我有一个类打开存储在原始资源中的空白字符表（对于LARP），然后使用iText将一些值添加到空字段中。 PDF正好存储在/data/data/package/files中，但当我尝试使用OpenPDF方法时，出现EACCES (permission denied)错误。如果我尝试使用adb将其导出到我的计算机，我可以在PDF查看器/编辑器中打开它，没有任何问题。
Android开发还是比较新的，所以我不知道为什么我会得到Permission Denied。
imports...
/**
* Created by Matt on 10/15/2014.
*/
public class SheetBuilder {
private final String LOGTAG = getClass().getName();
private Context context;
private InputStream inputStream;
private OutputStream outputStream = null;
private PdfReader reader = null;
private Document document;
private PdfWriter writer = null;
private String outputFileName;
private PdfContentByte canvas;
private int alignment = Element.ALIGN_LEFT;
public SheetBuilder(Context context, int sourceFile, String outputFileName) {
this.outputFileName = outputFileName.replace(".pdf", "") + ".pdf";
this.context = context;
inputStream = context.getResources().openRawResource(sourceFile);
try {
reader = new PdfReader(inputStream);
} catch (IOException e) {
e.printStackTrace();
}
try {
outputStream = context.openFileOutput(this.outputFileName, context.MODE_PRIVATE);
} catch (Exception e) {
e.printStackTrace();
}
document = new Document(reader.getPageSize(1));
try {
writer = PdfWriter.getInstance(document, outputStream);
} catch (DocumentException e) {
e.printStackTrace();
}
document.open();
canvas = writer.getDirectContent();
}
public void OpenPDF() {
ContextWrapper cw = new ContextWrapper(context);
File path = cw.getFilesDir();
File pdfFile = new File(path + "/" + outputFileName);
if(pdfFile.exists())
{
Log.i(LOGTAG, "Found " + outputFileName);
Uri uriPath = Uri.fromFile(pdfFile);
Intent pdfIntent = new Intent(Intent.ACTION_VIEW);
pdfIntent.setDataAndType(uriPath, "application/pdf");
pdfIntent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
try {
context.startActivity(pdfIntent);
} catch (ActivityNotFoundException e) {
Toast.makeText(context, "No application available to view PDF", Toast.LENGTH_LONG).show();
}
}
}
public void ImportPage(int PageNumber) {
if(PageNumber == 0) PageNumber = 1;
PdfImportedPage page = writer.getImportedPage(reader, PageNumber);
document.newPage();
canvas.addTemplate(page, 0, 0);
}
public void setAlignment(int Alignment) {
this.alignment = Alignment;
}
public void setAlignment() {
this.alignment = Element.ALIGN_LEFT;
}
public void AddBasicPhrase(String phrase, float x, float y, float rotation) {
Phrase p = new Phrase(phrase);
ColumnText.showTextAligned(canvas, alignment, p, x, y, rotation);
}
public void AddBasicPhrase(String phrase, float x, float y) {
AddBasicPhrase(phrase, x, y, 0);
}
public void Close() {
document.close();
if (outputStream != null) {
try {
outputStream.flush();
outputStream.close();
inputStream.close();
} catch (IOException e) {
e.printStackTrace();
}
}
}
}
答案 0 :(得分：1)
找到我自己的解决方案。更改标有以下评论。如果我做了一些我不应该做的事，请纠正我。发现＆＃34;外部与内部＆＃34;文件存储是我的问题。
/**
* Created by Matt on 10/15/2014.
*/
public class SheetBuilder {
private final String LOGTAG = getClass().getName();
private Context context;
private InputStream inputStream;
private OutputStream outputStream = null;
private PdfReader reader = null;
private Document document;
private PdfWriter writer = null;
private String outputFileName;
private PdfContentByte canvas;
private int alignment = Element.ALIGN_LEFT;
public SheetBuilder(Context context, int sourceFile, String outputFileName) {
this.outputFileName = outputFileName.replace(".pdf", "") + ".pdf";
this.context = context;
inputStream = context.getResources().openRawResource(sourceFile);
try {
reader = new PdfReader(inputStream);
} catch (IOException e) {
e.printStackTrace();
}
/* Changes From Here */
try {
File path = Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_DOCUMENTS);
File file = new File(path, this.outputFileName);
Log.i("ExternalStorage", file.getAbsolutePath());
path.mkdirs();
outputStream = new FileOutputStream(file);
} catch (FileNotFoundException e) {
e.printStackTrace();
} catch (Exception e) {
e.printStackTrace();
}
/* To Here */
document = new Document(reader.getPageSize(1));
try {
writer = PdfWriter.getInstance(document, outputStream);
} catch (DocumentException e) {
Log.e("ErrorsAllAround", "Nope!");
e.printStackTrace();
}
document.open();
canvas = writer.getDirectContent();
}
public void OpenPDF() {
/* Changes From Here */
File pdfFile = new File(Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_DOCUMENTS), outputFileName);
/* To Here */
if(pdfFile.exists())
{
Log.i(LOGTAG, "Found " + pdfFile.getAbsolutePath());
Uri uriPath = Uri.fromFile(pdfFile);
Intent pdfIntent = new Intent(Intent.ACTION_VIEW);
pdfIntent.setDataAndType(uriPath, "application/pdf");
pdfIntent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
try {
context.startActivity(pdfIntent);
} catch (ActivityNotFoundException e) {
Toast.makeText(context, "No application available to view PDF", Toast.LENGTH_LONG).show();
}
}
else
{
Log.i(LOGTAG, "File Not Found: " + pdfFile.getAbsolutePath());
Toast.makeText(context, "File Not Found: " + pdfFile.getAbsolutePath(), Toast.LENGTH_LONG).show();
}
}
public void ImportPage(int PageNumber) {
if(PageNumber == 0) PageNumber = 1;
PdfImportedPage page = writer.getImportedPage(reader, PageNumber);
document.newPage();
canvas.addTemplate(page, 0, 0);
}
public void setAlignment(int Alignment) {
this.alignment = Alignment;
}
public void setAlignment() {
this.alignment = Element.ALIGN_LEFT;
}
public void AddBasicPhrase(String phrase, float x, float y, float rotation) {
Phrase p = new Phrase(phrase);
ColumnText.showTextAligned(canvas, alignment, p, x, y, rotation);
}
public void AddBasicPhrase(String phrase, float x, float y) {
AddBasicPhrase(phrase, x, y, 0);
}
public void Close() {
document.close();
if (outputStream != null) {
try {
outputStream.flush();
outputStream.close();
inputStream.close();
} catch (IOException e) {
e.printStackTrace();
}
}
}
}