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POI'm using AsyncTask and getting threading errors
 

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  1. POI'm using AsyncTask and getting threading errors
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    <p>I'm making a request to the Yelp API through an AsyncTask innerclass. When I try to print the result in onPostExecute() i get errors. Heres my code:</p> <pre><code>public class MainActivity extends Activity { Yelp yelp = new yelp(....); yelp.execute(); public class Yelp extends AsyncTask&lt;String,Void,Response&gt; { double _long = 1; double _lat= 1; String _term = "sushi"; OAuthService service; Token accessToken; public Yelp(String consumerKey, String consumerSecret, String token, String tokenSecret) { this.service = new ServiceBuilder().provider(YelpApi2.class).apiKey(consumerKey).apiSecret(consumerSecret).build(); this.accessToken = new Token(token, tokenSecret); } @Override protected void onPostExecute(Response re) { try{ System.out.println(re.getBody()); } catch(Exception e){ e.printStackTrace(); } } @Override protected Response doInBackground(String... params) { OAuthRequest request = new OAuthRequest(Verb.GET, "http://api.yelp.com/v2/search"); request.addQuerystringParameter("term", _term); request.addQuerystringParameter("ll", _lat + "," + _long); this.service.signRequest(this.accessToken, request); Response r = request.send(); return r; } } } </code></pre> <p>And my error msgs:</p> <pre><code>10-26 10:55:45.630: W/System.err(1060): android.os.NetworkOnMainThreadException 10-26 10:55:45.640: W/System.err(1060): at android.os.StrictMode$AndroidBlockGuardPolicy.onNetwork(StrictMode.java:1117) 10-26 10:55:45.640: W/System.err(1060): at libcore.io.BlockGuardOs.recvfrom(BlockGuardOs.java:163) 10-26 10:55:45.640: W/System.err(1060): at libcore.io.IoBridge.recvfrom(IoBridge.java:513) 10-26 10:55:45.640: W/System.err(1060): at java.net.PlainSocketImpl.read(PlainSocketImpl.java:488) 10-26 10:55:45.640: W/System.err(1060): at java.net.PlainSocketImpl.access$000(PlainSocketImpl.java:46) 10-26 10:55:45.651: W/System.err(1060): at java.net.PlainSocketImpl$PlainSocketInputStream.read(PlainSocketImpl.java:240) 10-26 10:55:45.651: W/System.err(1060): at java.io.BufferedInputStream.read(BufferedInputStream.java:304) 10-26 10:55:45.651: W/System.err(1060): at libcore.net.http.FixedLengthInputStream.read(FixedLengthInputStream.java:45) 10-26 10:55:45.651: W/System.err(1060): at java.io.InputStreamReader.read(InputStreamReader.java:244) 10-26 10:55:45.651: W/System.err(1060): at org.scribe.utils.StreamUtils.getStreamContents(StreamUtils.java:29) 10-26 10:55:45.651: W/System.err(1060): at org.scribe.model.Response.parseBodyContents(Response.java:40) 10-26 10:55:45.651: W/System.err(1060): at org.scribe.model.Response.getBody(Response.java:66) 10-26 10:55:45.660: W/System.err(1060): at com.example.first.MainActivity$Yelp.onPostExecute(MainActivity.java:109) 10-26 10:55:45.670: W/System.err(1060): at com.example.first.MainActivity$Yelp.onPostExecute(MainActivity.java:1) 10-26 10:55:45.670: W/System.err(1060): at android.os.AsyncTask.finish(AsyncTask.java:631) 10-26 10:55:45.670: W/System.err(1060): at android.os.AsyncTask.access$600(AsyncTask.java:177) 10-26 10:55:45.670: W/System.err(1060): at android.os.AsyncTask$InternalHandler.handleMessage(AsyncTask.java:644) 10-26 10:55:45.681: W/System.err(1060): at android.os.Handler.dispatchMessage(Handler.java:99) 10-26 10:55:45.690: W/System.err(1060): at android.os.Looper.loop(Looper.java:137) 10-26 10:55:45.690: W/System.err(1060): at android.app.ActivityThread.main(ActivityThread.java:4745) 10-26 10:55:45.710: W/System.err(1060): at java.lang.reflect.Method.invokeNative(Native Method) 10-26 10:55:45.710: W/System.err(1060): at java.lang.reflect.Method.invoke(Method.java:511) 10-26 10:55:45.720: W/System.err(1060): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:786) 10-26 10:55:45.720: W/System.err(1060): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:553) 10-26 10:55:45.730: W/System.err(1060): at dalvik.system.NativeStart.main(Native Method) 10-26 10:59:03.251: D/testtt(1109): BUS3333333TEDDDD 10-26 10:59:03.351: D/ddd(1109): BUSTEDDDD 10-26 10:59:03.521: D/gralloc_goldfish(1109): Emulator without GPU emulation detected. 