How to upload image to Parse in android?

问题:

I have been able to take a picture using a camera or take from a gallery and show it in an ImageView using this code. What I need to do now is to use that picture and upload it to Parse. I have been googling here and there to do this, and I haven't found the right way to do it. Can someone please help me with this? Is it possible to upload the image from the ImageView? Thank you.

protected Button mFromCamera;
protected Button mFromGallery;
protected ImageView mImageView;

private static final int CAMERA_REQUEST = 1888;
private static final int SELECT_PHOTO = 100;

@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);


//Initialize ImageView
mImageView = (ImageView) findViewById(R.id.ImgPrev);
//Initialize Camera
mFromCamera = (Button) findViewById(R.id.FromCamera);

//use camera
mFromCamera.setOnClickListener(new View.OnClickListener() {
    @Override
    public void onClick(View v) {
        Intent cameraIntent = new Intent(android.provider.MediaStore.ACTION_IMAGE_CAPTURE);
        startActivityForResult(cameraIntent, CAMERA_REQUEST);
    } //use camera end

});

//initialize button
mFromGallery = (Button) findViewById(R.id.FromGallery);

//pick a photo
mFromGallery.setOnClickListener(new View.OnClickListener() {
    @Override
    public void onClick(View arg0) {
        Intent photoPickerIntent = new Intent(Intent.ACTION_PICK, android.provider.MediaStore.Images.Media.EXTERNAL_CONTENT_URI);
        photoPickerIntent.setType("image/*");
        startActivityForResult(photoPickerIntent, SELECT_PHOTO);
    }
});//pick a photo end
}



//previewing Image
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
switch (requestCode) {
    //from the gallery
    case SELECT_PHOTO:
        if (requestCode == SELECT_PHOTO && resultCode == RESULT_OK && null!= data) {
            Uri selectedImage = data.getData();
            String[] filePathColumn = { MediaStore.Images.Media.DATA };

            Cursor cursor = getContentResolver().query(selectedImage,
                    filePathColumn, null, null, null);
            cursor.moveToFirst();

            int columnIndex = cursor.getColumnIndex(filePathColumn[0]);
            String picturePath = cursor.getString(columnIndex);
            cursor.close();

            mImageView.setImageBitmap(BitmapFactory.decodeFile(picturePath));
        }
        break;
    //from the camera
    case CAMERA_REQUEST:
        if (requestCode == CAMERA_REQUEST && resultCode == RESULT_OK) {
            Bitmap photo = (Bitmap) data.getExtras().get("data");
            mImageView.setImageBitmap(photo);
        }
        break;
}
}//Preview Image End

回答1:

reading your answer :

I already followed the code that you have before. I was able to upload the image to parse. but I dont know how to switch the drawable source to be my image from camera/gallery or imageview. – stanley santoso

to :

Abhishek Bansal

I understand that your problem is not parsing your image ?

To try to answer your question :

I dont know how to switch the drawable source to be my image from camera/gallery or imageview.

1 - R.drawable.androidbegin seems to be your problem BUT the fact is that you already have your bitmap to parse in your code :

from gallery ->

mImageView.setImageBitmap(BitmapFactory.decodeFile(picturePath));

from camera ->

Bitmap photo = (Bitmap) data.getExtras().get("data");

2 - So I would suggest to declare a variable of type Bitmap at the beginning of your code

private Bitmap yourbitmap;

3 - then assign the bitmap for the gallery and the camera in your code and use it to parse it.

...
yourbitmap = BitmapFactory.decodeFile(picturePath);
...
yourbitmap = (Bitmap) data.getExtras().get("data");
...

4 - finally you can use your bitmap like so :

//    Bitmap bitmap = BitmapFactory.decodeResource(getResources(),
//                            R.drawable.androidbegin);
    // Convert it to byte
                    ByteArrayOutputStream stream = new ByteArrayOutputStream();
                    // Compress image to lower quality scale 1 - 100
                    yourbitmap.compress(Bitmap.CompressFormat.PNG, 100, stream);
                    byte[] image = stream.toByteArray();
           ...

回答2:

there are good tutorials available on internet. Essentially following is what you need to do

Bitmap bitmap = BitmapFactory.decodeResource(getResources(),
                        R.drawable.androidbegin);
                // Convert it to byte
                ByteArrayOutputStream stream = new ByteArrayOutputStream();
                // Compress image to lower quality scale 1 - 100
                bitmap.compress(Bitmap.CompressFormat.PNG, 100, stream);
                byte[] image = stream.toByteArray();

                // Create the ParseFile
                ParseFile file = new ParseFile("androidbegin.png", image);
                // Upload the image into Parse Cloud
                file.saveInBackground();

                // Create a New Class called "ImageUpload" in Parse
                ParseObject imgupload = new ParseObject("ImageUpload");

                // Create a column named "ImageName" and set the string
                imgupload.put("ImageName", "AndroidBegin Logo");

                // Create a column named "ImageFile" and insert the image
                imgupload.put("ImageFile", file);

                // Create the class and the columns
                imgupload.saveInBackground();

source: this tutorial

also see this question How to upload an image in parse server using parse api in android

回答3:

Click here to get AsyncHttpClient library and upload your image. it is fats to upload your image.

public void uploadImage(Bitmap img_bit)
{
    AsyncHttpClient imgupload = new AsyncHttpClient();
    RequestParams params = new RequestParams();
        if (img_bit != null) {

            byte[] imagebyte;
            ByteArrayOutputStream bao = new ByteArrayOutputStream();
            img_bit.compress(Bitmap.CompressFormat.PNG, 100, bao);
            imagebyte = bao.toByteArray();
            params.put("image", new ByteArrayInputStream(imagebyte),   "test"+ System.currentTimeMillis() + ".png");
        }
        imgupload.post("url",params, new AsyncHttpResponseHandler() {

                            @Override
                            public void onSuccess(int arg0, Header[] arg1,
                                    byte[] arg2) {
                                System.out.println("Image Upload successfully");
                            }

                            @Override
                            public void onFailure(int arg0, Header[] arg1,
                                    byte[] arg2, Throwable arg3) {
                                System.out.println("faile the data");
                            }
                        });


     }