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1、Android图表库MPAndroidChart来点不一样的,正负堆叠条形图Android图表库MPAndroidChart(十二)来点不一样的，正负堆叠条形图 实际上这样就导致了我们的代码是比较类似的，先来看下我们的基本实现 一.基本实现 布局还是那个布局，只不过是横向的了 而初始化这些也都是大同小异 /正负堆叠条形图 mHorizontalBarChart = (HorizontalBarChart) findViewById(R.id.mHorizontalBarChart); mHorizontalBarChart.setOnChartValueSelectedListener(thi
2、s); mHorizontalBarChart.setDrawGridBackground(false); mHorizontalBarChart.getDescription.setEnabled(false); / 扩展现在只能分别在x轴和y轴 mHorizontalBarChart.setPinchZoom(false); mHorizontalBarChart.setDrawBarShadow(false); mHorizontalBarChart.setDrawValueAboveBar(true); mHorizontalBarChart.setHighlightFullBarEn
3、abled(false); mHorizontalBarChart.getAxisLeft.setEnabled(false); mHorizontalBarChart.getAxisRight.setAxisMaximum(25f); mHorizontalBarChart.getAxisRight.setAxisMinimum(-25f); mHorizontalBarChart.getAxisRight.setDrawGridLines(false); mHorizontalBarChart.getAxisRight.setDrawZeroLine(true); mHorizontalB
4、arChart.getAxisRight.setLabelCount(7, false); mHorizontalBarChart.getAxisRight.setValueFormatter(new CustomFormatter); mHorizontalBarChart.getAxisRight.setTextSize(9f); XAxis xAxis = mHorizontalBarChart.getXAxis; xAxis.setPosition(XAxis.XAxisPosition.BOTH_SIDED); xAxis.setDrawGridLines(false); xAxis
5、.setDrawAxisLine(false); xAxis.setTextSize(9f); xAxis.setAxisMinimum(0f); xAxis.setAxisMaximum(110f); xAxis.setCenterAxisLabels(true); xAxis.setLabelCount(12); xAxis.setGranularity(10f); /日期格式化 xAxis.setValueFormatter(new IAxisValueFormatter private DecimalFormat format = new DecimalFormat(#); Overr
6、ide public String getFormattedValue(float value, AxisBase axis) return format.format(value) + - + format.format(value + 10); Override public int getDecimalDigits return 0; ); Legend l = mHorizontalBarChart.getLegend; l.setVerticalAlignment(Legend.LegendVerticalAlignment.BOTTOM); l.setHorizontalAlign
7、ment(Legend.LegendHorizontalAlignment.RIGHT); l.setOrientation(Legend.LegendOrientation.HORIZONTAL); l.setDrawInside(false); l.setFormSize(8f); l.setFormToTextSpace(4f); l.setXEntrySpace(6f); / 重要:当使用负值在堆叠酒吧,总是确保-值数组中的第一个 ArrayList yValues = new ArrayList; yValues.add(new BarEntry(5, new float-10, 1
8、0); yValues.add(new BarEntry(15, new float-12, 13); yValues.add(new BarEntry(25, new float-15, 15); yValues.add(new BarEntry(35, new float-17, 17); yValues.add(new BarEntry(45, new float-19, 20); yValues.add(new BarEntry(55, new float-19, 19); yValues.add(new BarEntry(65, new float-16, 16); yValues.
9、add(new BarEntry(75, new float-13, 14); yValues.add(new BarEntry(85, new float-10, 11); yValues.add(new BarEntry(95, new float-5, 6); yValues.add(new BarEntry(105, new float-1, 2); BarDataSet set = new BarDataSet(yValues, 全国人口普查); set.setValueFormatter(new CustomFormatter); set.setValueTextSize(7f);
10、 set.setAxisDependency(YAxis.AxisDependency.RIGHT); set.setColors(new intColor.rgb(99, 67, 72), Color.rgb(14, 181, 136); set.setStackLabels(new String男人, 女人); String xLabels = new String0-10, 10-20, 20-30, 30-40, 40-50, 50-60, 60-70, 70-80, 80-90, 90-100, 100+; BarData data = new BarData(set); data.
