diff --git a/audioPlayer.go b/audioPlayer.go
index 3fd8053..cbba431 100644
--- a/audioPlayer.go
+++ b/audioPlayer.go
@@ -9,7 +9,7 @@ type audioPlayerData struct {
 }
 
 // NewAudioPlayer create new MediaPlayer object and return it
-func NewAudioPlayer(session Session, params Params) MediaPlayer {
+func NewAudioPlayer(session Session, params Params) AudioPlayer {
 	view := new(audioPlayerData)
 	view.Init(session)
 	view.tag = "AudioPlayer"
diff --git a/videoPlayer.go b/videoPlayer.go
index 17158fe..0f50f5c 100644
--- a/videoPlayer.go
+++ b/videoPlayer.go
@@ -28,7 +28,7 @@ type videoPlayerData struct {
 }
 
 // NewVideoPlayer create new MediaPlayer object and return it
-func NewVideoPlayer(session Session, params Params) MediaPlayer {
+func NewVideoPlayer(session Session, params Params) VideoPlayer {
 	view := new(videoPlayerData)
 	view.Init(session)
 	view.tag = "VideoPlayer"
diff --git a/viewByID.go b/viewByID.go
index 91a2927..2714c0a 100644
--- a/viewByID.go
+++ b/viewByID.go
@@ -312,3 +312,27 @@ func VideoPlayerByID(rootView View, id string) VideoPlayer {
 	}
 	return nil
 }
+
+// ImageViewByID return a ImageView with id equal to the argument of the function or
+// nil if there is no such View or View is not ImageView
+func ImageViewByID(rootView View, id string) ImageView {
+	if view := ViewByID(rootView, id); view != nil {
+		if canvas, ok := view.(ImageView); ok {
+			return canvas
+		}
+		ErrorLog(`ImageViewByID(_, "` + id + `"): The found View is not ImageView`)
+	}
+	return nil
+}
+
+// TableViewByID return a TableView with id equal to the argument of the function or
+// nil if there is no such View or View is not TableView
+func TableViewByID(rootView View, id string) TableView {
+	if view := ViewByID(rootView, id); view != nil {
+		if canvas, ok := view.(TableView); ok {
+			return canvas
+		}
+		ErrorLog(`TableViewByID(_, "` + id + `"): The found View is not TableView`)
+	}
+	return nil
+}