[Huawei Developers] Freemind R:
This article is originally from HUAWEI Developer Foum

Forum link: https://forums.developer.huawei.com/forumPortal/en/home​

About GymOut:

GymOut is a simple work out App which uses some of the features of HMS awareness Kit. In this, we have to set Gym location (here it is taking current location) and work out time. Once we enter into Gym it prompts us to plug in the head set to listen the work out music. The music will stop playing after the completion of work out /on leaving the gym.

​

An Introduction for Awareness Kit:

HUAWEI Awareness Kit provides your app with the ability to obtain contextual information including users' current time, location, behavior, audio device status, ambient light, weather, and nearby beacons. Through this features the app can gain insight into a user's current situation more efficiently, making it possible to deliver a smarter, more considerate user experience

· Capture API

The Capture API allows the app to request the current user status, such as time, location, behaviour, and whether a headset is connected. For example, it can request location for getting latitude and longitude.

· BarrierAPI

The Barrier API allows the app to set a combination of contextual conditions. When the preset contextual conditions are met, the app will receive a notification. We can even accommodate our app with different combinations of contextual conditions to support different use cases. For example, we will get notification once we enter into a specified location.

Software Requirements

Android Studio

Java JDK 1.8 or later

Huawei Mobile Services (APK) 4.0.0.300 or later

Integration

1. Create a project in android studio and Huawei AGC.

2. Provide the SHA-256 Key in App Information Section.

3. Provide storage location. (Selected Singapore here)

4. Download the agconnect-services.json from AGCand save into app directory.

5. In root build.gradle

Go to allprojects->repositories and buildscript->repositories and the given line.

maven { url 'http://developer.huawei.com/repo/' }

In dependency add class path

classpath 'com.huawei.agconnect:agcp:1.2.1.301'

6. In app build.gradle

We have to add signingConfigs and buildTypes, otherwise we have to create signed apk for awareness testing.

signingConfigs {
release {
storeFile file('store.jks')
keyAlias 'mykey'
keyPassword 'hmsapp'
storePassword 'hmsapp'
v1SigningEnabled true
v2SigningEnabled true
}
}

buildTypes {
release {
signingConfig signingConfigs.release
minifyEnabled false
proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
}
debug {
signingConfig signingConfigs.release
debuggable true
}
}

Add Implementation

implementation 'com.huawei.hms:awareness:1.0.4.301'

Apply plugin

apply plugin: 'com.huawei.agconnect'

7. The app need the following permissions

<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />
<uses-permission android:name="com.huawei.hms.permission.ACTIVITY_RECOGNITION" />
<uses-permission android:name="android.permission.ACTIVITY_RECOGNITION" />
<uses-permission android:name="android.permission.ACCESS_BACKGROUND_LOCATION" />

Code Implementation:

In this application we are using the following HMS Features:

Capture API

Location Capture: For getting gym Latitude and Longitude.

Barrier API

Location Barrier: To get notification when entering into Gym and exit from Gym .

Headset Barrier:To get alert to connect Head set for workout music

Time Barrier: To alert, once the time elapses the specified workout time.

To capture Location API using getLocation () function

private void getLocation() {
Awareness.getCaptureClient(this).getLocation()
.addOnSuccessListener(new OnSuccessListener<LocationResponse>() {
@Override
public void onSuccess(LocationResponse locationResponse) {
Location location = locationResponse.getLocation();
latitude=location.getLatitude();
longitude=location.getLongitude();
Toast.makeText(getApplicationContext(),"Longitude:" + longitude
+ ",Latitude:" + latitude,Toast.LENGTH_SHORT).show();
mLogView.printLog("Longitude:" + longitude
+ ",Latitude:" + latitude);

mp = MediaPlayer.create(getApplicationContext(), R.raw.audio);
mp.setLooping(true);
alert_stayTimeDialog();

//add_locationBarrier_enter
AwarenessBarrier enterBarrier = LocationBarrier.enter(latitude, longitude, radius);
Utils.addBarrier(getApplicationContext(), ENTER_BARRIER_LABEL, enterBarrier, mPendingIntent);

