Develop Reference

I am getting single bar chart on stacked Barchart which I am adding values dynamically.I need to get all bar charts

I need to get all bars but I am getting single bar (last array).Even the logic is right.I don't know please help me.Thanks in advance.I search in google but I didn't got answer.
Below is main part of full code
Initialize
String empName[];
int converted[], notconverted[], notcontacted[];
Here I made Json parsing the data coming from the server
for (int i = 0; i < employees_array.length(); i++) {
empName = new String[employees_array.length()];
converted = new int[employees_array.length()];
notconverted = new int[employees_array.length()];
notcontacted = new int[employees_array.length()];
JSONObject empData = employees_array.getJSONObject(i);
empName[i] = empData.getString("EmployeeName");
empName[i].replace("-?\\d+.\\d+", " ");
if (empData.has("ConvertedActionCount")) {
converted[i] = employees_array.getJSONObject(i).getInt("ConvertedActionCount");
}
if (empData.has("NotConvertedActionCount")) {
notconverted[i] = employees_array.getJSONObject(i).getInt("NotConvertedActionCount");
}
if (empData.has("NotContactedActionCount")) {
notcontacted[i] = employees_array.getJSONObject(i).getInt("NotContactedActionCount");
}
Log.d("arraysize", converted[i] + "");
function_EMPChart(empArraysize, empName, converted,
notconverted, notcontacted);
I am passing values to function Emp chart method
private void function_EMPChart(int empArraysize, String[] s, int[]
converted, int[] notconverted, int[] notcontacted) {
XAxis xl = msc_managerDashboard_empStats.getXAxis();
xl.setPosition(XAxis.XAxisPosition.BOTTOM);
xl.setDrawAxisLine(true);
xl.setDrawGridLines(false);
xl.setGranularity(10f);
YAxis yl = msc_managerDashboard_empStats.getAxisLeft();
yl.setDrawAxisLine(true);
yl.setDrawGridLines(true);
yl.setAxisMinimum(0f); // this replaces setStartAtZero(true)
YAxis yr = msc_managerDashboard_empStats.getAxisRight();
yr.setDrawAxisLine(true);
yr.setDrawGridLines(false);
yr.setAxisMinimum(0f);
ArrayList<BarEntry> yVals = new ArrayList<BarEntry>();
ArrayList<String> xVals = new ArrayList<>();
xVals = new ArrayList<String>(Arrays.asList(s));
msc_managerDashboard_empStats.setFitBars(true);
for (int j = 0; j < s.length; j++) {
Log.d("checklength", j + "");
int value1 = converted[j];
int value2 = notconverted[j];
int value3 = notcontacted[j];
Log.d("getvalue", value1 + " " + value2 + " " + value3);
yVals.add(new BarEntry(j, new float[]{value1, value2, value3}));
yVals.add(new BarEntry(4, new float[]{10.0f, 20.0f, 30.0f}));
yVals.add(new BarEntry(5, new float[]{5.0f, 15.0f, 20.0f}));
Log.d("checky", yVals.add(new BarEntry(j, new float[]{converted[j], notconverted[j], notcontacted[j]})) + "");
}
BarDataSet set1 = new BarDataSet(yVals, "");
set1.setColors(getColors());
ArrayList<IBarDataSet> dataSets = new ArrayList<IBarDataSet>();
dataSets.add(set1);
BarData data = new BarData(dataSets);
data.notifyDataChanged();
msc_managerDashboard_empStats.setData(data);
msc_managerDashboard_empStats.notifyDataSetChanged();
msc_managerDashboard_empStats.invalidate();
Log.d("yvalues", yVals + "");
msc_managerDashboard_empStats.setFitBars(true);
}

I guess you are using this library.
I don't really understand your code in what you try to accomplish (I see multiple bars per employee I guess).
At least what is wrong, you call setData within this for loop for (int i = 0; i < employees_array.length(); i++), which means you override the data every time.
You should create a list of BarDataSets in that for loop and set the data in the end.
Your main issue here is that you create a new set of data every time. If you keep the same set your code might also work. Define dataSets once in the beginning and keep adding your sets. I mean this line:
ArrayList<IBarDataSet> dataSets = new ArrayList<IBarDataSet>();
dataSets.add(set1);
I guess you want to have a grouped bar chart which you can find here: https://github.com/PhilJay/MPAndroidChart/wiki/Setting-Data#grouped-barchart
Example:
YourData[] group1 = ...;
YourData[] group2 = ...;
List<BarEntry> entriesGroup1 = new ArrayList<>();
List<BarEntry> entriesGroup2 = new ArrayList<>();
// fill the lists
for(int i = 0; i < group1.length; i++) {
entriesGroup1.add(new BarEntry(i, group1.getValue()));
entriesGroup2.add(new BarEntry(i, group2.getValue()));
}
BarDataSet set1 = new BarDataSet(entriesGroup1, "Group 1");
BarDataSet set2 = new BarDataSet(entriesGroup2, "Group 2");
BarData data = new BarData(set1, set2);
data.setBarWidth(barWidth); // set the width of each bar
barChart.setData(data);
barChart.groupBars(1980f, groupSpace, barSpace); // perform the "explicit" grouping
barChart.invalidate(); // refresh

