[android-developers] Re: Saving form data to XML
Hi,
Use File.separator instead of /.
This might be obvious but make sure SD card is not mounted on PC when
running your code & debugging.
Yes Context Provider is 'best' particularly for sharing with other
apps, but involves a lot more work.
Also I would not bother to check if file exits & create it I would
just write to it regardless unless you don't want to overwrite it.
Regards
On Sep 26, 10:35 pm, ksmobilejava wrote:
> To create new xml file on SD card I am using following code
> String strFileName = Environment.getExternalStorageDirectory()+"/" +
> "temp.xml";
> try{
>
> if(!lXmlfile.exists())
> {
>
> lXmlfile.createNewFile();
> }
>
> }catch(IOException e){
>
>
> Log.e("IOException", e.toString());
>
> return null;
> }
> Above code giving me IO exception Permission denied. Although I have
> added permission in AndroidManifest.xml
> like:
> android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>
>
> still , can not create file. where am I going wrong? how can I test
> this on emulator (create file on which path?) .Pls help its urgent.
> One more question: Is user defined content provider is the best way to
> complete this requirement(saving and retrieving form data that also
> contains image). Pls share.
> Regards
>
> On Sep 26, 7:41 am, gjs wrote:
>
>
>
>
>
>
>
> > Hi,
>
> > Seehttp://developer.android.com/reference/android/content/Context.html#g...()
>
> > andhttp://developer.android.com/guide/topics/data/data-storage.html
>
> > Regards
>
> > On Sep 23, 7:28 pm, ksmobilejava wrote:
>
> > > Hello ,
> > > developing application withformhaving multiple fields, at the end
> > > user need to submit the information.
> > > On this event, all thedataneed to be stored inXMLfile.
> > > thusXMLwrite is required. plus when user asks for particular id then
> > > thedatafilled by that id is also to be displayed thusXMLread is
> > > required.(search operation)
> > > Following is the code I tried for generating samplexml.
> > > ///
> > > //
> > > FileOutputStream fileos = null;
> > > try{
> > >
> > > fileos=openFileOutput("newxml.xml",Context.MODE_PRIVATE);
> > > Log.v("info","fileoutput open");
> > > // fileos = new
> > > FileOutputStream(newxmlfile);
> > > }catch(FileNotFoundException e){
> > > Log.e("FileNotFoundException",
> > > "can't create
> > > FileOutputStream");
> > > }
> > > // create a XmlSerializer in order to
> > > writexmldata
> > > XmlSerializer serializer
> > > =Xml.newSerializer();
> > > try {
> > > //we set the FileOutputStream as
> > > output for the
> > > serializer, using UTF-8 encoding
> > >
> > > serializer.setOutput(fileos, "UTF-8");
> > > //Write > > with encoding (if encoding not null)
> > > and standalone flag (if standalone not null)
> > >
> > > serializer.startDocument(null, Boolean.valueOf(true));
> > > //set indentation option
> > >
> > > //serializer.setFeature("http://xmlpull.org/v1/doc/
> > > features.html#indent-output", true);
> > > //start a tag called
> > > "root"
> > > serializer.startTag(null,
> > > "root");
> > > //i indent code just to
> > > have a view similar toxml-tree
> > >
> > > serializer.startTag(null, "child1");
> > >
> > > serializer.endTag(null, "child1");
>
> > >
> > > serializer.startTag(null, "child2");
> > > //set an
> > > attribute called "attribute" with a "value" for
[android-developers] Re: Saving form data to XML
To create new xml file on SD card I am using following code
String strFileName = Environment.getExternalStorageDirectory()+"/" +
"temp.xml";
try{
if(!lXmlfile.exists())
{
lXmlfile.createNewFile();
}
}catch(IOException e){
Log.e("IOException", e.toString());
return
null;
}
Above code giving me IO exception Permission denied. Although I have
added permission in AndroidManifest.xml
like:
still , can not create file. where am I going wrong? how can I test
this on emulator (create file on which path?) .Pls help its urgent.
One more question: Is user defined content provider is the best way to
complete this requirement(saving and retrieving form data that also
contains image). Pls share.
Regards
On Sep 26, 7:41 am, gjs wrote:
> Hi,
>
> Seehttp://developer.android.com/reference/android/content/Context.html#g...()
>
> andhttp://developer.android.com/guide/topics/data/data-storage.html
>
> Regards
>
> On Sep 23, 7:28 pm, ksmobilejava wrote:
>
>
>
>
>
>
>
> > Hello ,
> > developing application withformhaving multiple fields, at the end
> > user need to submit the information.
> > On this event, all thedataneed to be stored inXMLfile.