11、setBarWidth(8.5f); mHorizontalBarChart.setData(data); mHorizontalBarChart.invalidate; 这里我并没有写setData的方法，直接就模拟了一些数据，可以看出，这个图标是异常的简单，当我们运行之后就可以知道，这个实现的效果和上图的效果是一致的 二.显示顶点值 现在我把源码贴上 activity_statkedbar_negative.xml 实际上比较类似，可以看下代码 StackedBarActivityNegative public class StackedBarActivityNegative extend
12、s OnChartValueSelectedListener,View.OnClickListener private HorizontalBarChart mHorizontalBarChart; /显示顶点值 private Button btn_show_values; /x轴动画 private Button btn_anim_x; /y轴动画 private Button btn_anim_y; /xy轴动画 private Button btn_anim_xy; /保存到sd卡 private Button btn_save_pic; /切换自动最大最小值 private Butt
13、on btn_auto_mix_max; /高亮显示 private Button btn_actionToggleHighlight; /显示边框 private Button btn_show_border; Override protected void onCreate(Bundle savedInstanceState) super.onCreate(savedInstanceState); setContentView(R.layout.activity_statkedbar_negative); initView; BaseActivity implements /初始化View
14、 private void initView /基本控件 btn_show_values = (Button) findViewById(R.id.btn_show_values); btn_show_values.setOnClickListener(this); btn_anim_x = (Button) findViewById(R.id.btn_anim_x); btn_anim_x.setOnClickListener(this); btn_anim_y = (Button) findViewById(R.id.btn_anim_y); btn_anim_y.setOnClickLi
15、stener(this); btn_anim_xy = (Button) findViewById(R.id.btn_anim_xy); btn_anim_xy.setOnClickListener(this); btn_save_pic = (Button) findViewById(R.id.btn_save_pic); btn_save_pic.setOnClickListener(this); btn_auto_mix_max = (Button) findViewById(R.id.btn_auto_mix_max); btn_auto_mix_max.setOnClickListe
16、ner(this); btn_actionToggleHighlight = (Button) findViewById(R.id.btn_actionToggleHighlight); btn_actionToggleHighlight.setOnClickListener(this); btn_show_border = (Button) findViewById(R.id.btn_show_border); btn_show_border.setOnClickListener(this); /正负堆叠条形图 mHorizontalBarChart = (HorizontalBarChar
17、t) findViewById(R.id.mHorizontalBarChart); mHorizontalBarChart.setOnChartValueSelectedListener(this); mHorizontalBarChart.setDrawGridBackground(false); mHorizontalBarChart.getDescription.setEnabled(false); / 扩展现在只能分别在x轴和y轴 mHorizontalBarChart.setPinchZoom(false); mHorizontalBarChart.setDrawBarShadow
18、(false); mHorizontalBarChart.setDrawValueAboveBar(true); mHorizontalBarChart.setHighlightFullBarEnabled(false); mHorizontalBarChart.getAxisLeft.setEnabled(false); mHorizontalBarChart.getAxisRight.setAxisMaximum(25f); mHorizontalBarChart.getAxisRight.setAxisMinimum(-25f); mHorizontalBarChart.getAxisR
19、ight.setDrawGridLines(false); mHorizontalBarChart.getAxisRight.setDrawZeroLine(true); mHorizontalBarChart.getAxisRight.setLabelCount(7, false); mHorizontalBarChart.getAxisRight.setValueFormatter(new CustomFormatter); mHorizontalBarChart.getAxisRight.setTextSize(9f); XAxis xAxis = mHorizontalBarChart
20、.getXAxis; xAxis.setPosition(XAxis.XAxisPosition.BOTH_SIDED); xAxis.setDrawGridLines(false); xAxis.setDrawAxisLine(false); xAxis.setTextSize(9f); xAxis.setAxisMinimum(0f); xAxis.setAxisMaximum(110f); xAxis.setCenterAxisLabels(true); xAxis.setLabelCount(12); xAxis.setGranularity(10f); /日期格式化 xAxis.se
