使用getBytes()保存ParseFile,Android
我试图使用此引用: 了解如何获取相机拍摄的文件并将其保存以进行解析。我有以下代码:使用getBytes()保存ParseFile,Android,android,parse-platform,Android,Parse Platform,我试图使用此引用: 了解如何获取相机拍摄的文件并将其保存以进行解析。我有以下代码: private File getOutputMediaFile(int type) { // External sdcard location String appName = CameraActivity.this.getString(R.string.app_name); File mediaStorageDir = new File
private File getOutputMediaFile(int type) {
// External sdcard location
String appName = CameraActivity.this.getString(R.string.app_name);
File mediaStorageDir = new File(
Environment
.getExternalStoragePublicDirectory(Environment.DIRECTORY_PICTURES),
appName);
// Create the storage directory if it does not exist
if (!mediaStorageDir.exists()) {
if (!mediaStorageDir.mkdirs()) {
Log.d(appName, "Oops! Failed create "
+ appName + " directory");
return null;
}
}
// Create a media file name
String timeStamp = new SimpleDateFormat("yyyyMMdd_HHmmss",
Locale.getDefault()).format(new Date());
final File mediaFile;
if (type == MEDIA_TYPE_IMAGE) {
mediaFile = new File(mediaStorageDir.getPath() + File.separator
+ "IMG_" + timeStamp + ".jpg");
} else {
return null;
}
final ParseFile photoFile;
byte[] data = mediaFile.getBytes();
// Save the scaled image to Parse
photoFile = new ParseFile("profile_photo.jpg", data);
但我得到了一个错误:无法解析getBytes
在使用getBytes之前,是否需要将此文件转换为其他文件?它的格式是否错误?文件没有方法getBytes(),您需要将其转换为字节数组,这里如何回答:这是我的解决方案,基于此::
私有文件getOutputMediaFile(int类型){
//外部SD卡位置
String appName=CameraActivity.this.getString(R.String.app\u name);
File mediaStorageDir=新文件(
环境
.getExternalStoragePublicDirectory(Environment.DIRECTORY\u图片),
appName);
//如果存储目录不存在,请创建该目录
如果(!mediaStorageDir.exists()){
如果(!mediaStorageDir.mkdirs()){
Log.d(appName,“Oops!创建失败”
+appName+“目录”);
返回null;
}
}
//创建媒体文件名
字符串时间戳=新的SimpleDataFormat(“yyyyMMdd_HHmmss”,
Locale.getDefault()).format(新日期());
最终文件mediaFile;
如果(类型==媒体类型图像){
mediaFile=新文件(mediaStorageDir.getPath()+File.separator
+“IMG_”+时间戳+”.jpg”);
}否则{
返回null;
}
最终文件照片文件;
FileInputStream FileInputStream=null;
byte[]bFile=新字节[(int)mediaFile.length()];
试一试{
//将文件转换为字节数组
fileInputStream=新的fileInputStream(mediaFile);
fileInputStream.read(bFile);
fileInputStream.close();
对于(int i=0;i
张贴日志。可能mediaFile
为空。。。
private File getOutputMediaFile(int type) {
// External sdcard location
String appName = CameraActivity.this.getString(R.string.app_name);
File mediaStorageDir = new File(
Environment
.getExternalStoragePublicDirectory(Environment.DIRECTORY_PICTURES),
appName);
// Create the storage directory if it does not exist
if (!mediaStorageDir.exists()) {
if (!mediaStorageDir.mkdirs()) {
Log.d(appName, "Oops! Failed create "
+ appName + " directory");
return null;
}
}
// Create a media file name
String timeStamp = new SimpleDateFormat("yyyyMMdd_HHmmss",
Locale.getDefault()).format(new Date());
final File mediaFile;
if (type == MEDIA_TYPE_IMAGE) {
mediaFile = new File(mediaStorageDir.getPath() + File.separator
+ "IMG_" + timeStamp + ".jpg");
} else {
return null;
}
final ParseFile photoFile;
FileInputStream fileInputStream=null;
byte[] bFile = new byte[(int) mediaFile.length()];
try {
//convert file into array of bytes
fileInputStream = new FileInputStream(mediaFile);
fileInputStream.read(bFile);
fileInputStream.close();
for (int i = 0; i < bFile.length; i++) {
System.out.print((char)bFile[i]);
}
System.out.println("Done");
}catch(Exception e) {
e.printStackTrace();
}
// Save the image to Parse
photoFile = new ParseFile("profile_photo.jpg", bFile);
photoFile.saveInBackground(new SaveCallback() {
public void done(ParseException e) {
if (e != null) {
} else {
addPhotoToProfile(photoFile);
}
}
});
return mediaFile;
}
private void addPhotoToProfile(ParseFile photoFile) {
mCurrentUser.getCurrentUser();
mCurrentUser.put("ProfilePhoto", photoFile);
}