NFC开关
- 权限：android.permission.WRITE_SECURE_SETTINGS
- 接口：android.nfc.NfcAdapter.enable()
权限
Manifest.permission | Android Developers
http://androidxref.com/8.0.0_r4/xref/frameworks/base/core/res/AndroidManifest.xml
接口
http://androidxref.com/8.0.0_r4/xref/frameworks/base/core/java/android/nfc/NfcAdapter.java
……
