[英]react-electron ipcRenderer in useEffect does not rerender
我正在嘗試制作一個全局可訪問的 object,以便可以更改其值並可以從每個組件中讀取。 我用 static 字段創建了一個類:
export default class Settings {
static first: string;
static second: string;
}
假設我在單獨的文件中有兩個組件:
import Settings from './Settings'
// located in firstComponent file
export default function FirstComponent() {
Settings.First = 'test' <---------------- SET VALUE
return (some html)
}
// located in secondComponent file
export default function SecondComponent() {
let qq = Settings.First <----------------------- ASSUME HERE IS VALUE "TEST"
}
但它不起作用。 如何創建 static 類/字段,這些類/字段可在 C# static 類等所有組件中訪問。 甚至可能嗎?
提前致謝
UPD看起來像 ipcRenderer 中的問題:
export default function SettingsEditor() {
const [state, setState] = React.useState({
ipAddress: Settings.ipAddress,
});
useEffect(() => {
electron.ipcRenderer.once('readSettings', (args) => {
console.log('Filling settings');
console.log(args); <------ HERE WE HAVE VALUE like 10.10.10.10
setState({ ...state, ipAddress: args.ipAddress});
console.log(state.ipAddress); <------ UNDEFINED
state.ipAddress = args.ipAddress;
console.log(state.ipAddress); <------ UNDEFINED
Settings.ipAddress= args.ipAddress;
console.log(Settings.gateIpAddress); <------ UNDEFINED
});
electron.settingsApi.read();
}, []);
我該如何處理?
原因是-我很愚蠢=)
當我保存設置時,我這樣做了:
const settings = new Settings();
settings.ipAddress= state.ipAddress;
console.log(JSON.stringify(settings));
electron.settingsApi.save(settings); <------ PASS OBJECT
但是當我返回響應時,它是:
ipcMain.on('readSettings', (event, _) => {
storage.getAll((err: Error, data: object) => {
if (err) {
return;
}
const { appSettings } = data;
const settings = new Settings();
settings.ipAddress= appSettings.ipAddress;
console.log('reading settings');
console.log(JSON.stringify(settings));
event.reply('readSettings', JSON.stringify(settings)); <-------- FACEPALM
});
});
我能說的——天才
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