在onCreate()中没有调用日志语句

时间:2012-12-18 18:30:36

标签: android logcat oncreate

我的Log方法中有一系列onCreate()语句用于调试,但有时它们不会打印在我的LogCat中。有没有人知道的任何理由?

也许我误解了活动生命周期的基础知识。我访问了the developer's page,但它仍然没有意义。

让我澄清一下,如果我卸载应用程序然后再次从Eclipse启动它,则会显示Log调用。但是,我正在运行测试,以便在应用程序功能运行后查看它。

我有一个MainMenu活动,它源于多个其他活动。当我卸载应用程序并重新启动它时,它会打印出我希望打印的内容。然后,我转到设备的设置和Force Quit应用程序(这是正确的做法吗?)。之后,我再次打开我的应用程序。 Log方法中没有onCreate()条消息,但当我转到其他活动时,我的MainMenu onPause()onStop()方法有{{} 1}}正确打印到LogCat的消息。

有什么想法吗?

编辑:

我想在重新启动时添加,Log方法中的Log消息也会被跳过。

如果您有兴趣,这是我的onCreate / onStart / onPause / onStop方法。内部有很多重复的代码,试图找出重新启动应用程序时调用的方法。但是,不应该有所作为,我觉得这是我的重启应用程序的方法的问题。

onStart()

在onStart()

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();
            }
        }
    }

}

的onPause()

 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" );
        }
    }
}

的onStop()

@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() );
    }
}

1 个答案:

答案 0 :(得分:3)

Application.onCreate()日志记录遇到了同样的问题。我发现如果我将过滤器从“仅显示选定的应用程序”更改为“无过滤器”并在LogCat中搜索所使用的TAG,那么我可以看到日志消息。