Android Class Hierarchy and Directed Graphs

Below you can find both a Tree list view and a Directed Graph of several Android Java Packages for several API levels.

At the bottom there are a few direct graphs with a viewer that supports panning and zooming but I recommend you download the full size picture to examine it in more detail. I also provide links to a few other class diagram tools.

The source code and program executable used to parse the Android code and generate the class hierarchy diagrams can be found on here:
(old 2018) JavaTree - parse java code into class diagrams
(new 2019) llclasses - parse java code into class diagrams

• Android version dashboard
• Android API Platform Highlights
• Android API adoption rate
• Android API changes from 20 to 21
• Android API changes from 25 to 26
• Android API changes from 26 to 27
• Android API changes from 27 to 28
• Android API changes from 28 to 29
• Android API changes from 29 to 30
• Android API changes from 30 to 31

Tree (list) of Java
Exceptions
api 28

Class tree diagram for Kitkat (API 19) 4.4

Tree (list) of classes
View package
api 19

Tree (list) of classes
Widget package
api 19

Tree (list) of classes
App package
api 19

Class tree diagram for Lollipop (API 21) 5.0

Tabular (list) of classes
All api 21
** Very long list

Tree (list) of classes
View package
api 21

Tree (list) of classes
Widget package
api 21

Tree (list) of classes
App package
api 21

Tree (list) of classes
Util package
api 21

Class tree diagram for Lollipop (API 22) 5.1

Tabular (list) of classes
All api 22
** Very long list

Tree (list) of classes
View package
api 22

Tree (list) of classes
Widget package
api 22

Tree (list) of classes
App package
api 22

Tree (list) of classes
Util package
api 22

Class tree diagram for Marshmallow (API 23) 6.x

Tabular (list) of classes
All api 23
** Very long list

Tree (list) of classes
View package
api 23

Tree (list) of classes
Widget package
api 23

Tree (list) of classes
App package
api 23

Tree (list) of classes
Util package
api 23

Class tree diagram for Nougat (API 24) 7.0

Tabular (list) of classes
All api 24
** Very long list

Tree (list) of classes
View package
api 24

Tree (list) of classes
Widget package
api 24

Tree (list) of classes
App package
api 24

Tree (list) of classes
Util package
api 24

Class tree diagram for Nougat (API 25) 7.1

Tabular (list) of classes
All api 25
** Very long list

Tree (list) of classes
View package
api 25

Tree (list) of classes
Widget package
api 25

Tree (list) of classes
App package
api 25

Tree (list) of classes
Util package
api 25

Class tree diagram for Oreo (API 26) 8.0

Tabular (list) of classes
All api 26
** Very long list

Tree (list) of classes
View package
api 26

Tree (list) of classes
Widget package
api 26

Tree (list) of classes
App package
api 26

Tree (list) of classes
Util package
api 26

Class tree diagram for Oreo (API 27) 8.1

Tabular (list) of classes
All api 27
** Very long list

Tree (list) of classes
View package
api 27

Tree (list) of classes
Widget package
api 27

Tree (list) of classes
App package
api 27

Tree (list) of classes
Util package
api 27

Class tree diagram for Pie (API 28) 9.0

Tabular (list) of classes
All api 28
** Very long list

Tree (list) of classes
View package
api 28

Tree (list) of classes
Widget package
api 28

Tree (list) of classes
App package
api 28

Tree (list) of classes
Util package
api 28

Class tree diagram for Pie (API 29) 10.0

Tabular (list) of classes
All api 29
** Very long list

Tree (list) of classes
View package
api 29

Tree (list) of classes
Widget package
api 29

Tree (list) of classes
App package
api 29

Tree (list) of classes
Util package
api 29

Class tree diagram for Pie (API 30) 11.0

Tabular (list) of classes
All api 30
** Very long list

Tree (list) of classes
View package
api 30

Tree (list) of classes
Widget package
api 30

Tree (list) of classes
App package
api 30

Tree (list) of classes
Util package
api 30

The directed graphs are produced by Graphviz using a "dot" file generated by my Java parser.

Android (api 21) Widget Package - View and ViewGroup class

Full size digraph of View classes api 21

Pan and Zoom View (api 21) class hierarchy graphs

View (Spread)

---

ViewGroup (Spread)

---

View (Rows)

---

ViewGroup (Rows)

1x Magnify

Directed class diagrams Android packages

Directed graph View
Package api 23

Directed graph Widget
Package api 23

Directed graph View
Package api 24

Directed graph Widget
Package api 24

Directed graph View
Package api 25

Directed graph Widget
Package api 25

Directed graph View
Package api 26

Directed graph Widget
Package api 26

Directed graph View
Package api 27

Directed graph Widget
Package api 27

Class Diagram Tools / Sites

• JavaTree - parse java code into class diagrams
• Class Visualizer - Interactive class diagrams from Java bytecode
• Java - Map class hierarchy