如何使用startAbility实现应用跳转？

Question

如何使用startAbility实现应用跳转？
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Answer 1

startAbility接口是将应用链接放入want中，通过调用隐式want匹配的方法触发应用跳转。通过startAbility接口启动时，还需要调用方传入待匹配的action和entity。

import { common, Want } from '@kit.AbilityKit';
import { BusinessError } from '@kit.BasicServicesKit';
import { hilog } from '@kit.PerformanceAnalysisKit';

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

@Entry
@Component
struct Index {
  build() {
    Button('start ability', { type: ButtonType.Capsule, stateEffect: true })
      .width('87%')
      .height('5%')
      .margin({ bottom: '12vp' })
      .onClick(() => {
        let context: common.UIAbilityContext = getContext(this) as common.UIAbilityContext;
        let want: Want = {
            uri: "link://www.example.com"
        };

        try {
          context.startAbility(want).then(() => {
            hilog.info(DOMAIN_NUMBER, TAG, 'start ability success.');
          }).catch((err: BusinessError) => {
            hilog.error(DOMAIN_NUMBER, TAG, `start ability failed. Code is ${err.code}, message is ${err.message}`);
          });
        } catch (paramError) {
          hilog.error(DOMAIN_NUMBER, TAG, `Failed to start ability. Code is ${paramError.code}, message is ${paramError.message}`);
        }
      })
  }
}

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