let context = this.getUIContext().getHostContext() as common.UIAbilityContext;


let link: string = targetUrl
let openLinkOptions: OpenLinkOptions = {
  appLinkingOnly: false
};

try {
  context.openLink(link, openLinkOptions)
    .then(() => {
    }).catch((err: BusinessError) => {
  });
} catch (paramError) {
}