Added HeadSample to sample application, Closing android-async-http#922

Author: smarek

sample/src/main/AndroidManifest.xml

@@ -25,6 +25,7 @@
         <activity android:name=".GetSample" />
         <activity android:name=".PostSample" />
         <activity android:name=".DeleteSample" />
+        <activity android:name=".HeadSample" />
         <activity android:name=".PutSample" />
         <activity android:name=".PatchSample" />
         <activity android:name=".JsonSample" />

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

@@ -0,0 +1,59 @@
+/*
+    Copyright (c) 2015 Marek Sebera <[email protected]>
+
+    Licensed under the Apache License, Version 2.0 (the "License");
+    you may not use this file except in compliance with the License.
+    You may obtain a copy of the License at
+
+        https://www.apache.org/licenses/LICENSE-2.0
+
+    Unless required by applicable law or agreed to in writing, software
+    distributed under the License is distributed on an "AS IS" BASIS,
+    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+    See the License for the specific language governing permissions and
+    limitations under the License.
+*/
+package com.loopj.android.http.sample;
+
+import com.loopj.android.http.AsyncHttpClient;
+import com.loopj.android.http.AsyncHttpResponseHandler;
+import com.loopj.android.http.RequestHandle;
+import com.loopj.android.http.ResponseHandlerInterface;
+
+import cz.msebera.android.httpclient.Header;
+import cz.msebera.android.httpclient.HttpEntity;
+
+public class HeadSample extends FileSample {
+
+    private static final String LOG_TAG = "HeadSample";
+
+    @Override
+    public ResponseHandlerInterface getResponseHandler() {
+        return new AsyncHttpResponseHandler() {
+            @Override
+            public void onSuccess(int statusCode, Header[] headers, byte[] responseBody) {
+                debugStatusCode(LOG_TAG, statusCode);
+                debugHeaders(LOG_TAG, headers);
+                debugResponse(LOG_TAG, String.format("Response of size: %d", responseBody == null ? 0 : responseBody.length));
+            }
+
+            @Override
+            public void onProgress(long bytesWritten, long totalSize) {
+                addView(getColoredView(LIGHTRED, String.format("Progress %d from %d", bytesWritten, totalSize)));
+            }
+
+            @Override
+            public void onFailure(int statusCode, Header[] headers, byte[] responseBody, Throwable throwable) {
+                debugStatusCode(LOG_TAG, statusCode);
+                debugHeaders(LOG_TAG, headers);
+                debugThrowable(LOG_TAG, throwable);
+                debugResponse(LOG_TAG, String.format("Response of size: %d", responseBody == null ? 0 : responseBody.length));
+            }
+        };
+    }
+
+    @Override
+    public RequestHandle executeSample(AsyncHttpClient client, String URL, Header[] headers, HttpEntity entity, ResponseHandlerInterface responseHandler) {
+        return client.head(this, URL, headers, null, responseHandler);
+    }
+}

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

@@ -36,6 +36,7 @@ public class WaypointsActivity extends ListActivity {
             new SampleConfig(R.string.title_delete_sample, DeleteSample.class),
             new SampleConfig(R.string.title_put_sample, PutSample.class),
             new SampleConfig(R.string.title_patch_sample, PatchSample.class),
+            new SampleConfig(R.string.title_head_sample, HeadSample.class),
             new SampleConfig(R.string.title_json_sample, JsonSample.class),
             new SampleConfig(R.string.title_json_streamer_sample, JsonStreamerSample.class),
             new SampleConfig(R.string.title_sax_example, SaxSample.class),

sample/src/main/res/values/strings.xml

@@ -23,6 +23,7 @@
     <string name="title_post_sample">POST</string>
     <string name="title_put_sample">PUT</string>
     <string name="title_patch_sample">PATCH</string>
+    <string name="title_head_sample">HEAD</string>
     <string name="title_delete_sample">DELETE</string>
     <string name="title_file_sample">GET to File</string>
     <string name="title_directory_sample">GET to Directory</string>