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POAndroid - Could not find a method playaudio(View) in the activity class android.app.application
 

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  1. POAndroid - Could not find a method playaudio(View) in the activity class android.app.application
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    <p>I am blocked for hours now, I am trying to handle a button click inside a listview using the xml onClick attribute.</p> <p>Here is my result.xml:</p> <pre><code>&lt;?xml version="1.0" encoding="utf-8"?&gt; &lt;RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" android:orientation="vertical" android:layout_width="fill_parent" android:layout_height="fill_parent" android:padding="5dp"&gt; &lt;TextView android:id="@+id/url" android:layout_width="0dp" android:layout_height="0dp" android:visibility="gone"/&gt; &lt;TextView android:id="@+id/title" style="@android:style/TextAppearance.Large" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_alignParentLeft="true" android:layout_toLeftOf="@+id/play" android:singleLine="true" android:text="title" android:textColor="#000000" /&gt; &lt;TextView android:id="@+id/artist" style="@android:style/TextAppearance.Small" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_alignParentLeft="true" android:layout_below="@id/title" android:layout_toLeftOf="@+id/play" android:singleLine="true" android:text="artist" android:textColor="#7D7D7D" /&gt; &lt;TextView android:id="@+id/duration" style="@android:style/TextAppearance.Small" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_alignLeft="@+id/artist" android:layout_alignParentBottom="true" android:layout_below="@id/artist" android:layout_toLeftOf="@+id/play" android:singleLine="true" android:text="03:24" android:textColor="#7D7D7D" /&gt; &lt;ImageButton android:id="@+id/play" android:layout_width="wrap_content" android:layout_height="fill_parent" android:layout_toLeftOf="@+id/download" android:src="@drawable/play" android:onClick="playAudio" /&gt; &lt;ImageButton android:id="@+id/download" android:layout_width="wrap_content" android:layout_height="fill_parent" android:layout_alignParentRight="true" android:src="@drawable/download" /&gt; &lt;/RelativeLayout&gt; </code></pre> <p>here is my search.java file</p> <pre><code> package com.example.testxxx; import java.io.BufferedReader; import java.io.IOException; import java.io.InputStream; import java.io.InputStreamReader; import java.io.UnsupportedEncodingException; import java.net.URLEncoder; import java.util.ArrayList; import java.util.HashMap; import java.util.List; import java.util.Map; import org.apache.http.HttpResponse; import org.apache.http.client.HttpClient; import org.apache.http.client.methods.HttpGet; import org.apache.http.impl.client.DefaultHttpClient; import org.json.JSONArray; import org.json.JSONException; import org.json.JSONObject; import android.app.ListActivity; import android.app.SearchManager; import android.content.Context; import android.content.Intent; import android.graphics.Color; import android.net.ConnectivityManager; import android.net.NetworkInfo; import android.os.AsyncTask; import android.os.Bundle; import android.util.Log; import android.view.View; import android.widget.Button; import android.widget.LinearLayout; import android.widget.ListView; import android.widget.SimpleAdapter; import android.widget.TextView; import android.widget.Toast; public class Search extends ListActivity { private TextView mTextView; private ListView mListView; private String query; private String queryencoded; private static Context mContext; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.search); mTextView = (TextView) findViewById(R.id.text); mListView = (ListView) findViewById(android.R.id.list); mContext = getApplicationContext(); // Get the intent, verify the action and get the query Intent intent = getIntent(); if (Intent.ACTION_SEARCH.equals(intent.getAction())) { query = intent.getStringExtra(SearchManager.QUERY); try { queryencoded = URLEncoder.encode(query, "utf-8"); } catch (UnsupportedEncodingException e) { // TODO Auto-generated catch block e.printStackTrace(); } Log.w("myApp", "aaaaa"); Toast.makeText(Search.this, (query), Toast.LENGTH_LONG).show(); mTextView.setText("testing connexion"); if(isConnected()){ mTextView.setText("Loading..."); new HttpAsyncTask().execute("url to json"); } else{ mTextView.setBackgroundColor(0xffcc0000); mTextView.setText("You are NOT connected"); } } } public boolean isConnected(){ ConnectivityManager connMgr = (ConnectivityManager) getSystemService(this.CONNECTIVITY_SERVICE); NetworkInfo