LogUtil

public class LogUtil {
/**
* 关闭日志输出
*/
private static boolean OPEN_LOG = true;
/**
* 关闭DEBUG日志输出
*/
private static boolean DEBUG = true;
/**
* TAG 名称
*/
private static String tag = "tag";
private final String mClassName;
private static LogUtil log;
private static final String USER_NAME = "tag";

private LogUtil(String name) {
mClassName = name;
}

/**
* Get The Current Function Name
*
* @return Name
*/
private String getFunctionName() {
StackTraceElement[] sts = Thread.currentThread().getStackTrace();
if (sts == null) {
return null;
}
for (StackTraceElement st : sts) {
if (st.isNativeMethod()) {
continue;
}
if (st.getClassName().equals(Thread.class.getName())) {
continue;
}
if (st.getClassName().equals(this.getClass().getName())) {
continue;
}
return mClassName + "[ " + Thread.currentThread().getName() + ": " + st.getFileName() + ":" + st.getLineNumber() + " " + st.getMethodName() + " ]";
}
return null;
}

public static void i(Object str) {
print(Log.INFO, str);
}

public static void d(Object str) {
print(Log.DEBUG, str);
}

public static void v(Object str) {
print(Log.VERBOSE, str);
}

public static void w(Object str) {
print(Log.WARN, str);
}

public static void e(Object str) {
print(Log.ERROR, str);
}

/**
* 用于区分不同接口数据 打印传入参数
*
* @param index
* @param str
*/

private static void print(int index, Object str) {
if (!OPEN_LOG) {
return;
}
if (log == null) {
log = new LogUtil(USER_NAME);
}
String name = log.getFunctionName();
if (name != null) {
str = name + " - " + str;
}

// Close the debug log When DEBUG is false
if (!DEBUG) {
if (index <= Log.DEBUG) {
return;
}
}
switch (index) {
case Log.VERBOSE:
Log.v(tag, str.toString());
break;
case Log.DEBUG:
Log.d(tag, str.toString());
break;
case Log.INFO:
Log.i(tag, str.toString());
break;
case Log.WARN:
Log.w(tag, str.toString());
break;
case Log.ERROR:
Log.e(tag, str.toString());
break;
default:
break;
}
}
}