> > thusXMLwrite is required. plus when user asks for particular id then
> > thedatafilled by that id is also to be displayed thusXMLread is
> > required.(search operation)
> > Following is the code I tried for generating samplexml.
> > ///
> > //
> > FileOutputStream fileos = null;
> > try{
> >
> > fileos=openFileOutput("newxml.xml",Context.MODE_PRIVATE);
> > Log.v("info","fileoutput open");
> > // fileos = new
> > FileOutputStream(newxmlfile);
> > }catch(FileNotFoundException e){
> > Log.e("FileNotFoundException",
> > "can't create
> > FileOutputStream");
> > }
> > // create a XmlSerializer in order to
> > writexmldata
> > XmlSerializer serializer
> > =Xml.newSerializer();
> > try {
> > //we set the FileOutputStream as
> > output for the
> > serializer, using UTF-8 encoding
> >
> > serializer.setOutput(fileos, "UTF-8");
> > //Write > with encoding (if encoding not null)
> > and standalone flag (if standalone not null)
> >
> > serializer.startDocument(null, Boolean.valueOf(true));
> > //set indentation option
> >
> > //serializer.setFeature("http://xmlpull.org/v1/doc/
> > features.html#indent-output", true);
> > //start a tag called "root"
> > serializer.startTag(null,
> > "root");
> > //i indent code just to
> > have a view similar toxml-tree
> >
> > serializer.startTag(null, "child1");
> >
> > serializer.endTag(null, "child1");
>
> >
> > serializer.startTag(null, "child2");
> > //set an attribute
> > called "attribute" with a "value" for
> >
> >
> > serializer.attribute(null, "attribute", "value");
> >
> > serializer.endTag(null, "child2");
>
> >
> > serializer.startTag(null, "child3");
> > //write some text
> > inside
> >
> > serializer.text("some text inside child3");
> >
> > serializer.endTag(null, "child3");
>
> >
[android-developers] Re: Saving form data to XML
Hi,
See
http://developer.android.com/reference/android/content/Context.html#getFilesDir()
and http://developer.android.com/guide/topics/data/data-storage.html
Regards
On Sep 23, 7:28 pm, ksmobilejava wrote:
> Hello ,
> developing application with form having multiple fields, at the end
> user need to submit the information.
> On this event, all the data need to be stored in XML file.
> thus XML write is required. plus when user asks for particular id then
> the data filled by that id is also to be displayed thus XML read is
> required.(search operation)
> Following is the code I tried for generating sample xml.
> ///
> //
> FileOutputStream fileos = null;
> try{
>
> fileos=openFileOutput("newxml.xml",Context.MODE_PRIVATE);
> Log.v("info","fileoutput open");
> // fileos = new
> FileOutputStream(newxmlfile);
> }catch(FileNotFoundException e){
> Log.e("FileNotFoundException", "can't
> create
> FileOutputStream");
> }
> // create a XmlSerializer in order to write
> xml data
> XmlSerializer serializer =
> Xml.newSerializer();
> try {
> //we set the FileOutputStream as
> output for the
> serializer, using UTF-8 encoding
> serializer.setOutput(fileos,
> "UTF-8");
> //Write with encoding (if encoding not null)
> and standalone flag (if standalone not null)
>
> serializer.startDocument(null, Boolean.valueOf(true));
> //set indentation option
>
> //serializer.setFeature("http://xmlpull.org/v1/doc/
> features.html#indent-output", true);
> //start a tag called "root"
> serializer.startTag(null,
> "root");
> //i indent code just to have
> a view similar to xml-tree
>
> serializer.startTag(null, "child1");
>
> serializer.endTag(null, "child1");
>
>
> serializer.startTag(null, "child2");
> //set an attribute
> called "attribute" with a "value" for
>
>
> serializer.attribute(null, "attribute", "value");
>
> serializer.endTag(null, "child2");
>
>
> serializer.startTag(null, "child3");
> //write some text
> inside
> serializer.text("some
> text inside child3");
>
> serializer.endTag(null, "child3");
>
> serializer.endTag(null,
> "root");
> serializer.endDocument();
> //write xml data into the
> FileOutputStream
> serializer.flush();
> //finally we close the file
> stream
> fileos.close();
>
> //TextView tv =
> (TextView)this.findViewById(R.id.result);
> //tv.setText("file has been
> created on SD card");
> Log.v("info","file has been
> created on SD card");
> return true;
> } catch (Exception e) {
> Log.e("Exception","error
> occurred while creating xml file");
> return false;
> }
> ///
> ///
> executed this with actual device but, no new xml file is created.
> where to store this programatically created xml file?
> On emulator if I want to test this application, where the xml file
> will get stored?
> Pls guide me whats going wrong?
> Thanks.
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