Android出力ログ制御

import android.content.Context;
import android.util.Log;
import android.widget.Toast;

public class LogUtil {
   public static final String TAG = "log";

   public static void log(String tag, String msg, boolean isDebug, int type) {
      if (isDebug) {
         switch (type) {
         case Log.VERBOSE:
            Log.v(tag, msg);
            break;
         case Log.DEBUG:
            Log.d(tag, msg);
            break;
         case Log.INFO:
            Log.i(tag, msg);
            break;
         case Log.WARN:
            Log.w(tag, msg);
            break;
         case Log.ERROR:
            Log.e(tag, msg);
            break;
         default:
            Log.v(tag, msg);
            break;
         }
      }
   }

   public static void log(String tag, String msg, int type) {
      log(tag, msg, Constant.DebugMode, type);
   }

   public static void log(String tag, String msg) {
      log(tag, msg, Constant.DebugMode, Log.VERBOSE);
   }

   public static void e(String tag, String msg) {
      log(tag, msg, Constant.DebugMode, Log.ERROR);
   }

   public static void i(String tag, String msg) {
      log(tag, msg, Constant.DebugMode, Log.INFO);
   }

   public static void w(String tag, String msg) {
      log(tag, msg, Constant.DebugMode, Log.WARN);
   }

   public static void v(String tag, String msg) {
      log(tag, msg, Constant.DebugMode, Log.VERBOSE);
   }

   public static void d(String tag, String msg) {
      log(tag, msg, Constant.DebugMode, Log.DEBUG);
   }

   public static void log(String msg) {
      log(TAG, msg, Constant.DebugMode, Log.VERBOSE);
   }

   public static void xn(String msg) {
      log("xn", msg, Constant.DebugMode, Log.DEBUG);
   }

   /**
    *   toast
    * 
    * @param context
    * @param text
    * @param duration
    */
   public static void show(Context context, String text, int duration) {
      if (context == null || StrUtil.isEmpty(text)) {
         log(TAG, "loggerUtil show args is invalid!!!", Log.ERROR);
         return;
      }
      if (duration >= 3000) {
         duration = Toast.LENGTH_LONG;
      } else {
         duration = Toast.LENGTH_SHORT;
      }
      Toast.makeText(context, text, duration).show();
   }

   public static void show(Context context, String text) {
      show(context, text, 0);
   }

   public static void showNetError(Context context) {
      if (context == null) {
         log(TAG, "showNetError context is null!!!", Log.ERROR);
         return;
      }
      try {
         show(context, "    ");
      } catch (Exception e) {
         e.printStackTrace();
         log(TAG, "showNetError toast error!!!", Log.ERROR);
      }
   }

   public static void System(String content) {
      if (Constant.DebugMode) {
         System.out.println(content);
      }
   }
}