使用软导航栏正确检测屏幕尺寸(Detecting screensize correctly with soft navigation bar)

 错误是告诉你到底发生了什么问题; 你用太多的参数调用构造函数。 为了明白我的意思，请看看在makeRecord的默认实现中通常如何构建日志记录： 
 
def makeRecord(self, name, level, fn, lno, msg, args, exc_info, func=None, extra=None):
    """
    A factory method which can be overridden in subclasses to create
    specialized LogRecords.
    """
    rv = LogRecord(name, level, fn, lno, msg, args, exc_info, func)
    if extra is not None:
        for key in extra:
            if (key in ["message", "asctime"]) or (key in rv.__dict__):
                raise KeyError("Attempt to overwrite %r in LogRecord" % key)
            rv.__dict__[key] = extra[key]
    return rv
 
 请注意makeRecord如何使用一个extra参数，它不直接传递给LogRecord ？ 另一方面，你直接将它传递给LogRecord.__init__ ，这会导致错误。 
 
 从这里，你有两个选择; 您可以提供更完整的makeRecord实现，或者您可以尝试使用LoggerAdapter类，它应该可以帮助您用较少的代码实现相同的目标。 
 
 这是一个例子： 
 
# Common log info to be added to all logs reported with `log_adapter`
context = {'host': 'localhost'}

log = logging.getLogger('testing')
log.addHandler(logging.StreamHandler())
d = {'host': '192.168.0.1'}

log_adapter = logging.LoggerAdapter(log, context)
log_adapter.warning('Hi', d)
 
 如果您需要在每次记录日志时计算“主机”的值（例如），则可以使context成为类似字典的类的实例。 像这样： 
 
class LogContext(object):

    def __getitem__(self, key):
        if key == 'host':
            return 'localhost'
        raise KeyError(key)

    def __iter__(self):
        return iter(['host'])

log_adapter = logging.LoggerAdapter(log, LogContext())
log_adapter.warning('Hi', d)
 
 有一点需要注意LoggingAdapter ，它显然没有将所有便捷的快捷函数定义为普通的Logger类。 这就是为什么我已经调用了warning方法，而不是像上面那样warn 。 
 
 有关LoggingAdapter和添加上下文到日志的更多信息可以在python文档中找到。 
 
 注 - 我的示例中没有包含MyLogHandler ， MyLogFormatter或MongoLogger ，因为它们与问题/错误无关。 

The error is telling you exactly what's wrong; you are calling the constructor with too many arguments. To see what I mean, take a look at how log-records are ordinarily constructed in the default implementation of makeRecord:
 
def makeRecord(self, name, level, fn, lno, msg, args, exc_info, func=None, extra=None):
    """
    A factory method which can be overridden in subclasses to create
    specialized LogRecords.
    """
    rv = LogRecord(name, level, fn, lno, msg, args, exc_info, func)
    if extra is not None:
        for key in extra:
            if (key in ["message", "asctime"]) or (key in rv.__dict__):
                raise KeyError("Attempt to overwrite %r in LogRecord" % key)
            rv.__dict__[key] = extra[key]
    return rv
 
Notice how makeRecord takes an extra param that it doesn't pass directly to LogRecord? You, on the other hand, are passing that directly to LogRecord.__init__, which is causing the error.
 
From here, you've got two options; you could provide a more complete implementation of makeRecord, or you could try using the LoggerAdapter class which should help you achieve the same goal with less code.
 
Here's an example:
 
# Common log info to be added to all logs reported with `log_adapter`
context = {'host': 'localhost'}

log = logging.getLogger('testing')
log.addHandler(logging.StreamHandler())
d = {'host': '192.168.0.1'}

log_adapter = logging.LoggerAdapter(log, context)
log_adapter.warning('Hi', d)
 
If you need to calculate the value of 'host' (for example) each time something is logged, you could make context an instance of a class that looks like a dictionary. Like so:
 
class LogContext(object):

    def __getitem__(self, key):
        if key == 'host':
            return 'localhost'
        raise KeyError(key)

    def __iter__(self):
        return iter(['host'])

log_adapter = logging.LoggerAdapter(log, LogContext())
log_adapter.warning('Hi', d)
 
One thing to note about LoggingAdapter, it apparently doesn't define all of the handy shortcut functions as the ordinary Logger class. That's why I've called the warning method instead of warn as you did above.
 
More info on LoggingAdapter and adding context to your logs can be found in the python docs.
 
NOTE - I didn't include MyLogHandler, MyLogFormatter, or MongoLogger in my examples as they were not relevant to the issue/error.