小程序开发报错:offOnBluetoothAdapterStateChange should accept a function instead of object 是什么原因
时间: 2024-03-19 17:45:08 浏览: 122
这个错误提示可能是由于在小程序中使用了错误的 API 或参数导致的。通常情况下,`offOnBluetoothAdapterStateChange` API 应该接受一个函数作为参数,而不是一个对象。
请确保你在调用 `offOnBluetoothAdapterStateChange` API 时传递了一个函数作为参数,例如:
```javascript
wx.onBluetoothAdapterStateChange(function(res) {
console.log(`Bluetooth adapter state changed: ${res.available}, device is ${res.discovering ? 'discovering' : 'not discovering'}`)
})
```
如果你仍然遇到问题,请提供更多上下文信息和代码示例,以便更好地理解和解决问题。
相关问题
还是提示“onOnBluetoothAdapterStateChange should accept a function instead of object”,请再修改
好的,我来修改提示。请将你的代码中的下面这行:
```
bluetoothAdapterStateChangeListeners.push({onStateChanged})
```
修改为:
```
bluetoothAdapterStateChangeListeners.push({onStateChanged: onStateChanged})
```
这样,就将 `onStateChanged` 函数作为一个对象的属性传递给了数组 `bluetoothAdapterStateChangeListeners`。
小程序代码: “ openAndListenBluetoothAdapter() { // 未初始化蓝牙适配器,打开蓝牙适配器 if (!this.isInitializedAdapter) { // // 监听蓝牙适配器状态 _.api('onBluetoothAdapterStateChange', 'onBluetoothAdapterStateChange') .then(__ => __) .catch(__ => __); _.on('onBluetoothAdapterStateChange', 'onBluetoothAdapterStateChange', res => { this.bm.log('onBluetoothAdapterStateChange', res); if (res.available && !this.isAvailableAdapter) { this.isAvailableAdapter = true; this.callBackConnectStatus(SuccessCallbackEvent.Success_ConnectStatus_CB_PowerOn); } else if (!res.available) { this.isAvailableAdapter = false; // 支付宝小程序当蓝牙适配器关闭,再次进行蓝牙操作需要重新打开,微信只需要打开一次就行 _.getAppPlatform() === 'ant' && (this.isInitializedAdapter = false); this.bm.connectStatus = ConnectStatus.disconnected; this.callBackConnectStatus(ErrorCallbackEvent.Error_ConnectStatus_CB_PowerOff); } }); // 先关闭再打开蓝牙适配器,避免出现某些机型打开无效的情况 return _.api('closeBluetoothAdapter') .then(__ => { // 打开蓝牙适配器 return _.api('openBluetoothAdapter') }).then(res => { this.bm.log('openBluetoothAdapter success', res); this.isInitializedAdapter = true; this.isAvailableAdapter = true; return Promise.resolve(); }).catch(e => { this.bm.log('openBluetoothAdapter fail', e); this.isInitializedAdapter = false; this.isAvailableAdapter = false; this.bm.connectStatus = ConnectStatus.disconnected; return Promise.reject(e); }) } else { return Promise.resolve(); } } ” 。提示错误“onOnBluetoothAdapterStateChange should accept a function instead of object” ,请修改
把代码中的:
```
_.api('onBluetoothAdapterStateChange', 'onBluetoothAdapterStateChange')
.then(__ => __)
.catch(__ => __);
```
修改为:
```
_.api('onBluetoothAdapterStateChange', res => {
this.bm.log('onBluetoothAdapterStateChange', res);
if (res.available && !this.isAvailableAdapter) {
this.isAvailableAdapter = true;
this.callBackConnectStatus(SuccessCallbackEvent.Success_ConnectStatus_CB_PowerOn);
} else if (!res.available) {
this.isAvailableAdapter = false;
_.getAppPlatform() === 'ant' && (this.isInitializedAdapter = false);
this.bm.connectStatus = ConnectStatus.disconnected;
this.callBackConnectStatus(ErrorCallbackEvent.Error_ConnectStatus_CB_PowerOff);
}
});
```
这是因为在调用 `_.api('onBluetoothAdapterStateChange', 'onBluetoothAdapterStateChange')` 方法时,第二个参数应该是一个函数而不是一个字符串。修改后,将在函数内部处理蓝牙适配器状态的变化。
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