Hi I麓m working with BubbleChart on MPAndroidChart .My X values are pretty big and so my bubbles size are very small,in order to see the bubbles is necessary to zoom a lot on the chart.I set big size for the bubbles but they keep small. Thats my code.
BubbleChart bubbleChart=(BubbleChart) findViewById(R.id.bubbleChart);
ArrayList<BubbleEntry> entries = new ArrayList<>();
entries.add(new BubbleEntry(323,1f,10f));
entries.add(new BubbleEntry(981,5f, 10f));
entries.add(new BubbleEntry(1300,3f ,10f));
XAxis xAxis = bubbleChart.getXAxis();
xAxis.setAxisMinimum(0);
xAxis.setAxisMaximum(1440);
YAxis yAxis = bubbleChart.getAxisLeft();
yAxis.setAxisMinimum(0);
yAxis.setAxisMaximum(8);
YAxis yAxis2=bubbleChart.getAxisRight();
yAxis2.setAxisMinimum(0);
yAxis2.setAxisMaximum(8);
BubbleDataSet bubbleDataSet = new BubbleDataSet(entries, "");
bubbleDataSet.setColor(Color.RED,180);
BubbleData data= new BubbleData(bubbleDataSet);
bubbleChart.setData(data);
Screenshot:

I also need help with this one. I'm in the same situation. I have a high number on my x-axis and my bubbles are nearly impossible to see...
bubbleDataSet .setNormalizeSizeEnabled(false);
this code solves your problem
any solution found for this ? @07asier
You will need to override BubbleChartRenderer.drawDataSet or at least getShapeSize to change this behavior. Or perhaps you can extend BubbleDataSet and provide a method to set mMaxSize. See my comments on issue #3304. They should explain what is going on.
Most helpful comment
bubbleDataSet .setNormalizeSizeEnabled(false);
this code solves your problem