/** draws all MarkerViews on the highlighted positions */ protected void drawMarkers(Canvas canvas) { // if there is no marker view or drawing marker is disabled if (mMarkerView == null || !mDrawMarkerViews || !valuesToHighlight()) return; for (int i = 0; i < mIndicesToHighlight.length; i++) { Highlight highlight = mIndicesToHighlight[i]; int xIndex = highlight.getXIndex(); int dataSetIndex = highlight.getDataSetIndex(); float deltaX = mXAxis.mAxisRange; if (xIndex <= deltaX && xIndex <= deltaX * mAnimator.getPhaseX()) { Entry e = mData.getEntryForHighlight(mIndicesToHighlight[i]); // make sure entry not null if (e == null || e.getXIndex() != mIndicesToHighlight[i].getXIndex()) continue; float[] pos = getMarkerPosition(e, highlight); // check bounds if (!mViewPortHandler.isInBounds(pos[0], pos[1])) continue; // callbacks to update the content mMarkerView.refreshContent(e, highlight); // mMarkerView.measure(MeasureSpec.makeMeasureSpec(0, // MeasureSpec.UNSPECIFIED), // MeasureSpec.makeMeasureSpec(0, MeasureSpec.UNSPECIFIED)); // mMarkerView.layout(0, 0, mMarkerView.getMeasuredWidth(), // mMarkerView.getMeasuredHeight()); // mMarkerView.draw(mDrawCanvas, pos[0], pos[1]); mMarkerView.measure( MeasureSpec.makeMeasureSpec(0, MeasureSpec.UNSPECIFIED), MeasureSpec.makeMeasureSpec(0, MeasureSpec.UNSPECIFIED)); mMarkerView.layout(0, 0, mMarkerView.getMeasuredWidth(), mMarkerView.getMeasuredHeight()); if (pos[1] - mMarkerView.getHeight() <= 0) { float y = mMarkerView.getHeight() - pos[1]; mMarkerView.draw(canvas, pos[0], pos[1] + y); } else { mMarkerView.draw(canvas, pos[0], pos[1]); } } } }
// callbacks everytime the MarkerView is redrawn, can be used to update the // content (user-interface) @Override public void refreshContent(Entry e, Highlight highlight) { if (e instanceof CandleEntry) { CandleEntry ce = (CandleEntry) e; tvContent.setText("" + Utils.formatNumber(ce.getHigh(), 0, true)); } else { tvContent.setText("" + Utils.formatNumber(e.getY(), 0, true)); } super.refreshContent(e, highlight); }