Zxing新动态扫描结果 [英] Zxing scan result on new Activity

问题描述

我已经加入Zxing 3.0.1作为库项目中，我有2个布局：第一次我有按钮，叫 CaptureActivity Zxing库，然后在 CaptureActivit Ÿ德codeA酒吧codeI需要把这个code上的第二布局成的的TextView 的。我怎样才能做到这一点？如果有人知道，请写一步一步的手动，因为在和Android初学者，不知道该怎么code。

我必须把东西code，这部分的 CaptureActivity

 公共无效的onActivityResult（INT申请code，INT结果code，意图意图）{
如果（结果code == RESULT_OK）{
  如果（要求code == HISTORY_REQUEST_ code）{    INT itemNumber = intent.getIntExtra（Intents.History.ITEM_NUMBER，-1）;
    如果（itemNumber＆GT; = 0）{
      HistoryItem historyItem = historyManager.buildHistoryItem（itemNumber）;
      德codeOrStoreSavedBitmap（NULL，historyItem.getResult（））;
    }
  }
}
}
 

解决方案

YOUT必须与启动CaptureActivity startActivityForResult

  startActivityForResult（新意图（这一点，CaptureActivity.class），CaptureActivity.REQUEST_ code）;
 

在Zxing与解码完成（在我的情况下，它返回它的结果的 handleResult（结果rawResult） callback-你应该叫的setResult（RESULT_OK，数据）里面CaptureActivity哪里数据 - 是您去$ C $随机附送的字符串和呼叫完成（）

  @覆盖
公共无效handleResult（结果rawResult）{
    捆绑数据=新包（）;
    args.putString（RESULT_KEY，rawResult.getText（））;
    的setResult（RESULT_OK，数据）;
    完（）;
}
 

在始于CaptureActivity你必须重写的onActivityResult（INT申请code，INT结果code，意图数据）的回调和处理得到的结果活动 - 你的情况 - 更新中TextView的：

 公共无效的onActivityResult（INT申请code，INT结果code，意图意图）{
   如果（要求code == CaptureActivity.REQUEST_ code和;＆安培;结果code == RESULT_OK）{
       youtTextView.post（新的Runnable（）{
           @覆盖
           公共无效的run（）{
               yourTextView.setText（intent.getStringExtra（RESULT_KEY））;
           }
       };
   }
}
 

I have added Zxing 3.0.1 as a library to my project I have 2 layouts: on first i have button which call CaptureActivity of Zxing library, and when CaptureActivity decode a barcode i need to put this code on a second layout into textView. How can i do this? If someone know, please write step-by-step manual, because in and Android beginner, and dont know what to code .

I must put something this part of code CaptureActivity?

public void onActivityResult(int requestCode, int resultCode, Intent intent) {
if (resultCode == RESULT_OK) {
  if (requestCode == HISTORY_REQUEST_CODE) {

    int itemNumber = intent.getIntExtra(Intents.History.ITEM_NUMBER, -1);
    if (itemNumber >= 0) {
      HistoryItem historyItem = historyManager.buildHistoryItem(itemNumber);
      decodeOrStoreSavedBitmap(null, historyItem.getResult());
    }
  }
}
}

解决方案

Yout have to start CaptureActivity with startActivityForResult:

startActivityForResult(new Intent(this, CaptureActivity.class), CaptureActivity.REQUEST_CODE);

When Zxing done with decoding (in my case it return it's result in handleResult(Result rawResult) callback- you should call setResult(RESULT_OK, data) inside CaptureActivity where data - is your decoded bundled string and call finish():

@Override
public void handleResult(Result rawResult) {
    Bundle data = new Bundle();
    args.putString(RESULT_KEY, rawResult.getText());
    setResult(RESULT_OK, data);
    finish();
}

In Activity which started CaptureActivity you have to override onActivityResult(int requestCode, int resultCode, Intent data) callback and handle getting result - in your case - update a TextView:

public void onActivityResult(int requestCode, int resultCode, Intent intent) {
   if (requestCode == CaptureActivity.REQUEST_CODE && resultCode == RESULT_OK) {
       youtTextView.post(new Runnable() {
           @Override
           public void run() {
               yourTextView.setText(intent.getStringExtra(RESULT_KEY));
           }
       };
   }
}

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