Android Chart Gallery MPAndroidChart(8) - Extension of Pie Chart: Polyline Pie Chart

Android Chart Gallery MPAndroidChart(8) - Extension of Pie Chart: Polyline Pie Chart

Let's go on to see what we want to achieve by expanding the pie chart above and adding a discount explanation

Because of our previous familiarity with MPAndroidChart, we can do it directly

1. Basic implementation

First, let's look at his definition layout

 <com.github.mikephil.charting.charts.PieChart
        android:id="@+id/mPieChart"
        android:layout_width="match_parent"
        android:layout_height="0dp"
        android:layout_weight="1"/>
  • 1
  • 2
  • 3
  • 4
  • 5

Well, here we're still using PieChart, so why not now?

        //Discount pie chart
        mPieChart = (PieChart) findViewById(R.id.mPieChart);
        mPieChart.setUsePercentValues(true);
        mPieChart.getDescription().setEnabled(false);
        mPieChart.setExtraOffsets(5, 10, 5, 5);

        mPieChart.setDragDecelerationFrictionCoef(0.95f);
        //Draw intermediate text
        mPieChart.setCenterText(generateCenterSpannableText());
        mPieChart.setExtraOffsets(20.f, 0.f, 20.f, 0.f);

        mPieChart.setDrawHoleEnabled(true);
        mPieChart.setHoleColor(Color.WHITE);

        mPieChart.setTransparentCircleColor(Color.WHITE);
        mPieChart.setTransparentCircleAlpha(110);

        mPieChart.setHoleRadius(58f);
        mPieChart.setTransparentCircleRadius(61f);

        mPieChart.setDrawCenterText(true);

        mPieChart.setRotationAngle(0);
        // Touch Rotation
        mPieChart.setRotationEnabled(true);
        mPieChart.setHighlightPerTapEnabled(true);


        // Add a Selection Listener
        mPieChart.setOnChartValueSelectedListener(this);

        //Analog data
        ArrayList<PieEntry> entries = new ArrayList<PieEntry>();
        entries.add(new PieEntry(40, "excellent"));
        entries.add(new PieEntry(20, "Full score"));
        entries.add(new PieEntry(30, "pass"));
        entries.add(new PieEntry(10, "Fail"));

        //Set up data
        setData(entries);

        //Default Animation
        mPieChart.animateY(1400, Easing.EasingOption.EaseInOutQuad);

        Legend l = mPieChart.getLegend();
        l.setVerticalAlignment(Legend.LegendVerticalAlignment.TOP);
        l.setHorizontalAlignment(Legend.LegendHorizontalAlignment.RIGHT);
        l.setOrientation(Legend.LegendOrientation.VERTICAL);
        l.setDrawInside(false);
        l.setEnabled(false);
  • 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

We need our setup data

    //Set up data
    private void setData(ArrayList<PieEntry> entries) {
        PieDataSet dataSet = new PieDataSet(entries, "Class 1, Grade 3");
        dataSet.setSliceSpace(3f);
        dataSet.setSelectionShift(5f);
        ArrayList<Integer> colors = new ArrayList<Integer>();
        for (int c : ColorTemplate.VORDIPLOM_COLORS)
            colors.add(c);

        for (int c : ColorTemplate.JOYFUL_COLORS)
            colors.add(c);

        for (int c : ColorTemplate.COLORFUL_COLORS)
            colors.add(c);

        for (int c : ColorTemplate.LIBERTY_COLORS)
            colors.add(c);

        for (int c : ColorTemplate.PASTEL_COLORS)
            colors.add(c);

        colors.add(ColorTemplate.getHoloBlue());

        dataSet.setColors(colors);

        dataSet.setValueLinePart1OffsetPercentage(80.f);
        dataSet.setValueLinePart1Length(0.2f);
        dataSet.setValueLinePart2Length(0.4f);
        dataSet.setYValuePosition(PieDataSet.ValuePosition.OUTSIDE_SLICE);

        PieData data = new PieData(dataSet);
        data.setValueFormatter(new PercentFormatter());
        data.setValueTextSize(11f);
        data.setValueTextColor(Color.BLACK);
        mPieChart.setData(data);

        // Undo all highlights
        mPieChart.highlightValues(null);

        mPieChart.invalidate();
    }
  • 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

Here, you can't lose the middle text

    //Draw Center Text
    private SpannableString generateCenterSpannableText() {
        SpannableString s = new SpannableString("A programmer named Liu\n I seem to hear someone say I'm handsome");
        //s.setSpan(new RelativeSizeSpan(1.5f), 0, 14, 0);
        //s.setSpan(new StyleSpan(Typeface.NORMAL), 14, s.length() - 15, 0);
        //s.setSpan(new ForegroundColorSpan(Color.GRAY), 14, s.length() - 15, 0);
        //s.setSpan(new RelativeSizeSpan(.65f), 14, s.length() - 15, 0);
        //s.setSpan(new StyleSpan(Typeface.ITALIC), s.length() - 14, s.length(), 0);
        //s.setSpan(new ForegroundColorSpan(ColorTemplate.getHoloBlue()), s.length()-17, s.length(), 0);
        return s;
    }
  • 1
  • 2
  • 3
  • 4
  • 5
  • 6
  • 7
  • 8
  • 9
  • 10
  • 11

