android log.e()的使用,android - Using Log.d() or Log.e() in my code

本文介绍了如何在Android中有效使用Log.isLoggable()进行日志检查，以避免在发布版本中输出不必要的调试信息。建议在静态方法中封装Log调用，并通过系统属性或adb命令设置日志级别，以实现日志的动态控制。在发布应用时，可以使用Proguard移除调试日志，保留错误日志，以确保性能和隐私。

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Consider using this : isLoggable()

Checks to see whether or not a log for the specified tag is loggable at the specified level. The default level of any tag is set to INFO. This means that any level above and including INFO will be logged. Before you make any calls to a logging method you should check to see if your tag should be logged. You can change the default level by setting a system property: setprop log.tag. Where level is either VERBOSE, DEBUG, INFO, WARN, ERROR, ASSERT, or SUPPRESS. SUPPRESS will turn off all logging for your tag. You can also create a local.prop file that with the following in it: log.tag.= and place that in /data/local.prop

Personally for releases, I'd remove the debug logs and keep the error logs using Proguard.

It is better to wrap it like so:

public class MyLog {

public static void d(String tag, String msg) {

if (Log.isLoggable(tag, Log.DEBUG)) {

Log.d(tag, msg);

}

public static void i(String tag, String msg) {

if (Log.isLoggable(tag, Log.INFO)) {

Log.i(tag, msg);

}

} // and so on...