图像捕获，保存文件... Android / Parse

休言女子非英物，夜夜龙泉壁上鸣。这篇文章主要讲述图像捕获，保存文件... Android / Parse相关的知识，希望能为你提供帮助。
我试图在android应用程序中将从移动设备捕获的图像文件保存到Parse。我正在使用最终的File mediaFile。我想我的问题是，我知道我需要将文件转换为字节数组...我已经尝试了各种方法来做到这一点。我可以在预览中看到图像...但我似乎无法将其保存到Parse。
谢谢你的帮助。

public Uri getOutputMediaFileUri(int type) { return Uri.fromFile(getOutputMediaFile(type)); }/** * returning image / video */ 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 byte[] data2; FileInputStream fis = new FileInputStream(mediaFile); FileChannel fc = fis.getChannel(); int sz = (int)fc.size(); MappedByteBuffer bb = fc.map(FileChannel.MapMode.READ_ONLY, 0, sz); data2 = new byte[bb.remaining()]; bb.get(data2); // Save the image to Parse photoFile = new ParseFile("profile_photo.jpg", data2); photoFile.saveInBackground(); mCurrentUser.getCurrentUser(); mCurrentUser.put("ProfilePhoto", photoFile); mCurrentUser.saveInBackground(); System.out.println("Done"); }catch(Exception e) { e.printStackTrace(); }return mediaFile; }}

答案我试过这个，它的工作对我来说......！

currentUser = ParseUser.getCurrentUser(); ByteArrayOutputStream stream = new ByteArrayOutputStream(); // Compress image to lower quality scale 1 - 100 //here bitmap is your selected photo's bitmap bitmapProfilePic.compress(Bitmap.CompressFormat.PNG, 100, stream); byte[] image = stream.toByteArray(); final ParseFile file = new ParseFile("Profile.png", image); file.saveInBackground(new SaveCallback() { @Override public void done(ParseException e) { if (e == null) {currentUser.put("ProfilePhoto", file); currentUser.saveInBackground(new SaveCallback() { @Override public void done(ParseException e) { if (e == null) { Toast.makeText(context, "Updated..!!", Toast.LENGTH_LONG).show(); } } }); Toast.makeText(context, "Picture Updated..!!", Toast.LENGTH_LONG).show(); } else { Toast.makeText(context, "Error to " + e.getMessage(), Toast.LENGTH_LONG).show(); } } });

在你的情况下，你已经在data2中的字节数据，所以，...

final ParseFile file = new ParseFile("YourPhotoName.jpg", data2); file.saveInBackground(new SaveCallback() { @Override public void done(ParseException e) { if (e == null) {currentUser.put("ProfilePhoto", file); currentUser.saveInBackground(new SaveCallback() { @Override public void done(ParseException e) { if (e == null) { Toast.makeText(context, "Updated..!!", Toast.LENGTH_LONG).show(); } } }); Toast.makeText(context, "Picture Updated..!!", Toast.LENGTH_LONG).show(); } else { Toast.makeText(context, "Error to " + e.getMessage(), Toast.LENGTH_LONG).show(); } } });

另一答案您可以尝试压缩成JPEG格式，因为JPEG压缩会导致图像尺寸比PNG图像尺寸小。
【图像捕获，保存文件... Android / Parse】试试这段代码：