我正在尝试生成PDF格式的报告，其中数据来自Sqlite Database。我使用itextg库生成PDF。但问题是，生成的pdf文件仅显示在内容之下。
1.费用报告
报告于2007年3月7日17:50:43 GMT +05：30 2017年生成
我从sqlite数据库中获取的数据未显示有人可以帮我解决我无法识别的问题。
以下是我的代码：
public class GenerateReport extends Activity implements OnClickListener {
int date1, date2;
Cursor c;
private static Font catFont = new Font(Font.FontFamily.TIMES_ROMAN, 18,
Font.BOLD);
private static Font redFont = new Font(Font.FontFamily.TIMES_ROMAN, 12,
Font.NORMAL, BaseColor.RED);
private static Font subFont = new Font(Font.FontFamily.TIMES_ROMAN, 16,
Font.BOLD);
private static Font smallBold = new Font(Font.FontFamily.TIMES_ROMAN, 12,
Font.BOLD);
private static String FILE;
Button bpdf;
int counter = 0;
static ArrayList<String> category;
static ArrayList<String> mode;
static ArrayList<Integer> amount;
static ArrayList<String> date;
View backg;
// You can access the static variables from nonstatic methods
private TextView text_date1, text_date2,tv_date1,tv_date2;
private DatePicker date_picker1, date_picker2;
private Button bstart_date, bend_date;
private int year1, year2;
private int month1, month2;
private int day1, day2;
static final int DATE_DIALOG_ID1 = 100;
static final int DATE_DIALOG_ID2 = 200;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.generate_report);
backg = findViewById(R.drawable.words_bgred);
loadPreference();
if (Environment.getExternalStorageState().equals(
Environment.MEDIA_MOUNTED)) {
// sd card mounted
}
File direct = new File(Environment.getExternalStorageDirectory()
+ "/ExpenseManager");
if (!direct.exists()) {
if (direct.mkdir()) {
// directory is created;
}
}
bpdf = (Button) findViewById(R.id.bpdf_gen);
bpdf.setOnClickListener(this);
bpdf.setEnabled(false);
setCurrentDate();
addButtonListener1();
setEndDate();
addButtonListener2();
}
private static void addContent(Document document) throws DocumentException {
Anchor anchor = new Anchor("Expense Report", catFont);
anchor.setName("Expense Report");
Chapter catPart = new Chapter(new Paragraph(anchor), 1);
Paragraph paragraph = new Paragraph();
paragraph.add(new Paragraph("Report generated on " + new Date(),
smallBold));
addEmptyLine(paragraph, 3);
catPart.add(paragraph);
createTable(catPart);
document.add(catPart);
Log.e("meta", "content");
}
@Override
public void onBackPressed() {
// TODO Auto-generated method stub
super.onBackPressed();
finish();
}
private void vibrate(int ms) {
((Vibrator) getSystemService(Context.VIBRATOR_SERVICE)).vibrate(ms);
}
private static void createTable(Section catPart) throws BadElementException {
PdfPTable table = new PdfPTable(4);
for (int i = 0; i < category.size(); i++) {
Log.e("category...", category.get(i));
Log.e("mode...", mode.get(i));
Log.e("amt...", "amt" + amount.get(i));
Log.e("date2...", "date" + date.get(i));
}
PdfPCell c1 = new PdfPCell(new Phrase("Category Name"));
c1.setHorizontalAlignment(Element.ALIGN_CENTER);
table.addCell(c1);
c1 = new PdfPCell(new Phrase("Amount Spent (Rs)"));
c1.setHorizontalAlignment(Element.ALIGN_CENTER);
table.addCell(c1);
c1 = new PdfPCell(new Phrase("Date"));
c1.setHorizontalAlignment(Element.ALIGN_CENTER);
table.addCell(c1);
c1 = new PdfPCell(new Phrase("Payment Mode"));
c1.setHorizontalAlignment(Element.ALIGN_CENTER);
table.addCell(c1);
table.setHeaderRows(1);
for (int i = 0; i < category.size(); i++) {
table.addCell(category.get(i));
table.addCell(amount.get(i) + "");
table.addCell(date.get(i));
table.addCell(mode.get(i));
}
catPart.add(table);
Log.e("meta", "table");
}
private static void addEmptyLine(Paragraph paragraph, int number) {
for (int i = 0; i < number; i++) {
paragraph.add(new Paragraph(" "));
}
}
@Override
public void onClick(View arg0) {
// vibrate(50);
// TODO Auto-generated method stub
try {
category = new ArrayList<String>();
mode = new ArrayList<String>();
amount = new ArrayList<Integer>();
date = new ArrayList<String>();
if (date1 > date2) {
Toast.makeText(getApplicationContext(),
"Start Date should be less than End Date",
Toast.LENGTH_LONG).show();
Log.e("date1", date1 + " " + date2);
}
else {
DbClass dc = new DbClass(this);
dc.open();
c = dc.showResultInPdf(date1, date2);
for (c.moveToFirst(); !c.isAfterLast(); c.moveToNext()) {
category.add(c.getString(1));
mode.add(c.getString(4));
amount.add(c.getInt(2));
String change = c.getString(3);
change = change.substring(0, 8);
Log.e("change", change);
date.add(change);
}
dc.close();
Toast.makeText(
getApplicationContext(),
"Pdf Report Generated and saved in \n "
+ Environment.getExternalStorageDirectory()
.getAbsolutePath() + "/ExpenseManager",
Toast.LENGTH_LONG).show();
final Calendar calendar = Calendar.getInstance();
