Android MPAndroidCharts

Question

我正在尝试创建我的CustomMarkerView类。但是当我覆盖 refreshContent 时，它会显示方法不会覆盖其超类，并且“highlight”参数永远不会被使用。

  

CustomMarkerView.java示例代码

public class CustomMarkerView extends MarkerView {

    private TextView tvContent;
    public CustomMarkerView (Context context, int layoutResource) {
        super(context, layoutResource);
        // this markerview only displays a textview
        tvContent = (TextView) findViewById(R.id.tvContent);
    }

    // callbacks everytime the MarkerView is redrawn, can be used to update the
    // content (user-interface)
    @Override
    public void refreshContent(Entry entries, Highlight highlight) {
        tvContent.setText("" + entries.getVal());
        // set the entry-value as the display text
    }


    @Override
    public int getXOffset() {
        // this will center the marker-view horizontally
        return -(getWidth() / 2);
    }

    @Override
    public int getYOffset() {
        // this will cause the marker-view to be above the selected value
        return -getHeight();
    }
}

  

我直接处理了

中的代码

https://github.com/PhilJay/MPAndroidChart/wiki/MarkerView

我缺少什么？

Answer 1

嘿，刚刚检查了你的代码。如果您将MPAndroidChart版本更新为

compile 'com.github.PhilJay:MPAndroidChart:v2.2.5'

并使用下面的代码（在您的代码中进行了更改），似乎在我身边正常工作......

public class CustomMarkerView extends MarkerView {

    private TextView tvContent;
    public CustomMarkerView (Context context, int layoutResource) {
        super(context, layoutResource);
        // this markerview only displays a textview
        tvContent = (TextView) findViewById(R.id.tvContent);
    }

    // callbacks everytime the MarkerView is redrawn, can be used to update the
    // content (user-interface)
    @Override
    public void refreshContent(Entry entries, Highlight highlight) {
        tvContent.setText(" " + entries.getVal());
        // set the entry-value as the display text
    }

    @Override
    public int getXOffset(float xpos) {
        return -(getWidth()/2);
    }

    @Override
    public int getYOffset(float ypos) {
        return -getHeight();
    }
}