Bitcoin 事件

provider 发出的 accountsChanged 事件携带 string[]，chainChanged 事件携带网络标识。账户数组为空，表示本站已无可访问账户。移除监听器时，应传入注册时使用的同一个处理函数。


const provider = window.$onekey?.btc;
if (!provider) throw new Error('OneKey Bitcoin provider is unavailable.');
 
const onAccountsChanged = (accounts) => {
  console.log('Connected accounts:', accounts);
};
const onChainChanged = (networkId) => {
  console.log('Selected network:', networkId);
  // Refresh network-dependent data before preparing another transaction.
};
provider.on('accountsChanged', onAccountsChanged);
provider.on('chainChanged', onChainChanged);
 
// Run during cleanup, for example when a component unmounts.
provider.off('accountsChanged', onAccountsChanged);
provider.off('chainChanged', onChainChanged);