在ZXing项目的切换例机器人错误 [英] Error in Switch cases of ZXing project in android

问题描述

我已经下载从<一个的ZXing项目href="http://$c$c.google.com/p/zxing/downloads/detail?name=ZXing-2.0.zip&can=2&q=">http://$c$c.google.com/p/zxing/downloads/detail?name=ZXing-2.0.zip&can=2&q=而随后的<一个所有步骤href="http://damianflannery.word$p$pss.com/2011/06/13/integrate-zxing-bar$c$c-scanner-into-your-android-app-natively-using-eclipse/">http://damianflannery.word$p$pss.com/2011/06/13/integrate-zxing-bar$c$c-scanner-into-your-android-app-natively-using-eclipse/.

I have downloaded the ZXing project from the http://code.google.com/p/zxing/downloads/detail?name=ZXing-2.0.zip&can=2&q= and followed all the steps of http://damianflannery.wordpress.com/2011/06/13/integrate-zxing-barcode-scanner-into-your-android-app-natively-using-eclipse/.

但我的ZXing项目给错误的ZXing库的开关情况。

But my ZXing project is giving error in switch cases of ZXing Library.

误差在以下code

private final Handler handler = new Handler() {
    @Override
    public void handleMessage(Message message) {
      switch (message.what) {
        case R.id.search_book_contents_succeeded:
          handleSearchResults((JSONObject) message.obj);
          resetForNewQuery();
          break;
        case R.id.search_book_contents_failed:
          resetForNewQuery();
          headerView.setText(R.string.msg_sbc_failed);
          break;
      }
    }
  };

误差在switch语句 错误是情况下，前pressions必须是恒定的前pressions

error is in switch statement error is "case expressions must be constant expressions"

你知道吗？ Thanxs

Any Idea ? Thanxs

推荐答案

您需要的情况下语句转换成if语句如果编译zxing作为一个库。选择在Eclipse并使用Ctrl + 1的文字，让月食为你做这个。

You need to convert the case statements to if statements if you compile zxing as a library. Select the text in eclipse and use ctrl+1 to let eclipse do this for you.

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