LogUtils打印日志工具类

这是一个从XUtils3中摘抄出来的打印日志工具类。这个类打印日志比较详细，可以打印类名、方法名。

public class LogUtils {    public static String customTagPrefix = "x_log";    private static boolean isDebug = true;    private LogUtils() {    }    public static void isDebug(boolean b) {        isDebug = b;    }    private static String generateTag() {        StackTraceElement caller = new Throwable().getStackTrace()[2];        String tag = "%s.%s(L:%d)";        String callerClazzName = caller.getClassName();        callerClazzName = callerClazzName.substring(callerClazzName.lastIndexOf(".") + 1);        tag = String.format(tag, callerClazzName, caller.getMethodName(), caller.getLineNumber());        tag = TextUtils.isEmpty(customTagPrefix) ? tag : customTagPrefix + ":" + tag;        return tag;    }    public static void d(String content) {        if (!isDebug) return;        String tag = generateTag();        Log.d(tag, content);    }    public static void d(String content, Throwable tr) {        if (!isDebug) return;        String tag = generateTag();        Log.d(tag, content, tr);    }    public static void e(String content) {        if (!isDebug) return;        String tag = generateTag();        Log.e(tag, content);    }    public static void e(String content, Throwable tr) {        if (!isDebug) return;        String tag = generateTag();        Log.e(tag, content, tr);    }    public static void i(String content) {        if (!isDebug) return;        String tag = generateTag();        Log.i(tag, content);    }    public static void i(String content, Throwable tr) {        if (!isDebug) return;        String tag = generateTag();        Log.i(tag, content, tr);    }    public static void v(String content) {        if (!isDebug) return;        String tag = generateTag();        Log.v(tag, content);    }    public static void v(String content, Throwable tr) {        if (!isDebug) return;        String tag = generateTag();        Log.v(tag, content, tr);    }    public static void w(String content) {        if (!isDebug) return;        String tag = generateTag();        Log.w(tag, content);    }    public static void w(String content, Throwable tr) {        if (!isDebug) return;        String tag = generateTag();        Log.w(tag, content, tr);    }    public static void w(Throwable tr) {        if (!isDebug) return;        String tag = generateTag();        Log.w(tag, tr);    }    public static void wtf(String content) {        if (!isDebug) return;        String tag = generateTag();        Log.wtf(tag, content);    }    public static void wtf(String content, Throwable tr) {        if (!isDebug) return;        String tag = generateTag();        Log.wtf(tag, content, tr);    }    public static void wtf(Throwable tr) {        if (!isDebug) return;        String tag = generateTag();        Log.wtf(tag, tr);    }}