Question

我使用以下示例发送一封简单的电子邮件。

https://docs.microsoft.com/en-us/xamarin/essentials/email?tabs=android

当我第一次运行xamarin表单应用程序并调用发送的方法时，出现了用于选择的应用程序弹出窗口。

我选择了Viber进行测试，什么都没发生，但是现在我无法撤消此选择。每次我打电话给发送邮件时，viber都会打开。

我尝试从设置中清除应用程序数据，然后再次取消安装该应用程序，但是我遇到了同样的问题。

我该如何解决？我可以仅使用电子邮件客户端打开一个对话框吗？

谢谢!!

Answer 1

我替换了Xamarin.Essential电子邮件实施

private void takePictureAndUpload() {
        Intent takePictureIntent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
        if (takePictureIntent.resolveActivity(getPackageManager()) != null) {
            // Create the File where the photo should go
            File photoFile = null;
            try {
                photoFile = createImageFile();
            } catch (IOException ex) {
                // Error occurred while creating the File
            }
            // Continue only if the File was successfully created
            if (photoFile != null) {
                photoURI = FileProvider.getUriForFile(this,
                        "com.example.android.provider",
                        photoFile);
                takePictureIntent.putExtra(MediaStore.EXTRA_OUTPUT, photoURI);
                startActivityForResult(takePictureIntent, REQUEST_IMAGE_CAPTURE);
            }
        }


    }

    protected void onActivityResult(int requestCode, int resultCode, final Intent data){
        super.onActivityResult(requestCode, resultCode, data);
        if ((requestCode == REQUEST_IMAGE_CAPTURE) && (resultCode == Activity.RESULT_OK)){
            count++;
            Bitmap imageBitmap = null;
            try {
                imageBitmap = MediaStore.Images.Media.getBitmap(this.getContentResolver(),photoURI);
            } catch (IOException e) {
                e.printStackTrace();
            }
            ByteArrayOutputStream stream = new ByteArrayOutputStream();
            imageBitmap.compress(Bitmap.CompressFormat.JPEG, 100, stream);
            final byte[] imageData = stream.toByteArray();

            setuId(user);
            final String path = "posts/" + UUID.randomUUID() + ".jpg";

            FirebaseStorage storage = FirebaseStorage.getInstance();
            final StorageReference storageRef = storage.getReference();
            final StorageReference imageRef = storageRef.child(path);

            UploadTask uploadTask = imageRef.putBytes(imageData);
            uploadTask.addOnFailureListener(new OnFailureListener() {
                @Override
                public void onFailure(@NonNull Exception e) {
                    String ex = e.getLocalizedMessage();
                }
            }).addOnSuccessListener(new OnSuccessListener<UploadTask.TaskSnapshot>() {
                @Override
                public void onSuccess(UploadTask.TaskSnapshot taskSnapshot) {
                    imageRef.getDownloadUrl().addOnSuccessListener(new OnSuccessListener<Uri>()
                    {
                        @Override
                        public void onSuccess(Uri downloadUrl)
                        {
                            final String url = downloadUrl.toString();//do something with downloadurl
                             addPhotoUrlToDatabase(post.getImageUrl_1(), post.getImageUrl_2(), path);
                        }
                    });
                }
            });
        }
    }

与

var message = new EmailMessage
{
                Subject = subject,
                Body = body,
                To = recipients
};
await Email.ComposeAsync(message);

现在对话框中只有可用的邮件客户端。

发送电子邮件与Xamarin Essential

1 个答案: