当我们们使用Android Stuido时候,经常需要打印Log,而Android Studio自带的Log使用又较为繁琐且无法打印超长Log,所以自己封装一个Log工具类,大家直接CV即可.

public class MyLog {

    //读取BuildConfig.LOG_DEBUG 签名时为FALSE 不打印 debug时为true 打印
    public static void i(String tag, String message) {
        if (BuildConfig.LOG_DEBUG) {
            int max_str_length = 2001 - tag.length();
            //大于4000时
            while (message.length() > max_str_length) {
                Log.i(tag, message.substring(0, max_str_length));
                message = message.substring(max_str_length);
            }
            //剩余部分
            Log.i(tag, message);
        }
    }

    public static void d(String tag, String message) {
        if (BuildConfig.LOG_DEBUG) {
            int max_str_length = 2001 - tag.length();
            //大于4000时
            while (message.length() > max_str_length) {
                Log.d(tag, message.substring(0, max_str_length));
                message = message.substring(max_str_length);
            }
            //剩余部分
            Log.d(tag, message);
        }
    }

    public static void e(String tag, String message) {
        if (BuildConfig.LOG_DEBUG) {
            int max_str_length = 2001 - tag.length();
            //大于4000时
            while (message.length() > max_str_length) {
                Log.e(tag, message.substring(0, max_str_length));
                message = message.substring(max_str_length);
            }
            //剩余部分
            Log.e(tag, message);
        }
    }


    // json打印
    public static String format(String mJson){
        StringBuilder soruce=new StringBuilder(mJson);
        if(mJson==null||mJson.equals("")){
            return null;
        }
        int offset=0;//目标字符串插入空格偏移量
        int bOffset=0;//空格偏移量
        for(int i=0;i<mJson.length();i++){
            char charAt=mJson.charAt(i);
            if(charAt=='{'||charAt=='['){
                bOffset+=4;
                soruce.insert(i+offset+1,"\n"+generateBlank(bOffset));
                offset+=(bOffset+1);
            }else if(charAt==','){
                soruce.insert(i+offset+1,"\n"+generateBlank(bOffset));
                offset+=(bOffset+1);
            }else if(charAt=='}'||charAt==']'){
                bOffset-=4;
                soruce.insert(i+offset,"\n"+generateBlank(bOffset));
                offset+=(bOffset+1);
            }
        }
        return soruce.toString();
    }

    /**
     * 打印
     * @param shouldShowAll 是否将全部打印出来
     */
    public static void print(String mJson,boolean shouldShowAll){
        if(!BuildConfig.LOG_DEBUG) return;
        if(mJson==null) return;
        try {
            System.out.println("----------print begin-----------");
            String willPrintString = format(mJson);
            if (!shouldShowAll) {
                System.out.println(willPrintString);
            } else {
                int length = willPrintString.length();
                int index = 0;
                while (length > 2000) {
                    System.out.println(willPrintString.substring(index * 2000, (index + 1) * 2000));
                    length -= 2000;
                    index++;
                }
                System.out.println(willPrintString.substring(index * 2000));
            }
            System.out.println("----------print end-----------");
        }catch (Exception e){
            e.printStackTrace();
        }

    }

    private static String generateBlank(int num){
        StringBuilder stringBuilder=new StringBuilder();
        for(int i=0;i<num;i++){
            stringBuilder.append(" ");
        }
        return stringBuilder.toString();
    }

}

使用方式同样也很简单直接在使用地方调用即可

     public void completed(String response) {
                MyLog.e("话题Id",response);
              mVO = new Gson().fromJson(response,HomeTopicVO.class);
              mAdapter.setNewData(mVO.getData());