How to customize value for numbers in NumberPicker in android?

I have a number picker for setting a data limit in MB. right now, I have numberPicker, contains numeric values in sequence like [1,2,3,....., 2000 MB].
But I want a numberPicker that should contain numeric values like [100,200,300,...., 2000MB].
How can I do this?

Displayed array values for your picker
int NUMBER_OF_VALUES = 20; //num of values in the picker
int PICKER_RANGE = 100;
...
String[] displayedValues = new String[NUMBER_OF_VALUES];
//Populate the array
for(int i=0; i<NUMBER_OF_VALUES; i++)
displayedValues[i] = String.valueOf(PICKER_RANGE * (i+1));
/* OR: if the array is easy to be hard-coded, then just hard-code it:
String[] displayedValues = {"100", "200", "300", .....}; */
Set arr in your picker :
numPicker.setMinValue(0);
numPicker.setMaxValue(displayedValues.size()-1);
numPicker.setDisplayedValues(displayedValues);
get/set the value of the picker :
//To get the current value in the picker
choosenValue = displayedValues[numPicker.getValue()];
//To set a new value (let's say 150)
for( int i=0; i<displayedValues.length ; i++ )
if( displayedValues[i].equals("300") )
numPicker.setValue(i);

Try the code below
int start = 100;
String[] numbers = new String[20];
for(int i =0 ; i < 20 ; i++) {
numbers[i] = start + "";
start = start + 100;
}
NumberPicker numberPicker = (NumberPicker) findViewById(R.id.id_number_picker);
numberPicker.setMaxValue(20);
numberPicker.setMinValue(1);
numberPicker.setDisplayedValues(numbers);

final String[] nums = new String[21];
for(int i=0; i<nums.length; i++) {
nums[i] = Integer.toString((i+1)*100);
}
numberPicker.setMinValue(0);
numberPicker.setMinValue(19);
numberPicker.setDisplayedValues(nums);

How to move Date under X axis?

I am using PhilJay/MPAndroidChart library in my app and I'd like to know if 2 things are possible:
to show the last 14 days and then scroll for previous days?
Can the dates (currently on the top of the graph) be moved to the bottom, along the x axis?
Here is the current pic from the app and where i want to move date
my method:
private void populateGraph(Cursor data) {
ArrayList<Entry> cravingsPoints = new ArrayList<Entry>();
ArrayList<Entry> severityPoints = new ArrayList<Entry>();
ArrayList<String> dates = new ArrayList<String>();
int index = 0;
for (int i = 0; i < data.getCount(); i++) {
if (i == 0) {
// if orientation changed we need to start from the first one again
data.moveToFirst();
} else {
data.moveToNext();
}
try {
String date = data.getString(data.getColumnIndex(SmokeFreeContentProvider.DIARY_DATE));
int cravings = data.getInt(data.getColumnIndex(SmokeFreeContentProvider.DIARY_CRAVINGS_COUNT));
int severity = data.getInt(data.getColumnIndex(SmokeFreeContentProvider.DIARY_CRAVINGS_SEVERITY));
DateTime diaryEntry = DateTimeFormat.forPattern("yyyyMMdd").parseDateTime(date);
String entryLabel = diaryEntry.toString("dd MMM");
cravingsPoints.add(new Entry(cravings, index));
severityPoints.add(new Entry(severity, index));
dates.add(entryLabel);
index++;
} catch (Exception e) {
Log.e("SmokeFreeCravingsGraph", e.getMessage(), e);
}
}
LineDataSet cravingsLineData = new LineDataSet(cravingsPoints, getString(R.string.cravings));
LineDataSet severityLineData = new LineDataSet(severityPoints, getString(R.string.severity));
cravingsLineData.setCircleSize(4f);
cravingsLineData.setLineWidth(6f);
cravingsLineData.setColor(getResources().getColor(R.color.green));
severityLineData.setCircleSize(4f);
severityLineData.setLineWidth(6f);
severityLineData.setColor(getResources().getColor(android.R.color.holo_blue_light));
ArrayList<LineDataSet> dataSets = new ArrayList<LineDataSet>();
dataSets.add(cravingsLineData);
dataSets.add(severityLineData);
Paint infoPaint = new Paint(Paint.ANTI_ALIAS_FLAG);
infoPaint.setTextAlign(Paint.Align.CENTER);
infoPaint.setTextSize(com.github.mikephil.charting.utils.Utils.convertDpToPixel(14f));
infoPaint.setColor(getResources().getColor(R.color.dark_grey));
mChart.setDrawGridBackground(false);
mChart.setDrawYValues(false);
mChart.setDescription("");
mChart.setStartAtZero(true);
mChart.setPaint(infoPaint, Chart.PAINT_INFO);
mChart.setNoDataText(getString(R.string.no_cravings_info));
mChart.setNoDataTextDescription(getString(R.string.no_cravings_full_info));
mChart.setData(new LineData(dates, dataSets));
}

