Gradle 将项目转换为模块后失败

Question

我正在尝试将 PDFNet 库集成到我的 Android 应用程序中，如果您下载 SDK，您会看到有一个项目 CompleteReader (PDFNetAndroid-6.7.0. 42960\PDFNetAndroid\samples\PDFViewCtrlProjects\CompleteReader) 我想将此项目用作我的应用程序中的模块，所以我将 build.gradle "com.android.application" 更改为 "com.android.library"

此处原文build.gradle：

description = 'This is a more complete demo app that showcases PDFViewCtrl and the Tools library and its controls.'

apply plugin: 'com.android.application'

repositories {
    mavenCentral()
}

buildscript {
    repositories {
        mavenCentral()
        jcenter()
    }

    dependencies {
        classpath 'com.android.tools.build:gradle:1.3.0'
        classpath 'com.trello:victor:0.1.4'
    }
}

apply plugin: 'com.android.application'
apply plugin: 'com.trello.victor'


dependencies {
    compile fileTree(include: '*.jar', dir: 'libs')
    compile project(':PDFViewCtrlTools')
    compile 'com.android.support:appcompat-v7:23.1.1'
    compile 'com.android.support:design:23.1.1'
    compile 'com.jakewharton:butterknife:7.0.1'
    compile 'com.tonicartos:superslim:0.4.13'
}

android {
    compileSdkVersion 23
    buildToolsVersion "23.0.2"

    defaultConfig {
        minSdkVersion 16
        targetSdkVersion 23
        versionCode 1
        versionName "1.0.0"
    }

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

    buildTypes {
        release {
            minifyEnabled true
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-project.txt'
        }
        debug {
            // Set package name to <app package>.debug to be able to install both debug and release apk on the same device
            applicationIdSuffix ".debug"
        }
    }

    lintOptions {
        // If true, stop the gradle build if errors are found
        abortOnError false
        //ignore 'ValidFragment'
    }

    productFlavors {
        armv7a {
            ndk {
                abiFilters "armeabi-v7a"
            }
        }
        arm {
            ndk {
                abiFilters "armeabi"
            }
        }
        x86 {
            ndk {
                abiFilters "x86"
            }
        }
        armv8 {
            ndk {
                abiFilters "arm64-v8a"
            }
        }
        x86_64 {
            ndk {
                abiFilters "x86_64"
            }
        }
        fat {
            ndk {
                abiFilters "armeabi-v7a", "armeabi", "arm64-v8a", "x86", "x86_64"
            }
        }
    }
}
task copyLibsToSamples << {
    ['libs'
     ].each { dest ->
        copy {
            from ('../../../lib/full') {
                include '**/*.so'
            }
            into dest
        }
     }
}

task copyJarToSamples(type: Copy) {
    ['../../../lib/src/PDFViewCtrlTools/libs'
     ].each { dest ->
        copy {
            from ('../../../lib') {
                include 'PDFNet.jar'
            }
            into dest
        }
     }
}

task copyResources << {
    ['res/raw'].each { dest ->
        copy {
            from ('../../../resource') {
                include '*.plugin'
            }
            into dest
        }
    }
}

task setupSample(dependsOn: [copyLibsToSamples, copyJarToSamples, copyResources])

preBuild.dependsOn setupSample

这个原始文件编译没有问题，但是随着对库的更改它不会构建，所以我删除了以下我在某处读到的可能是问题的内容：

repositories {
    mavenCentral()
}

好的，通过这个更改似乎可以继续构建，我得到的下一个错误是以下两个无法解决的引用（这在原始文件未修改的情况下都有效！！！）：

compile 'com.jakewharton:butterknife:7.0.1'
compile 'com.tonicartos:superslim:0.4.13'

我已经在这个文件中尝试了很多东西已经几天没有运气，我删除了所有不需要的部分，移动了 jcenter 和 mavencentral，添加它们，删除它们等等。这是我当前的 build.gradle 也不起作用：

description = 'This is a more complete demo app that showcases PDFViewCtrl and the Tools library and its controls.'

