Firstly, we discussed about the requirements in the User app and designed the rough layout using pen and paper, so that we get some idea about the convenience of End-User. It’s very important to think from the perspective of the person or group, to whom you are delivering the product. This is the key rule in business. Even the client company Zodix, was also concerned more about this User App.
Tomorrow on wards we will start our work on this app.
Today, we had to give the app to the client for testing at their side. So, the last thing which I was assigned was to design the dashboard for the app.
I used grid view for that purpose.
<GridView
android:id="@+id/gridView"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:scrollbars="none"
android:columnWidth="90dp"
android:numColumns="2"
android:stretchMode="columnWidth"
android:listSelector="@android:color/transparent"
android:gravity="center"/>
Calling the adapter class, which is a subclass of BaseAdapter , for inflating the views :
gridView=(GridView)findViewById(R.id.gridView); gridView.setAdapter(new GridViewAdapter(this, list, img));
GridViewAdapter’s getView method :
@Override
public View getView(final int position, View convertView, ViewGroup parent) {
View rowView;
LayoutInflater inflater=(LayoutInflater)context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
rowView=inflater.inflate(R.layout.grid_item_layout,null);
ImageView imgs=(ImageView)rowView.findViewById(R.id.imageViewItem);
TextView txt=(TextView)rowView.findViewById(R.id.textViewItem);
txt.setText(nameList[position]);
imgs.setImageResource(img[position]);
return rowView;
}
Similar to that of orders, I also had to create an activity for viewing the package slips PDF which has been generated by Admin after scanning the packages.
Following is the screen output :
Now I had to show a dialog showing list of applications installed in phone which can open .pdf file, on click of any PDF list item.
Here’s the output :
Following code, I have written, for this purpose :
recView.addOnItemTouchListener(new RecyclerViewItemClickListener(ActivityPDFs.this,
new RecyclerViewItemClickListener.OnItemClickListener() {
@Override
public void onItemClick(View view, int position) {
String path = ordersFileList.get(position).getFilePath();
File file = new File(path);
Intent target = new Intent(Intent.ACTION_VIEW);
target.setDataAndType(Uri.fromFile(file),"application/pdf");
target.setFlags(Intent.FLAG_ACTIVITY_NO_HISTORY);
Intent intent = Intent.createChooser(target, "Open File");
try {
startActivity(intent);
} catch (ActivityNotFoundException e) {
}
}
}));
Next task was to show the list of PDFs which has been generated by Admin.
Here is the screenshot of this Activity :
This Method fetches all the PDFs from a particular directory of phone.
void fetchPDFs(){
try{
File directory = new File(path);
if(directory.exists()){
File[] fileArr = directory.listFiles();
String fileName;
for(File file1 : fileArr){
if(!file1.isDirectory()){
fileName = file1.getName();
if(fileName.endsWith(".pdf")){
list.add(new PdfFileBean(fileName, file1.getAbsolutePath()));
}
}
}
}
}catch(Exception e){
Log.i("show","Something went wrong. "+e.toString());
}
}
Today’s task was to generate the PDFs of orders and package slips. I did this using very popular library iTextPDF. The best tutorial for using this library in Android is given here.
For using this library –
Add in the dependencies, the following line –
compile files('libs/itextpdf-5.5.12.jar')
Method for Generating PDF :
public String generatePDF(){
try {
String directoryPath = "sdcard/someDir/";
File directory = new File(directoryPath);
if(!directory.exists()){
directory.mkdirs();
}
Date date = new Date() ;
SimpleDateFormat dateFormat = new SimpleDateFormat("yyyy-MM-dd HH-mm-ss") ;
String dateStr = dateFormat.format(date);
File file = new File(directoryPath+"/"+dateStr + ".pdf");
if (!file.exists()) {
file.createNewFile();
}
Document document = new Document();
PdfWriter.getInstance(document,
new FileOutputStream(file.getAbsoluteFile()));
document.open();
Paragraph p = new Paragraph();
addEmptyLine(p, 1);
Paragraph p1 = new Paragraph("DETAILS", catFont);
p1.setAlignment(Element.ALIGN_CENTER);
p.add(p1);
addEmptyLine(p, 3);
PdfPTable table = new PdfPTable(2);
PdfPCell c1 = new PdfPCell();
c1.setPadding(cellPadding);
c1.setHorizontalAlignment(Element.ALIGN_CENTER);
c1.setPhrase(new Phrase("Product", tableHeading));
table.addCell(c1);
table.setHeaderRows(1);
//populate the table using Table Cells and actual data
document.add(p);
document.add(table);
document.close();
return dateFormat.format(date)+".pdf";
} catch (IOException e) {
e.printStackTrace();
return null;
} catch (DocumentException e) {
e.printStackTrace();
return null;
}
}
Today, I worked on Prepare Order module where admin is allowed to scan the QR code of the package which is packaged to be delivered to customer.
I searched a lot about fast scanner library for android. I found Zebra Crossing Scanner which is very popular and used by many.
It’s very easy to use.
Add its dependency in the build.gradle file.
'com.journeyapps:zxing-android-embedded:3.4.0'
In the Java file of activity :
private IntentIntegrator qrScan = new IntentIntegrator(this);
btnScanProducts.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
qrScan.initiateScan();
}
});
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
IntentResult result = IntentIntegrator.parseActivityResult(requestCode, resultCode, data);
if (result != null) {
//if qrcode has nothing in it
if (result.getContents() != null) {
//add to list
}
} else {
super.onActivityResult(requestCode, resultCode, data);
}
}
After the Scanner stops, the result is handled by onActivityResult.
I created an activity which shows the list of orders to admin. I added popup menu with list item of orders. Admin can the products which have been ordered.
Here the screens:
Tomorrow I will work on Prepare Order and Generate PDF option.
Next task was to design activities for admin where he can register Agents and Clients. Before that we also had to design Add City activity, which was being done by other fellow of mine.
I completed these modules at last. Tomorrow I will start with Orders Module where admin can view all the orders.
Similar to the categories, I designed the activity layout for the Products as well. It was easy as I had done it earlier.
In the Add products activity, I added the details which the company needs to view and I finished off this module at last.
workAday 