package com.xxmassdeveloper.mpchartexample; import android.os.Bundle; import android.util.Log; import android.view.Menu; import android.view.MenuItem; import android.view.WindowManager; import android.widget.SeekBar; import android.widget.SeekBar.OnSeekBarChangeListener; import android.widget.TextView; import android.widget.Toast; import com.github.mikephil.charting.charts.LineChart; import com.github.mikephil.charting.components.Legend; import com.github.mikephil.charting.components.Legend.LegendForm; import com.github.mikephil.charting.components.XAxis; import com.github.mikephil.charting.components.YAxis; import com.github.mikephil.charting.data.Entry; import com.github.mikephil.charting.data.LineData; import com.github.mikephil.charting.data.LineDataSet; import com.github.mikephil.charting.data.filter.Approximator; import com.github.mikephil.charting.data.filter.Approximator.ApproximatorType; import com.github.mikephil.charting.interfaces.datasets.ILineDataSet; import com.github.mikephil.charting.listener.OnChartValueSelectedListener; import com.github.mikephil.charting.highlight.Highlight; import com.xxmassdeveloper.mpchartexample.custom.MyMarkerView; import com.xxmassdeveloper.mpchartexample.notimportant.DemoBase; import java.util.ArrayList; import java.util.List; public class InvertedLineChartActivity extends DemoBase implements OnSeekBarChangeListener, OnChartValueSelectedListener { private LineChart mChart; private SeekBar mSeekBarX, mSeekBarY; private TextView tvX, tvY; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN, WindowManager.LayoutParams.FLAG_FULLSCREEN); setContentView(R.layout.activity_linechart); tvX = (TextView) findViewById(R.id.tvXMax); tvY = (TextView) findViewById(R.id.tvYMax); mSeekBarX = (SeekBar) findViewById(R.id.seekBar1); mSeekBarY = (SeekBar) findViewById(R.id.seekBar2); mSeekBarX.setProgress(45); mSeekBarY.setProgress(100); mSeekBarY.setOnSeekBarChangeListener(this); mSeekBarX.setOnSeekBarChangeListener(this); mChart = (LineChart) findViewById(R.id.chart1); mChart.setOnChartValueSelectedListener(this); mChart.setDrawGridBackground(false); // no description text mChart.setDescription(""); // enable touch gestures mChart.setTouchEnabled(true); // enable scaling and dragging mChart.setDragEnabled(true); mChart.setScaleEnabled(true); // if disabled, scaling can be done on x- and y-axis separately mChart.setPinchZoom(true); // set an alternative background color // mChart.setBackgroundColor(Color.GRAY); // create a custom MarkerView (extend MarkerView) and specify the layout // to use for it MyMarkerView mv = new MyMarkerView(this, R.layout.custom_marker_view); // set the marker to the chart mChart.setMarkerView(mv); XAxis xl = mChart.getXAxis(); xl.setAvoidFirstLastClipping(true); YAxis leftAxis = mChart.getAxisLeft(); leftAxis.setInverted(true); leftAxis.setAxisMinValue(0f); // this replaces setStartAtZero(true) YAxis rightAxis = mChart.getAxisRight(); rightAxis.setEnabled(false); // add data setData(25, 50); // // restrain the maximum scale-out factor // mChart.setScaleMinima(3f, 3f); // // // center the view to a specific position inside the chart // mChart.centerViewPort(10, 50); // get the legend (only possible after setting data) Legend l = mChart.getLegend(); // modify the legend ... // l.setPosition(LegendPosition.LEFT_OF_CHART); l.setForm(LegendForm.LINE); // dont forget to refresh the drawing mChart.invalidate(); } @Override public boolean onCreateOptionsMenu(Menu menu) { getMenuInflater().inflate(R.menu.line, menu); return true; } @Override public boolean onOptionsItemSelected(MenuItem item) { switch (item.getItemId()) { case R.id.actionToggleValues: { List<ILineDataSet> sets = mChart.getData() .getDataSets(); for (ILineDataSet iSet : sets) { LineDataSet set = (LineDataSet) iSet; set.setDrawValues(!set.isDrawValuesEnabled()); } mChart.invalidate(); break; } case R.id.actionToggleHighlight: { if(mChart.getData() != null) { mChart.getData().setHighlightEnabled(!mChart.getData().isHighlightEnabled()); mChart.invalidate(); } break; } case R.id.actionToggleFilled: { List<ILineDataSet> sets = mChart.getData() .getDataSets(); for (ILineDataSet iSet : sets) { LineDataSet set = (LineDataSet) iSet; if (set.isDrawFilledEnabled()) set.setDrawFilled(false); else set.setDrawFilled(true); } mChart.invalidate(); break; } case R.id.actionToggleCircles: { List<ILineDataSet> sets = mChart.getData() .getDataSets(); for (ILineDataSet iSet : sets) { LineDataSet set = (LineDataSet) iSet; if (set.isDrawCirclesEnabled()) set.setDrawCircles(false); else set.setDrawCircles(true); } mChart.invalidate(); break; } case R.id.animateX: { mChart.animateX(3000); break; } case R.id.animateY: { mChart.animateY(3000); break; } case R.id.animateXY: { mChart.animateXY(3000, 3000); break; } case R.id.actionTogglePinch: { if (mChart.isPinchZoomEnabled()) mChart.setPinchZoom(false); else mChart.setPinchZoom(true); mChart.invalidate(); break; } case R.id.actionToggleAutoScaleMinMax: { mChart.setAutoScaleMinMaxEnabled(!mChart.isAutoScaleMinMaxEnabled()); mChart.notifyDataSetChanged(); break; } case R.id.actionSave: { if (mChart.saveToPath("title" + System.currentTimeMillis(), "")) { Toast.makeText(getApplicationContext(), "Saving SUCCESSFUL!", Toast.LENGTH_SHORT).show(); } else Toast.makeText(getApplicationContext(), "Saving FAILED!", Toast.LENGTH_SHORT) .show(); // mChart.saveToGallery("title"+System.currentTimeMillis()) break; } } return true; } @Override public void onProgressChanged(SeekBar seekBar, int progress, boolean fromUser) { tvX.setText("" + (mSeekBarX.getProgress() + 1)); tvY.setText("" + (mSeekBarY.getProgress())); setData(mSeekBarX.getProgress() + 1, mSeekBarY.getProgress()); // redraw mChart.invalidate(); } @Override public void onValueSelected(Entry e, int dataSetIndex, Highlight h) { Log.i("VAL SELECTED", "Value: " + e.getVal() + ", xIndex: " + e.getXIndex() + ", DataSet index: " + dataSetIndex); } @Override public void onNothingSelected() { // TODO Auto-generated method stub } @Override public void onStartTrackingTouch(SeekBar seekBar) { // TODO Auto-generated method stub } @Override public void onStopTrackingTouch(SeekBar seekBar) { // TODO Auto-generated method stub } private void setData(int count, float range) { ArrayList<String> xVals = new ArrayList<String>(); for (int i = 0; i < count; i++) { xVals.add((i % 30) + "/" + (i % 12) + "/14"); } ArrayList<Entry> yVals = new ArrayList<Entry>(); for (int i = 0; i < count; i++) { float mult = (range + 1); float val = (float) (Math.random() * mult) + 3;// + (float) // ((mult * // 0.1) / 10); yVals.add(new Entry(val, i)); } // create a dataset and give it a type LineDataSet set1 = new LineDataSet(yVals, "DataSet 1"); set1.setLineWidth(1.5f); set1.setCircleRadius(4f); // create a data object with the datasets LineData data = new LineData(xVals, set1); // set data mChart.setData(data); } }