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The uni-app App has a built-in HTML5+ engine, allowing js to directly call rich native capabilities.

Conditional compilation calls HTML5+

Platforms such as Applet and H5 do not have HTML5+ extension specification, so when uni-app calls HTML5+ extension specification, you need to pay attention to using conditional compilation. Otherwise, the plus is not defined error will appear when running to h5, applet and other platforms.

// #ifdef APP-PLUS
var appid = plus.runtime.appid;
console.log('应用的 appid 为：' + appid);
// #endif

uni-app does not need plus ready

To use the plus api in html, you need to wait for plus ready. And uni-app does not need to wait and can be used directly. And if you call plus ready, it will not trigger.

Event listeners in uni-app

In ordinary H5+ projects, you need to use document.addEventListener to listen to native extension events.

In uni-app, there is no document. This can be done using plus.globalEvent.addEventListener.

// #ifdef APP-PLUS
// Listen for new intent events
plus.globalEvent.addEventListener('newintent', function(){});
// #endif

Similarly, when using Native.js in uni-app, some native event monitoring in Native.js also needs to be implemented according to the above method.