私は現在、Google Fit API を使用しようとしています。これは API を使用する初めてのアプリであり、主に Google のドキュメントに従っています。
以下は、問題があると思われるコードです
私が抱えている問題は、歩数カウンターを更新していないように見えることです。
public class MainActivity extends Activity
implements GoogleApiClient.ConnectionCallbacks, GoogleApiClient.OnConnectionFailedListener {
private static final String TAG = "FitActivity";
//[START Auth_Variable_References]
private static final int REQUEST_OAUTH = 1;
// [END auth_variable_references]
private GoogleApiClient mClient = null;
int mInitialNumberOfSteps = 0;
private TextView mStepsTextView;
private boolean mFirstCount = true;
// Create Builder View
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
mStepsTextView = (TextView) findViewById(R.id.textview_number_of_steps);
}
private void connectFitness() {
Log.i(TAG, "Connecting...");
// Create the Google API Client
mClient = new GoogleApiClient.Builder(this)
// select the Fitness API
.addApi(Fitness.API)
// specify the scopes of access
.addScope(new Scope(Scopes.FITNESS_ACTIVITY_READ))
.addScope(new Scope(Scopes.FITNESS_LOCATION_READ))
.addScope(new Scope(Scopes.FITNESS_BODY_READ_WRITE))
// provide callbacks
.addConnectionCallbacks(this)
.addOnConnectionFailedListener(this)
.build();
// Connect the Google API client
mClient.connect();
}
// Manage OAuth authentication
@Override
public void onConnectionFailed(ConnectionResult result) {
// Error while connecting. Try to resolve using the pending intent returned.
if (result.getErrorCode() == ConnectionResult.SIGN_IN_REQUIRED ||
result.getErrorCode() == FitnessStatusCodes.NEEDS_OAUTH_PERMISSIONS) {
try {
// Request authentication
result.startResolutionForResult(this, REQUEST_OAUTH);
} catch (IntentSender.SendIntentException e) {
Log.e(TAG, "Exception connecting to the fitness service", e);
}
} else {
Log.e(TAG, "Unknown connection issue. Code = " + result.getErrorCode());
}
}
@Override
public void onActivityResult(int requestCode, int resultCode, Intent data) {
if (requestCode == REQUEST_OAUTH) {
if (resultCode == RESULT_OK) {
// If the user authenticated, try to connect again
mClient.connect();
}
}
}
@Override
public void onConnectionSuspended(int i) {
// If your connection gets lost at some point,
// you'll be able to determine the reason and react to it here.
if (i == GoogleApiClient.ConnectionCallbacks.CAUSE_NETWORK_LOST) {
Log.i(TAG, "Connection lost. Cause: Network Lost.");
} else if (i == GoogleApiClient.ConnectionCallbacks.CAUSE_SERVICE_DISCONNECTED) {
Log.i(TAG, "Connection lost. Reason: Service Disconnected");
}
}
@Override
public void onConnected(Bundle bundle) {
Log.i(TAG, "Connected!");
// Now you can make calls to the Fitness APIs.
invokeFitnessAPIs();
}
private void invokeFitnessAPIs() {
// Create a listener object to be called when new data is available
OnDataPointListener listener = new OnDataPointListener() {
@Override
public void onDataPoint(DataPoint dataPoint) {
for (Field field : dataPoint.getDataType().getFields()) {
Value val = dataPoint.getValue(field);
updateTextViewWithStepCounter(val.asInt());
}
}
};
//Specify what data sources to return
DataSourcesRequest req = new DataSourcesRequest.Builder()
.setDataSourceTypes(DataSource.TYPE_DERIVED)
.setDataTypes(DataType.TYPE_STEP_COUNT_DELTA)
.build();
// Invoke the Sensors API with:
// - The Google API client object
// - The data sources request object
PendingResult<DataSourcesResult> pendingResult =
Fitness.SensorsApi.findDataSources(mClient, req);
// Build a sensor registration request object
SensorRequest sensorRequest = new SensorRequest.Builder()
.setDataType(DataType.TYPE_STEP_COUNT_CUMULATIVE)
.setSamplingRate(1, TimeUnit.SECONDS)
.build();
// Invoke the Sensors API with:
// - The Google API client object
// - The sensor registration request object
// - The listener object
PendingResult<Status> regResult =
Fitness.SensorsApi.add(mClient,
new SensorRequest.Builder()
.setDataType(DataType.TYPE_STEP_COUNT_DELTA)
.build(),
listener);
// 4. Check the result asynchronously
regResult.setResultCallback(new ResultCallback<Status>()
{
@Override
public void onResult(Status status) {
if (status.isSuccess()) {
Log.d(TAG, "listener registered");
// listener registered
} else {
Log.d(TAG, "listener not registered");
// listener not registered
}
}
});
}
// Update the Text Viewer with Counter of Steps..
private void updateTextViewWithStepCounter(final int numberOfSteps) {
runOnUiThread(new Runnable() {
@Override
public void run() {
Toast.makeText(getBaseContext(), "On Datapoint!", Toast.LENGTH_SHORT);
if(mFirstCount && (numberOfSteps != 0)) {
mInitialNumberOfSteps = numberOfSteps;
mFirstCount = false;
}
if(mStepsTextView != null){
mStepsTextView.setText(String.valueOf(numberOfSteps - mInitialNumberOfSteps));
}
}
});
}
//Start
@Override
protected void onStart() {
super.onStart();
mFirstCount = true;
mInitialNumberOfSteps = 0;
if (mClient == null || !mClient.isConnected()) {
connectFitness();
}
}
//Stop
@Override
protected void onStop() {
super.onStop();
if(mClient.isConnected() || mClient.isConnecting()) mClient.disconnect();
mInitialNumberOfSteps = 0;
mFirstCount = true;
}
}