/**
     * 寫入資訊到圖片檔案
     */
public void writeGpsToImage(String path) {
        ExifInterface exifInterface = null;
        try {
            exifInterface = new ExifInterface(path);
exifInterface.setAttribute(ExifInterface.TAG_DATETIME, "20161227"); //寫入時間
            // 寫入經度資訊
exifInterface.setAttribute(ExifInterface.TAG_GPS_LONGITUDE
 
,
                    this.gpsInfoConvert(jingdu));
exifInterface.setAttribute(ExifInterface.TAG_GPS_LONGITUDE_REF,
lng > 0 ? "E" : "W");
//         寫入緯度資訊
exifInterface.setAttribute(ExifInterface.TAG_GPS_LATITUDE,
gpsInfoConvert(weidu));
exifInterface.setAttribute(ExifInterface.TAG_GPS_LATITUDE_REF
 
,
lat > 0 ? "N" : "S");
//         執行儲存
exifInterface.saveAttributes();
} catch (IOException e) {
            e.printStackTrace();
}
    }
/**
 * 將正常的經緯度資訊轉換成圖片隨需要的格式
 */
private String gpsInfoConvert(double gpsInfo) {
    gpsInfo= Math.abs(gpsInfo);
String dms = Location.convert(gpsInfo, Location.FORMAT_SECONDS
 
);
String[]splits = dms.split(":");
String[]secnds = (splits[2]).split("\\.");
String seconds;
    if (secnds.length == 0) {
        seconds= splits[2];
}else{
        seconds= secnds[0];
}
    return splits[0] + "/1," + splits[1] + "/1," + seconds + "/1";
}