KasirActivity.java

package camp.dev.kasirqueapps;

import android.Manifest;
import android.content.ActivityNotFoundException;
import android.content.Context;
import android.content.DialogInterface;
import android.content.Intent;
import android.content.pm.PackageManager;
import android.graphics.Bitmap;
import android.graphics.Canvas;
import android.graphics.Color;
import android.graphics.Paint;
import android.graphics.pdf.PdfDocument;
import android.net.Uri;
import android.os.Build;
import android.os.Bundle;
import android.util.DisplayMetrics;
import android.util.Log;
import android.view.View;
import android.view.WindowManager;
import android.widget.AdapterView;
import android.widget.EditText;
import android.widget.ImageView;
import android.widget.ListView;
import android.widget.TextView;
import android.widget.Toast;

import com.google.android.material.floatingactionbutton.FloatingActionButton;
import com.itextpdf.text.Document;
import com.itextpdf.text.DocumentException;
import com.itextpdf.text.Image;
import com.itextpdf.text.Paragraph;

import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;

import androidx.annotation.NonNull;
import androidx.appcompat.app.AlertDialog;
import androidx.appcompat.app.AppCompatActivity;
import androidx.coordinatorlayout.widget.CoordinatorLayout;
import androidx.core.app.ActivityCompat;
import camp.dev.kasirqueapps.adapter.Adapter;
import camp.dev.kasirqueapps.helper.DbHelper;
import camp.dev.kasirqueapps.model.Data;

public class KasirActivity extends AppCompatActivity {



    private static final String TAG = "PdfCreatorActivity";
    private static final int STORAGE_CODE = 1000;
    final private int REQUEST_CODE_ASK_PERMISSIONS = 111;
    private File pdfFile;
    Context context;
    Bitmap bitmap;
    CoordinatorLayout layout;
    ListView listView;
    AlertDialog.Builder dialog;
    List<Data> itemList = new ArrayList<Data>();
    Adapter adapter;
    DbHelper SQLite = new DbHelper( this );
    TextView jumlah, harga;
   static ImageView gambar,strip,strip1;
   static Image gmb, str, st1;
   static byte[] bArray;
    private TextView txt,ttl,byr, kembali, ttl1, kembali1;
    private EditText byr1;


    public static final String TAG_ID = "id";
    public static final String TAG_PRODUCT = "product";
    public static final String TAG_PRICE = "price";

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

        ActivityCompat.requestPermissions(KasirActivity.this, new String[]
                {Manifest.permission.READ_EXTERNAL_STORAGE, Manifest.permission.WRITE_EXTERNAL_STORAGE},
                PackageManager.PERMISSION_GRANTED);

        context = this;


        layout = (CoordinatorLayout)findViewById( R.id.activity_kasir );
        SQLite = new DbHelper( getApplicationContext() );

        gambar = (ImageView) findViewById( R.id.logo );
        strip = (ImageView)findViewById( R.id.garis );
        strip1= (ImageView) findViewById( R.id.garis2 );
        txt = (TextView)findViewById( R.id.text );
        ttl = (TextView)findViewById( R.id.total );
        byr = (TextView)findViewById( R.id.bayar );
        ttl1 = (TextView)findViewById( R.id.total1 );
        kembali = (TextView)findViewById( R.id.kembalian );
        kembali1 = (TextView)findViewById( R.id.kembalian1 );
        jumlah = (TextView)findViewById( R.id.total1 );
        harga = (TextView)findViewById( R.id.harga );
        byr1 = (EditText)findViewById( R.id.bayar1 );

        FloatingActionButton print = (FloatingActionButton)findViewById( R.id.print );
        print.setOnClickListener( new View.OnClickListener() {
            @Override
            public void onClick(View v) {


                CoordinatorLayout view = findViewById( R.id.activity_kasir );
                Bitmap bitmap1 = Bitmap.createBitmap( view.getWidth(), view.getHeight(), Bitmap.Config.ARGB_8888 );
                Canvas canvas = new Canvas( bitmap1 );
                view.draw( canvas );

                try {

                    Log.d( "size" , " " + layout.getWidth() + " " + layout.getHeight() );
                    bitmap = loadBitmapFromView( layout , layout.getWidth() , layout.getHeight() );


                    savePdf();
                }
                catch (Exception e){

                }


                if (Build.VERSION.SDK_INT > Build.VERSION_CODES.M){
                    if (checkSelfPermission( Manifest.permission.WRITE_EXTERNAL_STORAGE ) ==
                    PackageManager.PERMISSION_DENIED){

                        String[] permissions = {Manifest.permission.WRITE_EXTERNAL_STORAGE};
                        requestPermissions( permissions, STORAGE_CODE );

                    }
                    else{

                        savePdf();

                    }
                }
                else {

                    savePdf();
                }


            }
        } );

        FloatingActionButton fab = (FloatingActionButton) findViewById( R.id.fab );
        listView = (ListView) findViewById( R.id.list_view );

        fab.setOnClickListener( new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                Intent intent = new Intent( KasirActivity.this , AddEditActivity.class );
                startActivity( intent );