Yes, check the documentation: Modifying the Viewport
Take a look at the setVisibleXRange(float xRange) method.
Yes, check the documentation: XAxis
Take a look at the xAxis.setPosition(...) method.

how add date to TimeSeries in LineGraph achartengine

I use AchartEngine to create a LineGraph.
I have the data from the database in the format:
dd-mm-yyyy count
for example:
01-05-2013 3
01-08-2013 7
01-11-2013 4
01-12-2013 15
...
code fragment
...
int values = new Date[myCursor.getCount()];
Date[] dat = new Date[myCursor.getCount()];
SimpleDateFormat dfIn = new SimpleDateFormat("yyyy-MM-dd");
do{
try {
dat[kk]=dfIn.parse(myCursor.getString(0));
values[kk]=myCursor.getInt(1);
}
catch (ParseException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
kk++;
}
while(myCursor.moveToNext());
...
TimeSeries series = new TimeSeries("Line1");
for( int i = 0; i < dat.length; i++)
{
series.add(datki[i], values[i]);
}
I have a questions:
Dates and values ​​I hold in separate tables.
How can I add to TimeSeries this data ???
Is it possible to add the date in the format mm-yyyy ???
Please help

If using chartfactory :
intent = ChartFactory.getTimeChartIntent(this, getDateDemoDataset(), getDemoRenderer(), "MM-yyyy");
If using timechart:
TimeChart chart = new TimeChart(dataset, renderer);
chart.setDateFormat("MM-yyyy");

Set String values on x-axis on graph?

I have a lineGraph with float values on both x-axis and y-axis? My question is that how can i set String values on x-axis like date or name of months.I am using GraphView-3.0.jar library.my code is
values_list.add(1.0);
values_list.add(5.0);
values_list.add(9.0);
values_list.add(12.0);
values_list.add(17.0);
values_list.add(1.0);
values_list.add(13.0);
values_list.add(23.0);
graphData = new GraphViewData[(values_list.size())];
double price_copy = 0;
for (int i = 0; i < values_list.size(); i++) {
price_copy = values_list.get(i);
graphData[i] = new GraphViewData(i, price_copy);
}
GraphView graphView;
graphView = new LineGraphView(this // context
, "" );// graphView.addSeries(exampleSeries);// data
graphView.addSeries(new GraphViewSeries("values",
new GraphViewStyle(Color.rgb(00, 00, 128), 3),
graphData));
graphView.setShowLegend(true);
// set view port, start=2, size=40
graphView.setViewPort(0, 10);
graphView.setScalable(true);
graphView.setScrollable(true);
LinearLayout layout = (LinearLayout) findViewById(R.id.LNL_CHART);
layout.addView(graphView);
Also i have no idea about AchartEngine,thanks in advance.

Use achart engine library. you can search for that on google. it helped me.Thanks

Just use the label formatter. You could store your x-labels as string in an array.
For example:
final String[] xLabels = new String[] {
"foo", "bar", "third", "bla", "more"
};
GraphView graphView = new LineGraphView(this, "example") {
   #Override
   protected String formatLabel(double value, boolean isValueX) {
      if (isValueX) {
         return xLabels[(int) value];
      } else {
         // return y label as number
         return super.formatLabel(value, isValueX); // let the y-value be normal-formatted
      }
   }
};