Android Log 封装

package com.tv.ui.metro.utils;

/* * Copyright (C) 2010 Lytsing Huang http://lytsing.org * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * *      http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */

/** * Wrapper API for sending log output. */public class _Log {    protected static final String TAG = "MyApplication";

    public _Log() {    }

    /**     * Send a VERBOSE log message.     * @param msg The message you would like logged.     */    public static void v(String msg) {        android.util.Log.v(TAG, buildMessage(msg));    }

    /**     * Send a VERBOSE log message and log the exception.     * @param msg The message you would like logged.     * @param thr An exception to log     */    public static void v(String msg, Throwable thr) {        android.util.Log.v(TAG, buildMessage(msg), thr);    }

    /**     * Send a DEBUG log message.     * @param msg     */    public static void d(String msg) {        android.util.Log.d(TAG, buildMessage(msg));    }

    public static void dI() {        android.util.Log.d(TAG, buildMessage("IN"));    }    public static void dO() {        android.util.Log.d(TAG, buildMessage("OUT"));    }    /**     * Send a DEBUG log message and log the exception.     * @param msg The message you would like logged.     * @param tr An exception to log     */    public static void d(String msg, Throwable thr) {        android.util.Log.d(TAG, buildMessage(msg), thr);    }

    /**     * Send an INFO log message.     * @param msg The message you would like logged.     */    public static void i(String msg) {        android.util.Log.i(TAG, buildMessage(msg));    }

    /**     * Send a INFO log message and log the exception.     * @param msg The message you would like logged.     * @param thr An exception to log     */    public static void i(String msg, Throwable thr) {        android.util.Log.i(TAG, buildMessage(msg), thr);    }

    /**     * Send an ERROR log message.     * @param msg The message you would like logged.     */    public static void e(String msg) {        android.util.Log.e(TAG, buildMessage(msg));    }

    /**     * Send a WARN log message     * @param msg The message you would like logged.     */    public static void w(String msg) {        android.util.Log.w(TAG, buildMessage(msg));    }

    /**     * Send a WARN log message and log the exception.     * @param msg The message you would like logged.     * @param thr An exception to log     */    public static void w(String msg, Throwable thr) {        android.util.Log.w(TAG, buildMessage(msg), thr);    }

    /**     * Send an empty WARN log message and log the exception.     * @param thr An exception to log     */    public static void w(Throwable thr) {        android.util.Log.w(TAG, buildMessage(""), thr);    }

    /**     * Send an ERROR log message and log the exception.     * @param msg The message you would like logged.     * @param thr An exception to log     */    public static void e(String msg, Throwable thr) {        android.util.Log.e(TAG, buildMessage(msg), thr);    }

    /**     * Building Message     * @param msg The message you would like logged.     * @return Message String     */    protected static String buildMessage(String msg) {        StackTraceElement caller = new Throwable().fillInStackTrace().getStackTrace()[2];

        return new StringBuilder()                .append(caller.getClassName())                .append(".")                .append(caller.getMethodName())                .append("(): ")                .append(msg).toString();    }}