            }
        } );

        adapter = new Adapter( KasirActivity.this , itemList );
        listView.setAdapter( adapter );

        listView.setOnItemLongClickListener( new AdapterView.OnItemLongClickListener() {
            @Override
            public boolean onItemLongClick(AdapterView<?> parent , View view , int position , long id) {
                final String idx = itemList.get( position ).getId();
                final String product = itemList.get( position ).getProduct();
                final String price = itemList.get( position ).getPrice();

                final CharSequence[] dialogitem = {"Edit" , "Delete"};
                dialog = new AlertDialog.Builder( KasirActivity.this );
                dialog.setCancelable( true );
                dialog.setItems( dialogitem , new DialogInterface.OnClickListener() {
                    @Override
                    public void onClick(DialogInterface dialog , int which) {
                        switch (which) {
                            case 0:
                                Intent intent = new Intent( KasirActivity.this , AddEditActivity.class );
                                intent.putExtra( TAG_ID , idx );
                                intent.putExtra( TAG_PRODUCT , product );
                                intent.putExtra( TAG_PRICE , price );
                                startActivity( intent );
                                break;
                            case 1:
                                SQLite.delete( Integer.parseInt( idx ) );
                                itemList.clear();
                                getAllData();
                                break;
                        }
                    }
                } ).show();
                return false;
            }
        } );

        getAllData();
    }



    public static Bitmap loadBitmapFromView(View v, int width, int heiht){
        Bitmap b = Bitmap.createBitmap( width,heiht, Bitmap.Config.ARGB_8888 );
        Canvas canvas =  new Canvas( b );
        v.draw( canvas );


        return  b;
    }
    private void savePdf() {
        Document convert = new Document();
        WindowManager wm = (WindowManager)getSystemService( Context.WINDOW_SERVICE );
        DisplayMetrics displayMetrics = new DisplayMetrics();
        this.getWindowManager().getDefaultDisplay().getMetrics( displayMetrics );
        float hight = displayMetrics.heightPixels;
        float widht = displayMetrics.widthPixels;

        int convertHight = (int) hight, convertWidth = (int) widht;



        PdfDocument pdfDocument = new PdfDocument();
        PdfDocument.PageInfo pageInfo = new PdfDocument.PageInfo.Builder( convertWidth, convertHight, 1 ).create();
        PdfDocument.Page page  = pdfDocument.startPage( pageInfo );

        String tx = txt.getText().toString();
        String ls = listView.getAdapter().toString();

        String tl = ttl.getText().toString();
        String by = byr.getText().toString();
        String kmb = kembali.getText().toString();
        String tl1 = ttl1.getText().toString();
        String by1 = byr1.getText().toString();
        String kmb1 = kembali1.getText().toString();


        Canvas canvas = new Canvas(  );
        Paint paint =  new Paint(  );
        canvas.drawPaint( paint );

        bitmap = Bitmap.createScaledBitmap( bitmap, convertHight, convertWidth, true );

        paint.setColor( Color.BLUE );
        canvas.drawBitmap( bitmap,0,0, null );



        pdfDocument.finishPage( page );


       String targetPdf = "kasirque.pdf";
       File filePath;
       filePath = new File( targetPdf );
       try{
           pdfDocument.writeTo( new FileOutputStream( filePath ) );

           convert.addAuthor( "Fernando Teguh" );

           convert.add( new Paragraph( tx ) );
           convert.add( new Paragraph( ls ) );
           convert.add( new Paragraph( tl ) );
           convert.add( new Paragraph( by ) );
           convert.add( new Paragraph( kmb ) );
           convert.add( new Paragraph( tl1 ) );
           convert.add( new Paragraph(by1 ) );
           convert.add( new Paragraph( kmb1) );
       } catch (IOException | DocumentException e){
           e.printStackTrace();
           Toast.makeText( this , "Something Wrong" + e.toString() , Toast.LENGTH_SHORT ).show();
       }

       pdfDocument.close();
        Toast.makeText( this, "PDF is Created!!!" , Toast.LENGTH_SHORT ).show();

        openGeneratePDF();
    }

    private void openGeneratePDF(){
        File file = new File( "kasirque.pdf" );
        if (file.exists()){
            Intent intent =  new Intent( Intent.ACTION_VIEW );
            Uri uri  = Uri.fromFile( file );
            intent.setDataAndType( uri, "application/pdf" );
            intent.setFlags( Intent.FLAG_ACTIVITY_CLEAR_TOP );

            try{
                startActivity( intent );
            }
            catch (ActivityNotFoundException e)
            {
                Toast.makeText( KasirActivity.this , "No Application Available to view PDF" , Toast.LENGTH_SHORT ).show();
            }
        }
    }

    @Override
    public void onRequestPermissionsResult(int requestCode , @NonNull String[] permissions , @NonNull int[] grantResults) {
        switch (requestCode){
            case STORAGE_CODE: {
                if (grantResults.length > 0 && grantResults[0] == PackageManager.PERMISSION_DENIED){
                    savePdf();
                }
                else{
                    Toast.makeText( this , "Permission Denied.." , Toast.LENGTH_SHORT ).show();
                }
            }
        }
    }

    private void getAllData() {
        ArrayList<HashMap<String, String>> row = SQLite.getAllData();

        for (int i = 0; i < row.size(); i++) {
            String id = row.get( i ).get( TAG_ID );
            String barang = row.get( i ).get( TAG_PRODUCT );
            String harga = row.get( i ).get( TAG_PRICE );

            Data data = new Data();

            data.setId( id );
            data.setProduct( barang );
            data.setPrice( harga );

            itemList.add( data );
        }

        adapter.notifyDataSetChanged();
    }

 private int getTotal(){
        ArrayList<HashMap<String, String>> row = SQLite.getAllData();
        int total = 0;
        for (int i = 0; i < itemList.size(); i++){
            String harga = row.get( i ).get( TAG_PRICE );
            int hasil  = Integer.parseInt( harga );

            jumlah = (TextView)findViewById( R.id.total1 );
            total = total + hasil;
            jumlah.setText( total );
        }

        return total;
 }

    @Override
    protected void onResume(){
        super.onResume();
        itemList.clear();
        getAllData();
    }



}