自定义日志工具

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import android.util.Log;/** * Created by Xiongxl on 2017/2/20. */public class LogUtil{    public static final int VERBOSE = 1;    public static final int DEBUG = 2;    public static final int INFO = 3;    public static final int WARN = 4;    public static final int ERROR = 5;    public static final int NOTHING = 6;    public static int level = NOTHING;    public static void v(String tag, String msg)    {        if (level <= VERBOSE)        {            Log.v(tag, msg);        }    }    public static void d(String tag, String msg)    {        if (level <= DEBUG)        {            Log.d(tag, msg);        }    }    public static void i(String tag, String msg)    {        if (level <= INFO)        {            Log.i(tag, msg);        }    }    public static void w(String tag, String msg)    {        if (level <= WARN)        {            Log.w(tag, msg);        }    }    public static void e(String tag, String msg)    {        if (level <= ERROR)        {            Log.e(tag, msg);        }    }}

    定义打印日志的级别，系统自带的打印功能一共有5个级别，所以定义6个静态常量，其中五个对应于系统自带的五个等级，另外一个NOTHING表示不打印任何日志，和一个用于调节打印内容的变量level。当项目正常发布以后，将level设置为NOTHING，此时将不进行日志打印操作。

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