AwarenessBarrier exitBarrier = LocationBarrier.exit(latitude, longitude, radius);
Utils.addBarrier(getApplicationContext(), EXIT_BARRIER_LABEL, exitBarrier, mPendingIntent);

}
})
.addOnFailureListener(new OnFailureListener() {
@Override
public void onFailure(Exception e) {
Toast.makeText(getApplicationContext(),"Failed to get the location.",Toast.LENGTH_SHORT).show();
mLogView.printLog("Failed to get the location.");
Log.e(TAG, "Failed to get the location.", e);
}
});
mScrollView.postDelayed(()-> mScrollView.smoothScrollTo(0,mScrollView.getBottom()),200);
}

Using GymBarrierReceiver to receive the broadcast sent by Awareness Kit when the barrier status changes.

final class GymBarrierReceiver extends BroadcastReceiver {
@Override
public void onReceive(Context context, Intent intent) {
BarrierStatus barrierStatus = BarrierStatus.extract(intent);
String label = barrierStatus.getBarrierLabel();
int barrierPresentStatus = barrierStatus.getPresentStatus();

switch (label) {
case ENTER_BARRIER_LABEL:
if (barrierPresentStatus == BarrierStatus.TRUE) {
mLogView.printLog("You are in Gym");
alert_startWorkOutDialog();

} else if (barrierPresentStatus == BarrierStatus.FALSE) {
// mLogView.printLog("You are away from Gym");

} else {
mLogView.printLog("The location status is unknown.");
}
break;
case STAY_BARRIER_LABEL:
if (barrierPresentStatus == BarrierStatus.TRUE) {
mLogView.printLog("You have to spent "
+ workOutTime + " minutes in Gym");
} else if (barrierPresentStatus == BarrierStatus.FALSE) {
mLogView.printLog("Your time of duration in Gym is Over.");
} else {
mLogView.printLog("The location status is unknown.");
}
break;
case EXIT_BARRIER_LABEL:
if (barrierPresentStatus == BarrierStatus.TRUE) {
mLogView.printLog("You are exiting Gym");
mp.pause();
play_pause.setBackground(getDrawable(android.R.drawable.ic_media_play));
} else if (barrierPresentStatus == BarrierStatus.FALSE) {
// mLogView.printLog("You are in Gym");
} else {
mLogView.printLog("The location status is unknown.");
}
break;
case KEEPING_BARRIER_LABEL:
if (barrierPresentStatus == BarrierStatus.TRUE) {
mLogView.printLog("Audio is playing...");
play_pause.setVisibility(View.VISIBLE);

mp.start();
play_pause.setBackground(getDrawable(android.R.drawable.ic_media_pause));

} else if (barrierPresentStatus == BarrierStatus.FALSE) {
mLogView.printLog("Connect headset to play audio");
mp.pause();
play_pause.setBackground(getDrawable(android.R.drawable.ic_media_play));

} else {
mLogView.printLog("The headset status is unknown.");
}
break;

case CONNECTING_BARRIER_LABEL:
if (barrierPresentStatus == BarrierStatus.TRUE) {
mLogView.printLog("The headset is connecting. Audio is playing");
play_pause.setVisibility(View.VISIBLE);

mp.start();
play_pause.setBackground(getDrawable(android.R.drawable.ic_media_pause));

} else if (barrierPresentStatus == BarrierStatus.FALSE) {

} else {
mLogView.printLog("The headset status is unknown.");
}
break;
case DURING_TIME_PERIOD_BARRIER_LABEL:
if (barrierPresentStatus == BarrierStatus.TRUE) {
mLogView.printLog("Your Work out is "+workOutTime+" minutes.");
} else if (barrierPresentStatus == BarrierStatus.FALSE) {
mLogView.printLog("Work out time reached "+workOutTime+" minutes.");
} else {
mLogView.printLog("The time status is unknown.");
}
break;

default:
break;
}
mScrollView.postDelayed(()-> mScrollView.smoothScrollTo(0,mScrollView.getBottom()*3),200);

