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This article mainly introduces the example analysis of WeChat Mini Programs compatibility, which is very detailed and has a certain reference value. Friends who are interested must finish it!

The functions of Mini Program are constantly increasing, but the old version of Wechat does not support new features, so you need to be compatible when using these new capabilities.

The document will include the version number supported by each function in the page description of the component, API, etc.

You can obtain the base library version number of Mini Program through wx.getSystemInfo or wx.getSystemInfoSync.

You can also use the wx.canIUse details to determine whether the corresponding API or components can be used directly under the basic library version.

Compatible mode-interface

For the new API, you can use the following code to determine whether the user's phone is supported or not.

If (wx.openBluetoothAdapter) {wx.openBluetoothAdapter ()} else {/ / if you want users to experience your Mini Program on the latest version of the client, you can prompt wx.showModal ({title: 'hint', content: 'the current Wechat version is too low to use this feature, please upgrade to the latest Wechat version and try again.' })} compatibility mode-parameters

If there are additional parameters in the parameters or return values of API, you can use the following code to judge.

Wx.showModal ({success: function (res) {if (wx.canIUse ('showModal.cancel')) {console.log (res.cancel)}}) compatibility method-component

For components, the new properties will not be processed on the older version, but will not report an error. If a special scenario requires some downgrading of the old version, you can do this.

Page ({data: {canIUse: wx.canIUse ('button.open-type.contact')}) customer service message above is all the content of the article "sample Analysis of WeChat Mini Programs compatibility". Thank you for reading! Hope to share the content to help you, more related knowledge, welcome to follow the industry information channel!

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