Explain the environment configuration in kotlin Android development in detail

Explain the environment configuration in kotlin Android development in detail

Install plug-ins on Android studio

After settings - > plugins - > Browse repositories.. - > kotlin is installed, restart Android studio to take effect, as shown in the figure:

Configure kotlin in Android studio

(1) Configure it in build.gradle in the root directory. The code is as follows:

(2) Usage configured in APP / build.gradle

In this way, the configuration of kotlin has been completed. Let's write the first project Hello world

Start using the first small demo

(1) Write a textview control in the layout file. The code is as follows:

(2) We find ID assignment and use

The code of the first way to find a control is as follows:

The second method code for finding the control is as follows:

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