自己实现android的日志框架

(一)相关说明
为了熟悉github与Jcenter代码库的使用,编写了一个小的android日志框架,主要参考的是logger框架;

(二)相关知识点

  • android中获取类名,方法名,与代码行数:
StackTraceElement[] stackTrace = Thread.currentThread().getStackTrace();

int index = 4;
String className = stackTrace[index].getFileName();
String methodName = stackTrace[index].getMethodName();
int lineNumber = stackTrace[index].getLineNumber();
  • android中日志级别的定义:

1、Log.v 的输出颜色为黑色的,输出大于或等于VERBOSE日志级别的信息
2、Log.d的输出颜色是蓝色的,输出大于或等于DEBUG日志级别的信息
3、Log.i的输出为绿色,输出大于或等于INFO日志级别的信息
4、Log.w的输出为橙色, 输出大于或等于WARN日志级别的信息
5、Log.e的输出为红色,仅输出ERROR日志级别的信息.

(三)代码实现

package com.example.aaron.library;

import android.util.Log;

/** * Created by aaron on 15/11/27. * 模仿logger,创建自己的日志操作类 */
public class MLog {
    public static final String TAG = MLog.class.getSimpleName();
    /** * 控制变量,是否显示log日志 */
    public static boolean isShowLog = false;
    public static String defaultMsg = "";
    public static final int V = 1;
    public static final int D = 2;
    public static final int I = 3;
    public static final int W = 4;
    public static final int E = 5;

    /** * 初始化控制变量 * @param isShowLog */
    public static void init(boolean isShowLog) {
        MLog.isShowLog = isShowLog;
    }

    /** * 初始化控制变量和默认日志 * @param isShowLog * @param defaultMsg */
    public static void init(boolean isShowLog, String defaultMsg) {
        MLog.isShowLog = isShowLog;
        MLog.defaultMsg = defaultMsg;
    }

    public static void v() {
        llog(V, null, defaultMsg);
    }

    public static void v(Object obj) {
        llog(V, null, obj);
    }

    public static void v(String tag, Object obj) {
        llog(V, tag, obj);
    }

    public static void d() {
        llog(D, null, defaultMsg);
    }

    public static void d(Object obj) {
        llog(D, null, obj);
    }

    public static void d(String tag, Object obj) {
        llog(D, tag, obj);
    }

    public static void i() {
        llog(I, null, defaultMsg);
    }

    public static void i(Object obj) {
        llog(I, null, obj);
    }

    public static void i(String tag, String obj) {
        llog(I, tag, obj);
    }

    public static void w() {
        llog(W, null, defaultMsg);
    }

    public static void w(Object obj) {
        llog(W, null, obj);
    }

    public static void w(String tag, Object obj) {
        llog(W, tag, obj);
    }

    public static void e() {
        llog(E, null, defaultMsg);
    }

    public static void e(Object obj) {
        llog(E, null, obj);
    }

    public static void e(String tag, Object obj) {
        llog(E, tag, obj);
    }



    /** * 执行打印方法 * @param type * @param tagStr * @param obj */
    public static void llog(int type, String tagStr, Object obj) {
        String msg;
        if (!isShowLog) {
            return;
        }

        StackTraceElement[] stackTrace = Thread.currentThread().getStackTrace();

        int index = 4;
        String className = stackTrace[index].getFileName();
        String methodName = stackTrace[index].getMethodName();
        int lineNumber = stackTrace[index].getLineNumber();

        String tag = (tagStr == null ? className : tagStr);
        methodName = methodName.substring(0, 1).toUpperCase() + methodName.substring(1);

        StringBuilder stringBuilder = new StringBuilder();
        stringBuilder.append("[ (").append(className).append(":").append(lineNumber).append(")#").append(methodName).append(" ] ");

        if (obj == null) {
            msg = "Log with null Object";
        } else {
            msg = obj.toString();
        }
        if (msg != null) {
            stringBuilder.append(msg);
        }

        String logStr = stringBuilder.toString();

        switch (type) {
            case V:
                Log.v(tag, logStr);
                break;
            case D:
                Log.d(tag, logStr);
                break;
            case I:
                Log.i(tag, logStr);
                break;
            case W:
                Log.w(tag, logStr);
                break;
            case E:
                Log.e(tag, logStr);
                break;
        }
    }
}

(四)如何上传github
参考:http://blog.csdn.net/qq_23547831/article/details/50010419

(五)如何将代码上传至JCenter
参考:http://blog.csdn.net/qq_23547831/article/details/50017151

附:源码地址(github即使用方式)
https://github.com/yipianfengye/MLog

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