JSON-Visualizer/BarGraphActivity.java at master · sseshadri26/JSON-Visualizer · 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
package com.example.sudarshanseshadri.bloombergjson;

import android.content.Intent;
import android.graphics.Color;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.util.Log;
import android.widget.TextView;

import com.github.mikephil.charting.charts.BarChart;
import com.github.mikephil.charting.components.XAxis;
import com.github.mikephil.charting.components.YAxis;
import com.github.mikephil.charting.data.BarData;
import com.github.mikephil.charting.data.BarDataSet;
import com.github.mikephil.charting.data.BarEntry;
import com.github.mikephil.charting.data.PieData;
import com.github.mikephil.charting.data.PieDataSet;
import com.github.mikephil.charting.data.PieEntry;
import com.github.mikephil.charting.formatter.IndexAxisValueFormatter;
import com.github.mikephil.charting.formatter.PercentFormatter;
import com.github.mikephil.charting.utils.ColorTemplate;
import com.jjoe64.graphview.series.BarGraphSeries;

import java.util.ArrayList;

public class BarGraphActivity extends AppCompatActivity {

    private static final String TAG = "BarGraphActivity";
    String xAxis;
    String yAxis;
    String filter;

    BarChart graph;


    ArrayList <String> xLabelsArrayList;

    double[] yAxisVals;

    TextView xAxisView, titleView;

    VerticalLabelView yAxisView;


    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_bar_graph);

        Intent i = getIntent();
        xAxis = i.getStringExtra("x-axis");
        yAxis = i.getStringExtra("y-axis");

        xLabelsArrayList = i.getStringArrayListExtra("x-axis labels");
        yAxisVals = i.getDoubleArrayExtra("y-axis values");


        xAxisView = findViewById(R.id.id_textView_x_axis);
        yAxisView = findViewById(R.id.id_textView_y_axis);
        titleView = findViewById(R.id.id_textView_title);
        xAxis = i.getStringExtra("x-axis");
        yAxis = i.getStringExtra("y-axis");
        xAxisView.setText(xAxis);

        yAxisView.setText(yAxis);
        yAxisView.setTextColor(xAxisView.getCurrentTextColor());

        filter = i.getStringExtra("filter");
        if (filter!=null) {
            titleView.setText(yAxis + " vs " + xAxis + "\n Filtered by " + filter);
        }
        else
        {
            titleView.setText(yAxis + " vs " + xAxis);
        }

        graph = findViewById(R.id.id_barChart);
        setUpBarGraph();
        graph.setFitBars(true);

    }

    public void setUpBarGraph()
    {

        String[] xLabels = new String[xLabelsArrayList.size()];
        xLabels = xLabelsArrayList.toArray(xLabels);


        Log.v(TAG, xLabelsArrayList.toString());

        graph.setBackgroundColor(Color.WHITE);
        graph.getDescription().setEnabled(false);

        ArrayList<BarEntry> yVals = new ArrayList<>();
        for (int i = 0; i<yAxisVals.length;i++)
        {
            yVals.add(new BarEntry(i, (float) yAxisVals[i]));
        }


        BarDataSet set=new BarDataSet(yVals, "Randoms");

        set.setColors(ColorTemplate.MATERIAL_COLORS);
        set.setDrawValues(true);

        BarData data = new BarData(set);

        graph.getLegend().setEnabled(false);

        YAxis rightAxis = graph.getAxisRight();
        rightAxis.setDrawLabels(false);

        graph.getXAxis().setValueFormatter(new IndexAxisValueFormatter(xLabels));

        XAxis xAxis = graph.getXAxis();
        xAxis.setGranularity(1f);
        xAxis.setGranularityEnabled(true);

        xAxis.setPosition(XAxis.XAxisPosition.BOTTOM);


        graph.setData(data);

        graph.invalidate();

        graph.animateY(1000);

    }
}