android - 如何在饼图中隐藏零值 - MPChart android

Question

有没有办法从 MP android 图表(饼图)中抑制零值文本

Answer 1

如果值==0.0f，则使用自定义格式化程序并返回空字符串

public class CustomPercentFormatter implements IValueFormatter {

    private DecimalFormat mFormat;

    public CustomPercentFormatter() {
        mFormat = new DecimalFormat("###,###,##0.0");
    }

    public CustomPercentFormatter(DecimalFormat format) {
        this.mFormat = format;
    }

    @Override
    public String getFormattedValue(float value, Entry entry, int dataSetIndex, ViewPortHandler viewPortHandler) {
        if (value == 0.0f)
            return "";
        return mFormat.format(value) + " %";
    }
}

设置格式化程序:

lineData.setValueFormatter(new CustomPercentFormatter());