Android 的Log 类只能以TAG的方式却分不同类的信息，这里利用反射的方式，将Log所在的行号和类名抓出来，以后转交测试的时候如果看到log的消息就可以快速定位软件的bug
package com.tcl.navigator.utils;import android.util.Log;public class LogUtils { private static final boolean DEBUG = true; private static final String TAG = "LogUtils.java"; public static void e(String message) { if (DEBUG) { StackTraceElement[] elements = Thread.currentThread().getStackTrace(); if (elements.length < 4) { Log.e(TAG, "Stack to shallow"); }else{ String fullClassName = elements[3].getClassName(); String className = fullClassName.substring(fullClassName.lastIndexOf(".") + 1); String methodName = elements[3].getMethodName(); int lineNumber = elements[3].getLineNumber(); Log.e(className + "." + methodName + "():" + lineNumber,message); } } } public static void d(String message) { if (DEBUG) { StackTraceElement[] elements = Thread.currentThread().getStackTrace(); if (elements.length < 3) { Log.e(TAG, "Stack to shallow"); }else{ String fullClassName = elements[3].getClassName(); String className = fullClassName.substring(fullClassName.lastIndexOf(".") + 1); String methodName = elements[3].getMethodName(); int lineNumber = elements[3].getLineNumber(); Log.d(className + "." + methodName + "():" + lineNumber,message); } } } public static void i(String message) { if (DEBUG) { StackTraceElement[] elements = Thread.currentThread().getStackTrace(); if (elements.length < 3) { Log.e(TAG, "Stack to shallow"); }else{ String fullClassName = elements[3].getClassName(); String className = fullClassName.substring(fullClassName.lastIndexOf(".") + 1); String methodName = elements[3].getMethodName(); int lineNumber = elements[3].getLineNumber(); Log.i(className + "." + methodName + "():" + lineNumber,message); } } } public static void w(String message) { if (DEBUG) { StackTraceElement[] elements = Thread.currentThread().getStackTrace(); if (elements.length < 3) { Log.e(TAG, "Stack to shallow"); }else{ String fullClassName = elements[3].getClassName(); String className = fullClassName.substring(fullClassName.lastIndexOf(".") + 1); String methodName = elements[3].getMethodName(); int lineNumber = elements[3].getLineNumber(); Log.w(className + "." + methodName + "():" + lineNumber,message); } } } public static void v(String message) { if (DEBUG) { StackTraceElement[] elements = Thread.currentThread().getStackTrace(); if (elements.length < 3) { Log.e(TAG, "Stack to shallow"); }else{ String fullClassName = elements[3].getClassName(); String className = fullClassName.substring(fullClassName.lastIndexOf(".") + 1); String methodName = elements[3].getMethodName(); int lineNumber = elements[3].getLineNumber(); Log.v(className + "." + methodName + "():" + lineNumber,message); } } } }