buildscript {
    repositories {
        jcenter()
    }

    dependencies {
        classpath 'com.android.tools.build:gradle:2.1.0'
        classpath 'com.trello:victor:0.1.4'
    }
}

apply plugin: 'com.android.library'
apply plugin: 'com.trello.victor'

dependencies {
    repositories {
        mavenCentral()
        jcenter()
    }
    compile fileTree(include: '*.jar', dir: 'libs')
    compile project(':PDFViewCtrlTools')
    compile 'com.android.support:appcompat-v7:23.4.0'
    compile 'com.android.support:design:23.4.0'
    compile project(':superslim-0.4.13')
    compile 'com.jakewharton:butterknife:7.0.1'
}

android {
    compileSdkVersion 23
    buildToolsVersion "23.0.3"

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

    lintOptions {
        // If true, stop the gradle build if errors are found
        abortOnError false
        //ignore 'ValidFragment'
    }
}

task wrapper(type: Wrapper) {
    gradleVersion = '2.2'
}

无论我更改什么，模块都无法编译，任务执行失败 CompleteReader:compileDebugJavaWithJavac 并且未生成 R，所以我得到很多 "constant expression required"。我重复一遍，在将 "application" 更改为 "library" 之前一切正常，我可以在我的 phone 上安装项目，等等

你知道哪里出了问题吗？我已经为此工作了 3 天，但运气不佳！

Answer 1

问题似乎出在 butterknife 上。在 PDFNet Android SDK 的未来版本中，为了用户的方便，我们将在任何示例项目中删除 butterknife。

同时，我们建议您在 CompleteReader 示例项目中删除对 butterknife 的使用。为此：

按照自述文件中的描述打开 CompleteReader 示例项目
从 CompleteReader 的 build.gradle 文件中删除 compile 'com.jakewharton:butterknife:7.0.1'

尝试编译源代码时解决所有错误，即在 BaseFileAdapter.java 中将 ContentViewHolder class 更改为以下内容：

static class ContentViewHolder extends RecyclerView.ViewHolder {

    ImageView imageViewFileIcon;
    ImageView imageViewFileLockIcon;
    TextView textViewFileName;
    TextView textViewFileInfo;
    ImageView imageViewFavoriteIcon;
    ImageView imageViewInfoIcon;
    View infoButton;

    @TargetApi(Build.VERSION_CODES.JELLY_BEAN_MR1)
    public ContentViewHolder(View itemView) {
        super(itemView);

        imageViewFileIcon = (ImageView) itemView.findViewById(R.id.file_icon);
        imageViewFileLockIcon = (ImageView) itemView.findViewById(R.id.file_lock_icon);
        textViewFileName = (TextView) itemView.findViewById(R.id.file_name);
        textViewFileInfo = (TextView) itemView.findViewById(R.id.file_info);
        imageViewFavoriteIcon = (ImageView) itemView.findViewById(R.id.favorite_icon);
        imageViewInfoIcon = (ImageView) itemView.findViewById(R.id.info_icon);
        infoButton = itemView.findViewById(R.id.info_button);


        if (Utils.isJellyBeanMR1() && textViewFileName != null && textViewFileInfo != null) {
            // instead of creating a different layout for v17 we set alignment in the code:
            if (textViewFileName.getGravity() != Gravity.CENTER) {
                textViewFileName.setTextAlignment(View.TEXT_ALIGNMENT_VIEW_START);
            }
            textViewFileName.setTextDirection(View.TEXT_DIRECTION_LTR);
            textViewFileInfo.setTextDirection(View.TEXT_DIRECTION_LOCALE);
        }
    }
}

对使用 butterknife
项目编译正常后将应用程序转换为库

Gradle 将项目转换为模块后失败

Gradle fails after converting project into module

android

gradle

android-gradle-plugin

pdfnet