MPAndroidChart/MPChartExample/src/com/xxmassdeveloper/mpchartexample/FilledLineActivity.java at master · luwei2012/MPAndroidChart · GitHub

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150

package com.xxmassdeveloper.mpchartexample;

import android.graphics.Color;
import android.os.Bundle;
import android.view.WindowManager;

import com.github.mikephil.charting.charts.LineChart;
import com.github.mikephil.charting.components.Legend;
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.formatter.IFillFormatter;
import com.github.mikephil.charting.interfaces.dataprovider.LineDataProvider;
import com.github.mikephil.charting.interfaces.datasets.ILineDataSet;
import com.xxmassdeveloper.mpchartexample.notimportant.DemoBase;

import java.util.ArrayList;

public class FilledLineActivity extends DemoBase {

    private LineChart mChart;
    private int mFillColor = Color.argb(150, 51, 181, 229);

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,
                WindowManager.LayoutParams.FLAG_FULLSCREEN);
        setContentView(R.layout.activity_linechart_noseekbar);

        mChart = findViewById(R.id.chart1);
        mChart.setBackgroundColor(Color.WHITE);
        mChart.setGridBackgroundColor(mFillColor);
        mChart.setDrawGridBackground(true);

        mChart.setDrawBorders(true);

        // no description text
        mChart.getDescription().setEnabled(false);

        // if disabled, scaling can be done on x- and y-axis separately
        mChart.setPinchZoom(false);

        Legend l = mChart.getLegend();
        l.setEnabled(false);

        XAxis xAxis = mChart.getXAxis();
        xAxis.setEnabled(false);

        YAxis leftAxis = mChart.getAxisLeft();
        leftAxis.setAxisMaximum(900f);
        leftAxis.setAxisMinimum(-250f);
        leftAxis.setDrawAxisLine(false);
        leftAxis.setDrawZeroLine(false);
        leftAxis.setDrawGridLines(false);

        mChart.getAxisRight().setEnabled(false);

        // add data
        setData(100, 60);

        mChart.invalidate();
    }

    private void setData(int count, float range) {

        ArrayList<Entry> yVals1 = new ArrayList<Entry>();

        for (int i = 0; i < count; i++) {
            float val = (float) (Math.random() * range) + 50;// + (float)
            // ((mult *
            // 0.1) / 10);
            yVals1.add(new Entry(i, val));
        }

        ArrayList<Entry> yVals2 = new ArrayList<Entry>();

        for (int i = 0; i < count; i++) {
            float val = (float) (Math.random() * range) + 450;// + (float)
            // ((mult *
            // 0.1) / 10);
            yVals2.add(new Entry(i, val));
        }

        LineDataSet set1, set2;

        if (mChart.getData() != null &&
                mChart.getData().getDataSetCount() > 0) {
            set1 = (LineDataSet)mChart.getData().getDataSetByIndex(0);
            set2 = (LineDataSet)mChart.getData().getDataSetByIndex(1);
            set1.setValues(yVals1);
            set2.setValues(yVals2);
            mChart.getData().notifyDataChanged();
            mChart.notifyDataSetChanged();
        } else {
            // create a dataset and give it a type
            set1 = new LineDataSet(yVals1, "DataSet 1");

            set1.setAxisDependency(YAxis.AxisDependency.LEFT);
            set1.setColor(Color.rgb(255, 241, 46));
            set1.setDrawCircles(false);
            set1.setLineWidth(2f);
            set1.setCircleRadius(3f);
            set1.setFillAlpha(255);
            set1.setDrawFilled(true);
            set1.setFillColor(Color.WHITE);
            set1.setHighLightColor(Color.rgb(244, 117, 117));
            set1.setDrawCircleHole(false);
            set1.setFillFormatter(new IFillFormatter() {
                @Override
                public float getFillLinePosition(ILineDataSet dataSet, LineDataProvider dataProvider) {
                    return mChart.getAxisLeft().getAxisMinimum();
                }
            });

            // create a dataset and give it a type
            set2 = new LineDataSet(yVals2, "DataSet 2");
            set2.setAxisDependency(YAxis.AxisDependency.LEFT);
            set2.setColor(Color.rgb(255, 241, 46));
            set2.setDrawCircles(false);
            set2.setLineWidth(2f);
            set2.setCircleRadius(3f);
            set2.setFillAlpha(255);
            set2.setDrawFilled(true);
            set2.setFillColor(Color.WHITE);
            set2.setDrawCircleHole(false);
            set2.setHighLightColor(Color.rgb(244, 117, 117));
            set2.setFillFormatter(new IFillFormatter() {
                @Override
                public float getFillLinePosition(ILineDataSet dataSet, LineDataProvider dataProvider) {
                    return mChart.getAxisLeft().getAxisMaximum();
                }
            });

            ArrayList<ILineDataSet> dataSets = new ArrayList<ILineDataSet>();
            dataSets.add(set1); // add the datasets
            dataSets.add(set2);

            // create a data object with the datasets
            LineData data = new LineData(dataSets);
            data.setDrawValues(false);

            // set data
            mChart.setData(data);
        }
    }
}