Extension property to get/set bitmap from ImageView

src/androidTest/java/androidx/core/widget/ImageViewTest.kt

@@ -0,0 +1,35 @@
+package androidx.core.widget
+
+import android.graphics.Bitmap
+import org.junit.Before
+import android.support.test.InstrumentationRegistry
+import android.widget.ImageView
+import org.junit.Assert.assertNull
+import org.junit.Assert.assertTrue
+import org.junit.Test
+
+class ImageViewTest {
+
+    private lateinit var fakeBitmap: Bitmap
+    private val context = InstrumentationRegistry.getContext()
+
+    @Before
+    fun setup() {
+        val dim = 100
+        fakeBitmap = Bitmap.createBitmap(dim, dim, Bitmap.Config.ARGB_8888)
+    }
+
+    @Test
+    fun setBitmapTest() {
+        val imageView = ImageView(context)
+        imageView.bitmap = fakeBitmap
+        assertTrue(fakeBitmap.sameAs(imageView.bitmap))
+    }
+
+    @Test
+    fun emptyBitmapTest() {
+        val imageView = ImageView(context)
+        assertNull(imageView.bitmap)
+    }
+
+}

src/main/java/androidx/core/widget/ImageView.kt

@@ -0,0 +1,28 @@
+package androidx.core.widget
+
+import android.graphics.Bitmap
+import android.graphics.drawable.BitmapDrawable
+import android.widget.ImageView
+
+
+/**
+ * Returns Bitmap if set to imageview if not than it will return null
+ *
+ * ```
+ * val myBitmap:Bitmap? = imageView.bitmap
+ * ```
+ *
+ * Setting a bitmap to this property using [ImageView.setImageBitmap]
+ *
+ * ```
+ * imageView.bitmap = myBitmap
+ * ```
+ */
+inline var ImageView.bitmap: Bitmap?
+    get() {
+        val drawable = drawable as? BitmapDrawable
+        return drawable?.bitmap
+    }
+    set(value) {
+        setImageBitmap(value)
+    }