Question

这是代码，我试图使用Graphview制作图形，但是我无法将XAxis标签格式化为时间，所以进行了一些搜索，然后从该页面复制了代码： http://www.android-graphview.org/dates-as-labels/

fetchData process= new fetchData();

Date date[];

@Override
protected void onCreate(Bundle savedInstanceState)
{
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
    graph=(GraphView) findViewById(R.id.graph);

    process.execute();

    try {
        Thread.sleep(2000);
    } catch (InterruptedException e) {
        // manage error ...
    }

    String[] asseX=fetchData.prendix();

    date=new Date[x.length];

    for(int i=0;i<x.length;i++)
    {
        try {
            date[i] = new SimpleDateFormat("HH:mm").parse(x[i]);
        } catch (ParseException e) {
            e.printStackTrace();
        }
    }



    graph.getGridLabelRenderer().setLabelFormatter(new DateAsXAxisLabelFormatter(getActivity));
    graph.getGridLabelRenderer().setNumHorizontalLabels(x.length);


    }

Answer 1

代替此行：

graph.getGridLabelRenderer().setLabelFormatter(new DateAsXAxisLabelFormatter(getActivity()));

使用

graph.getGridLabelRenderer().setLabelFormatter(new DateAsXAxisLabelFormatter(your_activity_name.this));

尝试一下。如果可行，请在此处进行更新。

getActivity无法解决

1 个答案: