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POImplemented Async Task - App Force Closes when attempting to Parse Data (async task not executing?)
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  1. POImplemented Async Task - App Force Closes when attempting to Parse Data (async task not executing?)
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    copied!<p>I'm very new to this - I added some source code to implement AsyncTask but it's still force closing due to running on the IO thread instead of implementing AsyncTask. I know I'm doing something incorrect but I'm not sure what it might be. </p> <p>JAVA:</p> <pre><code>import java.io.IOException; import org.apache.http.client.ClientProtocolException; import java.util.ArrayList; import android.os.AsyncTask; import java.util.List; import org.apache.http.client.HttpClient; import org.apache.http.client.methods.HttpPost; import org.apache.http.impl.client.DefaultHttpClient; import org.apache.http.NameValuePair; import org.apache.http.client.entity.UrlEncodedFormEntity; import org.apache.http.message.BasicNameValuePair; // import everything you need import android.app.Activity; import android.os.Bundle; import android.view.View; import android.widget.Button; import android.widget.EditText; import android.widget.Toast; public class DeviceConfig extends Activity { AsyncTask&lt;Object, Object, Object&gt; saveContactTask = new AsyncTask&lt;Object, Object, Object&gt;() { @Override protected Object doInBackground(Object... params) { return null; } @Override protected void onPostExecute(Object result) { finish(); } }; Button sendButton; EditText msgTextField; /** Called when the activity is first created. */ @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); // load the layout setContentView(R.layout.deviceconfig); // make message text field object msgTextField = (EditText) findViewById(R.id.msgTextField); // make send button object sendButton = (Button) findViewById(R.id.sendButton); } // this is the function that gets called when you click the button public void send(View v) { // get the message from the message text box String msg = msgTextField.getText().toString(); // make sure the fields are not empty if (msg.length()&gt;0) { HttpClient httpclient = new DefaultHttpClient(); HttpPost httppost = new HttpPost("http://gamedemo.hostzi.com/test.php"); try { List&lt;NameValuePair&gt; nameValuePairs = new ArrayList&lt;NameValuePair&gt;(2); nameValuePairs.add(new BasicNameValuePair("id", "12345")); nameValuePairs.add(new BasicNameValuePair("message", msg)); httppost.setEntity(new UrlEncodedFormEntity(nameValuePairs)); httpclient.execute(httppost); msgTextField.setText(""); // clear text box } catch (ClientProtocolException e) { // TODO Auto-generated catch block } catch (IOException e) { // TODO Auto-generated catch block } } else { // display message if text fields are empty Toast.makeText(getBaseContext(),"All field are required",Toast.LENGTH_SHORT).show(); } } } </code></pre> <p>XML:</p> <pre><code>&lt;?xml version="1.0" encoding="utf-8"?&gt; &lt;LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:orientation="vertical" android:layout_width="fill_parent" android:layout_height="fill_parent" &gt; &lt;TextView android:text="Message" android:layout_width="fill_parent" android:layout_height="wrap_content" /&gt; &lt;EditText android:id="@+id/msgTextField" android:layout_width="fill_parent" android:layout_height="wrap_content" /&gt; &lt;Button android:text="Send" android:id="@+id/sendButton" android:layout_width="fill_parent" android:layout_height="wrap_content" android:onClick="send" /&gt; &lt;/LinearLayout&gt; </code></pre> <p>PHP:</p> <pre><code>&lt;?php // get the "message" variable from the post request // this is the data coming from the Android app $message=$_POST["message"]; // specify the file where we will save the contents of the variable message $filename="androidmessages.html"; // write (append) the data to the file file_put_contents($filename,$message."&lt;br /&gt;",FILE_APPEND); // load the contents of the file to a variable $androidmessages=file_get_contents($filename); // display the contents of the variable (which has the contents of the file) echo $androidmessages; ?&gt; </code></pre> <p>LOGCAT:</p> <pre><code> 03-27 16:07:05.795: D/dalvikvm(11620): Late-enabling CheckJNI 03-27 16:07:05.935: D/dalvikvm(11620): GC_FOR_ALLOC freed 88K, 3% free 7355K/7568K, paused 18ms, total 19ms 03-27 16:07:05.945: I/dalvikvm-heap(11620): Grow heap (frag case) to 10.818MB for 3686416-byte allocation 03-27 16:07:05.975: D/dalvikvm(11620): GC_FOR_ALLOC freed 1K, 2% free 10953K/11172K, paused 25ms, total 25ms 03-27 16:07:05.995: D/dalvikvm(11620): GC_CONCURRENT freed &lt;1K, 2% free 10953K/11172K, paused 3ms+2ms, total 18ms 03-27 16:07:06.285: D/dalvikvm(11620): GC_FOR_ALLOC freed &lt;1K, 2% free 10953K/11172K, paused 15ms, total 16ms 03-27 16:07:06.305: I/dalvikvm-heap(11620): Grow heap (frag case) to 17.043MB for 6529744-byte allocation 03-27 16:07:06.315: D/dalvikvm(11620): GC_FOR_ALLOC freed 0K, 2% free 17330K/17552K, paused 16ms, total 16ms 03-27 16:07:06.335: D/dalvikvm(11620): GC_CONCURRENT freed &lt;1K, 2% free 17330K/17552K, paused 3ms+2ms, total 21ms 03-27 16:07:06.435: D/libEGL(11620): loaded /system/lib/egl/libEGL_tegra.so 03-27 16:07:06.455: D/libEGL(11620): loaded /system/lib/egl/libGLESv1_CM_tegra.so 03-27 16:07:06.465: D/libEGL(11620): loaded /system/lib/egl/libGLESv2_tegra.so 03-27 16:07:06.485: D/OpenGLRenderer(11620): Enabling debug mode 0 03-27 16:07:19.615: W/IInputConnectionWrapper(11620): showStatusIcon on inactive InputConnection 03-27 16:07:45.695: D/AndroidRuntime(11620): Shutting down VM 03-27 16:07:45.695: W/dalvikvm(11620): threadid=1: thread exiting with uncaught exception (group=0x41cd2930) 03-27 16:07:45.695: E/AndroidRuntime(11620): FATAL EXCEPTION: main 03-27 16:07:45.695: E/AndroidRuntime(11620): java.lang.IllegalStateException: Could not execute method of the activity 03-27 16:07:45.695: E/AndroidRuntime(11620): at android.view.View$1.onClick(View.java:3599) 03-27 16:07:45.695: E/AndroidRuntime(11620): at android.view.View.performClick(View.java:4204) 03-27 16:07:45.695: E/AndroidRuntime(11620): at android.view.View$PerformClick.run(View.java:17355) 03-27 16:07:45.695: E/AndroidRuntime(11620): at android.os.Handler.handleCallback(Handler.java:725) 03-27 16:07:45.695: E/AndroidRuntime(11620): at android.os.Handler.dispatchMessage(Handler.java:92) 03-27 16:07:45.695: E/AndroidRuntime(11620): at android.os.Looper.loop(Looper.java:137) 03-27 16:07:45.695: E/AndroidRuntime(11620): at android.app.ActivityThread.main(ActivityThread.java:5041) 03-27 16:07:45.695: E/AndroidRuntime(11620): at java.lang.reflect.Method.invokeNative(Native Method) 03-27 16:07:45.695: E/AndroidRuntime(11620): at java.lang.reflect.Method.invoke(Method.java:511) 03-27 16:07:45.695: E/AndroidRuntime(11620): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:793) 03-27 16:07:45.695: E/AndroidRuntime(11620): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:560) 03-27 16:07:45.695: E/AndroidRuntime(11620): at dalvik.system.NativeStart.main(Native Method) 03-27 16:07:45.695: E/AndroidRuntime(11620): Caused by: java.lang.reflect.InvocationTargetException 03-27 16:07:45.695: E/AndroidRuntime(11620): at java.lang.reflect.Method.invokeNative(Native Method) 03-27 16:07:45.695: E/AndroidRuntime(11620): at java.lang.reflect.Method.invoke(Method.java:511) 03-27 16:07:45.695: E/AndroidRuntime(11620): at android.view.View$1.onClick(View.java:3594) 03-27 16:07:45.695: E/AndroidRuntime(11620): ... 11 more 03-27 16:07:45.695: E/AndroidRuntime(11620): Caused by: android.os.NetworkOnMainThreadException 03-27 16:07:45.695: E/AndroidRuntime(11620): at android.os.StrictMode$AndroidBlockGuardPolicy.onNetwork(StrictMode.java:1117) 03-27 16:07:45.695: E/AndroidRuntime(11620): at java.net.InetAddress.lookupHostByName(InetAddress.java:385) 03-27 16:07:45.695: E/AndroidRuntime(11620): at java.net.InetAddress.getAllByNameImpl(InetAddress.java:236) 03-27 16:07:45.695: E/AndroidRuntime(11620): at java.net.InetAddress.getAllByName(InetAddress.java:214) 03-27 16:07:45.695: E/AndroidRuntime(11620): at org.apache.http.impl.conn.DefaultClientConnectionOperator.openConnection(DefaultClientConnectionOperator.java:137) 03-27 16:07:45.695: E/AndroidRuntime(11620): at org.apache.http.impl.conn.AbstractPoolEntry.open(AbstractPoolEntry.java:164) 03-27 16:07:45.695: E/AndroidRuntime(11620): at org.apache.http.impl.conn.AbstractPooledConnAdapter.open(AbstractPooledConnAdapter.java:119) 03-27 16:07:45.695: E/AndroidRuntime(11620): at org.apache.http.impl.client.DefaultRequestDirector.execute(DefaultRequestDirector.java:360) 03-27 16:07:45.695: E/AndroidRuntime(11620): at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:555) 03-27 16:07:45.695: E/AndroidRuntime(11620): at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:487) 03-27 16:07:45.695: E/AndroidRuntime(11620): at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:465) 03-27 16:07:45.695: E/AndroidRuntime(11620): at com.nfc.linkingmanager.DeviceConfig.send(DeviceConfig.java:84) 03-27 16:07:45.695: E/AndroidRuntime(11620): ... 14 more </code></pre>
 

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