Added logging to RequestHandle cancelling

Author: smarek

sample/src/main/java/com/loopj/android/http/sample/CancelRequestHandleSample.java

@@ -1,20 +1,30 @@
 package com.loopj.android.http.sample;
 
+import android.util.Log;
+
 import com.loopj.android.http.RequestHandle;
 
 public class CancelRequestHandleSample extends ThreadingTimeoutSample {
 
+    private static final String LOG_TAG = "ThreadingTimeoutSample";
+
     @Override
     public int getSampleTitle() {
         return R.string.title_cancel_handle;
     }
 
     @Override
     public void onCancelButtonPressed() {
+        Log.d(LOG_TAG, String.format("Number of handles found: %d", getRequestHandles().size()));
+        int counter = 0;
         for (RequestHandle handle : getRequestHandles()) {
             if (!handle.isCancelled() && !handle.isFinished()) {
-                handle.cancel(true);
+                Log.d(LOG_TAG, String.format("Cancelling handle %d", counter));
+                Log.d(LOG_TAG, String.format("Handle %d cancel", counter) + (handle.cancel(true) ? " succeeded" : " failed"));
+            } else {
+                Log.d(LOG_TAG, String.format("Handle %d already non-cancellable", counter));
             }
+            counter++;
         }
     }
 }