Question

我想从列表视图项的片段开始服务。我试图用以下方式呼叫服务：

startService(new Intent(getActivity(),myPlayService.class));

但它根本不起作用。我如何从片段中调用我的服务？还有其他方法可以开始服务吗？

Answer 1

替换

startService(new Intent(getActivity(),myPlayService.class));

与

getActivity().startService(new Intent(getActivity(),myPlayService.class));

Answer 2

从片段使用启动服务

Java

public bool Start()
{
    if (!Running)
    {
        Handle = IntPtr.Zero;

        var readyEvent = new ManualResetEventSlim();

        // Launch the message loop thread
        taskFactory.StartNew(() =>
        {
            var processHandle = Process.GetCurrentProcess().Handle;

            var windowClass = new WndClassEx
            {
                lpszMenuName = null,
                hInstance = processHandle,
                cbSize = WndClassEx.Size,
                lpfnWndProc = WndProc,
                lpszClassName = Guid.NewGuid().ToString()
            };

            // Register the dummy window class
            var classAtom = RegisterClassEx(ref windowClass);

            // Check whether the class was registered successfully
            if (classAtom != 0u)
            {
                // Create the dummy window
                Handle = CreateWindowEx(0x08000000, classAtom, "", 0, -1, -1, -1, -1, IntPtr.Zero, IntPtr.Zero, processHandle, IntPtr.Zero);
                Running = Handle != IntPtr.Zero; 
            }

            readyEvent.Set();

            if (Handle != IntPtr.Zero)
            {
                Message message;

                while (GetMessage(out message, IntPtr.Zero, 0, 0) != 0)
                {
                    TranslateMessage(ref message);
                    DispatchMessage(ref message);
                }

                // if the message queue received WM_QUIT other than
                // from the window being destroyed, for instance by
                // a corresponding Stop() method posting WM_QUIT
                // to the window, then destroy the window now...
                if (IsWindow(Handle))
                {
                    DestroyWindow(Handle);
                }

                Handle = IntPtr.Zero;
            }
        });

        readyEvent.Wait();
    }

    return Running;
}

科特林

requireActivity().startService(new Intent(getContext(), ServiceName.class));

如何从片段开始服务

2 个答案: