1 2 package com.xxmassdeveloper.mpchartexample; 3 4 import android.Manifest; 5 import android.content.Intent; 6 import android.content.pm.PackageManager; 7 import android.net.Uri; 8 import android.os.Bundle; 9 import androidx.core.content.ContextCompat; 10 import android.util.Log; 11 import android.view.Menu; 12 import android.view.MenuItem; 13 import android.view.WindowManager; 14 import android.widget.SeekBar; 15 import android.widget.SeekBar.OnSeekBarChangeListener; 16 import android.widget.TextView; 17 18 import com.github.mikephil.charting.charts.ScatterChart; 19 import com.github.mikephil.charting.components.Legend; 20 import com.github.mikephil.charting.components.XAxis; 21 import com.github.mikephil.charting.components.YAxis; 22 import com.github.mikephil.charting.data.Entry; 23 import com.github.mikephil.charting.data.ScatterData; 24 import com.github.mikephil.charting.data.ScatterDataSet; 25 import com.github.mikephil.charting.highlight.Highlight; 26 import com.github.mikephil.charting.interfaces.datasets.IScatterDataSet; 27 import com.github.mikephil.charting.listener.OnChartValueSelectedListener; 28 import com.github.mikephil.charting.utils.ColorTemplate; 29 import com.xxmassdeveloper.mpchartexample.custom.CustomScatterShapeRenderer; 30 import com.xxmassdeveloper.mpchartexample.notimportant.DemoBase; 31 32 import java.util.ArrayList; 33 import java.util.List; 34 35 public class ScatterChartActivity extends DemoBase implements OnSeekBarChangeListener, 36 OnChartValueSelectedListener { 37 38 private ScatterChart chart; 39 private SeekBar seekBarX, seekBarY; 40 private TextView tvX, tvY; 41 42 @Override onCreate(Bundle savedInstanceState)43 protected void onCreate(Bundle savedInstanceState) { 44 super.onCreate(savedInstanceState); 45 getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN, 46 WindowManager.LayoutParams.FLAG_FULLSCREEN); 47 setContentView(R.layout.activity_scatterchart); 48 49 setTitle("ScatterChartActivity"); 50 51 tvX = findViewById(R.id.tvXMax); 52 tvY = findViewById(R.id.tvYMax); 53 54 seekBarX = findViewById(R.id.seekBar1); 55 seekBarX.setOnSeekBarChangeListener(this); 56 57 seekBarY = findViewById(R.id.seekBar2); 58 seekBarY.setOnSeekBarChangeListener(this); 59 60 chart = findViewById(R.id.chart1); 61 chart.getDescription().setEnabled(false); 62 chart.setOnChartValueSelectedListener(this); 63 64 chart.setDrawGridBackground(false); 65 chart.setTouchEnabled(true); 66 chart.setMaxHighlightDistance(50f); 67 68 // enable scaling and dragging 69 chart.setDragEnabled(true); 70 chart.setScaleEnabled(true); 71 72 chart.setMaxVisibleValueCount(200); 73 chart.setPinchZoom(true); 74 75 seekBarX.setProgress(45); 76 seekBarY.setProgress(100); 77 78 Legend l = chart.getLegend(); 79 l.setVerticalAlignment(Legend.LegendVerticalAlignment.TOP); 80 l.setHorizontalAlignment(Legend.LegendHorizontalAlignment.RIGHT); 81 l.setOrientation(Legend.LegendOrientation.VERTICAL); 82 l.setDrawInside(false); 83 l.setTypeface(tfLight); 84 l.setXOffset(5f); 85 86 YAxis yl = chart.getAxisLeft(); 87 yl.setTypeface(tfLight); 88 yl.setAxisMinimum(0f); // this replaces setStartAtZero(true) 89 90 chart.getAxisRight().setEnabled(false); 91 92 XAxis xl = chart.getXAxis(); 93 xl.setTypeface(tfLight); 94 xl.setDrawGridLines(false); 95 } 96 97 @Override onProgressChanged(SeekBar seekBar, int progress, boolean fromUser)98 public void onProgressChanged(SeekBar seekBar, int progress, boolean fromUser) { 99 100 tvX.setText(String.valueOf(seekBarX.getProgress())); 101 tvY.setText(String.valueOf(seekBarY.getProgress())); 102 103 ArrayList<Entry> values1 = new ArrayList<>(); 104 ArrayList<Entry> values2 = new ArrayList<>(); 105 ArrayList<Entry> values3 = new ArrayList<>(); 106 107 for (int i = 0; i < seekBarX.getProgress(); i++) { 108 float val = (float) (Math.random() * seekBarY.getProgress()) + 3; 109 values1.add(new Entry(i, val)); 110 } 111 112 for (int i = 0; i < seekBarX.getProgress(); i++) { 113 float val = (float) (Math.random() * seekBarY.getProgress()) + 