21、tValueFormatter(new IAxisValueFormatter private DecimalFormat format = new DecimalFormat(#); Override public String getFormattedValue(float value, AxisBase axis) return format.format(value) + - + format.format(value + 10); Override public int getDecimalDigits return 0; ); Legend l = mHorizontalBarCh
22、art.getLegend; l.setVerticalAlignment(Legend.LegendVerticalAlignment.BOTTOM); l.setHorizontalAlignment(Legend.LegendHorizontalAlignment.RIGHT); l.setOrientation(Legend.LegendOrientation.HORIZONTAL); l.setDrawInside(false); l.setFormSize(8f); l.setFormToTextSpace(4f); l.setXEntrySpace(6f); / 重要:当使用负值
23、在堆叠酒吧,总是确保-值数组中的第一个 ArrayList yValues = new ArrayList; yValues.add(new BarEntry(5, new float-10, 10); yValues.add(new BarEntry(15, new float-12, 13); yValues.add(new BarEntry(25, new float-15, 15); yValues.add(new BarEntry(35, new float-17, 17); yValues.add(new BarEntry(45, new float-19, 20); yValue
24、s.add(new BarEntry(55, new float-19, 19); yValues.add(new BarEntry(65, new float-16, 16); yValues.add(new BarEntry(75, new float-13, 14); yValues.add(new BarEntry(85, new float-10, 11); yValues.add(new BarEntry(95, new float-5, 6); yValues.add(new BarEntry(105, new float-1, 2); BarDataSet set = new
25、BarDataSet(yValues, 全国人口普查); set.setValueFormatter(new CustomFormatter); set.setValueTSize(7f); set.setAxisDependency(YAxis.AxisDependency.RIGHT); set.setColors(new intColor.rgb(99, 67, 72), Color.rgb(14, 181, 136); set.setStackLabels(new String男人, 女人); String xLabels = new String0-10, 10-20, 20-30,
26、 30-40, 40-50, 50-60, 60-70, 70-80, 80-90, 90- 100, 100+; BarData data = new BarData(set); data.setBarWidth(8.5f); mHorizontalBarChart.setData(data); mHorizontalBarChart.invalidate; Override public void onValueSelected(Entry e, Highlight h) Override public void onNothingSelected Override public void
27、 onClick(View v) switch (v.getId) /显示顶点值 case R.id.btn_show_values: for (IDataSet set : mHorizontalBarChart.getData.getDataSets) set.setDrawValues(!set.isDrawValuesEnabled); mHorizontalBarChart.invalidate; break; /x轴动画 case R.id.btn_anim_x: mHorizontalBarChart.animateX(3000); break; /y轴动画 case R.id.
28、btn_anim_y: mHorizontalBarChart.animateY(3000); break; /xy轴动画 case R.id.btn_anim_xy: mHorizontalBarChart.animateXY(3000, 3000); break; /保存到sd卡 case R.id.btn_save_pic: if (mHorizontalBarChart.saveToGallery(title + System.currentTimeMillis, 50) Toast.makeText(getApplicationContext, 保存成功, Toast.LENGTH_
29、SHORT).show; else Toast.makeText(getApplicationContext, 保存失败, Toast.LENGTH_SHORT).show; break; /切换自动最大最小值 case R.id.btn_auto_mix_max: mHorizontalBarChart.setAutoScaleMinMaxEnabled(!mHorizontalBarChart.isAutoScaleMinMaxEnabled); mHorizontalBarChart.notifyDataSetChanged; break; /高亮显示 case R.id.btn_act
30、ionToggleHighlight: if (mHorizontalBarChart.getData != null) mHorizontalBarChart.getData.setHighlightEnabled( !mHorizontalBarChart.getData.isHighlightEnabled); mHorizontalBarChart.invalidate; break; /显示边框 case R.id.btn_show_border: for (IBarDataSet set : mHorizontalBarChart.getData.getDataSets) (BarDataSet) set).setBarBorderWidth(set.getBarBorderWidth = 1.f ? 0.f : 1.f); mHorizontalBarChart.invalidate; break; 好了，这个图表就是这么简单，到这里就结束了