networkInfo = connMgr.getActiveNetworkInfo(); if (networkInfo != null &amp;&amp; networkInfo.isConnected()) return true; else return false; } public static String GET(String url){ InputStream inputStream = null; String result = ""; try { // create HttpClient HttpClient httpclient = new DefaultHttpClient(); // make GET request to the given URL HttpResponse httpResponse = httpclient.execute(new HttpGet(url)); // receive response as inputStream inputStream = httpResponse.getEntity().getContent(); // convert inputstream to string if(inputStream != null) result = convertInputStreamToString(inputStream); else result = "Did not work!"; } catch (Exception e) { Log.d("InputStream", e.getLocalizedMessage()); } return result; } private static String convertInputStreamToString(InputStream inputStream) throws IOException{ BufferedReader bufferedReader = new BufferedReader( new InputStreamReader(inputStream)); String line = ""; String result = ""; while((line = bufferedReader.readLine()) != null) result += line; inputStream.close(); return result; } private class HttpAsyncTask extends AsyncTask&lt;String, Void, String&gt; { @Override protected String doInBackground(String... urls) { return GET(urls[0]); } // onPostExecute displays the results of the AsyncTask. @Override protected void onPostExecute(String result) { Toast.makeText(getBaseContext(), "Received!", Toast.LENGTH_LONG).show(); try { JSONObject jsonobject = new JSONObject(result); mTextView.setText((String) jsonobject.get("count")); Integer count = Integer.parseInt((String) jsonobject.get("count")); if (count == 0) { // There are no results mTextView.setText(getString(R.string.no_results, query)); } else { // Display the number of results String countString = getResources().getQuantityString(R.plurals.search_results, count, new Object[] {count, query}); mTextView.setText(countString); // Specify the columns we want to display in the result String[] from = new String[] { "title", "artist", "duration", "url"}; // Specify the corresponding layout elements where we want the columns to go int[] to = new int[] { R.id.title, R.id.artist, R.id.duration, R.id.url}; // -- container for all of our list items List&lt;Map&lt;String, String&gt;&gt; groupData = new ArrayList&lt;Map&lt;String, String&gt;&gt;(); // -- list item hash re-used Map&lt;String, String&gt; group; //create audio json array JSONArray audios = jsonobject.getJSONArray("audio"); for (int i = 0; i &lt; audios.length(); i++) { JSONObject audio = audios.getJSONObject(i); //get info String title = audio.getString("title"); String artist = audio.getString("artist"); String duration = audio.getString("duration"); String durationformated = getDurationString(Integer.parseInt(duration)); String url = audio.getString("url"); // -- create record group = new HashMap&lt;String, String&gt;(); group.put( "title", title ); group.put( "artist", artist ); group.put( "duration", durationformated ); group.put( "url", url ); groupData.add(group); } SimpleAdapter adapter = new SimpleAdapter(mContext , groupData, R.layout.result, from, to ); setListAdapter( adapter ); } } catch (JSONException e) { // TODO Auto-generated catch block Log.w("myApp", e); } } public void playAudio(View v) { //get the row the clicked button is in LinearLayout vwParentRow = (LinearLayout)v.getParent(); TextView urlview = (TextView)vwParentRow.findViewById(R.id.url); String url = (String) urlview.getText(); Toast.makeText(mContext, (url), Toast.LENGTH_LONG).show(); } } private String getDurationString(int seconds) { int hours = seconds / 3600; int minutes = (seconds % 3600) / 60; seconds = seconds % 60; return twoDigitString(minutes) + ":" + twoDigitString(seconds); } private String twoDigitString(int number) { if (number == 0) { return "00"; } if (number / 10 == 0) { return "0" + number; } return String.valueOf(number); } } </code></pre> <p>this is the error I get</p> <pre><code> 02-10 20:00:31.995: E/AndroidRuntime(19483): java.lang.IllegalStateException: Could not find a method playAudio(View) in the activity class android.app.Application for onClick handler on view class android.widget.ImageButton with id 'play' </code></pre> <p>I have tried to place the playAudio method inside the Search class, inside the HttpAsyncTask and inside the MainActivity class, nothing is working I still have the same error.</p> <p>I'm also wondering why is the error referencing to the android.app.application class as the layout is from Search > HttpAsyncTask </p> <p>Maybe this is the cause of the error, but then what could I do to fix it?</p> <p>Thank you much :)</p>
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