Ich entwickle eine App, die verwendetbarcode um die Produktinformationen von Artikeln nach dem Scannen der zu erhaltenbarcode.

Ich möchte nicht, dass der Benutzer installiertZXing barcode app separat so habe ich die eingebettetZXing Code in mein Projekt. So konnte ich die erhaltenbarcode ID number.

Ich möchte das bekommenProduktinformation mögenName, Hersteller, Preis etc mit der Barcode-Nummer mitgoogle search api zum Einkaufen.

Hier ist der Code, den ich verwendet habe

<code>public class JSONExampleActivity extends Activity {

    TextView httpStuff; 
    DefaultHttpClient client; 
    JSONObject json;  

    final static String URL = "https://www.googleapis.com/shopping/search"; 
    String upc = "/v1/public/products?country=US&q=691464717759&restrictBy=gtin=691464717759";

    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);          

        httpStuff = (TextView) findViewById(R.id.tvHttp); 
        client = new DefaultHttpClient(); 
        new Read().execute("items");                
    }

    public JSONObject products(String upc)  throws ClientProtocolException, IOException, JSONException {     
        StringBuilder url = new StringBuilder(URL); 
        url.append(upc);
        HttpGet get = new HttpGet(url.toString());     
        HttpResponse r = client.execute(get);   
        int status = r.getStatusLine().getStatusCode(); 

        if (status == 200) {
            HttpEntity e = r.getEntity();         
            String data = EntityUtils.toString(e);         
            JSONObject timeline = new JSONObject(data); 

            return timeline;    
        } 
        else {         
            Toast.makeText(JSONExampleActivity.this, "error", Toast.LENGTH_SHORT);         
            return null;  
        } 
    }  

    public class Read extends AsyncTask<String, Integer, String> {      
        @Override     
        protected String doInBackground(String... params) {         
            // TODO Auto-generated method stub         
            try {                
                json = products(upc);
                return json.getString(params[0]);         
            } catch (ClientProtocolException e) {             
                    // TODO Auto-generated catch block             
                    e.printStackTrace();        
            } catch (IOException e) {             
                    // TODO Auto-generated catch block             
                    e.printStackTrace();         
            } catch (JSONException e) {             
                    // TODO Auto-generated catch block            
                    e.printStackTrace();         
            }         
            return null;     
        }  

    @Override 
    protected void onPostExecute(String result){     
    httpStuff.setText(result);
    } 
}
</code>

Aber ich bekomme keinen Text in httpStuff.

Dies ist der Logcat:

<code>D/SntpClient(61): request time failed: java.net.SocketException: Address family not    supported by protocol
W/System.err(793): org.apache.http.conn.ConnectTimeoutException: Connect to /209.85.175.95:443 timed out
W/System.err(793):  at org.apache.http.conn.scheme.PlainSocketFactory.connectSocket(PlainSocketFactory.java:121)
W/System.err(793):  at org.apache.http.impl.conn.DefaultClientConnectionOperator.openConnection(DefaultClientConnectionOperator.java:143)
W/System.err(793):  at org.apache.http.impl.conn.AbstractPoolEntry.open(AbstractPoolEntry.java:164)
W/System.err(793):  at org.apache.http.impl.conn.AbstractPooledConnAdapter.open(AbstractPooledConnAdapter.java:119)
W/System.err(793):  at org.apache.http.impl.client.DefaultRequestDirector.execute(DefaultRequestDirector.java:359)
W/System.err(793):  at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:555)
W/System.err(793):  at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:487)
W/System.err(793):  at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:465)
W/System.err(793):  at com.android.example.jsonexample.JSONExampleActivity.products(JSONExampleActivity.java:53)
W/System.err(793):  at com.android.example.jsonexample.JSONExampleActivity$Read.doInBackground(JSONExampleActivity.java:77)
W/System.err(793):  at com.android.example.jsonexample.JSONExampleActivity$Read.doInBackground(JSONExampleActivity.java:1)
W/System.err(793):  at android.os.AsyncTask$2.call(AsyncTask.java:185)
W/System.err(793):  at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:306)
W/System.err(793):  at java.util.concurrent.FutureTask.run(FutureTask.java:138)
W/System.err(793):  at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1088)
W/System.err(793):  at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:581)
W/System.err(793):  at java.lang.Thread.run(Thread.java:1019)
D/SntpClient(61): request time failed: java.net.SocketException: Address family not supported by protocol
</code>

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