修改无障碍焦点秩序 [英] Modify accessibility focus order
问题描述
是否有可能改变无障碍焦点顺序?举例来说,如果我有3次并肩,与IDS厂景,视图2和视图3,有一个简单的方法,使无障碍重点去VIEW3当用户直接从厂景挥笔?
Is it possible to change the accessibility focus order? For example, if I have 3 views side by side, with ids view1, view2, and view3, is there a simple way to make the accessibility focus go to view3 when the user swipes right from view1?
下面是我已经试过:
我有一个线性布局以下。
I have the following in a linear layout.
<ImageView
android:layout_width="30dp"
android:layout_height="30dp"
android:id="@+id/imageView"
android:focusable="true"
android:nextFocusUp="@+id/imageView3"
android:nextFocusDown="@+id/imageView3"
android:nextFocusRight="@+id/imageView3"
android:nextFocusLeft="@+id/imageView3"
android:nextFocusForward="@+id/imageView3"
android:src="@drawable/ic_launcher"/>
<ImageView
android:layout_width="30dp"
android:layout_height="30dp"
android:id="@+id/imageView2"
android:focusable="true"
android:src="@drawable/ic_launcher"/>
<ImageView
android:layout_width="30dp"
android:layout_height="30dp"
android:id="@+id/imageView3"
android:focusable="true"
android:nextFocusUp="@+id/imageView2"
android:nextFocusDown="@+id/imageView2"
android:nextFocusRight="@+id/imageView2"
android:nextFocusLeft="@+id/imageView2"
android:nextFocusForward="@+id/imageView2"
android:src="@drawable/ic_launcher"/>
然后,我推出这个和地点的无障碍重点放在第一ImageView的。当向右滑动,移动到下一个项目,我希望它的无障碍焦点移到imageView3,而是它去imageView2。
Then, I launch this and place accessibility focus on the first imageView. Upon swiping right to move to the next item, I expect it to move accessibility focus to imageView3, but instead it goes to imageView2.
推荐答案
看起来你现在可以设置API的话语提示遍历顺序22+!因此,code会是这个样子:
Looks like you can now set the TalkBack traversal order for API 22+! So the code would look something like this:
<ImageView
android:layout_width="30dp"
android:layout_height="30dp"
android:id="@+id/imageView"
android:focusable="true"
android:src="@drawable/ic_launcher"/>
<ImageView
android:layout_width="30dp"
android:layout_height="30dp"
android:id="@+id/imageView2"
android:focusable="true"
android:accessibilityTraversalAfter="@id/ImageView3"
android:src="@drawable/ic_launcher"/>
<ImageView
android:layout_width="30dp"
android:layout_height="30dp"
android:id="@+id/imageView3"
android:focusable="true"
android:accessibilityTraversalAfter="@id/ImageView"
android:src="@drawable/ic_launcher"/>
的http://developer.android.com/reference/android/R.attr.html#accessibilityTraversalAfter
这篇关于修改无障碍焦点秩序的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持IT屋!