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Change-Id: Icc563ff2765af2117525fe7b78e3ce708dd5afc4
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Bug:6141864
Change-Id: If25966fb02a4063b8ca08d6466168a8244833ff6
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These had been separated into two activites while the BluetoothVoiceDialer
was being worked on, but it's a lot of duplicate code. Now there is a single
activity that can run in either bluetooth or non-bluetooth mode, depending
on how it is started.
The state transitions are slightly simpler when running in non-bluetooth
mode, because it does not use text to speech to inform the user about
what it is doing.
Change-Id: Iddf84108a84420917073fa18999d7394ca308400
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Bug: 2537307
The recognizer has a limit on the size of each semantic value
in the grammar. Now that we are storing both the package name
and class name there, it's pretty easy to overflow that limit,
causing the grammar initialization to fail. With this change,
only the spoken word is stored in the grammar (i.e. "calendar").
The mapping of words to package name/class name is stored
explicitly in a hashTable inside the commandRecognizerClient,
which circumvents the recognizer's fixed limit.
Bug: 2497802
If the orientation changes while an alert dialog is up,
the dialog would leak and causes an assertion failure.
With this change the VoiceDialerActivity uses the more
modern system of using dialogs, which automatically
brings down and recreates the dialog upon orientation
changes. The BluetoothVoiceDialerActivity can't handle
this right now, it's state machine is much more
complicated. For now, it just forces itself to be in
protrait mode all of the time.
Change-Id: I127c860b6db51426a93daf1df2d71c1c32673de5
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* Eliminate the Retry state from the Bluetooth Voicedialer. Now
if the recognizer returns zero results, it will simply return to the
Listening for Command state, and expect the user to state a new
"call", or "dial" command.
* The voicedialer is no longer allowed to open any applications when
running from bluetooth. There may be security problems with
applications coming up over the lock screen.
* Make the Bluetooth VoiceDialer handle error conditions better,
now it will display an error message and exit if the Bluetooth
connection drops, if the TTS system cannot be initialized, or if
the recognizer returns a fatal error.
* Make the VoiceDialerTester work again, so it should be easier
to test recognition accuracy from many different speakers.
Change-Id: Ic123648c22cf83598a641dd4cc664476261f5063
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Bug: 2432200
When using voicedialing without being able to see or interact with the
screen, it is more important to keep the number of matches small. There
is now a setting on the CommandRecognizerEngine called "minimizeResults".
If this is set, then the CommandRecognizerEngine will in most cases return
only the highest confidence result.
It will return multiple results only in the case where it is unsure which phone
to call a particular person on. When this occurs, the BluetoothVoiceDialer
will announce the person it is about to call, and which phone types are available
(i.e. home, work, mobile, other), then begin listening for the the user to
indicate which phone.
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Bug: 2432200
This adds a new BluetoothVoiceDialerActivity,
because the flow for bluetooth is so different from the regular VoiceDialerActivity.
This involved breaking RecognizerEngine's direct dependence on VoiceDialerActivity to
make callbacks on. RecognizerEngine now makes callbacks on an interface called RecognizerClient,
which is implemented by several different helper classes for different reasons.
I've made RecognizerEngine an abstract base class, it handles some general setup, logging, etc.
but it is up to the subclasses to set up the grammar and handle the results when recognition
succeeds. There are currently two subclasses, the CommandRecognizerEngine recognizes
phrases to call people, dial numbers, and open applications. The YesNoRecognizerEngine recognizes
"yes" and "no".
Known issues as of this checkin:
* 8khz audio has not been validated, it's not certain that the Recognizer is getting a good audio stream.
* There is still a problem with audio routing, the TTS output switches randomly between the speaker and
the headset.
* only the simplest case is supported, there's not a clean solution when there are multiple
possible matches.
* there are cases where the activity really should wait for the TTS utterance to finish before
moving on.
* we don't have a solution for when the phone is locked and the user activates bluetooth voicedial.
* the flow may or may not be ideal, the "no matches, try again" option may not be useful. We will
let some people try this and then revisit the approach.
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Change-Id: I05f5ab2f107ae21560185dbd98e8096cc6b3e668
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