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POConnect to a MySQL database
 

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    <p>I'm trying to connect to a MySQL database to display some information in a TextView. I've been trying to by this tutorial, but I have been struggling. My PHP should be fine. My concern is with handling the data. I'm more familiar with C# than Java so that may be where my confusion begins.</p> <p>Here is what I have so far:</p> <pre><code> package shc_BalloonSat.namespace; import java.io.BufferedReader; import java.io.InputStream; import java.io.InputStreamReader; import java.util.ArrayList; import android.app.Activity; import android.os.Bundle; import android.util.Log; import android.widget.TextView; import org.apache.http.HttpEntity; import org.apache.http.HttpResponse; import org.apache.http.NameValuePair; import org.apache.http.client.HttpClient; import org.apache.http.client.methods.HttpPost; import org.apache.http.impl.client.DefaultHttpClient; //import android.view.View; import org.json.JSONArray; import org.json.JSONException; public class Shc_BalloonSat_Activity extends Activity { int historyCountFromUser; /** Called when the activity is first created. */ public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); assignInfoToInfoTextView(); assignInfoToHistoryTextView(); } public void assignInfoToInfoTextView() { connect2DB(); JSONArray jArray = new JSONArray(result); TextView infoTV = (TextView)this.findViewById(R.id.info); String infoText = "Last Known Altitude: " + /*put db info here*/ /*+*/ "\n"; infoText += "Last Known Speed: " + /*put db info here*/ /*+*/ "\n"; infoText += "Last Known Latitude:" + /*put db info here*/ /*+*/ "\n"; infoText += "Last Known Longtitude: " + /*put db info here*/ /*+*/ "\n"; infoTV.setText(infoText); } public void assignInfoToHistoryTextView() { connect2DB(); JSONArray jArray = new JSONArray(result); for (int count = 0; count &lt;= 4; count++) { TextView historyTV = (TextView)this.findViewById(R.id.history); String historyText = "Altitude: " + /*put db info here*/ /*+*/ "\n"; historyText += "Speed: " + /*put db info here*/ /*+*/ "\n"; historyText += "Latitude:" + /*put db info here*/ /*+*/ "\n"; historyText += "Longtitude: " + /*put db info here*/ /*+*/ "\n\n"; historyTV.append(historyText); } } @SuppressWarnings("null") public void connect2DB() { String result = ""; ArrayList&lt;NameValuePair&gt; nameValuePairs = new ArrayList&lt;NameValuePair&gt;(); // Get data from database using HTTP Post try { HttpClient httpclient = new DefaultHttpClient(); HttpPost httppost = new HttpPost("\* link to php file goes here */"); httppost.setEntity(newUrlEncodedFormEntity(nameValuePairs)); HttpResponse response = httpclient.execute(httppost); HttpEntity entity = new response.getEntity(); InputStream is = entity.getContent(); } catch (Exception e) { Log.e("log_tag", "Error in HTTP connection "); } // Convert the data to a string that the phone can read try { InputStream is = null; BufferedReader reader = new BufferedReader(new InputStreamReader(is, "iso-8859-1"), 8); StringBuilder sb = new StringBuilder(); String line = null; while ((line = reader.readLine()) != null) { sb.append(line + "\n"); } is.close(); result = sb.toString(); } catch (Exception e) { Log.e("log_tag", "Error converting result "); } // Parse data catch (JSONException e) { Log.e("log_tag", "Error parsing data "+e.toString()); } } private HttpEntity newUrlEncodedFormEntity( ArrayList&lt;NameValuePair&gt; nameValuePairs) { // TODO Auto-generated method stub return null; } } </code></pre> <p>My query pulls the last 5 entries from the database. I'm wanting the very last one to go in the regular funcition and all the other 4 to go in the history function but in a descending order that way they are organized from newest entry to oldest. Does it look like I'm going about this the right way?</p>
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    1. UStylerbhughes
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Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

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