I’m trying to load a remote file and I have to use HttpClient.execute which always throws an error. Any ideas?
Function I’m using:
private void loadCol3(Map.Entry<String, String> map) {
LinearLayout col3 = (LinearLayout)findViewById(R.id.col3);
String result = null;
col3.removeAllViews();
Log.d(TAG, "start load col 3");
HttpClient httpclient = new DefaultHttpClient();
HttpGet request = new HttpGet("http://video.foxbusiness.com/v/feed/playlist/"+map.getValue()+".js?template=fox&callback=?");
ResponseHandler<String> handler = new BasicResponseHandler();
try {
result = httpclient.execute(request, handler);
} catch (Exception e) {
Log.d(TAG, "httpclient.execute failed");
e.printStackTrace();
}
httpclient.getConnectionManager().shutdown();
try {
JSONObject completeJSONObj = new JSONObject(result);
String json = completeJSONObj.toString();
Log.d(TAG, json);
JSONObject results = completeJSONObj.getJSONObject("results");
} catch (JSONException e) {
Log.d(TAG,"JSON parsing error:" + e.getMessage());
}
}
manifest:
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.tv"
android:versionCode="1"
android:versionName="1.0">
<uses-sdk android:minSdkVersion="11" />
<uses-permission android:name="android.permission.INTERNET" />
<application android:icon="@drawable/icon" android:label="@string/app_name">
<activity android:name=".MyActivity"
android:label="@string/app_name">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>
</manifest>
Current log when ran:
07-31 17:56:17.175: DEBUG/log_tag(10869): start load col 3
07-31 17:56:17.205: DEBUG/log_tag(10869): httpclient.execute failed
Last line of console:
[2011-07-31 11:57:57 - My app] ActivityManager: Starting: Intent { act=android.intent.action.MAIN cat=[android.intent.category.LAUNCHER] cmp=com.example.tv/.MyActivity }
** edit – stacktraces **
07-31 18:11:47.475: WARN/System.err(11083): android.os.NetworkOnMainThreadException
07-31 18:11:47.475: WARN/System.err(11083): at android.os.StrictMode$AndroidBlockGuardPolicy.onNetwork(StrictMode.java:1077)
07-31 18:11:47.475: WARN/System.err(11083): at java.net.InetAddress.lookupHostByName(InetAddress.java:477)
07-31 18:11:47.475: WARN/System.err(11083): at java.net.InetAddress.getAllByNameImpl(InetAddress.java:277)
07-31 18:11:47.475: WARN/System.err(11083): at java.net.InetAddress.getAllByName(InetAddress.java:249)
07-31 18:11:47.475: WARN/System.err(11083): at org.apache.http.impl.conn.DefaultClientConnectionOperator.openConnection(DefaultClientConnectionOperator.java:136)
07-31 18:11:47.475: WARN/System.err(11083): at org.apache.http.impl.conn.AbstractPoolEntry.open(AbstractPoolEntry.java:164)
07-31 18:11:47.475: WARN/System.err(11083): at org.apache.http.impl.conn.AbstractPooledConnAdapter.open(AbstractPooledConnAdapter.java:119)
07-31 18:11:47.475: WARN/System.err(11083): at org.apache.http.impl.client.DefaultRequestDirector.execute(DefaultRequestDirector.java:360)
07-31 18:11:47.475: WARN/System.err(11083): at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:555)
07-31 18:11:47.475: WARN/System.err(11083): at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:653)
07-31 18:11:47.475: WARN/System.err(11083): at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:627)
07-31 18:11:47.475: WARN/System.err(11083): at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:616)
07-31 18:11:47.475: WARN/System.err(11083): at com.foxbusiness.tv.FOXBusinessActivity.loadCol3(FOXBusinessActivity.java:134)
07-31 18:11:47.475: WARN/System.err(11083): at com.foxbusiness.tv.FOXBusinessActivity.access$1(FOXBusinessActivity.java:121)
