onWindowStageCreate(windowStage: window.WindowStage) {
// Main window is created, set main page for this ability
hilog.info(0x0000, 'testTag', '%{public}s', 'Ability onWindowStageCreate');
windowStage.loadContent('pages/Index', (err, data) => {
if (err.code) {
hilog.error(0x0000, 'testTag', 'Failed to load the content. Cause: %{public}s', JSON.stringify(err) ?? '');
return;
}
windowStage.getMainWindow((err: BusinessError, data) => {
let errCode: number = err.code;
if (errCode) {
console.error('Failed to obtain the main window.Cause:' + JSON.stringify(err))
}
let uiContext = data.getUIContext();
console.log(JSON.stringify(uiContext))
})
hilog.info(0x0000, 'testTag', 'Succeeded in loading the content. Data: %{public}s', JSON.stringify(data) ?? '');
});
}
loadcontent和getMainWindow两个接口是异步的,getUIContext是同步接口。loadcontent和getMainWindow会同时执行但是回调时序不保证,就会有先getMainWindow拿到结果,但此时content没有完成加载的情况。loadcontent和getMainWindow两个接口是异步的,最好是再Loadcontent的回调中调用接口。保证时序。推荐示例: