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Add content description to volume title in settings.

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Adds content description that is announced by talkback when a11y focus
is on volume preference. This improves talkback announcement when view changes.

Fixes: 285529113
Bug: 285455826
Fixes: 285487766
Test: atest VolumeSeekBarPreferenceControllerTest
Test: atest VolumeSeekBarPreferenceTest
Change-Id: Ibe80b4b1d489dc058df1cc79c96b034d5ddc6e56
This commit is contained in:
Michael Mikhail
2023-06-21 16:58:20 +00:00
parent 0e8bdf2fc0
commit 2f393303c9
9 changed files with 164 additions and 23 deletions
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41
src/com/android/settings/notification/VolumeSeekBarPreference.java
View File

@@ -47,10 +47,13 @@ public class VolumeSeekBarPreference extends SeekBarPreference {
protected SeekBar mSeekBar;
private int mStream;
private SeekBarVolumizer mVolumizer;
@VisibleForTesting
SeekBarVolumizer mVolumizer;
private Callback mCallback;
private Listener mListener;
private ImageView mIconView;
private TextView mSuppressionTextView;
private TextView mTitle;
private String mSuppressionText;
private boolean mMuted;
private boolean mZenMuted;
@@ -98,6 +101,10 @@ public class VolumeSeekBarPreference extends SeekBarPreference {
mCallback = callback;
}
public void setListener(Listener listener) {
mListener = listener;
}
public void onActivityResume() {
if (mStopped) {
init();
@@ -118,6 +125,7 @@ public class VolumeSeekBarPreference extends SeekBarPreference {
mSeekBar = (SeekBar) view.findViewById(com.android.internal.R.id.seekbar);
mIconView = (ImageView) view.findViewById(com.android.internal.R.id.icon);
mSuppressionTextView = (TextView) view.findViewById(R.id.suppression_text);
mTitle = (TextView) view.findViewById(com.android.internal.R.id.title);
init();
}
@@ -142,6 +150,9 @@ public class VolumeSeekBarPreference extends SeekBarPreference {
mMuted = muted;
mZenMuted = zenMuted;
updateIconView();
if (mListener != null) {
mListener.onUpdateMuteState();
}
}
@Override
public void onStartTrackingTouch(SeekBarVolumizer sbv) {
@@ -165,6 +176,9 @@ public class VolumeSeekBarPreference extends SeekBarPreference {
mVolumizer.setSeekBar(mSeekBar);
updateIconView();
updateSuppressionText();
if (mListener != null) {
mListener.onUpdateMuteState();
}
if (!isEnabled()) {
mSeekBar.setEnabled(false);
mVolumizer.stop();
@@ -175,7 +189,7 @@ public class VolumeSeekBarPreference extends SeekBarPreference {
if (mIconView == null) return;
if (mIconResId != 0) {
mIconView.setImageResource(mIconResId);
} else if (mMuteIconResId != 0 && mMuted && !mZenMuted) {
} else if (mMuteIconResId != 0 && isMuted()) {
mIconView.setImageResource(mMuteIconResId);
} else {
mIconView.setImageDrawable(getIcon());
@@ -208,6 +222,10 @@ public class VolumeSeekBarPreference extends SeekBarPreference {
updateSuppressionText();
}
protected boolean isMuted() {
return mMuted && !mZenMuted;
}
protected void updateSuppressionText() {
if (mSuppressionTextView != null && mSeekBar != null) {
mSuppressionTextView.setText(mSuppressionText);
@@ -216,6 +234,14 @@ public class VolumeSeekBarPreference extends SeekBarPreference {
}
}
/**
* Update content description of title to improve talkback announcements.
*/
protected void updateContentDescription(CharSequence contentDescription) {
if (mTitle == null) return;
mTitle.setContentDescription(contentDescription);
}
public interface Callback {
void onSampleStarting(SeekBarVolumizer sbv);
void onStreamValueChanged(int stream, int progress);
@@ -225,4 +251,15 @@ public class VolumeSeekBarPreference extends SeekBarPreference {
*/
void onStartTrackingTouch(SeekBarVolumizer sbv);
}
/**
* Listener to view updates in volumeSeekbarPreference.
*/
public interface Listener {
/**
* Listener to mute state updates.
*/
void onUpdateMuteState();
}
}