07-31 18:11:47.475: WARN/System.err(11083): at com.foxbusiness.tv.FOXBusinessActivity$2.onClick(FOXBusinessActivity.java:113)
07-31 18:11:47.475: WARN/System.err(11083): at android.view.View.performClick(View.java:3110)
07-31 18:11:47.475: WARN/System.err(11083): at android.view.View$PerformClick.run(View.java:11928)
07-31 18:11:47.485: WARN/System.err(11083): at android.os.Handler.handleCallback(Handler.java:587)
07-31 18:11:47.485: WARN/System.err(11083): at android.os.Handler.dispatchMessage(Handler.java:92)
07-31 18:11:47.485: WARN/System.err(11083): at android.os.Looper.loop(Looper.java:132)
07-31 18:11:47.485: WARN/System.err(11083): at android.app.ActivityThread.main(ActivityThread.java:4025)
07-31 18:11:47.485: WARN/System.err(11083): at java.lang.reflect.Method.invokeNative(Native Method)
07-31 18:11:47.485: WARN/System.err(11083): at java.lang.reflect.Method.invoke(Method.java:491)
07-31 18:11:47.485: WARN/System.err(11083): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:841)
07-31 18:11:47.485: WARN/System.err(11083): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:599)
07-31 18:11:47.485: WARN/System.err(11083): at dalvik.system.NativeStart.main(Native Method)
07-31 18:09:26.915: ERROR/AndroidRuntime(11024): FATAL EXCEPTION: main
07-31 18:09:26.915: ERROR/AndroidRuntime(11024): java.lang.NullPointerException
07-31 18:09:26.915: ERROR/AndroidRuntime(11024): at org.json.JSONTokener.nextCleanInternal(JSONTokener.java:112)
07-31 18:09:26.915: ERROR/AndroidRuntime(11024): at org.json.JSONTokener.nextValue(JSONTokener.java:90)
07-31 18:09:26.915: ERROR/AndroidRuntime(11024): at org.json.JSONObject.<init>(JSONObject.java:154)
07-31 18:09:26.915: ERROR/AndroidRuntime(11024): at org.json.JSONObject.<init>(JSONObject.java:171)
07-31 18:09:26.915: ERROR/AndroidRuntime(11024): at com.example.tv.MyActivity.loadCol3(MyActivity.java:142)
07-31 18:09:26.915: ERROR/AndroidRuntime(11024): at com.example.tv.MyActivity.access$1(MyActivity.java:121)
07-31 18:09:26.915: ERROR/AndroidRuntime(11024): at com.example.tv.MyActivity$2.onClick(MyActivity.java:113)
07-31 18:09:26.915: ERROR/AndroidRuntime(11024): at android.view.View.performClick(View.java:3110)
07-31 18:09:26.915: ERROR/AndroidRuntime(11024): at android.view.View$PerformClick.run(View.java:11928)
07-31 18:09:26.915: ERROR/AndroidRuntime(11024): at android.os.Handler.handleCallback(Handler.java:587)
07-31 18:09:26.915: ERROR/AndroidRuntime(11024): at android.os.Handler.dispatchMessage(Handler.java:92)
07-31 18:09:26.915: ERROR/AndroidRuntime(11024): at android.os.Looper.loop(Looper.java:132)
07-31 18:09:26.915: ERROR/AndroidRuntime(11024): at android.app.ActivityThread.main(ActivityThread.java:4025)
07-31 18:09:26.915: ERROR/AndroidRuntime(11024): at java.lang.reflect.Method.invokeNative(Native Method)
07-31 18:09:26.915: ERROR/AndroidRuntime(11024): at java.lang.reflect.Method.invoke(Method.java:491)
07-31 18:09:26.915: ERROR/AndroidRuntime(11024): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:841)
07-31 18:09:26.915: ERROR/AndroidRuntime(11024): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:599)
07-31 18:09:26.915: ERROR/AndroidRuntime(11024): at dalvik.system.NativeStart.main(Native Method)
You get the
NullpointerExceptionbecause you access theresulteven when the GET method fails.As for the
NetworkOnMainThreadException, well the problem is exactly that: You do networking on the main thread. Run your GET request in either anAsyncTaskor anIntentService.