https://github.com/spongebobsun/newndktest

NDK Project Template using Android Studio v1.3 & Gradle 2.5 & Experimental android plugin
https://github.com/spongebobsun/newndktest

Last synced: about 1 year ago
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NDK Project Template using Android Studio v1.3 & Gradle 2.5 & Experimental android plugin

• Host: GitHub
• URL: https://github.com/spongebobsun/newndktest
• Owner: SpongeBobSun
• Created: 2015-08-25T08:17:18.000Z (almost 11 years ago)
• Default Branch: master
• Last Pushed: 2015-08-26T03:08:38.000Z (almost 11 years ago)
• Last Synced: 2025-03-14T05:11:15.759Z (over 1 year ago)
• Language: Java
• Size: 203 KB
• Stars: 2
• Watchers: 1
• Forks: 2
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

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README

          
#NewNDKTest

NDK project template using Android Studio v1.3 & Gradle 2.5 & Experimental android plugin.

##Introduction

Due to android plugin has been updated, the gradle script need to be modified to add NDK support.

** This project is inspried by this post [NDK Developing Using Android Studio v1.3 (Chinese)](http://blog.csdn.net/g707175425/article/details/47154115) **

I have to say this new gradle script is better than the old one, but it's a pain in the arse to porting old projects to new one.

I hope this sample will give you a quick jump start on your NDK projects.

##Project Structure

This project is a test project.

Only thing it does is display a string returned from native code.

#####But, it contains new gradle script and project configs. 

#####Consider this is a backup & reference for my own.

##Gradle Part

Follow below instructions to modify your scripts.

1. Change your gradle to v2.5 if you are using an older version. (You may need to modify your `gradle-wrapper.properties` file)

2. Using experimental android plugin by changing `build.gradle` in your project ** root ** folder.

	

		buildscript {

    		repositories {

    	    	jcenter()

    		}

    		dependencies {

				classpath 'com.android.tools.build:gradle-experimental:0.1.0'

    		}

		}

		allprojects {

    		repositories {

        		jcenter()

    		}

		}

		

3. Change `build.gradle` in your app module.

	* Using 'com.android.model.application' plugin instead of the old one by changing the first line of this file.

	

			apply plugin: 'com.android.model.application'

			

	* Using equation (`a = b`) when passing value to variables

			

	* In the new script grammar, `android` module is located in `model` section. So wrap your `android` module with a `model` module.

	

			apply plugin: 'com.android.model.application'

			model {

    			android {

        			compileSdkVersion = 22

        			buildToolsVersion = "22.0.1"

        		defaultConfig.with {

            		applicationId = "sun.bob.newndktest"

            		minSdkVersion.apiLevel = 8

            		targetSdkVersion.apiLevel = 23

            		versionCode = 1

            		versionName = "1.0"

        		}

        		tasks.withType(JavaCompile) {

            		sourceCompatibility = JavaVersion.VERSION_1_7

            		targetCompatibility = JavaVersion.VERSION_1_7

        		}

    		}

	* As for the `buildType`, `sources`, `productFlavors` and other gradle modules, they are moved to outside of 'android' module but with an 'android' prefix.

			apply plugin: 'com.android.model.application'

			model {

    			android {

        			....

        		}

    		}

			android.buildTypes {

	            release {

	                isMinifyEnabled = false

	                proguardFiles += file('proguard-rules.pro')

	            }

	        }

	        android.sources {

	            main{

	                java {

	                    source{

	                        srcDir 'src'

	                    }

	                }

	            }

	        }

	        android.ndk {

	            moduleName="JNITest"

	            ldLibs += 'log'

	            ldLibs += 'z'

	            ldLibs += 'm'

	            abiFilters += "armeabi"

	            abiFilters += "armeabi-v7a"

	            abiFilters += "x86"

	        }

	        

##Java Part

* Add an jni folder to your project by - 

		Right click your src/main folder and choose 'New' => 'Folder(with an droid icon)' => 'JNI Folder'.

		

* Create a java class in your package (NOT THE JNI FOLDER WE JUST CREATED!) and declare some native method in it.

* Use `javah` to generate header.

* Implement native method.

* Build, Run, Have fun.