Android 定义全局LOG打印日志，并显示调用者相关信息

public class LogUtils {    private static final boolean VERBOSE = true;    private static final boolean DEBUG = true;    private static final boolean INFO = true;    private static final boolean WARN = true;    private static final boolean ERROR = true;    private static final String SEPARATOR = ",";    public static void v(String message) {        if (VERBOSE) {            StackTraceElement stackTraceElement = Thread.currentThread().getStackTrace()[3];            String tag = getDefaultTag(stackTraceElement);            Log.v(tag, getLogInfo(stackTraceElement) + message);        }    }    public static void v(String tag, String message) {        if (VERBOSE) {            StackTraceElement stackTraceElement = Thread.currentThread().getStackTrace()[3];            if (TextUtils.isEmpty(tag)) {                tag = getDefaultTag(stackTraceElement);            }            Log.v(tag, getLogInfo(stackTraceElement) + message);        }    }    public static void d(String message) {        if (DEBUG) {            StackTraceElement stackTraceElement = Thread.currentThread().getStackTrace()[3];            String tag = getDefaultTag(stackTraceElement);            Log.d(tag, getLogInfo(stackTraceElement) + message);        }    }    public static void d(String tag, String message) {        if (DEBUG) {            StackTraceElement stackTraceElement = Thread.currentThread().getStackTrace()[3];            if (TextUtils.isEmpty(tag)) {                tag = getDefaultTag(stackTraceElement);            }            Log.d(tag, getLogInfo(stackTraceElement) + message);        }    }    public static void i(String message) {        if (INFO) {            StackTraceElement stackTraceElement = Thread.currentThread().getStackTrace()[3];            String tag = getDefaultTag(stackTraceElement);            Log.i(tag, message);        }    }    public static void i(String tag, String message) {        if (INFO) {            StackTraceElement stackTraceElement = Thread.currentThread().getStackTrace()[3];            if (TextUtils.isEmpty(tag)) {                tag = getDefaultTag(stackTraceElement);            }            Log.i(tag, getLogInfo(stackTraceElement) + message);        }    }    public static void w(String message) {        if (WARN) {            StackTraceElement stackTraceElement = Thread.currentThread().getStackTrace()[3];            String tag = getDefaultTag(stackTraceElement);            Log.w(tag, getLogInfo(stackTraceElement) + message);        }    }    public static void w(String tag, String message) {        if (WARN) {            StackTraceElement stackTraceElement = Thread.currentThread().getStackTrace()[3];            if (TextUtils.isEmpty(tag)) {                tag = getDefaultTag(stackTraceElement);            }            Log.w(tag, getLogInfo(stackTraceElement) + message);        }    }    public static void e(String message) {        if (ERROR) {            StackTraceElement stackTraceElement = Thread.currentThread().getStackTrace()[3];            String tag = getDefaultTag(stackTraceElement);            Log.e(tag, message);        }    }    public static void e(String tag, String message) {        if (ERROR) {            StackTraceElement stackTraceElement = Thread.currentThread().getStackTrace()[3];            if (TextUtils.isEmpty(tag)) {                tag = getDefaultTag(stackTraceElement);            }            Log.e(tag, getLogInfo(stackTraceElement) + message);        }    }    /**  * 获取默认的TAG名称. 比如在MainActivity.java中调用了日志输出. 则TAG为MainActivity  */  public static String getDefaultTag(StackTraceElement stackTraceElement) {        String fileName = stackTraceElement.getFileName();        String stringArray[] = fileName.split("\\.");        String tag = stringArray[0];        return tag;    }    /**  * 输出日志所包含的信息  */  public static String getLogInfo(StackTraceElement stackTraceElement) {        StringBuilder logInfoStringBuilder = new StringBuilder();        // 获取线程名        String threadName = Thread.currentThread().getName();        // 获取线程ID        long threadID = Thread.currentThread().getId();        // 获取文件名.即xxx.java        String fileName = stackTraceElement.getFileName();        // 获取类名.即包名+类名        String className = stackTraceElement.getClassName();        // 获取方法名称        String methodName = stackTraceElement.getMethodName();        // 获取生日输出行数        int lineNumber = stackTraceElement.getLineNumber();        logInfoStringBuilder.append("[ ");        logInfoStringBuilder.append("threadID=" + threadID).append(SEPARATOR);        logInfoStringBuilder.append("threadName=" + threadName).append(SEPARATOR);        logInfoStringBuilder.append("fileName=" + fileName).append(SEPARATOR);        logInfoStringBuilder.append("className=" + className).append(SEPARATOR);        logInfoStringBuilder.append("methodName=" + methodName).append(SEPARATOR);        logInfoStringBuilder.append("lineNumber=" + lineNumber);        logInfoStringBuilder.append(" ] ");        return logInfoStringBuilder.toString();    }}
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