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This article mainly introduces what is the implementation process of gradle in the Android project, has a certain reference value, interested friends can refer to, I hope you can learn a lot after reading this article, the following let the editor take you to understand it.

Gradle file execution process

Students who have done Android development know that there are three gradle files in the Android project, do you know their implementation process? Please look at the picture below:

In order to verify the conclusion

We use the output string to verify the correctness of

The output is as follows:

Customizing the import method of gradle files

The three gradle files described above are managed by the system, can we create gradle files? The answer is yes.

So how do we introduce the gradle file we created? For more information, please see the following picture:

Step 1: create a yiqi.gradle file

Ext {/ / ext cannot drop / / define a string firstName = "yiqi" / / define a collection firstList = ['asides,' b'] / / define a map firstMap = ['K1FY:' v1century, 'K2FY:' v2']}

Step 2: introduce a custom yiqi.gradle file into the build.gradle file under project

Step 3: use variables

Note: ext {} cannot be reduced in custom gradle files.

How variables defined in gradle are used by java code

Step 1: define a variable in gradle

/ / define a string firstName = "yiqi" / / define a collection firstList = ['astats,' b'] / / define a map firstMap = [K1: 'v1lines,' K2codes: 'v2'] / / define an integer firstInt = 10 / / define a bool firstBool = false / / define a double firstDouble = 10.25

Step 2: configure the configuration code that automatically generates java code = "mainly use buildConfigField code."

Note: the three parameters in the buildConfigField () method are all of string type, otherwise an error will be reported

Step 3: click clean Project and then click make Project

We can see our configuration information in BuildConfig, an automatically built class, and these fields can be used in formal code.

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