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我目前正在为大学建立一个计步器应用程序。我最近实现了 OAuth 屏幕，它（在许多错误之后）终于可以工作了。

今晚我继续下一步添加视觉计步器，但是，当我构建并运行我的代码时，OAuth 屏幕不再出现？我今天根本没有接触连接页面，只是创建了一个带有可视计步器的新 Java 类。

我真的很想知道为什么这不再显示，感谢任何帮助！

更新：我添加了一些捕捉点来找出我的代码出错的地方（因为没有显示错误）。我已将其范围缩小到 onCreate 函数中的 authInProgress 方法。不知道这意味着什么，因为这对我来说有点新鲜。指纹和 OAuth 同意都与 Firebase 一起正确设置。

这是我的连接类：

public class ConnectTrackerFirst extends AppCompatActivity implements OnDataPointListener,
        GoogleApiClient.ConnectionCallbacks,
        GoogleApiClient.OnConnectionFailedListener {

private static final int REQUEST_OAUTH = 1;
private static final String AUTH_PENDING = "auth_state_pending";
private boolean authInProgress = false;
private GoogleApiClient mApiClient;

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.connect_tracker_first);


    // failing at this statement

    if (savedInstanceState != null) {
        authInProgress = savedInstanceState.getBoolean(AUTH_PENDING);
    }

    // ---------------------

    mApiClient = new GoogleApiClient.Builder(this)
            .addApi(Fitness.SENSORS_API)
            .addScope(new Scope(Scopes.FITNESS_ACTIVITY_READ_WRITE))
            .addConnectionCallbacks(this)
            .addOnConnectionFailedListener(this)
            .build();


}

@Override
protected void onStart() {
    super.onStart();
    mApiClient.connect();
}

@Override
public void onConnected(Bundle bundle) {

}

@Override
public void onConnectionSuspended(int i) {

}

@Override
public void onConnectionFailed(ConnectionResult connectionResult) {
    if( !authInProgress ) {
        try {
            authInProgress = true;
            connectionResult.startResolutionForResult( ConnectTrackerFirst.this, REQUEST_OAUTH );
        } catch(IntentSender.SendIntentException e ) {

        }
    } else {
        Log.e( "GoogleFit", "authInProgress" );
    }
}

@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
    super.onActivityResult(requestCode, resultCode, data);
    if (requestCode == REQUEST_OAUTH) {
        authInProgress = false;
        if (resultCode == RESULT_OK) {
            if (!mApiClient.isConnecting() && !mApiClient.isConnected()) {
                mApiClient.connect();
            }
        } else if (resultCode == RESULT_CANCELED) {
            Log.e("GoogleFit", "RESULT_CANCELED");
        }
    } else {
        Log.e("GoogleFit", "requestCode NOT request_oauth");
    }
}

private void registerFitnessDataListener(DataSource dataSource, DataType dataType) {

    SensorRequest request = new SensorRequest.Builder()
            .setDataSource( dataSource )
            .setDataType( dataType )
            .setSamplingRate( 3, TimeUnit.SECONDS )
            .build();

    Fitness.SensorsApi.add( mApiClient, request, this )
            .setResultCallback(new ResultCallback<Status>() {
                @Override
                public void onResult(Status status) {
                    if (status.isSuccess()) {
                        Log.e( "GoogleFit", "SensorApi successfully added" );
                    }
                }
            });
}

@Override
public void onDataPoint(DataPoint dataPoint) {
    for( final Field field : dataPoint.getDataType().getFields() ) {
        final Value value = dataPoint.getValue( field );
        runOnUiThread(new Runnable() {
            @Override
            public void run() {
                Toast.makeText(getApplicationContext(), "Field: " + field.getName() + " Value: " + value, Toast.LENGTH_SHORT).show();
            }
        });
    }
}

@Override
protected void onStop() {
    super.onStop();

    Fitness.SensorsApi.remove( mApiClient, this )
            .setResultCallback(new ResultCallback<Status>() {
                @Override
                public void onResult(Status status) {
                    if (status.isSuccess()) {
                        mApiClient.disconnect();
                    }
                }
            });
}

@Override
protected void onSaveInstanceState(Bundle outState) {
    super.onSaveInstanceState(outState);
    outState.putBoolean(AUTH_PENDING, authInProgress);
}
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