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我正在寫一個android庫項目,並希望添加對maven的支持。我的圖書館項目POM文件看起來是這樣的:支持與maven的android庫項目
<project xmlns="http://maven.apache.org/POM/4.0.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>my_group_id</groupId>
<artifactId>my_artifactId</artifactId>
<version>1.0.1</version>
<packaging>apklib</packaging>
<name>My Library Project</name>
<dependencies>
<dependency>
<groupId>com.google.android</groupId>
<artifactId>android</artifactId>
<version>4.1.1.4</version>
<scope>provided</scope>
</dependency>
</dependencies>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
</properties>
<build>
<sourceDirectory>src</sourceDirectory>
<finalName>${project.artifactId}</finalName>
<plugins>
<plugin>
<groupId>com.jayway.maven.plugins.android.generation2</groupId>
<artifactId>android-maven-plugin</artifactId>
<version>3.8.2</version>
<extensions>true</extensions>
<configuration>
<sdk>
<platform>19</platform>
</sdk>
</configuration>
</plugin>
</plugins>
</build>
</project>
我的主要項目POM文件看起來是這樣的:
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.simpligility.android</groupId>
<artifactId>helloflashlight</artifactId>
<version>1.0.0</version>
<packaging>apk</packaging>
<name>HelloFlashlight</name>
<dependencies>
<dependency>
<groupId>com.google.android</groupId>
<artifactId>android</artifactId>
<version>4.1.1.4</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>my_group_id</groupId>
<artifactId>my_artifactId</artifactId>
<version>1.0.1</version>
<type>apklib</type>
</dependency>
</dependencies>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
</properties>
<build>
<sourceDirectory>src</sourceDirectory>
<finalName>${project.artifactId}</finalName>
<plugins>
<plugin>
<groupId>com.jayway.maven.plugins.android.generation2</groupId>
<artifactId>android-maven-plugin</artifactId>
<version>3.8.2</version>
<extensions>true</extensions>
<configuration>
<sdk>
<platform>19</platform>
</sdk>
</configuration>
</plugin>
</plugins>
</build>
</project>
我使用安裝庫項目,以我的本地庫:
mvn clean install
然後我編譯並安裝主要項目到我的本地倉庫使用:
mvn clean install
,並生成使用APK:
mvn android:deploy
現在,當我編譯使用Maven的項目出現問題。該項目編譯成功,但是當我在設備上運行apk時,在嘗試爲庫項目內部的資源執行findById時收到NullPointerException。請注意,部分時間findById會返回值,但並不總是正確的類型(例如,預期的佈局,但有一個按鈕)。有一點很重要,那就是在eclipse中運行時沒有一切都完美。
請提醒