GraphView的横轴标题和标签没有出现

Question

我正在尝试使用Android GraphView库（http://www.android-graphview.org/），但无论我尝试什么，我似乎都无法获得横轴标题和标签。 Y轴和标题似乎没有任何问题。

基于此前的S.O.回答“GraphView, how to show x-axis label?”，它应该一样容易

    GridLabelRenderer gridLabel = graphView.getGridLabelRenderer();
    gridLabel.setHorizontalAxisTitle("X Axis Title");

我已经尝试过了，但它也不适用于我。

我的代码如下：

fragment_results.xml

<?xml version="1.0" encoding="utf-8"?>
<android.support.constraint.ConstraintLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:id="@+id/container"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context=".ResultsFragment">

    <com.jjoe64.graphview.GraphView
        android:id="@+id/results_graph"
        android:layout_height="400dp"
        android:layout_width="match_parent"
        app:layout_constraintTop_toTopOf="parent"
        app:layout_constraintLeft_toLeftOf="parent"
        android:visibility="visible"/>

</android.support.constraint.ConstraintLayout>

ResultsFragment.java中的onCreate（）

View v = inflater.inflate(R.layout.fragment_results, container, false);
mGraph = v.findViewById(R.id.results_graph);
mGraph.getViewport().setScalable(true); // enables horizontal zooming and scrolling
mGraph.getViewport().setScalableY(true); // enables vertical zooming and scrolling
mGraph.getViewport().setYAxisBoundsManual(true); // Prevents auto-rescaling the Y-axis
mGraph.getViewport().setXAxisBoundsManual(true); // Prevents auto-rescaling the X-axis
mGraph.setTitleTextSize(96);
mGraph.setTitle("Title");
mGraph.getGridLabelRenderer().setHumanRounding(true);
mGraph.getGridLabelRenderer().setVerticalAxisTitleTextSize(64);
mGraph.getGridLabelRenderer().setVerticalAxisTitle("Y Axis Title");
mGraph.getGridLabelRenderer().setHorizontalAxisTitleTextSize(64);
mGraph.getGridLabelRenderer().setHorizontalAxisTitle("X Axis Title");
mGraph.getGridLabelRenderer().setHorizontalLabelsVisible(true);
LineGraphSeries<DataPoint> series = new LineGraphSeries<>(new DataPoint[]{
        new DataPoint(34.3, -21.0),
        new DataPoint(37.0, -21.0),
        new DataPoint(37.3, -18.0),
        new DataPoint(41.0, -18.0),
        new DataPoint(41.3, -15.0),
        new DataPoint(46.0, -15.0),
        new DataPoint(46.3, -12.0),
        new DataPoint(54.0, -12.0),
        new DataPoint(54.3, -9.0),
        new DataPoint(65.0, -9.0),
        new DataPoint(65.3, -6.0),
        new DataPoint(84.0, -6.0),
        new DataPoint(84.3, -3.0),
        new DataPoint(124.0, -3.0),
        new DataPoint(124.3, 0.0)
});
series.setTitle("TEST");
series.setColor(Color.rgb(115,230,115));
mGraph.addSeries(series);

结果是这样的：

Answer 1

我制作了一个新的Android Studio项目，复制了上面的代码，一切正常。沮丧，我采取了蛮力的方法，只是比较每个文件中的代码。我发现的唯一区别是我在AndroidManifest.xml中关闭了硬件加速

 <application
        ...
        android:hardwareAccelerated="false">
        ...
 </application>

从清单中删除该行后，最终出现了X轴标题和标签！