关于android Log的isLoggable定义

概述什么是isLoggable？isLoggable是android.util.Log提供的方法，用于检查指定Log的TAG的level是否满足打印条件，如满足则返回true反之则返回false。源码中关于isLoggable的注释isLoggable在源码中的注释如下：/***Checkstoseewhetherornotalogforthespecifiedta 什么是isLoggable？

isLoggable是androID.util.Log提供的方法，用于检查指定Log的TAG的level是否满足打印条件，如满足则返回true反之则返回false。

源码中关于isLoggable的注释

isLoggable在源码中的注释如下：

/**     * 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.<YOUR_LOG_TAG> <LEVEL>'     *  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.<YOUR_LOG_TAG>=<LEVEL>'     *  and place that in /data/local.prop.     *     * @param tag The tag to check.     * @param level The level to check.     * @return Whether or not that this is allowed to be logged.     * @throws IllegalArgumentException is thrown if the tag.length() > 23.     */    public static native boolean isLoggable(String tag, int level);

使用注意

isLoggable默认level为androID.util.Log.INFO；

只有 level >= INFO才能输出，即level >= INFO时isLoggable返回true，反之则返回false；

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