How to debug uniapp? Brief analysis of methods

UniApp is a cross-platform application development framework based on the Vue.js framework. It can quickly publish applications to various mainstream mobile platforms, such as iOS, Android, etc. During the development process, debugging is used to make the application more perfect. Therefore, next we will introduce in detail the debugging of UniApp.

1. Environment Settings

UniApp officially recommends using HBuilder X for development, so we need to download and install the HBuilder X tool. During the installation process, you need to choose to install the Node.js and UniApp plug-ins. After the installation is complete, we can start debugging UniApp.

2. Debugging Tools

HBuilder X provides a variety of debugging tools, including Chrome debugger, WeChat developer tools, etc. Among them, the Chrome debugger is the debugging tool that comes with HBuilder X and can be used to debug Web and App. WeChat developer tools are used to debug WeChat mini programs and can simulate the environment and functions of WeChat mini programs.

3. Debugging method

1. Use the Chrome debugger for Web debugging

In HBuilder X, we can use the Chrome debugger for Web debugging. The steps are as follows:

1.1 Start HBuilder X and open the UniApp project.

1.2 Click the Run button in the toolbar and select the running mode as "Run into Chrome browser".

1.3 In the pop-up Chrome browser, press F12 to open the developer tools.

1.4 In the Sources panel of the developer tools, find the file you want to debug, such as index.vue.

1.5 Put breakpoints on the top and bottom of the file and refresh the page to debug.

2. Use the Chrome debugger for mobile debugging

In HBuilder X, we can use the Chrome debugger for mobile debugging. The steps are as follows:

2.1 Connect the mobile phone and computer and ensure that the mobile phone and computer are in the same LAN.

2.2 Start HBuilder X and open the UniApp project.

2.3 Click the Run button in the toolbar and select the running mode as "Run to mobile phone or emulator".

2.4 Open the application on your phone or emulator and press F12 to open the developer tools.

2.5 In the Remote Devices panel of the developer tools, find the device and application you want to debug.

2.6 Set breakpoints at the top and bottom of the program and refresh the page to debug.

3. Use WeChat developer tools for mobile debugging

In HBuilder X, we can also use WeChat developer tools for mobile debugging. The steps are as follows:

3.1 Start HBuilder X and open the UniApp project.

3.2 Click the Run button in the toolbar and select the running mode as "Run into WeChat applet".

3.3 Open the WeChat developer tools and select the mini program to be debugged in the toolbar.

3.4 Find the file to be debugged in the developer tools, such as index.vue.

3.5 Put breakpoints on the top and bottom of the file and refresh the page to debug.

4. Notes

When debugging UniApp, you need to pay attention to the following points:

1. When debugging on the mobile terminal, you need to ensure that the mobile phone and computer are in the same LAN Inside.

2. Before debugging, you need to ensure that the application has been started.

3. Before debugging, you need to set breakpoints in the code.

In short, debugging UniApp is a relatively simple process. After mastering all the above methods, you can easily debug it.

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