}
}

MediaPlayer is added as given :

MediaPlayer mp = MediaPlayer.create(this, R.raw.audio);
mp.setLooping(true);

CountDownTimer to notify remaining workout time:

public void countDown(long workOutInMs){
new CountDownTimer(workOutInMs,1000) {
@Override
public void onTick(long millisUntilFinished) {
int seconds = (int) (millisUntilFinished / 1000);
int minutes = seconds / 60;
seconds = seconds % 60;

workOut_txt.setText(String.format("%d:%02d", minutes, seconds));

// counter++;
}
@Override
public void onFinish() {
workOut_txt.setText("Your work out is over");
mp.pause();
play_pause.setBackground(getDrawable(android.R.drawable.ic_media_play));
play_pause.setVisibility(View.GONE);
}
}.start();
}

Added different barriers as given:

AwarenessBarrier enterBarrier = LocationBarrier.enter(latitude, longitude, radius);
Utils.addBarrier(getApplicationContext(), ENTER_BARRIER_LABEL, enterBarrier, mPendingIntent);

AwarenessBarrier exitBarrier = LocationBarrier.exit(latitude, longitude, radius);
Utils.addBarrier(getApplicationContext(), EXIT_BARRIER_LABEL, exitBarrier, mPendingIntent);

AwarenessBarrier stayBarrier = LocationBarrier.stay(latitude, longitude, radius, workOutInMs);
Utils.addBarrier(getApplicationContext(), STAY_BARRIER_LABEL, stayBarrier, mPendingIntent);

AwarenessBarrier keepingConnectedBarrier = HeadsetBarrier.keeping(HeadsetStatus.CONNECTED);
Utils.addBarrier(getApplicationContext(), KEEPING_BARRIER_LABEL, keepingConnectedBarrier, mPendingIntent);

AwarenessBarrier connectingBarrier = HeadsetBarrier.connecting();
Utils.addBarrier(getApplicationContext(), CONNECTING_BARRIER_LABEL, connectingBarrier, mPendingIntent);

AwarenessBarrier timePeriodBarrier = TimeBarrier.duringTimePeriod(currentTimeStamp,
currentTimeStamp + workOutInMs);
Utils.addBarrier(getApplicationContext(), DURING_TIME_PERIOD_BARRIER_LABEL,
timePeriodBarrier, mPendingIntent);

The function alert_stayTimeDialog() is used to capture user workout time.

void alert_stayTimeDialog(){
final EditText edittext = new EditText(this);
edittext.setText("0");
edittext.setInputType(InputType.TYPE_NUMBER_FLAG_SIGNED | InputType.TYPE_CLASS_NUMBER);
AlertDialog.Builder alert = new AlertDialog.Builder(
this);

alert.setMessage("Your Workout Time");
alert.setTitle("Enter time in minutes ");
alert.setView(edittext);
alert.setPositiveButton("OK", new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int whichButton) {
//What ever you want to do with the value
Editable YouEditTextValue = edittext.getText();
//OR
int stayTime = Integer.parseInt(edittext.getText().toString());

//Add the code after success
SharedPreferences.Editor editor = gymOutPref.edit();
editor.putBoolean("SET_WORKOUT", true);
editor.putInt("SET_WORKOUT_TIME", stayTime);
editor.commit();

workOutTime=stayTime;
set_workout.setEnabled(false);
set_workout.setBackground(getDrawable(R.drawable.button_style_disable));
delete_workout.setEnabled(true);
delete_workout.setBackground(getDrawable(R.drawable.button_style));
workOut_txt.setText("WorkOut Time:"+stayTime+" Mnts");

Toast.makeText(getApplicationContext(), "WorkOut Time: " + stayTime, Toast.LENGTH_LONG).show();

}
});

alert.setNegativeButton("Cancel", new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int whichButton) {
// what ever you want to do with No option.
}
});

alert.show();
}