连接蓝牙后会报 @OverRide
public void onRequestFailed(@nonnull Request request, int failType, int gattStatus, @nullable Object value) {
if (gattStatus != -1) {
switch(gattStatus) {
case BluetoothGatt.GATT_REQUEST_NOT_SUPPORTED:
ToastUtils.showShort("请求不支持");
break;
default:
break;
}
}
}