Android自定义日志打印 开发时打印正式上线时不打印

import android.util.Log;

/**
* Created by UFO.
*
* 说明：
* 改变代码中level的值，就可以控制日志的打印范围：
*      当level等于VERBOSE就可以把所有日志打印出；
*      当level等于WARN时就可以只打印警告以上级别的日志；
*      当level等于NOTHING时就可以把所有打印日志屏蔽掉,即在正式上线时不应将所有Log打印都屏蔽，只需将level改为NOTHING就好了。
*
* 用法：
*      如打印一行DEBUG级别的日志： LogUtil.d("TAG","debug log");
*/

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 = VERBOSE;
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.i(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.i(tag, msg);
}
}
public static void e(String tag,String msg){
if(level <= ERROR){
Log.i(tag, msg);
}
}
}