離子Facebook和條形碼掃描儀問題

Question

我在使用Facebook插件和條形碼掃描器時遇到問題，首先我創建了一個單獨的項目來檢查Facebook插件的工作方式並正常運行，但是當我將Facebook插件添加到我的項目中時，我使用條形碼掃描器插件無法在android中運行該項目，出現以下異常：

 BUILD FAILED

Total time: 10.111 secs
FAILURE: Build failed with an exception.

* What went wrong:
Execution failed for task ':transformClassesWithJarMergingForDebug'.
> com.android.build.api.transform.TransformException: java.util.zip.ZipException: duplicate entry: com/google/zxing/BarcodeFormat.class

* Try:
Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output.
Error: cmd: Command failed with exit code 1 Error output:
Note: Some input files use or override a deprecated API.
Note: Recompile with -Xlint:deprecation for details.

FAILURE: Build failed with an exception.

* What went wrong:
Execution failed for task ':transformClassesWithJarMergingForDebug'.
> com.android.build.api.transform.TransformException: java.util.zip.ZipException: duplicate entry: com/google/zxing/BarcodeFormat.class

* Try:
Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output.

[ERROR] An error occurred while running cordova run android (exit code 1).

Answer 1

步驟1：安裝條形碼掃描器插件：

$ ionic cordova plugin add phonegap-plugin-barcodescanner
$ npm install --save @ionic-native/barcode-scanner

步驟2：安裝Facebook插件：（使用下面的facebook插件版本）

ionic cordova plugin add cordova-plugin-facebook4@1.7.4 --variable APP_ID="****" --variable APP_NAME="****"
npm install --save @ionic-native/facebook

步驟3：從以下路徑打開文件facebookconnect.xml ： yourapp\\platforms\\android\\app\\src\\main\\res\\values然后在<resources></resources>添加兩行

<resources>
  <string name="fb_app_id">***your_app_id***</string>
  <string name="fb_app_name">***your_app_name***</string>
</resources>

第4步：命令： cordova clean允許cordova清潔您的應用

第5步：命令： cordova build -檢查cordova構建您的應用

第6步：命令： ionic cordova build android應用

Answer 2

更改所需的Facebook插件版本可以為我解決此問題。

ionic cordova plugin add cordova-plugin-facebook4@1.7.4 --variable APP_ID="" --variable APP_NAME=""