyapps.barcodescanner.BarcodeResult
+import com.journeyapps.barcodescanner.SourceData
+import com.journeyapps.barcodescanner.camera.PreviewCallback
 import jp.toastkid.yobidashi.BaseActivity
 import jp.toastkid.yobidashi.R
 import jp.toastkid.yobidashi.databinding.ActivityBarcodeReaderBinding
 import jp.toastkid.yobidashi.libs.Colors
 import jp.toastkid.yobidashi.libs.Toaster
 import jp.toastkid.yobidashi.libs.clip.Clipboard
 import jp.toastkid.yobidashi.libs.intent.IntentFactory
+import jp.toastkid.yobidashi.libs.storage.ExternalFileAssignment
 import jp.toastkid.yobidashi.search.SearchAction
+import timber.log.Timber
+import java.io.FileOutputStream
 
 /**
  * Barcode reader activity.
@@ -56,6 +64,7 @@ class BarcodeReaderActivity : BaseActivity() {
             requestPermissions(arrayOf(Manifest.permission.CAMERA), 1)
             return
         }
+
         startDecode()
     }
 
@@ -105,6 +114,34 @@ class BarcodeReaderActivity : BaseActivity() {
         }
     }
 
+    fun camera() {
+        val barcodeView = binding?.barcodeView ?: return
+
+        barcodeView.barcodeView?.cameraInstance?.requestPreview(object : PreviewCallback {
+            override fun onPreview(sourceData: SourceData?) {
+                val output = ExternalFileAssignment().assignFile(
+                        this@BarcodeReaderActivity,
+                        "shoot_${System.currentTimeMillis()}.png"
+                )
+
+                sourceData?.cropRect = getRect()
+                sourceData?.bitmap?.compress(Bitmap.CompressFormat.PNG, 100, FileOutputStream(output))
+                Toaster.snackShort(barcodeView, "Camera saved: ${output.absolutePath}", colorPair())
+            }
+
+            private fun getRect(): Rect {
+                val rect = Rect()
+                windowManager.defaultDisplay.getRectSize(rect)
+                return rect
+            }
+
+            override fun onPreviewError(e: Exception?) {
+                Timber.e(e)
+            }
+
+        })
+    }
+
     /**
      * Get result text.
      */
@@ -122,7 +159,7 @@ class BarcodeReaderActivity : BaseActivity() {
         }
     }
 
-    public override fun onResume() {
+    override fun onResume() {
         super.onResume()
         binding?.barcodeView?.resume()
         val colorPair = colorPair()
@@ -136,7 +173,7 @@ class BarcodeReaderActivity : BaseActivity() {
         }
     }
 
-    public override fun onPause() {
+    override fun onPause() {
         super.onPause()
         binding?.barcodeView?.pause()
     }
@@ -163,6 +200,7 @@ class BarcodeReaderActivity : BaseActivity() {
         /**
          * Layout ID.
          */
+        @LayoutRes
         private const val LAYOUT_ID = R.layout.activity_barcode_reader
 
         /**

app/src/main/java/jp/toastkid/yobidashi/libs/storage/ExternalFileAssignment.kt

@@ -0,0 +1,32 @@
+/*
+ * Copyright (c) 2019 toastkidjp.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompany this distribution.
+ * The Eclipse Public License is available at http://www.eclipse.org/legal/epl-v10.html.
+ */
+package jp.toastkid.yobidashi.libs.storage
+
+import android.content.Context
+import android.os.Build
+import android.os.Environment
+import java.io.File
+
+/**
+ * @author toastkidjp
+ */
+class ExternalFileAssignment {
+
+    fun assignFile(context: Context, fileName: String): File {
+        val externalFilesDir = if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT) {
+            Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_DOCUMENTS)
+        } else {
+            context.getExternalFilesDir(Environment.DIRECTORY_DOWNLOADS)
+        }
+
+        if (!externalFilesDir.exists()) {
+            externalFilesDir.mkdirs()
+        }
+        return File(externalFilesDir, fileName)
+    }
+}

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

@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
-<layout>
+<layout xmlns:app="http://schemas.android.com/apk/res-auto">
     <data>
         <variable name="activity" type="jp.toastkid.yobidashi.barcode.BarcodeReaderActivity" />
     </data>
@@ -24,6 +24,20 @@
             android:layout_gravity="top"
             />
 
+        <com.google.android.material.floatingactionbutton.FloatingActionButton
+            android:id="@+id/camera"
+            android:layout_width="@dimen/menu_button_size"
+            android:layout_height="@dimen/menu_button_size"
+            android:layout_marginBottom="20dp"
+            android:layout_marginRight="20dp"
+            android:layout_marginEnd="20dp"
+            android:layout_gravity="right|bottom"
+            android:src="@drawable/ic_camera_black"
+            app:backgroundTint="@color/soft_background"
+            android:background="@drawable/ripple_transparent"
+            android:onClick="@{view -> activity.camera()}"
+            />
+
         <RelativeLayout
             android:id="@+id/result_area"
             android:layout_width="match_parent"