Now it's okay to run it. It's not difficult. Let's see how it works

2. Display Percentage

3. Display type

4.x-axis animation

5.y-axis animation

6.xy axis animation

7. Display intermediate text

8. Rotate Animation

Paste the code here

activity_pie_line.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical">

    <com.github.mikephil.charting.charts.PieChart
        android:id="@+id/mPieChart"
        android:layout_width="match_parent"
        android:layout_height="0dp"
        android:layout_weight="1"/>

    <!--There are also display descriptions and so on-->
    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:orientation="horizontal">

        <Button
            android:id="@+id/btn_show_percentage"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="Display Percentage"/>

        <Button
            android:id="@+id/btn_show_type"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="Is it paved"/>

        <Button
            android:id="@+id/btn_anim_x"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="X Axis Animation"/>

        <Button
            android:id="@+id/btn_anim_y"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="Y Axis Animation"/>

    </LinearLayout>

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:orientation="horizontal">

        <Button
            android:id="@+id/btn_anim_xy"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="XY Axis Animation"/>

        <Button
            android:id="@+id/btn_show_center_text"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="Show middle text"/>

        <Button
            android:id="@+id/btn_save_pic"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="Save Gallery"/>

        <Button
            android:id="@+id/btn_anim_rotating"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="Rotate Animation"/>

    </LinearLayout>

</LinearLayout>
  • 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

PiePolylineChartActivity

public class PiePolylineChartActivity extends BaseActivity implements OnChartValueSelectedListener, View.OnClickListener {

    private PieChart mPieChart;

    //Display Percentage
    private Button btn_show_percentage;
    //Display type
    private Button btn_show_type;
    //x-axis animation
    private Button btn_anim_x;
    //y-axis animation
    private Button btn_anim_y;
    //xy-axis animation
    private Button btn_anim_xy;
    //Save to sd card
    private Button btn_save_pic;
    //Show middle text
    private Button btn_show_center_text;
    //Rotate Animation
    private Button btn_anim_rotating;

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

        initView();
    }

    //Initialization
    private void initView() {

        btn_show_percentage = (Button) findViewById(R.id.btn_show_percentage);
        btn_show_percentage.setOnClickListener(this);
        btn_show_type = (Button) findViewById(R.id.btn_show_type);
        btn_show_type.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.setOnClickListener(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_show_center_text = (Button) findViewById(R.id.btn_show_center_text);
        btn_show_center_text.setOnClickListener(this);
        btn_anim_rotating = (Button) findViewById(R.id.btn_anim_rotating);
        btn_anim_rotating.setOnClickListener(this);

        //Discount pie chart
        mPieChart = (PieChart) findViewById(R.id.mPieChart);
        mPieChart.setUsePercentValues(true);
        mPieChart.getDescription().setEnabled(false);
        mPieChart.setExtraOffsets(5, 10, 5, 5);

        mPieChart.setDragDecelerationFrictionCoef(0.95f);
        //Draw intermediate text
        mPieChart.setCenterText(generateCenterSpannableText());
        mPieChart.setExtraOffsets(20.f, 0.f, 20.f, 0.f);

        mPieChart.setDrawHoleEnabled(true);
        mPieChart.setHoleColor(Color.WHITE);

        mPieChart.setTransparentCircleColor(Color.WHITE);
        mPieChart.setTransparentCircleAlpha(110);

        mPieChart.setHoleRadius(58f);
        mPieChart.setTransparentCircleRadius(61f);

        mPieChart.setDrawCenterText(true);

        mPieChart.setRotationAngle(0);
        // Touch Rotation
        mPieChart.setRotationEnabled(true);
        mPieChart.setHighlightPerTapEnabled(true);


        // Add a Selection Listener
        mPieChart.setOnChartValueSelectedListener(this);

        //Analog data
        ArrayList<PieEntry> entries = new ArrayList<PieEntry>();
        entries.add(new PieEntry(40, "excellent"));
        entries.add(new PieEntry(20, "Full score"));
        entries.add(new PieEntry(30, "pass"));
        entries.add(new PieEntry(10, "Fail"));

        //Set up data
        setData(entries);

        //Default Animation
        mPieChart.animateY(1400, Easing.EasingOption.EaseInOutQuad);

        Legend l = mPieChart.getLegend();
        l.setVerticalAlignment(Legend.LegendVerticalAlignment.TOP);
        l.setHorizontalAlignment(Legend.LegendHorizontalAlignment.RIGHT);
        l.setOrientation(Legend.LegendOrientation.VERTICAL);
        l.setDrawInside(false);
        l.setEnabled(false);
    }

