API切換概述

FA模型和Stage模型由于線程模型和進(jìn)程模型的差異，部分接口僅在FA模型下才能使用，針對(duì)這部分接口在SDK的接口中有FAModelOnly的標(biāo)記，用于提醒開發(fā)者這部分接口僅能在FA模型下使用。因此在切換到Stage模型時(shí)，需要將應(yīng)用中用到的FAModelOnly接口替換成Stage模型下對(duì)應(yīng)的接口。下面是startAbility的接口切換示例，全量接口列表請(qǐng)查看后續(xù)章節(jié)：

startAbility接口由FA模型切換到Stage模型的示例： 開發(fā)前請(qǐng)熟悉鴻蒙開發(fā)指導(dǎo)文檔 ：[gitee.com/li-shizhen-skin/harmony-os/blob/master/README.md]

• FA模型示例

  import featureAbility from '@ohos.ability.featureAbility';
  import Want from '@ohos.app.ability.Want';
  import hilog from '@ohos.hilog';
  
  const TAG: string = 'PagePageAbilityFirst';
  const domain: number = 0xFF00;
  
  @Entry
  @Component
  struct PagePageAbilityFirst {
  
    build() {
      Column() {
        List({ initialIndex: 0 }) {
          ListItem() {
            Flex({ justifyContent: FlexAlign.SpaceBetween, alignContent: FlexAlign.Center }) {
              //...
            }
            .onClick(() = > {
              (async (): Promise< void > = > {
                try {
                  hilog.info(domain, TAG, 'Begin to start ability');
                  let want: Want = {
                    bundleName: 'com.samples.famodelabilitydevelop',
                    moduleName: 'entry',
                    abilityName: 'com.samples.famodelabilitydevelop.PageAbilitySingleton'
                  };
                  await featureAbility.startAbility({ want: want });
                  hilog.info(domain, TAG, `Start ability succeed`);
                }
                catch (error) {
                  hilog.error(domain, TAG, 'Start ability failed with ' + error);
                }
              })()
            })
          }
          //...
        }
        //...
      }
      //...
    }
  }
  

• Stage示例示例
• HarmonyOS與OpenHarmony鴻蒙文檔籽料：mau123789是v直接拿
  

import hilog from '@ohos.hilog';
import Want from '@ohos.app.ability.Want';
import common from '@ohos.app.ability.common';
import { BusinessError } from '@ohos.base';
import { Caller } from '@ohos.app.ability.UIAbility';

const TAG: string = '[Page_UIAbilityComponentsInteractive]';
const DOMAIN_NUMBER: number = 0xFF00;

@Entry
@Component
struct Page_UIAbilityComponentsInteractive {
  private context = getContext(this) as common.UIAbilityContext;
  caller: Caller | undefined = undefined;
  build() {
    Column() {
      //...
      List({ initialIndex: 0 }) {
        ListItem() {
          Row() {
            //...
          }
          .onClick(() = > {
            // context為Ability對(duì)象的成員，在非Ability對(duì)象內(nèi)部調(diào)用需要
            // 將Context對(duì)象傳遞過去
            let wantInfo: Want = {
              deviceId: '', // deviceId為空表示本設(shè)備
              bundleName: 'com.samples.stagemodelabilitydevelop',
              moduleName: 'entry', // moduleName非必選
              abilityName: 'FuncAbilityA',
              parameters: { // 自定義信息
                info: '來自EntryAbility Page_UIAbilityComponentsInteractive頁面'
              },
            };
            // context為調(diào)用方UIAbility的UIAbilityContext
            this.context.startAbility(wantInfo).then(() = > {
              hilog.info(DOMAIN_NUMBER, TAG, 'startAbility success.');
            }).catch((error: BusinessError) = > {
              hilog.error(DOMAIN_NUMBER, TAG, 'startAbility failed.');
            });
          })
        }
        //...
      }
      //...
    }
    //...
  }
}

審核編輯 黃宇