得到zxing数据进入刷卡视图片段 [英] get zxing data into swipe view fragment

问题描述

我正在使用viewpager标签的片段zxing。我可以打电话给zxing意图和读取QR code，但我不能让导致到的EditText。

I am using zxing in a fragment of viewpager tab. I can call zxing with Intent and read the QR code but I can't get result to a edittext.

这是我创造FragmentPagerAdapter标签：

This is where i create tab in FragmentPagerAdapter:

@Override
    public Fragment getItem(int i) {
        switch (i) {
        case 0:
            return new Tab1();
        case 1:
            return new Tab2();
        default:
            return new EmptyTab();
        }
    }

和我的 TAB1 类：

public class Tab1 extends Fragment {
@Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container,
            Bundle savedInstanceState) {
        View rootView = inflater.inflate(R.layout.tab_1, container, false);
        IDEditText = (EditText) rootView.findViewById(R.id.fttx_id_editText);

        Button scanBarcode = (Button) rootView.findViewById(R.id.scan_barcode);

        scanBarcode.setOnClickListener(new OnClickListener() {
            @Override
            public void onClick(View v) {
                IntentIntegrator scanIntegrator = new IntentIntegrator(getActivity);
                scanIntegrator.initiateScan();
            }
        });

        return rootView;
    }



    @Override
    public void onActivityResult(int requestCode, int resultCode, Intent intent) {
        // retrieve scan result
        IntentResult scanningResult = IntentIntegrator.parseActivityResult(
                requestCode, resultCode, intent);
        if (scanningResult != null) {
            // we have a result
            String scanContent = scanningResult.getContents();
            IDEditText .setText("CONTENT: " + scanContent);
        } else {
            Toast.makeText(getActivity(),
                    "No scan data received!", Toast.LENGTH_SHORT).show();
        }
    }

zxing启动;然后读取;然后结束;但没有扫描数据：我觉得'的onActivityResult'永远不会发生：（

zxing starts; then reads; then ends; but with no scan data: I think 'onActivityResult' never starts :(

我如何可以使用zxing在这个片段？

How can i use zxing in this fragment?

推荐答案

IntentIntegrator 有另一个构造函数，取片段。相反的：

IntentIntegrator has another constructor, taking the Fragment. Instead of:

scanBarcode.setOnClickListener(new OnClickListener() {
    @Override
    public void onClick(View v) {
        IntentIntegrator scanIntegrator = new IntentIntegrator(getActivity());
        scanIntegrator.initiateScan();
    }
});

您可以使用：

scanBarcode.setOnClickListener(new OnClickListener() {
    @Override
    public void onClick(View v) {
        IntentIntegrator scanIntegrator = new IntentIntegrator(Tab1.this);
        scanIntegrator.initiateScan();
    }
});

和它应该调用的onActivityResult 的片段直接。

and it should invoke onActivityResult for the Fragment directly.

表示从一个活动，并从一个片段开始的意图，在安装有杆code扫描器二者的工作使用一个例子，是体现在这个GitHub库。

An example showing working usage of both starting the intent from an Activity and from a Fragment, with the barcode scanner installed, is demonstrated in this GitHub repo.

如果您使用的是V4支持库碎片，<一个href=\"https://$c$c.google.com/p/zxing/source/browse/trunk/android-integration/src/com/google/zxing/integration/android/IntentIntegratorSupportV4.java?r=2122\"相对=nofollow> IntentIntegratorSupportV4 类提供兼容性：

If you are using the v4 support library Fragments, the IntentIntegratorSupportV4 class provides compatibility:

IntentIntegrator scanIntegrator = new IntentIntegratorSupportV4(Tab1.this);

这篇关于得到zxing数据进入刷卡视图片段的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！