無法解決異常類：ZXing

Question

我有一個項目在新設備和API級別上運行得非常好，但是，我在仿真器上遇到了一些問題。當我在模擬器上加載了程序，我碰到這個問題：

02-22 18:36:11.584: W/dalvikvm(652): VFY: unable to resolve exception class 872 (Lcom/google/zxing/WriterException;) 
02-22 18:36:11.584: W/dalvikvm(652): VFY: unable to find exception handler at addr 0x7da 
02-22 18:36:11.584: W/dalvikvm(652): VFY: rejected Lcom/example/myapp/Card;.getFrontView (Landroid/content/Context;)Landroid/widget/LinearLayout; 
02-22 18:36:11.584: W/dalvikvm(652): VFY: rejecting opcode 0x0d at 0x07da 
02-22 18:36:11.584: W/dalvikvm(652): VFY: rejected Lcom/example/myapp/Card;.getFrontView (Landroid/content/Context;)Landroid/widget/LinearLayout; 
02-22 18:36:11.584: W/dalvikvm(652): Verifier rejected class Lcom/example/myapp/Card; 

然後導致一個明顯java.lang.VerifyError爲Card類。

的問題想出了WriterException類，但這個類就是：

/* 
* Copyright 2008 ZXing authors 
* 
* Licensed under the Apache License, Version 2.0 (the "License"); 
* you may not use this file except in compliance with the License. 
* You may obtain a copy of the License at 
* 
*  http://www.apache.org/licenses/LICENSE-2.0 
* 
* Unless required by applicable law or agreed to in writing, software 
* distributed under the License is distributed on an "AS IS" BASIS, 
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 
* See the License for the specific language governing permissions and 
* limitations under the License. 
*/ 

package com.google.zxing; 

/** 
* A base class which covers the range of exceptions which may occur when encoding a barcode using 
* the Writer framework. 
* 
* @author dswitkin@google.com (Daniel Switkin) 
*/ 
public final class WriterException extends Exception { 

    public WriterException() { 
    } 

    public WriterException(String message) { 
    super(message); 
    } 

    public WriterException(Throwable cause) { 
    super(cause); 
    } 

} 

也許我失去了一些東西，爲什麼這導致在舊API級別的問題，但是這就是原因爲什麼我在這裏問這個問題！我讚賞SO的集體和大衆知識。

編輯：

我試圖通過處理這裏面上課更深去除拋出WriterException。這阻止了我上面列出的問題（仍然不知道爲什麼）。但是，出現了一個新問題！

我認爲這可能與我的圖書館沒有正確閱讀有關。我有一個用戶庫，裏面有ZXing core.jar。現在

02-22 18:56:49.564: W/dalvikvm(688): VFY: unable to find class referenced in signature (Lcom/google/zxing/BarcodeFormat;) 
02-22 18:56:49.604: E/dalvikvm(688): Could not find class 'com.google.zxing.EncodeHintType', referenced from method Barcode.BarcodeGenerator.encodeAsBitmap 
02-22 18:56:49.604: W/dalvikvm(688): VFY: unable to resolve const-class 869 (Lcom/google/zxing/EncodeHintType;) in LBarcode/BarcodeGenerator; 
02-22 18:56:49.604: D/dalvikvm(688): VFY: replacing opcode 0x1c at 0x0011 
02-22 18:56:49.604: E/dalvikvm(688): Could not find class 'com.google.zxing.MultiFormatWriter', referenced from method Barcode.BarcodeGenerator.encodeAsBitmap 
02-22 18:56:49.604: W/dalvikvm(688): VFY: unable to resolve new-instance 870 (Lcom/google/zxing/MultiFormatWriter;) in LBarcode/BarcodeGenerator; 

在我警告

：將.jar列出每一個類，並會打開這一切，但我得到。我真的有了這一切難倒..

Here is a screenshot of the User Library, called ZXing, that I have added to my project's Java Build Path > Libraries.

Answer 1

這無關WriterException，你不應該修改代碼。圖書館本身很好。你可以看到實際上有很多類都丟失了，可能都是這些類。你還沒有包括圖書館。既然你說你重新包裝它，問題就在那裏。這些類不在.jar中，或者您可以將其作爲.jar包含在.jar中。