oke i found the solution the
public void savestring(Integer w, String param) {
//String Filenm= "/storage/sdcard0/my_csv_file.csv";
String Filenm= "/storage/emulated/0/DCIM/Track.csv";
try{
com.codename1.io.File f=new
com.codename1.io.File( Filenm );
if ( w==1) {
if(f.exists()){
f.delete();
f.createNewFile();
} else {
f.createNewFile();
} }
FileWriter fw = new FileWriter( Filenm,true); //the true will append
the new data
fw.write(param + "\n");//appends the string to the file
fw.close(); }
catch (Exception e) {
android.util.Log.d("failed to save file", e.toString());
}
}
Op wo 21 okt. 2020 om 20:42 schreef [email protected] <
[email protected]>:
> there was a mistake in the code, but still the string isn't appended.
>
> public void savestring(Integer w, String param) {
>
> //String Filenm= "/storage/sdcard0/my_csv_file.csv";
> String Filenm= "/storage/emulated/0/DCIM/Track.csv";
>
> try{
>
>
> com.codename1.io.File f=new
> com.codename1.io.File( Filenm );
> if ( w==1) {
> if(f.exists()){
> f.delete();
> f.createNewFile();
> } else {
> f.createNewFile();
>
> } }
>
>
>
> boolean append = true;
> FileOutputStream fOut = new FileOutputStream(Filenm, append );
> OutputStreamWriter osw = new OutputStreamWriter(fOut);
>
> osw.write(param);
> osw.flush();
> osw.close(); }
> catch (Exception e) {
> android.util.Log.d("failed to save file", e.toString());
> }
>
> }
>
> Op woensdag 21 oktober 2020 om 19:22:03 UTC+2 schreef [email protected]
> :
>
>> Hi
>> I like to add a string to an existing file in the DCIM folder. The file
>> with the first line is correctly made, but the next lines not.
>>
>> Here is the code
>>
>> native
>> mport java.io.File;
>> import java.io.FileInputStream;
>> import java.io.FileOutputStream;
>> import java.io.FileWriter;
>> import java.io.IOException;
>> import java.io.InputStream;
>> import java.io.OutputStreamWriter;
>> import java.text.ParseException;
>> import android.content.Context;
>>
>>
>> public class SaveposImpl {
>> public void savestring(Integer w, String param) {
>>
>> //String Filenm= "/storage/sdcard0/my_csv_file.csv";
>> String Filenm= "/storage/emulated/0/DCIM/Track.csv";
>>
>> try{
>> com.codename1.io.File f=new
>> com.codename1.io.File( Filenm );
>> if ( w==1) {
>> if(f.exists()){
>> f.delete();
>> f.createNewFile();
>> } else {
>> f.createNewFile();
>>
>> }
>>
>>
>>
>> boolean append = true;
>> FileOutputStream fOut = new FileOutputStream(Filenm, append );
>> OutputStreamWriter osw = new OutputStreamWriter(fOut);
>>
>> osw.write(param);
>> osw.flush();
>> osw.close(); } }
>> catch (Exception e) {
>> android.util.Log.d("failed to save file", e.toString());
>> }
>>
>> }
>>
>>
>> import com.codename1.system.NativeInterface;
>>
>> /**
>> *
>> * @author Administrator
>> */
>>
>> public interface Savepos extends NativeInterface {
>> public void savestring(Integer w, String param);
>> }
>>
>>
>>
>>
>> in the application
>>
>> String param = w + ","+ Latp + ","+ Lonp + "," + TOGl + "," + speed +
>> "," + acc;
>>
>> Display.getInstance().invokeAndBlock(new
>> Runnable() {
>> public void run() {
>> savepos1.savestring( w,param);
>> }
>> });
>>
>>
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