How to get
the Exif info of an image :
Private
string selected imagepath;
if (resultCode == RESULT_OK)
imageName =
String.valueOf(System.currentTimeMillis()) +
".jpg";
Uri selectedImageUri =
data.getData();
selectedImagePath
= getRealPathFromURI(selectedImageUri);
Log.w("Path
of Capture image", "Camera Image Path :"+ selectedImagePath);
Getexifinfo();
}
}
public String getRealPathFromURI(Uri contentUri) {
try {
String[] proj =
{ MediaStore.Images.Media.DATA
};
Cursor cursor =
managedQuery(contentUri, proj, null,
null, null);
int column_index = cursor.getColumnIndexOrThrow(MediaStore.Images.Media.DATA);
cursor.moveToFirst();
return cursor.getString(column_index);
}
catch (Exception e) {
return contentUri.getPath();
}}
private void getexifinfo()
{
try {
ExifInterface
exif = new
ExifInterface(selectedImagePath);
StringBuilder builder
= new StringBuilder();
builder.append("Date &
Time: " + getExifTag(exif,ExifInterface.TAG_DATETIME) + "\n\n");
builder.append("Flash: " +
getExifTag(exif,ExifInterface.TAG_FLASH) + "\n");
builder.append("Focal Length:
" +
getExifTag(exif,ExifInterface.TAG_FOCAL_LENGTH) + "\n\n");
builder.append("GPS
Datestamp: " + getExifTag(exif,ExifInterface.TAG_FLASH) + "\n");
builder.append("GPS Latitude:
" +
getExifTag(exif,ExifInterface.TAG_GPS_LATITUDE) + "\n");
builder.append("GPS Latitude
Ref: " + getExifTag(exif,ExifInterface.TAG_GPS_LATITUDE_REF) + "\n");
builder.append("GPS
Longitude: " + getExifTag(exif,ExifInterface.TAG_GPS_LONGITUDE) + "\n");
builder.append("GPS Longitude
Ref: " + getExifTag(exif,ExifInterface.TAG_GPS_LONGITUDE_REF) + "\n");
builder.append("GPS
Processing Method: " + getExifTag(exif,ExifInterface.TAG_GPS_PROCESSING_METHOD) + "\n");
builder.append("GPS
Timestamp: " + getExifTag(exif,ExifInterface.TAG_GPS_TIMESTAMP) + "\n\n");
builder.append("Image Length:
" +
getExifTag(exif,ExifInterface.TAG_IMAGE_LENGTH) + "\n");
builder.append("Image Width:
" +
getExifTag(exif,ExifInterface.TAG_IMAGE_WIDTH) + "\n\n");
builder.append("Camera Make:
" +
getExifTag(exif,ExifInterface.TAG_MAKE) + "\n");
builder.append("Camera Model:
" +
getExifTag(exif,ExifInterface.TAG_MODEL) + "\n");
builder.append("Camera
Orientation: " + getExifTag(exif,ExifInterface.TAG_ORIENTATION) + "\n");
builder.append("Camera White
Balance: " + getExifTag(exif,ExifInterface.TAG_WHITE_BALANCE) + "\n");
TextView info = (TextView)findViewById(R.id.exifinfo);
info.setText(builder.toString());
(for latitude ,
longitude the values are retrieved as degrees ,minutes, seconds so we convert
to degreee )
Float
Latitude, Longitude;
String
attrLATITUDE = exif.getAttribute(ExifInterface.TAG_GPS_LATITUDE);
//this gives
the latitude in degrees minutes seconds
String attrLATITUDE_REF =
exif.getAttribute(ExifInterface.TAG_GPS_LATITUDE_REF);
String attrLONGITUDE = exif.getAttribute(ExifInterface.TAG_GPS_LONGITUDE);
String attrLONGITUDE_REF =
exif.getAttribute(ExifInterface.TAG_GPS_LONGITUDE_REF);
//convert to degrees
if(attrLATITUDE_REF.equals("N")){
Latitude = convertToDegree(attrLATITUDE);
}
else{
Latitude = 0 -
convertToDegree(attrLATITUDE);
}
if(attrLONGITUDE_REF.equals("E")){
Longitude = convertToDegree(attrLONGITUDE);
}
else{
Longitude = 0 -
convertToDegree(attrLONGITUDE);
}
Toast.makeText(getApplicationContext(),latitude+longitude+ Toast.LENGTH_LONG).show();
}
catch (IOException e) {
//
TODO Auto-generated catch block
e.printStackTrace();
}
}
private Float convertToDegree(String
stringDMS){
Float result = null;
String[] DMS = stringDMS.split(",",
3);
String[] stringD = DMS[0].split("/",
2);
Double D0 = new Double(stringD[0]);
Double D1 = new Double(stringD[1]);
Double FloatD = D0/D1;
String[] stringM = DMS[1].split("/",
2);
Double M0 = new Double(stringM[0]);
Double M1 = new Double(stringM[1]);
Double FloatM = M0/M1;
String[] stringS = DMS[2].split("/",
2);
Double S0 = new Double(stringS[0]);
Double S1 = new Double(stringS[1]);
Double FloatS = S0/S1;
result = new Float(FloatD + (FloatM/60) + (FloatS/3600));
return
result;
};
