Log statements not being called in onCreate()

Question

I have a series of Log statements in my onCreate() method for debugging, but sometimes they just aren't printed in my LogCat. Is there any reasoning for this that anyone is aware of?

Maybe I'm misunderstanding the basics of an Activity's life cycle. I have visited the developer's page, but it still makes no sense.

Let me clarify that the Log calls are displayed if I uninstall the application and then launch it from Eclipse again. However, I am running tests to see the applications functionality once it has already been run.

I have a MainMenu Activity which stems to multiple other activities. When I uninstall the application and re-launch it, it prints what I would expect it to print. Then, I go to my device's settings and Force Quit the application (Is this the right thing to do?). After that, I open my application up again. There is no Log messages from the onCreate() method, but when I move to a different Activity, my MainMenu's onPause() and onStop() methods have Log messages that are printed properly to LogCat.

Any ideas?

EDIT:

I want to add that on a restart, Log messages in the onStart() method are also skipped.

Here is my onCreate/onStart/onPause/onStop methods if you're interested. There is a lot of repeated code within, that was done to try to find out what method was called when the app was restarted. Shouldn't make a difference though, I feel like this is a problem with my method of restarting the application.

public void onCreate(Bundle savedInstanceState) {
    // This calls all inherited methods, as this is a subclass of Activity.
    super.onCreate(savedInstanceState);
    if(D) Log.e(TAG, "+++ ON CREATE +++");
    Log.i( TAG, "Whats going onnnn" );


    // Set the view the main.xml
    setContentView(R.layout.main);
    RelayAPIModel.bluetoothConnected = false;
    // Initialize the connection.
    setupConnection();
    Log.i( TAG, "Whats going onnnn2" );

    // Check how if bluetooth is enabled on this device.
    mService.checkBluetoothState();
    // Initialize stuff from PilotMain() method
    initMain();
    Log.i( TAG, "Whats going onnnn3" );
    // Add listeners to all of the buttons described in main.xml
    buildButtons();
    Log.i( "HERE", "HERE" );
    // If the adapter is null, then Bluetooth is not supported
    if (mService.getAdapter() == null) {
        Toast.makeText(this, R.string.toast_bt_not_avail, Toast.LENGTH_LONG).show();
        finish();
        return;
    }
    savedStuff = (SerializableObjects)LocalObjects.readObjectFromFile( getApplicationContext(), "LastDevice.txt" );
    if( savedStuff != null ) {
        hasLastDevice = true;
        Log.i( "HAS", "LAST DEVICE" );
        Log.i( "HAS", savedStuff.getName() );
    } else {
        hasLastDevice = false;
        Log.i( "HAS NO", "LAST DEVICE" );
    }

    pairedDeviceList = new ArrayList<BluetoothDevice>();
    pairedDevices = mService.getAdapter().getBondedDevices();

    for( BluetoothDevice device: pairedDevices ) {
        pairedDeviceList.add( device );
    }
    if( hasLastDevice ) {
        for( int i = 0; i < pairedDeviceList.size(); i++ ) {
            Log.i( "1 HERE HERE", pairedDeviceList.get( i ).getName() );
            Log.i( "1 HEUH?I@JD", savedStuff.getName() );
            if( pairedDeviceList.get( i ).getName().equals( savedStuff.getRealName() ) ) {
                // THIS IS THE DEVICE WE NEED
                previousDevice = pairedDeviceList.get( i );
                i = pairedDeviceList.size();
            }
        }
    }

}

onStart()

 public void onStart() {
    super.onStart();
    if(D) Log.e(TAG, "++ ON START ++");



    savedStuff = (SerializableObjects)LocalObjects.readObjectFromFile( getApplicationContext(), "LastDevice.txt" );
    if( savedStuff != null ) {
        hasLastDevice = true;
        Log.i( "HAS", "LAST DEVICE" );
        Log.i( "HAS", savedStuff.getName() );
    } else {
        hasLastDevice = false;
        Log.i( "HAS NO", "LAST DEVICE" );
    }

    pairedDeviceList = new ArrayList<BluetoothDevice>();
    pairedDevices = mService.getAdapter().getBondedDevices();

    for( BluetoothDevice device: pairedDevices ) {
        pairedDeviceList.add( device );
    }
    if( hasLastDevice ) {
        for( int i = 0; i < pairedDeviceList.size(); i++ ) {
            Log.i( "2 HERE HERE", pairedDeviceList.get( i ).getName() );
            Log.i( "2 HEUH?I@JD", savedStuff.getName() );
            if( pairedDeviceList.get( i ).getName().equals( savedStuff.getRealName() ) ) {
                // THIS IS THE DEVICE WE NEED
                previousDevice = pairedDeviceList.get( i );
                i = pairedDeviceList.size();
            }
        }
    }


    // If BT is not on, request that it be enabled.
    // setupChat() will then be called during onActivityResult
    if (!mService.getAdapter().isEnabled()) {
        Log.i( TAG, "first !isEnabled " );
        Intent enableIntent = new Intent(BluetoothAdapter.ACTION_REQUEST_ENABLE);
        startActivityForResult(enableIntent, REQUEST_ENABLE_BT);
        Log.i( TAG, "second !isEnabled" );
    // Otherwise, setup the connection
    } else {
        if (mService == null) {
            Log.i( TAG, "setupConnection BEFORE" );
            setupConnection();
            Log.i( TAG, "setupConnection AFTER" );
        }
    }
}

onPause()

@Override
public synchronized void onPause() {
    super.onPause();
    if(D) Log.e(TAG, "- ON PAUSE -");


    savedStuff = (SerializableObjects)LocalObjects.readObjectFromFile( getApplicationContext(), "LastDevice.txt" );
    if( savedStuff != null ) {
        hasLastDevice = true;
        Log.i( "HAS", "LAST DEVICE" );
        Log.i( "HAS", savedStuff.getName() );
    } else {
        hasLastDevice = false;
        Log.i( "HAS NO", "LAST DEVICE" );
    }

    pairedDeviceList = new ArrayList<BluetoothDevice>();
    pairedDevices = mService.getAdapter().getBondedDevices();

    for( BluetoothDevice device: pairedDevices ) {
        pairedDeviceList.add( device );
    }
    if( hasLastDevice ) {
        for( int i = 0; i < pairedDeviceList.size(); i++ ) {
            Log.i( "4 HERE HERE", pairedDeviceList.get( i ).getName() );
            Log.i( "4 HEUH?I@JD", savedStuff.getName() );
            if( pairedDeviceList.get( i ).getName().equals( savedStuff.getRealName() ) ) {
                // THIS IS THE DEVICE WE NEED
                previousDevice = pairedDeviceList.get( i );
                i = pairedDeviceList.size();
            }
        }
    }




    if( savedStuff != null ) {
        Log.i( "HAS", savedStuff.getName() );
    }
}

onStop()

public void onStop() {
    super.onStop();
    if(D) Log.e(TAG, "-- ON STOP --");
    if( savedStuff != null ) {
        Log.i( "HAS", savedStuff.getName() );
    }
    //  Relay();
}

Answer 1

I had the same problem with Application.onCreate() logging. I discovered that if I changed the filter from “Show only selected application” to “No Filters” and searched LogCat for the TAG used, then I could see the log messages.