refactor : refactor classes and methods

Author: harshithdwivedi

app/src/main/java/io/github/the_dagger/mlkit/activity/LandmarkDetectorActivity.kt

@@ -0,0 +1,109 @@
+package io.github.the_dagger.mlkit.activity
+
+import android.Manifest
+import android.content.Intent
+import android.content.pm.PackageManager
+import android.graphics.Bitmap
+import android.graphics.BitmapFactory
+import android.os.Bundle
+import android.support.design.widget.BottomSheetBehavior
+import android.support.v4.app.ActivityCompat
+import android.util.Log
+import android.view.View
+import android.widget.Toast
+import com.google.firebase.ml.vision.FirebaseVision
+import com.google.firebase.ml.vision.common.FirebaseVisionImage
+import io.github.the_dagger.mlkit.R
+import kotlinx.android.synthetic.main.activity_main.*
+import kotlinx.android.synthetic.main.layout_landmark.*
+import pl.aprilapps.easyphotopicker.DefaultCallback
+import pl.aprilapps.easyphotopicker.EasyImage
+import java.io.File
+
+
+class LandmarkDetectorActivity : BaseCameraActivity() {
+
+    override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+        setupBottomSheet(R.layout.layout_landmark)
+        cameraView.visibility = View.GONE
+        if (ActivityCompat.checkSelfPermission(this, Manifest.permission.WRITE_EXTERNAL_STORAGE)
+                == PackageManager.PERMISSION_DENIED) {
+            ActivityCompat.requestPermissions(this, Array<String>(1) { Manifest.permission.WRITE_EXTERNAL_STORAGE }, 12345)
+            fab_take_photo.setOnClickListener(null)
+        } else {
+            fab_take_photo.setOnClickListener(this)
+        }
+    }
+
+    override fun onClick(v: View?) {
+        //onClick attribute for the FloatingActionButton
+        startIntentForPicker()
+    }
+
+    private fun startIntentForPicker() {
+        EasyImage.openGallery(this, 0)
+    }
+
+    override fun onRequestPermissionsResult(requestCode: Int, permissions: Array<out String>, grantResults: IntArray) {
+        super.onRequestPermissionsResult(requestCode, permissions, grantResults)
+        if (requestCode == 12345) {
+            if (grantResults[0] == PackageManager.PERMISSION_GRANTED)
+            //The library requires write access to the External Storage,
+            //so ensure that the permission is granted
+                fab_take_photo.setOnClickListener(this)
+        }
+    }
+
+
+    override fun onActivityResult(requestCode: Int, resultCode: Int, data: Intent?) {
+        super.onActivityResult(requestCode, resultCode, data)
+        if (ActivityCompat.checkSelfPermission(this, Manifest.permission.WRITE_EXTERNAL_STORAGE)
+                == PackageManager.PERMISSION_GRANTED) {
+            EasyImage.handleActivityResult(requestCode, resultCode, data, this, object : DefaultCallback() {
+
+                override fun onImagePicked(imageFile: File?, source: EasyImage.ImageSource?, type: Int) {
+                    val bitmap = BitmapFactory.decodeFile(imageFile?.path)
+                    getLandmarkFromCloud(bitmap)
+                    imagePreview.setImageBitmap(bitmap)
+                    framePreview.visibility = View.VISIBLE
+                    btnRetry.visibility = View.GONE
+                }
+
+                override fun onImagePickerError(e: Exception?, source: EasyImage.ImageSource?, type: Int) {
+                    //Some error handling since no image was picked
+                }
+
+            })
+        }
+    }
+
+    private fun getLandmarkFromCloud(bitmap: Bitmap) {
+        val image = FirebaseVisionImage.fromBitmap(bitmap)
+        val detector = FirebaseVision.getInstance()
+                .visionCloudLandmarkDetector
+
+        detector.detectInImage(image)
+                .addOnCompleteListener {
+                    Log.e("TAG", "completed")
+                    for (firebaseVisionLandmarks in it.result) {
+                        val landmark = firebaseVisionLandmarks.landmark
+                        tvLocationName.text = landmark
+                        for (location in firebaseVisionLandmarks.locations) {
+                            val lat = location.latitude
+                            val long = location.longitude
+                            tvLatitude.text = lat.toString()
+                            tvLongitude.text = long.toString()
+                        }
+                        tvAccuracy.text = (firebaseVisionLandmarks.confidence * 100).toInt().toString()
+                    }
+                }
+                .addOnFailureListener {
+                    Toast.makeText(this, "Something went wrong", Toast.LENGTH_SHORT).show()
+                }
+                .addOnCompleteListener {
+                    sheetBehavior.state = BottomSheetBehavior.STATE_EXPANDED
+                }
+    }
+
+}