int year_current = calendar.get(Calendar.YEAR);
int month_current = calendar.get(Calendar.MONTH) + 1;
int day_current = calendar.get(Calendar.DAY_OF_MONTH);
String print = day_current + "-" + month_current + "-"
+ year_current;
savePreference();
FILE = Environment.getExternalStorageDirectory()
+ "/ExpenseManager/ExpenseManager" + " " + print + "("
+ counter + ")" + ".pdf";
Document document = new Document();
PdfWriter.getInstance(document, new FileOutputStream(FILE));
document.open();
addContent(document);
document.close();
}
}
catch (Exception e) {
e.printStackTrace();
}
}
private void savePreference() {
counter++;
SharedPreferences sp = getSharedPreferences("AppSharedPref", 0);
Editor editor = sp.edit();
editor.putInt("count", counter);
editor.commit();
}
private void loadPreference() {
SharedPreferences sp = getSharedPreferences("AppSharedPref", 0);
counter = sp.getInt("count", 0);
}
public void setCurrentDate() {
text_date1 = (TextView) findViewById(R.id.text_date1);
tv_date1 = (TextView) findViewById(R.id.date_label1);
date_picker1 = (DatePicker) findViewById(R.id.date_picker1);
final Calendar calendar = Calendar.getInstance();
year1 = calendar.get(Calendar.YEAR);
month1 = calendar.get(Calendar.MONTH);
day1 = calendar.get(Calendar.DAY_OF_MONTH);
text_date1.setText(new StringBuilder()
.append(day1).append("/").append(month1 + 1).append("/")
.append(year1).append(" "));
date_picker1.init(year1, month1, day1, null);
String s = new StringBuilder().append(year1).append(month1 + 1)
.append(day1).toString();
date1 = Integer.parseInt(s);
}
public void setEndDate() {
text_date2 = (TextView) findViewById(R.id.text_date2);
tv_date2 = (TextView) findViewById(R.id.date_label2);
date_picker2 = (DatePicker) findViewById(R.id.date_picker2);
final Calendar calendar = Calendar.getInstance();
year2 = calendar.get(Calendar.YEAR);
month2 = calendar.get(Calendar.MONTH);
day2 = calendar.get(Calendar.DAY_OF_MONTH);
// set current date into textview
text_date2.setText(new StringBuilder()
// Month is 0 based, so you have to add background1
.append(day2).append("/").append(month2 + 1).append("/")
.append(year2).append(" "));
// set current date into Date Picker
date_picker2.init(year2, month2, day2, null);
String s = new StringBuilder().append(year2).append(month2 + 1)
.append(day2).toString();
date2 = Integer.parseInt(s);
}
public void addButtonListener1() {
bstart_date = (Button) findViewById(R.id.bstart_date);
bstart_date.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
showDialog(DATE_DIALOG_ID1);
}
});
}
public void addButtonListener2() {
bend_date = (Button) findViewById(R.id.bend_date);
bend_date.setEnabled(false);
bend_date.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
showDialog(DATE_DIALOG_ID2);
}
});
}
@Override
protected Dialog onCreateDialog(int id) {
if (id == DATE_DIALOG_ID1) {
return new DatePickerDialog(this, datePickerListener1, year1,
month1, day1);
}
else if (id == DATE_DIALOG_ID2) {
return new DatePickerDialog(this, datePickerListener2, year2,
month2, day2);
}
return null;
}
private DatePickerDialog.OnDateSetListener datePickerListener1 = new DatePickerDialog.OnDateSetListener() {
// when dialog box is closed, below method will be called.
public void onDateSet(DatePicker view, int selectedYear,
int selectedMonth, int selectedDay) {
year1 = selectedYear;
month1 = selectedMonth + 1;
day1 = selectedDay;
// set selected date into Text View
text_date1.setText(new StringBuilder().append(day1).append("/")
.append(month1).append("/").append(year1).append(" "));
text_date1.setVisibility(View.VISIBLE);
tv_date1.setVisibility(View.VISIBLE);
// set selected date into Date Picker
date_picker1.init(year1, month1, day1, null);
String s = year1 + "" + (month1 < 10 ? ("0" + month1) : (month1))
+ "" + (day1 < 10 ? ("0" + day1) : (day1));
date1 = Integer.parseInt(s);
bend_date.setEnabled(true);
}
};
private DatePickerDialog.OnDateSetListener datePickerListener2 = new DatePickerDialog.OnDateSetListener() {
// when dialog box is closed, below method will be called.
public void onDateSet(DatePicker view, int selectedYear,
int selectedMonth, int selectedDay) {
year2 = selectedYear;
month2 = selectedMonth + 1;
day2 = selectedDay;
text_date2.setText(new StringBuilder().append(day2).append("/")
.append(month2).append("/").append(year2).append(" "));
text_date2.setVisibility(View.VISIBLE);
tv_date2.setVisibility(View.VISIBLE);
date_picker2.init(year2, month2, day2, null);
String s = year2 + "" + (month2 < 10 ? ("0" + month2) : (month2))
+ "" + (day2 < 10 ? ("0" + day2) : (day2));
date2 = Integer.parseInt(s);
bpdf.setEnabled(true);
}
};
答案 0 :(得分：0)
表格未正确创建，这就是数据未保存到pdf中的原因。