继续上一天的 MPAndroidChat 填坑记录。
MPAndroidChat 自定义 Marker
首先,是自定义用来 Highlight 的 Marker。代码如下所示:
@SuppressLint("ViewConstructor")public class DescriptionChartMarkerView extends MarkerView { private TextView content; private int startIndex; public DescriptionChartMarkerView(Context context, int layoutResource) { super(context, layoutResource); content = (TextView) findViewById(R.id.view); } @SuppressLint("DefaultLocale") @Override public void refreshContent(Entry e, Highlight highlight) { super.refreshContent(e, highlight); content.setText(String.format("%d", startIndex + 1)); startIndex++; } public void setStartIndex(int startIndex) { this.startIndex = startIndex; } }
Android Vector 圆圈
在实现的过程中,需要画一个圆圈,也就有了:
<?xml version="1.0" encoding="utf-8"?><shape xmlns:android="http://schemas.android.com/apk/res/android" android:shape="oval"> <solid android:color="@color/green"/> <size android:width="@dimen/text_size_14" android:height="@dimen/text_size_14"/></shape>
MPAndroidChat 生成位置
一般来说,我们可以通过下面的代码来生成 Position 的位置,但是好似是不工作的:
chart.getTransformer(chart.getLineData().mDataSets.get(0).getAxisDependency()).getPixelForValues(highlights[index].getX(), highlights[index].getY());
添加子布局
在上一步获取位置之后,接下来就是将对应的点绘制在坐标上:
View marker = LayoutInflater.from(getContext()).inflate(R.layout.marker, view, false); RelativeLayout.LayoutParams params = (RelativeLayout.LayoutParams) marker.getLayoutParams(); TextView textView = (TextView) marker.findViewById(R.id.text_view); textView.setText(String.format("%d", i));params.leftMargin = 20params.topMargin = 20marker.setLayoutParams(params); view.addView(marker);