实例项目的module结构

app module 的 manifests，其中android:value=”native-activity”与nativeactivity的build.gradle中的moduleName对应

<?xml version="1.0" encoding="utf-8"?><!-- BEGIN_INCLUDE(manifest) -->

<manifest xmlns:android="http://schemas.android.com/apk/res/android"

    package="com.example.native_activity"

    android:versionCode="1"

    android:versionName="1.0">

    <!-- This .apk has no Java code itself, so set hasCode to false. -->

    <application

        android:allowBackup="false"

        android:fullBackupContent="false"

        android:hasCode="false"

        android:icon="@mipmap/ic_launcher"

        android:label="@string/app_name">

        <!-- Our activity is the built-in NativeActivity framework class.

             This will take care of integrating with our NDK code. -->

        <activity

            android:name="android.app.NativeActivity"

            android:configChanges="orientation|keyboardHidden"

            android:label="@string/app_name">

            <!-- Tell NativeActivity the name of or .so -->

            <meta-data

                android:name="android.app.lib_name"

                android:value="native-activity" />

            <intent-filter>

                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />

            </intent-filter>

        </activity>

    </application>

</manifest><!-- END_INCLUDE(manifest) -->

native module的manifests

<manifest xmlns:android="http://schemas.android.com/apk/res/android"

    package="com.foohao.nativeactivity">

    <application/>

</manifest>

项目的build.gradle

// Top-level build file where you can add

// configuration options common to all sub-projects/modules.

buildscript {

    repositories {

        jcenter()

    }

    dependencies {

        classpath 'com.android.tools.build:gradle-experimental:0.7.0'

    }

}

allprojects {

    repositories {

        jcenter()

    }

}

app module的 build.gradle

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

model {

    android {

        compileSdkVersion = 23

        buildToolsVersion = '23.0.3'

        defaultConfig {

            applicationId = 'com.example.native_activity'

            minSdkVersion.apiLevel    = 18

            targetSdkVersion.apiLevel = 23

        }

        ndk {

            platformVersion = 18

            moduleName ='native-activity'

            toolchain = 'gcc'

            stl = 'gnustl_static'

            cppFlags.add('-std=c++11')

            ldLibs.addAll(['log', 'android', 'EGL', 'GLESv1_CM'])

        }

        sources {

            main {

                jni {

                    dependencies {

                        project ':nativeactivity' linkage 'static'

                    }

                }

            }

        }

        buildTypes {

            release {

                minifyEnabled = false

                proguardFiles.add(file('proguard-rules.txt'))

            }

        }

    }

}

nativeactivity module的 build.gradle

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

def ndkDir = System.getenv("ANDROID_NDK_HOME")

def propertiesFile = project.rootProject.file('local.properties')

if (propertiesFile.exists()) {

    Properties properties = new Properties()

    properties.load(propertiesFile.newDataInputStream())

    ndkDir = properties.getProperty('ndk.dir')

}

model {

    android {

        compileSdkVersion = 23

        buildToolsVersion = "23.0.3"

        defaultConfig.with {

            minSdkVersion.apiLevel = 18

            targetSdkVersion.apiLevel = 23

            versionCode = 1

            versionName = "0.0.1"

        }

        ndk {

            moduleName = 'native-activity'

            toolchain = 'gcc'

            ldLibs.addAll(['log', 'android'])

            ldFlags.add("-c")

        }

        sources {

            main {

                jni {

                    source {

                        srcDir "${ndkDir}/sources/android/native_app_glue"

                    }

                    exportedHeaders {

                        srcDir "${ndkDir}/sources/android/native_app_glue"

                    }

                }

            }

        }

    }

}