1.1、常量类Const.java

/**
 * Created by wblobin on 2016/8/29.
 * qq：563084073
 */
public class Const {
 
    public static final DecimalFormat df4 = new DecimalFormat("0.0000");
    public static final DecimalFormat df3 = new DecimalFormat("0.000");
    public static final DecimalFormat df2 = new DecimalFormat("0.00");
    public static final DecimalFormat df1 = new DecimalFormat("0.0");
    public static final DecimalFormat df0 = new DecimalFormat("0");

    public static final String K_DATE = "date";
    public static final String K_UPDATETIME = "UpdateTime";
    public static final String K_CLOSE = "Close";
    public static final String K_OPEN = "Open";
    public static final String K_HIGH = "High";
    public static final String K_LOW = "Low";
    public static final String K_VOLUME = "Volume";

}

2.1时间工具类 TimeUtils.java

import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.TimeZone;

/**
 * Created by wblobin on 2016/8/29.
 * qq：563084073
 */
public class TimeUtils {

    // 获得提交服务器的同步time
    public static String getUnixTime( ) { 
        return String.valueOf((int) (System.currentTimeMillis() / 1000 ));
    }

    public static String time2Date(String timestampString, String formats) {
        try{
            Long timestamp = Long.parseLong(timestampString) * 1000;
            SimpleDateFormat sdf = new SimpleDateFormat(formats);
            sdf.setTimeZone(TimeZone.getTimeZone("GMT+8"));

            String date = sdf.format(new Date(timestamp));
            return date;
        }catch (Exception e){

        }
        return timestampString;
    }

 
}

3.1格式化右边值得精确度VolFormatter .java

import com.github.mikephil.charting.components.YAxis;
import com.github.mikephil.charting.formatter.YAxisValueFormatter;

import java.text.DecimalFormat;

/**
 * Created by wblobin on 2016/8/29.
 * qq：563084073
 */
public class VolFormatter implements YAxisValueFormatter {

    private DecimalFormat mFormat;
    public VolFormatter(DecimalFormat mFormat) {
        this.mFormat = mFormat; 
    }
    @Override
    public String getFormattedValue(float value, YAxis yAxis) {
        return mFormat.format(value);
    }
}

2.1转换工具类Utils.java

package com.gold678.retrofit2rxjava.a0000kline.tools;

import android.content.Context;
import android.util.Log;

import com.gold678.retrofit2rxjava.a0000kline.bean.Const;
import com.gold678.retrofit2rxjava.a0000kline.bean.KLineBean;

import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;

import java.util.ArrayList;
import java.util.List;


/**
 * Created by wblobin on 2016/8/29.
 * qq：563084073
 */
public class Utils {

    /**
     * 根据手机的分辨率从 dp 的单位 转成为 px(像素)
     */
    public static int dip2px(Context context, float dpValue) {
        final float scale = context.getResources().getDisplayMetrics().density;
        return (int) (dpValue * scale + 0.5f);
    }

    /**
     * 根据手机的分辨率从 px(像素) 的单位 转成为 dp
     */
    public static int px2dip(Context context, float pxValue) {
        final float scale = context.getResources().getDisplayMetrics().density;
        return (int) (pxValue / scale + 0.5f);
    }

    public float getFloat(String temp) {

        float res = 0;
        try {
            res = Float.valueOf(temp);
        } catch (Exception e) {
        }
        return res;
    }

    public static List<KLineBean> getJson2KLine(String jsonStr ) {
        List<KLineBean> kLineDatas = new ArrayList<>();
        try {
            JSONArray arrayJson = new JSONArray(jsonStr);
            Log.e("Data4File","----getJson2KLine--------length="+arrayJson.length());
            for (int i = 0; i < arrayJson.length(); i++) {
                KLineBean kLineData = new KLineBean();
                JSONObject temp = (JSONObject) arrayJson.get(i);

                kLineData.date = getJsonValue(temp, Const.K_UPDATETIME);
                kLineData.open = Float.valueOf(getJsonValue(temp, Const.K_OPEN));
                kLineData.close = Float.valueOf(getJsonValue(temp, Const.K_CLOSE));
                kLineData.high = Float.valueOf(getJsonValue(temp, Const.K_HIGH));
                kLineData.low = Float.valueOf(getJsonValue(temp, Const.K_LOW));
                kLineData.vol = Float.valueOf(getJsonValue(temp, Const.K_VOLUME));
                kLineDatas.add(kLineData);
            }
        } catch (JSONException e) {
            e.printStackTrace();
        }
        //MyApplication.htlog.e("----------parseKLine2------" + ",Data size="+kLineDatas.size());
        return kLineDatas;
    }
    public static String getJsonValue(JSONObject temp, String key) {
        String res = "";
        try {
            res = temp.getString(key);
        } catch (JSONException e) {
        }
        return res;
    }
}