如何接收标记的意图 FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT

Question

在 Android 5.0 之后，HidService.java 包括以下功能：

private void broadcastReport(BluetoothDevice device, byte[] report, int rpt_size) {
    Intent intent = new Intent(BluetoothInputDevice.ACTION_REPORT);
    intent.putExtra(BluetoothDevice.EXTRA_DEVICE, device);
    intent.putExtra(BluetoothInputDevice.EXTRA_REPORT, report);
    intent.putExtra(BluetoothInputDevice.EXTRA_REPORT_BUFFER_SIZE, rpt_size);
    intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT);
    sendBroadcast(intent, BLUETOOTH_PERM);
}

我在 Intent 中找不到关于此标志的任何文档。我应该如何在我的应用程序中接收此广播意图？

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编辑的内容删除并形成新问题here

Answer 1

此常量未记录在 Intent API docs 中，因为它不适合 public 使用。

这是我从 the android source code 中找到的描述。（第 3018 行）

FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT

public static final int FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT

If set, when sending a broadcast before boot has completed only registered receivers will be called -- no BroadcastReceiver components will be launched. Sticky intent state will be recorded properly even if no receivers wind up being called. If FLAG_RECEIVER_REGISTERED_ONLY is specified in the broadcast intent, this flag is unnecessary.

This flag is only for use by system sevices as a convenience to avoid having to implement a more complex mechanism around detection of boot completion.

强调我的。

如何接收标记的意图 FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT

How to receive intents flagged FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT

android

android-intent

service

hid