MPAndroidChart线型图：使用日期，而不是​​字符串X轴 [英] MPAndroidChart LineChart: Using dates instead of Strings for X-axis

问题描述

MPAndroidChart <一个href=\"https://github.com/PhilJay/MPAndroidChart/blob/master/MPChartLib/src/com/github/mikephil/charting/data/LineData.java\"相对=nofollow>线型图通过默认接受字符串X轴。有没有一种方法来设置日期为X轴数据类型？

MPAndroidChart LineChart by default accepts Strings for X-axis. Is there a way to set Date as a datatype for the X-axis?

与刚刚转换日期为字符串的问题是，图可以根据数据点来scewed。例如，如果我有并于1月一个数据录入在6月10日的条目，默认图形仅仅是分成11和情节相应。

The problem with just converting Date into strings is that graph can be scewed depending on the data points. For example if I have one data entry on January and 10 entries in June, by default the graph is just split into 11 and plot accordingly.

我希望有一个你体重超过时间图，其中X轴重新presents时间。在随机时间用户的权重，所以一些日期将有进入和一些日期则不会。

I want a "You weight over time" graph, where X-Axis represents time. User weights in at random times, so some dates will have entry and some dates will not.

推荐答案

可以使您以饱满日期新的数组和填充previous值空位置。
例如：
你在做一个数组可能[31]在5月的每一天，initializate它用零，然后做这样的事情：

You can make new array with full dates and fill empty positions with previous values. For example: you making an array may[31] for each day of may, initializate it with zeroes, and then do something like this:

may[1] = values[1];  
for (int i = 2; i <= may.size(); ++i) {
    if (may[i] == 0)
        may[i] = may[i-1];
    }

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