可以展示行号的Android Log 工具

可以显示行号的Android Log 工具
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);}}}}