https://stackoverflow.com/questions/18124102
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RussianThe following code should work:
Inside the MainActivity, change the listener and add the method setResult:
getQuote.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View arg0) {
try {
List<String> results = new Task().execute(
setSymbol.getText().toString()).get();
setResult(results.get(0), results.get(1), results.get(2));
} catch (InterruptedException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (ExecutionException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
});
private void setResult(String fstockSymbol, String stockPrice, String fstockChangePercentage) {
symbolOut.setText(fstockSymbol);
priceOut.setText(stockPrice);
changePercentageOut.setText(fstockChangePercentage);
}
In addition you have to create an AsyncTask:
class Task extends AsyncTask<String, Void, List<String>> {
protected List<String> doInBackground(String... symbols) {
try {
URL url;
try {
url = new URL(
"http://download.finance.yahoo.com/d/quotes.csv?s="
+ symbols[0] + "&f=sl1p2");
InputStream stream = url.openStream();
BufferedInputStream bis = new BufferedInputStream(stream);
ByteArrayBuffer baf = new ByteArrayBuffer(50);
int current = 0;
while ((current = bis.read()) != -1) {
baf.append((byte) current);
}
String stockTxt = new String(baf.toByteArray());
String[] tokens = stockTxt.split(",");
String stockSymbol = tokens[0];
String stockPrice = tokens[1];
String stockChangePercentage = tokens[2];
String fstockSymbol = stockSymbol.substring(1,
stockSymbol.length() - 1);
String fstockChangePercentage = stockChangePercentage
.substring(1, stockChangePercentage.length() - 3);
List<String> results = new ArrayList<String>();
results.add(fstockSymbol);
results.add(stockPrice);
results.add(fstockChangePercentage);
return results;
} catch (MalformedURLException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
return null;
} catch (Exception e) {
e.printStackTrace();
return null;
}
}
}
You have to add some error handling.
