1.官方例程camera-calibration

2.将官方例程camera-calibration copy到AndroidStudioProjects项目目录下

3修改AndroidManifest.xml

<?xml version="1.0" encoding="utf-8"?>

<manifest xmlns:android=“http://schemas.android.com/apk/res/android”
package=“org.opencv.samples.cameracalibration”

<application
    android:label="@string/app_name"
    android:icon="@drawable/icon">

    <activity android:name="CameraCalibrationActivity"
              android:label="@string/app_name"
              android:screenOrientation="landscape"
              android:configChanges="keyboardHidden|orientation">
        <intent-filter>
            <action android:name="android.intent.action.MAIN" />
            <category android:name="android.intent.category.LAUNCHER" />
        </intent-filter>
    </activity>
</application>

<supports-screens android:resizeable="true"
                  android:smallScreens="true"
                  android:normalScreens="true"
                  android:largeScreens="true"
                  android:anyDensity="true" />

<uses-permission android:name="android.permission.CAMERA"/>

<uses-feature android:name="android.hardware.camera" android:required="false"/>
<uses-feature android:name="android.hardware.camera.autofocus" android:required="false"/>
<uses-feature android:name="android.hardware.camera.front" android:required="false"/>
<uses-feature android:name="android.hardware.camera.front.autofocus" android:required="false"/>

4.将opencv sdk当作module导入，并设置依赖：

5.下面是修改Gradle的各个文件

rootProject.name = “camera-calibration”
include ‘:libopencv’

apply plugin: ‘com.android.library’

def openCVersionName = “4.5.0”
def openCVersionCode = ((4 * 100 + 5) * 100 + 0) * 10 + 0

println "OpenCV: " +openCVersionName + " " + project.buildscript.sourceFile

android {
compileSdkVersion 26

defaultConfig {
    minSdkVersion 21
    targetSdkVersion 26

    versionCode openCVersionCode
    versionName openCVersionName

    externalNativeBuild {
        cmake {
            arguments "-DANDROID_STL=c++_shared"
            targets "opencv_jni_shared"
        }
    }
}

buildTypes {
    debug {
        packagingOptions {
            doNotStrip '**/*.so'  // controlled by OpenCV CMake scripts
        }
    }
    release {
        packagingOptions {
            doNotStrip '**/*.so'  // controlled by OpenCV CMake scripts
        }
        minifyEnabled false
        proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.txt'
    }
}
compileOptions {
    sourceCompatibility JavaVersion.VERSION_1_6
    targetCompatibility JavaVersion.VERSION_1_6
}

sourceSets {
    main {
        jniLibs.srcDirs = ['native/libs']
        java.srcDirs = ['java/src']
        aidl.srcDirs = ['java/src']
        res.srcDirs = ['java/res']
        manifest.srcFile 'java/AndroidManifest.xml'
    }
}

externalNativeBuild {
    cmake {
        path (project.projectDir.toString() + '/libcxx_helper/CMakeLists.txt')
    }
}

}

dependencies {
}

下面要添加aliyun的镜像路径，不然会报错误：Android无法正常获取https://dl.google.com/dl/android/maven2/com/…

apply plugin: ‘com.android.application’
android {
compileSdkVersion 26
defaultConfig {
applicationId “org.opencv.samples.cameracalibration”
minSdkVersion 21
targetSdkVersion 26
versionCode 301
versionName “3.01”
}
buildTypes {
release {
minifyEnabled false
proguardFiles getDefaultProguardFile(‘proguard-android.txt’), ‘proguard-rules.pro’
}
}
sourceSets {
main {
java.srcDirs = [‘src’]
aidl.srcDirs = [‘src’]
res.srcDirs = [‘res’]
manifest.srcFile ‘AndroidManifest.xml’
}
}
}
buildscript {
repositories {
maven{ url ‘https://maven.aliyun.com/nexus/content/groups/public/’}
maven{ url ‘https://maven.aliyun.com/repository/google’}
maven{ url ‘https://maven.aliyun.com/repository/gradle-plugin’}
maven{ url ‘https://maven.aliyun.com/repository/public’}
maven{ url ‘https://maven.aliyun.com/repository/jcenter’}
// google()
// mavenCentral()
}
dependencies {
classpath “com.android.tools.build:gradle:4.2.1”

    // NOTE: Do not place your application dependencies here; they belong
    // in the individual module build.gradle files
}

}
allprojects {
repositories {
maven{ url ‘https://maven.aliyun.com/nexus/content/groups/public/’}
maven{ url ‘https://maven.aliyun.com/repository/google’}
maven{ url ‘https://maven.aliyun.com/repository/gradle-plugin’}
maven{ url ‘https://maven.aliyun.com/repository/public’}
maven{ url ‘https://maven.aliyun.com/repository/jcenter’}

// google()
// mavenCentral()
// jcenter() // Warning: this repository is going to shut down soon
}
}

dependencies {
//implementation fileTree(dir: ‘libs’, include: [‘*.jar’])
// implementation project(‘:opencv’)
implementation project(path: ‘:libopencv’)
}

在gradle.properties里面要把之前有按照其他人的方法设置了代理（比如别的大学的），需要把代理删掉。不然会报错误：Could not HEAD 'https://maven.aliyun.com/repository/google/com/android/tools/build/gradle/4.2.1/grad
C://user/**/.gradle/gradle.properties文件中检查有没有VPN代理，有的话注释掉

distributionBase=GRADLE_USER_HOME
distributionUrl=https://services.gradle.org/distributions/gradle-7.5-bin.zip
distributionPath=wrapper/dists
zipStorePath=wrapper/dists
zipStoreBase=GRADLE_USER_HOME