Android NFC:启用和禁用NFC检测到的声音 [英] Android NFC: enable and disable the NFC detected sounds

问题描述

我正在处理NFC标签.我的问题是，当检测到NFC标签时，我无法关闭声音.我开始研究，也开始感到困惑:

I am dealing with NFC tags. My problem is that I cannot turn off the sound when NFC tags are detected. I started my research and also started getting confused:

• 关闭设备的NFC声音
• 在扫描/识别NFC意图时防止提示音
• 如何禁用/更改NFC声音?

• Turn off device's NFC sound
• Prevent alert tone when scanning / identifying an NFC intent
• How do I disable/change the NFC sounds?

有人说我们可以，有些人不能禁用那些声音.

Some say that we can and some that we can't disable those sounds.

我们可以通过编程方式禁用和启用NFC声音吗?

Can we disable and enable the NFC sound programmatically?

推荐答案

从API级别19(Android 4.4)开始，您可以使用较新的阅读器模式API来在应用程序处于前台时禁用NFC声音. NFC标签.读取器模式API具有标志FLAG_READER_NO_PLATFORM_SOUNDS，可用于禁用NFC发现声音.

Starting with API level 19 (Android 4.4) you can disable the NFC sounds while your app is in the foreground by using the newer reader-mode API to listen for NFC tags. The reader-mode API has a flag FLAG_READER_NO_PLATFORM_SOUNDS that can be used to disable the NFC discovery sounds.

@Override
protected void onResume() {
    super.onResume();

    NfcAdapter adapter = NfcAdapter.getDefaultAdapter(this);
    adapter.enableReaderMode(this,
            new NfcAdapter.ReaderCallback() {
                @Override
                public void onTagDiscovered(final Tag tag) {
                    // do something
                }
            },
            NfcAdapter.FLAG_READER_NFC_A |
            NfcAdapter.FLAG_READER_NFC_B |
            NfcAdapter.FLAG_READER_NFC_F |
            NfcAdapter.FLAG_READER_NFC_V |
            NfcAdapter.FLAG_READER_NFC_BARCODE |
            NfcAdapter.FLAG_READER_NO_PLATFORM_SOUNDS,
            null);
}

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