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

……