在android gradle中导入itext-7 [英] Import itext-7 in android gradle

问题描述

编译'com.itextpdf：root：

我试图在android中添加itext-7， 7.0.0'

我仍然无法找到itext的类，例如PDFWriter等。

请让我知道是否有针对Android的itext-7的单独版本，以及如何添加它。

PS ：我已经成功添加了 itext-5 ，但我想使用 itext- 7 。

解决方案

根工件是纯粹的父级pom，根本不包含iText 7类。 b

如果你想包含所有的iText 7核心功能，你应该尝试

  compile'c​​om。 itextpdf：itext7-core：7.0.2'
  

如果这不起作用由于缺少Android中的Java类），或者如果您只是想要更精简的安装，请注意，与iText 5相比，较新的iText 7不是作为一个大的jar包而是作为一组模块来分发。

对于Maven，您可以使用以下依赖项（或更可能是它们的子集）;您可以轻松地从它们中构建gradle compile 语句：

 < dependencies> ; 
 
 <！ - 总是需要 - > 
< dependency> 
< groupId> com.itextpdf< / groupId> 
< artifactId>内核< / artifactId> 
< version> 7.0.2< / version> 
< /依赖关系> 
 
 <！ - 总是需要 - > 
< dependency> 
< groupId> com.itextpdf< / groupId> 
< artifactId> io< / artifactId> 
< version> 7.0.2< / version> 
< /依赖关系> 
 
 <！ - 总是需要 - > 
< dependency> 
< groupId> com.itextpdf< / groupId> 
< artifactId>布局< / artifactId> 
< version> 7.0.2< / version> 
< /依赖关系> 
 
 <！ -   - 仅用于表单 - > 
< dependency> 
< groupId> com.itextpdf< / groupId> 
< artifactId>表单< / artifactId> 
< version> 7.0.2< / version> 
< /依赖关系> 
 
 <！ - 仅用于PDF / A  - > 
< dependency> 
< groupId> com.itextpdf< / groupId> 
< artifactId> pdfa< / artifactId> 
< version> 7.0.2< / version> 
< /依赖关系> 
 
 <！ -   - 仅用于数字签名 - > 
< dependency> 
< groupId> com.itextpdf< / groupId> 
< artifactId>符号< / artifactId> 
< version> 7.0.2< / version> 
< /依赖关系> 
 
 <！ -   - 仅用于条形码 - > 
< dependency> 
< groupId> com.itextpdf< / groupId> 
< artifactId>条形码< / artifactId> 
< version> 7.0.2< / version> 
< /依赖关系> 
 
 <！ -   - 仅用于亚洲字体 - > 
< dependency> 
< groupId> com.itextpdf< / groupId> 
< artifactId> font-asian< / artifactId> 
< version> 7.0.2< / version> 
< /依赖关系> 
 
 <！ -   - 只需要连字符 - > 
< dependency> 
< groupId> com.itextpdf< / groupId> 
< artifactId> hyph< / artifactId> 
< version> 7.0.2< / version> 
< /依赖关系> 
 
< /依赖关系> 
  

（开发iText 7 关于developers.itextpdf.com）

至于Android：目前iText 7与Android不兼容，而且您的将 出现编译错误。

I am trying to add itext-7 to android, after adding the following in gradle

compile 'com.itextpdf:root:7.0.0'

I am still not able to find the classes of itext e.g PDFWriter etc.

Please let me know if there's separate version for itext-7 for Android also how to add it.

P.S: I have added itext-5 successfully, but i want to work with itext-7 now.

解决方案

The root artifact is a mere parent pom and does not contain iText 7 classes at all.

If you want to include all iText 7 Core functionality, you should try

compile 'com.itextpdf:itext7-core:7.0.2'

If this does not work out of the box (e.g. due to missing Java classes in Android), or if you simply want a leaner installation, note that in contrast to iText 5 the newer iText 7 is not distributed as one big jar but as a set of modules.

For Maven you would use the following dependencies (or more likely a subset from them); you can easily build gradle compile statements from them:

<dependencies>

    <!-- always needed -->
    <dependency>
        <groupId>com.itextpdf</groupId>
        <artifactId>kernel</artifactId>
        <version>7.0.2</version>
    </dependency>

    <!-- always needed -->
    <dependency>
        <groupId>com.itextpdf</groupId>
        <artifactId>io</artifactId>
        <version>7.0.2</version>
    </dependency>

    <!-- always needed -->
    <dependency>
        <groupId>com.itextpdf</groupId>
        <artifactId>layout</artifactId>
        <version>7.0.2</version>
    </dependency>

    <!-- only needed for forms -->
    <dependency>
        <groupId>com.itextpdf</groupId>
        <artifactId>forms</artifactId>
        <version>7.0.2</version>
    </dependency>

    <!-- only needed for PDF/A -->
    <dependency>
        <groupId>com.itextpdf</groupId>
        <artifactId>pdfa</artifactId>
        <version>7.0.2</version>
    </dependency>

    <!-- only needed for digital signatures -->
    <dependency>
        <groupId>com.itextpdf</groupId>
        <artifactId>sign</artifactId>
        <version>7.0.2</version>
    </dependency>

    <!-- only needed for barcodes -->
    <dependency>
        <groupId>com.itextpdf</groupId>
        <artifactId>barcodes</artifactId>
        <version>7.0.2</version>
    </dependency>

    <!-- only needed for Asian fonts -->
    <dependency>
        <groupId>com.itextpdf</groupId>
        <artifactId>font-asian</artifactId>
        <version>7.0.2</version>
    </dependency>

    <!-- only needed for hyphenation -->
    <dependency>
        <groupId>com.itextpdf</groupId>
        <artifactId>hyph</artifactId>
        <version>7.0.2</version>
    </dependency>

</dependencies>

(Getting started with iText 7 on developers.itextpdf.com)

As for Android: currently iText 7 is not compatible with Android and you will get compilation errors.

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