    //Set up data
    private void setData(ArrayList<PieEntry> entries) {
        PieDataSet dataSet = new PieDataSet(entries, "Class 1, Grade 3");
        dataSet.setSliceSpace(3f);
        dataSet.setSelectionShift(5f);
        ArrayList<Integer> colors = new ArrayList<Integer>();
        for (int c : ColorTemplate.VORDIPLOM_COLORS)
            colors.add(c);

        for (int c : ColorTemplate.JOYFUL_COLORS)
            colors.add(c);

        for (int c : ColorTemplate.COLORFUL_COLORS)
            colors.add(c);

        for (int c : ColorTemplate.LIBERTY_COLORS)
            colors.add(c);

        for (int c : ColorTemplate.PASTEL_COLORS)
            colors.add(c);

        colors.add(ColorTemplate.getHoloBlue());

        dataSet.setColors(colors);

        dataSet.setValueLinePart1OffsetPercentage(80.f);
        dataSet.setValueLinePart1Length(0.2f);
        dataSet.setValueLinePart2Length(0.4f);
        dataSet.setYValuePosition(PieDataSet.ValuePosition.OUTSIDE_SLICE);

        PieData data = new PieData(dataSet);
        data.setValueFormatter(new PercentFormatter());
        data.setValueTextSize(11f);
        data.setValueTextColor(Color.BLACK);
        mPieChart.setData(data);

        // Undo all highlights
        mPieChart.highlightValues(null);

        mPieChart.invalidate();
    }

    //Draw Center Text
    private SpannableString generateCenterSpannableText() {
        SpannableString s = new SpannableString("A programmer named Liu\n I seem to hear someone say I'm handsome");
        //s.setSpan(new RelativeSizeSpan(1.5f), 0, 14, 0);
        //s.setSpan(new StyleSpan(Typeface.NORMAL), 14, s.length() - 15, 0);
        //s.setSpan(new ForegroundColorSpan(Color.GRAY), 14, s.length() - 15, 0);
        //s.setSpan(new RelativeSizeSpan(.65f), 14, s.length() - 15, 0);
        //s.setSpan(new StyleSpan(Typeface.ITALIC), s.length() - 14, s.length(), 0);
        //s.setSpan(new ForegroundColorSpan(ColorTemplate.getHoloBlue()), s.length()-17, s.length(), 0);
        return s;
    }

    @Override
    public void onValueSelected(Entry e, Highlight h) {

    }

    @Override
    public void onNothingSelected() {

    }

    @Override
    public void onClick(View v) {
        switch (v.getId()) {
            //Display Percentage
            case R.id.btn_show_percentage:
                for (IDataSet<?> set : mPieChart.getData().getDataSets())
                    set.setDrawValues(!set.isDrawValuesEnabled());

                mPieChart.invalidate();
                break;
            //Display type
            case R.id.btn_show_type:
                if (mPieChart.isDrawHoleEnabled())
                    mPieChart.setDrawHoleEnabled(false);
                else
                    mPieChart.setDrawHoleEnabled(true);
                mPieChart.invalidate();
                break;
            //x-axis animation
            case R.id.btn_anim_x:
                mPieChart.animateX(1400);
                break;
            //y-axis animation
            case R.id.btn_anim_y:
                mPieChart.animateY(1400);
                break;
            //xy-axis animation
            case R.id.btn_anim_xy:
                mPieChart.animateXY(1400, 1400);
                break;
            //Save to sd card
            case R.id.btn_save_pic:
                mPieChart.saveToPath("title" + System.currentTimeMillis(), "");
                break;
            //Show middle text
            case R.id.btn_show_center_text:
                if (mPieChart.isDrawCenterTextEnabled())
                    mPieChart.setDrawCenterText(false);
                else
                    mPieChart.setDrawCenterText(true);
                mPieChart.invalidate();
                break;
            //Rotate Animation
            case R.id.btn_anim_rotating:
                mPieChart.spin(1000, mPieChart.getRotationAngle(), mPieChart.getRotationAngle() + 360, Easing.EasingOption
                        .EaseInCubic);
                break;
        }
    }
}
  • 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
  • 151
  • 152
  • 153
  • 154
  • 155
  • 156
  • 157
  • 158
  • 159
  • 160
  • 161
  • 162
  • 163
  • 164
  • 165
  • 166
  • 167
  • 168
  • 169
  • 170
  • 171
  • 172
  • 173
  • 174
  • 175
  • 176
  • 177
  • 178
  • 179
  • 180
  • 181
  • 182
  • 183
  • 184
  • 185
  • 186
  • 187
  • 188
  • 189
  • 190
  • 191
  • 192
  • 193
  • 194
  • 195
  • 196
  • 197
  • 198
  • 199
  • 200
  • 201
  • 202
  • 203
  • 204
  • 205
  • 206
  • 207
  • 208
  • 209
  • 210
  • 211
  • 212
  • 213
  • 214
  • 215
  • 216

Okay, is it easy?

Interested Groups: 555974449

Sample:http://download.csdn.net/detail/qq_26787115/9689868

From: http://blog.csdn.net/qq_26787115/article/details/53258500

Tags: Android github xml encoding

Posted on Sat, 06 Jun 2020 12:08:16 -0400 by gnawz