Added dialog dissmiss event listener

Added helper method to allow the creator of a dialog to run some code when the dialog is dismissed. #141
Dhaval2404 · Dec 19, 2020 · 1de8b03 · 1de8b03
1 parent eac8256
commit 1de8b03
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Showing 4 changed files with 67 additions and 3 deletions.
diff --git a/README.md b/README.md
@@ -214,6 +214,16 @@ Almost 90% of the app that I have developed has an Image upload feature. Along w
         }
         .start()
     ```
+ *  Intercept Dialog dismiss event
+
+	```kotlin
+    ImagePicker.with(this)
+    	.setDismissListener {
+    		// Handle dismiss event
+    		Log.d("ImagePicker", "onDismiss");
+    	}
+    	.start()
+    ```
 
  *  Specify Directory to store captured, cropped or compressed images
 

diff --git a/imagepicker/src/main/kotlin/com/github/dhaval2404/imagepicker/ImagePicker.kt b/imagepicker/src/main/kotlin/com/github/dhaval2404/imagepicker/ImagePicker.kt
@@ -7,6 +7,7 @@ import android.widget.Toast
 import androidx.appcompat.app.AppCompatActivity
 import androidx.fragment.app.Fragment
 import com.github.dhaval2404.imagepicker.constant.ImageProvider
+import com.github.dhaval2404.imagepicker.listener.DismissListener
 import com.github.dhaval2404.imagepicker.listener.ResultListener
 import com.github.dhaval2404.imagepicker.util.DialogHelper
 import com.github.florent37.inlineactivityresult.kotlin.startForResult
@@ -27,6 +28,8 @@ open class ImagePicker {
         const val RESULT_ERROR = 64
 
         internal const val EXTRA_IMAGE_PROVIDER = "extra.image_provider"
+        internal const val EXTRA_CAMERA_DEVICE = "extra.camera_device"
+
         internal const val EXTRA_IMAGE_MAX_SIZE = "extra.image_max_size"
         internal const val EXTRA_CROP = "extra.crop"
         internal const val EXTRA_CROP_X = "extra.crop_x"
@@ -118,6 +121,11 @@ open class ImagePicker {
 
         private var imageProviderInterceptor: ((ImageProvider) -> Unit)? = null
 
+        /**
+         * Dialog dismiss event listener
+         */
+        private var dismissListener: DismissListener? = null
+
         /**
          * File Directory
          *
@@ -249,6 +257,26 @@ open class ImagePicker {
             return this
         }
 
+        /**
+         * Sets the callback that will be called when the dialog is dismissed for any reason.
+         */
+        fun setDismissListener(listener: DismissListener): Builder {
+            this.dismissListener = listener
+            return this
+        }
+
+        /**
+         * Sets the callback that will be called when the dialog is dismissed for any reason.
+         */
+        fun setDismissListener(listener: (() -> Unit)): Builder {
+            this.dismissListener = object : DismissListener {
+                override fun onDismiss() {
+                    listener.invoke()
+                }
+            }
+            return this
+        }
+
         /**
          * Start Image Picker Activity
          */
@@ -292,7 +320,7 @@ open class ImagePicker {
                         startActivity(reqCode)
                     }
                 }
-            })
+            }, dismissListener)
         }
 
         /**
@@ -310,7 +338,7 @@ open class ImagePicker {
                         completionHandler?.invoke(Activity.RESULT_CANCELED, intent)
                     }
                 }
-            })
+            }, dismissListener)
         }
 
         /**

diff --git a/imagepicker/src/main/kotlin/com/github/dhaval2404/imagepicker/listener/DismissListener.kt b/imagepicker/src/main/kotlin/com/github/dhaval2404/imagepicker/listener/DismissListener.kt
@@ -0,0 +1,18 @@
+package com.github.dhaval2404.imagepicker.listener
+
+/**
+ * Interface used to allow the creator of a dialog to run some code when the
+ * dialog is dismissed.
+ *
+ * @author Dhaval Patel
+ * @version 1.8
+ * @since 19 December 2020
+ */
+interface DismissListener {
+
+    /**
+     * This method will be invoked when the dialog is dismissed.
+     */
+    fun onDismiss()
+
+}
diff --git a/imagepicker/src/main/kotlin/com/github/dhaval2404/imagepicker/util/DialogHelper.kt b/imagepicker/src/main/kotlin/com/github/dhaval2404/imagepicker/util/DialogHelper.kt
@@ -5,6 +5,7 @@ import android.view.LayoutInflater
 import androidx.appcompat.app.AlertDialog
 import com.github.dhaval2404.imagepicker.R
 import com.github.dhaval2404.imagepicker.constant.ImageProvider
+import com.github.dhaval2404.imagepicker.listener.DismissListener
 import com.github.dhaval2404.imagepicker.listener.ResultListener
 import kotlinx.android.synthetic.main.dialog_choose_app.view.*
 
@@ -21,7 +22,11 @@ internal object DialogHelper {
      * Show Image Provide Picker Dialog. This will streamline the code to pick/capture image
      *
      */
-    fun showChooseAppDialog(context: Context, listener: ResultListener<ImageProvider>) {
+    fun showChooseAppDialog(
+        context: Context,
+        listener: ResultListener<ImageProvider>,
+        dismissListener: DismissListener?
+    ) {
         val layoutInflater = LayoutInflater.from(context)
         val customView = layoutInflater.inflate(R.layout.dialog_choose_app, null)
 
@@ -34,6 +39,9 @@ internal object DialogHelper {
             .setNegativeButton(R.string.action_cancel) { _, _ ->
                 listener.onResult(null)
             }
+            .setOnDismissListener {
+                dismissListener?.onDismiss()
+            }
             .show()
 
         // Handle Camera option click