Question

我正在使用MPAndroidChart来显示一些数据。我在不同的菜单选项上显示不同的图表。每个菜单选项都调用一个片段。饼图显示正常但导航切换不起作用。我在LogCat中没有收到任何错误。

以下是代码。

饼图片段XML

    <?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent" 
    android:id="@+id/mainLayout">



 <com.github.mikephil.charting.charts.PieChart
        android:id="@+id/chartPie"
        android:layout_width="match_parent"
        android:layout_height="match_parent" />

</RelativeLayout>

PieChartActivity.java

@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
        Bundle savedInstanceState) {
    try {

        root = (RelativeLayout) inflater.inflate(R.layout.fragment_piechart, container, false);

        getActivity().setContentView(R.layout.fragment_piechart);
        mainLayout = (RelativeLayout) root.findViewById(
                R.id.mainLayout);
        mChart = (PieChart) getActivity().findViewById(R.id.chartPie);
        // add pie chart to main layout
         //mainLayout.addView(mChart); 
        //mainLayout.setBackgroundColor(Color.parseColor("#55656C"));

        // configure pie chart
        mChart.setUsePercentValues(true);
        mChart.setDescription("OEE composition");

        // enable hole and configure
        mChart.setDrawHoleEnabled(true);
        //mChart.setHoleColor(Color.BLACK); 
        mChart.setHoleRadius(7);
        mChart.setTransparentCircleRadius(10);

        // enable rotation of the chart by touch
        mChart.setRotationAngle(0);
        mChart.setRotationEnabled(true);

        // set a chart value selected listener
        mChart.setOnChartValueSelectedListener(new OnChartValueSelectedListener() {

            @Override
            public void onValueSelected(Entry e, int dataSetIndex,
                    Highlight h) {
                // display msg when value selected
                if (e == null)
                    return;

                Toast.makeText(PieChartActivity.this.getActivity(),
                        xData[e.getXIndex()] + " = " + e.getVal() + "%",
                        Toast.LENGTH_SHORT).show();
            }

            @Override
            public void onNothingSelected() {

            }
        });

        // customize legends
        Legend l = mChart.getLegend();
        l.setPosition(LegendPosition.RIGHT_OF_CHART);
        l.setXEntrySpace(7);
        l.setYEntrySpace(5);

    } catch (Exception ex) {
        Log.d("Error", ex.getMessage());
    }

    // Quality
    makeHTTPCall(objGlobal, "574c22cd7625423b05a2cbcc",
            prod_Count_UBI_link_QLTY);

    // Performance
    makeHTTPCall(objGlobal, "574c22ad76254239d6a6bc56",
            prod_Count_UBI_link_PERF);

    // Availability
    makeHTTPCall(objGlobal, "574c1e027625420f0e4401ff",
            prod_Count_UBI_link_AVAIL);

    return root;

}

PieChartActivity扩展片段

 public class PieChartActivity extends Fragment implements
        OnChartValueSelectedListener

有趣的是，导航切换在不同片段上的其他图表上运行良好。

如果需要更多详细信息，请与我们联系。我是Android新手，告诉我在任何基础知识上是否错了......

Answer 1

将饼图布局放置在@ layout / app_bar_index活动中。

导航抽屉与MPAndroidChart无法正常工作

1 个答案: