<!-- 扇形图 -->
    <com.example.yanxu.piechartview.view.PieChartView
        android:id="@+id/pie_chart_view"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content" />

private float[] ratios = {0.1f, 0.2f, 0.3f, 0.4f};
private String[] colors = {"#FFB864", "#6F7CFF", "#884EDB", "#90E3E1"};

    /**
     * 初始化data
     */
    private void initData() {
        mPieChartView.initSrc(ratios, colors);
        mPieChartView.startDraw();
    }