10-26 10:59:05.431: D/dalvikvm(1109): GC_FOR_ALLOC freed 174K, 4% free 8126K/8391K, paused 53ms, total 56ms 10-26 10:59:05.440: W/System.err(1109): android.os.NetworkOnMainThreadException 10-26 10:59:05.451: W/System.err(1109): at android.os.StrictMode$AndroidBlockGuardPolicy.onNetwork(StrictMode.java:1117) 10-26 10:59:05.451: W/System.err(1109): at libcore.io.BlockGuardOs.recvfrom(BlockGuardOs.java:163) 10-26 10:59:05.451: W/System.err(1109): at libcore.io.IoBridge.recvfrom(IoBridge.java:513) 10-26 10:59:05.461: W/System.err(1109): at java.net.PlainSocketImpl.read(PlainSocketImpl.java:488) 10-26 10:59:05.461: W/System.err(1109): at java.net.PlainSocketImpl.access$000(PlainSocketImpl.java:46) 10-26 10:59:05.471: W/System.err(1109): at java.net.PlainSocketImpl$PlainSocketInputStream.read(PlainSocketImpl.java:240) 10-26 10:59:05.471: W/System.err(1109): at java.io.BufferedInputStream.read(BufferedInputStream.java:304) 10-26 10:59:05.471: W/System.err(1109): at libcore.net.http.FixedLengthInputStream.read(FixedLengthInputStream.java:45) 10-26 10:59:05.481: W/System.err(1109): at java.io.InputStreamReader.read(InputStreamReader.java:244) 10-26 10:59:05.481: W/System.err(1109): at org.scribe.utils.StreamUtils.getStreamContents(StreamUtils.java:29) 10-26 10:59:05.481: W/System.err(1109): at org.scribe.model.Response.parseBodyContents(Response.java:40) 10-26 10:59:05.492: W/System.err(1109): at org.scribe.model.Response.getBody(Response.java:66) 10-26 10:59:05.492: W/System.err(1109): at com.example.first.MainActivity$Yelp.onPostExecute(MainActivity.java:104) 10-26 10:59:05.492: W/System.err(1109): at com.example.first.MainActivity$Yelp.onPostExecute(MainActivity.java:1) 10-26 10:59:05.501: W/System.err(1109): at android.os.AsyncTask.finish(AsyncTask.java:631) 10-26 10:59:05.501: W/System.err(1109): at android.os.AsyncTask.access$600(AsyncTask.java:177) 10-26 10:59:05.501: W/System.err(1109): at android.os.AsyncTask$InternalHandler.handleMessage(AsyncTask.java:644) 10-26 10:59:05.501: W/System.err(1109): at android.os.Handler.dispatchMessage(Handler.java:99) 10-26 10:59:05.511: W/System.err(1109): at android.os.Looper.loop(Looper.java:137) 10-26 10:59:05.511: W/System.err(1109): at android.app.ActivityThread.main(ActivityThread.java:4745) 10-26 10:59:05.521: W/System.err(1109): at java.lang.reflect.Method.invokeNative(Native Method) 10-26 10:59:05.521: W/System.err(1109): at java.lang.reflect.Method.invoke(Method.java:511) 10-26 10:59:05.521: W/System.err(1109): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:786) 10-26 10:59:05.521: W/System.err(1109): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:553) 10-26 10:59:05.531: W/System.err(1109): at dalvik.system.NativeStart.main(Native Method) </code></pre>
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    1. COi assume this public Yelp(String consumerKey, String consumerSecret, String token, String tokenSecret) { this.service = new ServiceBuilder().provider(YelpApi2.class).apiKey(consumerKey).apiSecret(consumerSecret).build(); this.accessToken = new Token(token, tokenSecret); } makes http requests
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    2. COWell is the error about "Emulator without GPU emulation detected." fixed? Are you running this on the proper emulator. That could cause errors
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