3; 114 values2.add(new Entry(i+0.33f, val)); 115 } 116 117 for (int i = 0; i < seekBarX.getProgress(); i++) { 118 float val = (float) (Math.random() * seekBarY.getProgress()) + 3; 119 values3.add(new Entry(i+0.66f, val)); 120 } 121 122 // create a dataset and give it a type 123 ScatterDataSet set1 = new ScatterDataSet(values1, "DS 1"); 124 set1.setScatterShape(ScatterChart.ScatterShape.SQUARE); 125 set1.setColor(ColorTemplate.COLORFUL_COLORS[0]); 126 ScatterDataSet set2 = new ScatterDataSet(values2, "DS 2"); 127 set2.setScatterShape(ScatterChart.ScatterShape.CIRCLE); 128 set2.setScatterShapeHoleColor(ColorTemplate.COLORFUL_COLORS[3]); 129 set2.setScatterShapeHoleRadius(3f); 130 set2.setColor(ColorTemplate.COLORFUL_COLORS[1]); 131 ScatterDataSet set3 = new ScatterDataSet(values3, "DS 3"); 132 set3.setShapeRenderer(new CustomScatterShapeRenderer()); 133 set3.setColor(ColorTemplate.COLORFUL_COLORS[2]); 134 135 set1.setScatterShapeSize(8f); 136 set2.setScatterShapeSize(8f); 137 set3.setScatterShapeSize(8f); 138 139 ArrayList<IScatterDataSet> dataSets = new ArrayList<>(); 140 dataSets.add(set1); // add the data sets 141 dataSets.add(set2); 142 dataSets.add(set3); 143 144 // create a data object with the data sets 145 ScatterData data = new ScatterData(dataSets); 146 data.setValueTypeface(tfLight); 147 148 chart.setData(data); 149 chart.invalidate(); 150 } 151 152 @Override onCreateOptionsMenu(Menu menu)153 public boolean onCreateOptionsMenu(Menu menu) { 154 getMenuInflater().inflate(R.menu.scatter, menu); 155 return true; 156 } 157 158 @Override onOptionsItemSelected(MenuItem item)159 public boolean onOptionsItemSelected(MenuItem item) { 160 161 switch (item.getItemId()) { 162 case R.id.viewGithub: { 163 Intent i = new Intent(Intent.ACTION_VIEW); 164 i.setData(Uri.parse("https://github.com/PhilJay/MPAndroidChart/blob/master/MPChartExample/src/com/xxmassdeveloper/mpchartexample/ScatterChartActivity.java")); 165 startActivity(i); 166 break; 167 } 168 case R.id.actionToggleValues: { 169 List<IScatterDataSet> sets = chart.getData() 170 .getDataSets(); 171 172 for (IScatterDataSet iSet : sets) { 173 174 ScatterDataSet set = (ScatterDataSet) iSet; 175 set.setDrawValues(!set.isDrawValuesEnabled()); 176 } 177 178 chart.invalidate(); 179 break; 180 } 181 case R.id.actionToggleHighlight: { 182 if(chart.getData() != null) { 183 chart.getData().setHighlightEnabled(!chart.getData().isHighlightEnabled()); 184 chart.invalidate(); 185 } 186 break; 187 } 188 case R.id.actionTogglePinch: { 189 if (chart.isPinchZoomEnabled()) 190 chart.setPinchZoom(false); 191 else 192 chart.setPinchZoom(true); 193 194 chart.invalidate(); 195 break; 196 } 197 case R.id.actionToggleAutoScaleMinMax: { 198 chart.setAutoScaleMinMaxEnabled(!chart.isAutoScaleMinMaxEnabled()); 199 chart.notifyDataSetChanged(); 200 break; 201 } 202 case R.id.animateX: { 203 chart.animateX(3000); 204 break; 205 } 206 case R.id.animateY: { 207 chart.animateY(3000); 208 break; 209 } 210 case R.id.animateXY: { 211 212 chart.animateXY(3000, 3000); 213 break; 214 } 215 case R.id.actionSave: { 216 if (ContextCompat.checkSelfPermission(this, Manifest.permission.WRITE_EXTERNAL_STORAGE) == PackageManager.PERMISSION_GRANTED) { 217 saveToGallery(); 218 } else { 219 requestStoragePermission(chart); 220 } 221 break; 222 } 223 } 224 return true; 225 } 226 227 @Override saveToGallery()228 protected void saveToGallery() { 229 saveToGallery(chart, "ScatterChartActivity"); 230 } 231 232 @Override onValueSelected(Entry e, Highlight h)233 public void onValueSelected(Entry e, Highlight h) { 234 Log.i("VAL SELECTED", 235 "Value: " + e.getY() + ", xIndex: " + e.getX() 236 + ", DataSet index: " + h.getDataSetIndex()); 237 } 238 239 @Override onNothingSelected()240 public void onNothingSelected() {} 241 242 @Override onStartTrackingTouch(SeekBar seekBar)243 public void onStartTrackingTouch(SeekBar seekBar) {} 244 245 @Override onStopTrackingTouch(SeekBar seekBar)246 public void onStopTrackingTouch(SeekBar seekBar) {} 247 } 248