Android Accessibility for Everyone I/O Extended in Korea Android (2019.06.15) 첨부된 동영상과 함께 보실 분은 https://youtu.be/DWtL-i8k2QE 을 참고해주세요.

1. Android Accessibility
For Everyone
I/O 19’ Extended Korea Android
2019. 06. 15. Google Sta>up Campus

2. Android Accessibility
For Everyone
I/O 19’ Extended Korea Android
2019. 06. 15. Google Sta>up Campus
.
https://youtu.be/DWtL-i8k2QE !

3. Kyeongwan Kang
GDG Korea Android

4. Accessibility

5. Accessibility
Accessibility .

6. Accessibility is the design of products, devices, services, or
environments for people with disabilities.
Accessibility can be viewed as the "ability to access" and beneAt
from some system or entity. The concept focuses on enabling
access for people with disabilities, or special needs, or enabling
access through the use of assistive technology; however, research
and development in accessibility brings beneAts to everyone.
-Wikipedia (Accessibility)
Accessibility

7. (accessibility) , , .
“ability to access” .
,
,
.
-Wikipedia (Accessibility)
Accessibility
, .

8. 15%
258
( 123 , 25 , 34 )
- (2018 , )
15% 10 .

9. 15%
258
( 123 , 25 , 34 )
- (2018 , )
MAU 1000 ,
, , 1000 250
4 1 .

10. 78%
78%
.

11. What`s new in android
6.7 ,

12. accessibility
3600 .

13. Title
What’s Android Accessibility

14. •
•
•
•
•
Serving the right module
Title
extended
3 ( ) 9 ( )

15. Accessibility Menu

16. •
•
•

17. DaU Theme

18. extended
Dark Theme
• Android Q
•
•
•

19. Talk back
(Voice Assistant, Samsung)

20. Talk Back
• Screen Reader
• Google Talk Back
• Voice Assistant
• ,

21. Screen search

22. Screen Search
•
• Android Accessibility Suite 7.3
• View ContentDescription
•
• But Recycler View

24. 5 3 .
.

25. 5 3 .
affected .

26. •
•
•
•

27. <Button
android:id="@+id/backButton"
android:layout_width="36dp"
android:layout_height="36dp"
android:background=“@drawable/arrow”/>
<ImageButton
android:id="@+id/plusImageButotn"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="@drawable/black"
android:background="@null"/>
<ImageView
android:id="@+id/editImageView"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="@drawable/edit"
android:background="@null"/>

28. <Button
android:id="@+id/backButton"
android:layout_width="36dp"
android:layout_height="36dp"
android:background=“@drawable/arrow”/>
<ImageButton
android:id="@+id/plusImageButotn"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="@drawable/black"
android:background="@null"/>
<ImageView
android:id="@+id/editImageView"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="@drawable/edit"
android:background="@null"/>

29. <Button
android:id="@+id/backButton"
android:layout_width="36dp"
android:layout_height="36dp"
android:background=“@drawable/arrow”/>
<ImageButton
android:id="@+id/plusImageButotn"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="@drawable/black"
android:background="@null"/>
<ImageView
android:id="@+id/editImageView"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="@drawable/edit"
android:background="@null"/>

30. <Button
android:id="@+id/backButton"
android:layout_width="36dp"
android:layout_height="36dp"
android:background=“@drawable/arrow”/>
<ImageButton
android:id="@+id/plusImageButotn"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="@drawable/black"
android:background="@null"/>
<ImageView
android:id="@+id/editImageView"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="@drawable/edit"
android:background="@null"/>

31. <ImageButton
android:id="@+id/backButton"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:background="@null"
android:contentDescription=" "
android:padding="6dp"
android:src="@drawable/arrow" />
<ImageButton
android:id="@+id/plusImageButotn"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:background="@null"
android:contentDescription=" "
android:padding="6dp"
android:src="@drawable/add" />
<ImageView
android:id="@+id/editImageView"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:background="@null"
android:contentDescription=" "
android:padding="6dp"
android:src="@drawable/edit" />

32. <ImageButton
android:id="@+id/backButton"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:background="@null"
android:contentDescription=" "
android:padding="6dp"
android:src="@drawable/arrow" />
<ImageButton
android:id="@+id/plusImageButotn"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:background="@null"
android:contentDescription=" "
android:padding="6dp"
android:src="@drawable/add" />
<ImageView
android:id="@+id/editImageView"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:background="@null"
android:contentDescription=" "
android:padding="6dp"
android:src="@drawable/edit" />

33. • ( )
•
• contentDescription
( hint)
• ContentDescription > text > hint
(TextView)
• Text > hint > ContentDescription
EditText

34. •
•

35. • , ,
• BuZon, ImageBuZon, clickable
ImageView (onClickListener o)
“ ” .
•
“ ”
• Custom

36. if (TALKBACK_ON) {
view.setAccessibilityDelegate(new View.AccessibilityDelegate() {
@Override
public void onInitializeAccessibilityNodeInfo(View host, AccessibilityNodeInfo info) {
super.onInitializeAccessibilityNodeInfo(host, info);
AccessibilityNodeInfoCompat infoCompat = AccessibilityNodeInfoCompat.wrap(info);
AccessibilityNodeInfoCompat.AccessibilityActionCompat clickAction =
new AccessibilityNodeInfoCompat.AccessibilityActionCompat(
AccessibilityNodeInfoCompat.ACTION_CLICK, “ ");
infoCompat.addAction(clickAction);
}
});
}

37. • UI
.
•
• SnackBar
• Toast
• Custom
SendAccessibilityEvent
.

38. // ANNOUNCE
AccessibilityManager manager = (AccessibilityManager) context
.getSystemService(Context.ACCESSIBILITY_SERVICE);
AccessibilityEvent e = AccessibilityEvent.obtain();
e.setEventType(AccessibilityEvent.TYPE_ANNOUNCEMENT);
e.setClassName(context.getClass().getName());
e.setPackageName(context.getPackageName());
e.getText().add("some text");
manager.sendAccessibilityEvent(e);
//
AccessibilityEvent event = AccessibilityEvent.obtain(
AccessibilityEvent.TYPE_VIEW_FOCUSED);
event.setSource(view);
event.setClassName(view.getClass().getName());
event.setPackageName(view.getContext().getPackageName());
event.setEnabled(true);
event.setContentDescription(text);
view.sendAccessibilityEventUnchecked(event);

39. • EditText hint .
• ImageView android:impo>antForAccessibility=“no”
• TextView .
• Component . (SnackBar, Dialog )
• SendAccessibilityEvent
(View .)

42. Title

43. Everyone
can use android
.