// Signature format: 2.0
package android.nfc {

  public final class NfcAdapter {
    method @RequiresPermission(android.Manifest.permission.WRITE_SECURE_SETTINGS) public boolean addNfcUnlockHandler(android.nfc.NfcAdapter.NfcUnlockHandler, String[]);
    method @RequiresPermission(android.Manifest.permission.WRITE_SECURE_SETTINGS) public boolean disable();
    method @RequiresPermission(android.Manifest.permission.WRITE_SECURE_SETTINGS) public boolean disable(boolean);
    method @RequiresPermission(android.Manifest.permission.WRITE_SECURE_SETTINGS) public boolean enable();
    method @RequiresPermission(android.Manifest.permission.WRITE_SECURE_SETTINGS) public boolean enableSecureNfc(boolean);
    method @NonNull @RequiresPermission(android.Manifest.permission.WRITE_SECURE_SETTINGS) public java.util.Map<java.lang.String,java.lang.Boolean> getTagIntentAppPreferenceForUser(int);
    method @RequiresPermission(android.Manifest.permission.NFC_SET_CONTROLLER_ALWAYS_ON) public boolean isControllerAlwaysOn();
    method @RequiresPermission(android.Manifest.permission.NFC_SET_CONTROLLER_ALWAYS_ON) public boolean isControllerAlwaysOnSupported();
    method @RequiresPermission(android.Manifest.permission.WRITE_SECURE_SETTINGS) public boolean isTagIntentAppPreferenceSupported();
    method @RequiresPermission(android.Manifest.permission.NFC_SET_CONTROLLER_ALWAYS_ON) public void registerControllerAlwaysOnListener(@NonNull java.util.concurrent.Executor, @NonNull android.nfc.NfcAdapter.ControllerAlwaysOnListener);
    method @RequiresPermission(android.Manifest.permission.WRITE_SECURE_SETTINGS) public boolean removeNfcUnlockHandler(android.nfc.NfcAdapter.NfcUnlockHandler);
    method @RequiresPermission(android.Manifest.permission.NFC_SET_CONTROLLER_ALWAYS_ON) public boolean setControllerAlwaysOn(boolean);
    method @RequiresPermission(android.Manifest.permission.WRITE_SECURE_SETTINGS) public int setTagIntentAppPreferenceForUser(int, @NonNull String, boolean);
    method @RequiresPermission(android.Manifest.permission.NFC_SET_CONTROLLER_ALWAYS_ON) public void unregisterControllerAlwaysOnListener(@NonNull android.nfc.NfcAdapter.ControllerAlwaysOnListener);
    field public static final int TAG_INTENT_APP_PREF_RESULT_PACKAGE_NOT_FOUND = -1; // 0xffffffff
    field public static final int TAG_INTENT_APP_PREF_RESULT_SUCCESS = 0; // 0x0
    field public static final int TAG_INTENT_APP_PREF_RESULT_UNAVAILABLE = -2; // 0xfffffffe
  }

  public static interface NfcAdapter.ControllerAlwaysOnListener {
    method public void onControllerAlwaysOnChanged(boolean);
  }

  public static interface NfcAdapter.NfcUnlockHandler {
    method public boolean onUnlockAttempted(android.nfc.Tag);
  }

}