android - ANR 向可穿戴设备发送大文件

Question

考虑到有关使用ChannelClient类将文件从手机发送到可穿戴设备的最少文档，我已经让它工作了。但是，我在发送较大的文件时收到 ANR 错误。我正在使用 aForeground Service来处理我认为用于长时间运行任务的上传。奇怪的是，ANR 发生在Activity用户选择要上传的文件的地方。

服务

public class UploadFile extends Service {

    @Override
    public int onStartCommand(Intent intent, int flags, int startId) {
        createForegroundNotification();
        
        Uri fileUri = Uri.parse(intent.getExtras().getString("file"));
        String fileName = getFileName(fileUri);

        List<Node> nodes = Utilities.getNodesAsync();

        for (Node node : nodes) {
          ChannelClient channelClient = Wearable.getChannelClient(context);

                channelClient.openChannel(node.getId(), fileName).addOnSuccessListener(channel -> {

                Task<OutputStream> outputStreamTask = channelClient.getOutputStream(channel);

                outputStreamTask.addOnSuccessListener(outputStream -> {

                    try {
                        InputStream inputStream = context.getContentResolver().openInputStream(fileUri);
                        ByteArrayOutputStream byteBuffer = new ByteArrayOutputStream();

                        byte[] buffer = new byte[1024];

                        int len;
                        while ((len = inputStream.read(buffer)) > 0)
                            byteBuffer.write(buffer, 0, len);

                        outputStream.write(byteBuffer.toByteArray());
                        outputStream.flush();
                        outputStream.close();
                        inputStream.close();
                    } catch (Exception e) {
                        e.printStackTrace();
                    } finally {
                        stopForeground(true);
                    }

                });
            });
        }   
    }
}

用户添加活动：

mFileUploadButton.setOnClickListener(view -> mFileUpload.launch("*/*"));


final ActivityResultLauncher<String> mFileUpload = registerForActivityResult(new ActivityResultContracts.GetContent(),
    uri -> {

        final Intent serviceIntent = new Intent(this, UploadFile.class);
        final Bundle extrasService = new Bundle();
        extrasService.putString("file", uri.toString());
        serviceIntent.putExtras(extrasService);

        ContextCompat.startForegroundService(this, serviceIntent);

    });

错误：

2021-07-26 09:26:56.391 1558-13178/? E/ActivityManager: ANR in com.my.app (com.my.app/.Activities.UserAddActivity)
PID: 13090
Reason: Input dispatching timed out (1c8d463 com.my.app/com.my.app.Activities.UserAddActivity (server) is not responding. Waited 5003ms for FocusEvent(hasFocus=false))
Parent: com.my.app/.Activities.UserAddActivity

ANR 仅发生在大文件上。我正在测试的是63MB。奇怪的是文件确实传输到了​​可穿戴设备，但手机在完成之前就抛出了 ANR。

我什至尝试将代码放入Service.

标签： androidwear-osandroid-wear-data-api