Databases
StackOverflow2013
Postsdbo
POAndroidBlockGuardPolicy error when performing JSON query
 

Note that there are some explanatory texts on larger screens.

plurals
  1. POAndroidBlockGuardPolicy error when performing JSON query
    primarykey
    data
    text
    <p>I get an AndroidBlockGuardPolicy error when trying to execute a JSON query. Looking at other examples, I am suppose to use AsyncTask, and I thought I did that, but I getting an error... Am I just not seeing something?</p> <pre><code>@Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.pm_article); context = this; StrictMode.setThreadPolicy(new StrictMode.ThreadPolicy.Builder() .detectAll() .penaltyLog() .penaltyDialog() .build()); getSupportActionBar().setDisplayHomeAsUpEnabled(true); getSupportActionBar().setHomeButtonEnabled(true); // getting product details from intent Intent i = getIntent(); // getting product id -section id (sid) from intent //Receive the section id (SID) from th intent String id = i.getStringExtra(PM_section.INTENT_ID); id_pub = id; new GetProductDetails().execute(); } </code></pre> <p>AsyncTask</p> <pre><code> class GetProductDetails extends AsyncTask&lt;String, String, String&gt; { /** * Before starting background thread Show Progress Dialog * */ @Override protected void onPreExecute() { super.onPreExecute(); pDialog = new ProgressDialog(PM_article.this); pDialog.setMessage("Loading product details. Please wait..."); pDialog.setIndeterminate(false); pDialog.setCancelable(true); pDialog.show(); } /** * Getting product details in background thread * */ protected String doInBackground(String... args) { runOnUiThread(new Runnable() { public void run () { SharedPreferences sharedPrefs = PreferenceManager .getDefaultSharedPreferences(context); int success; try { //sid2.setText("ID: " + id_pub); // Building Parameters List&lt;NameValuePair&gt; params = new ArrayList&lt;NameValuePair&gt;(); params.add(new BasicNameValuePair("id", id_pub)); System.out.println("Loading stories into the activity!"); // getting product details by making HTTP request // Note that product details url will use GET request JSONObject json = jParser.makeHttpRequest(url_load_article, "GET", params); System.out.println("Loading stories into the actisadfsafdsafvity!"); // check your log for json response Log.d("Single Product Details", json.toString()); // json success tag success = json.getInt(TAG_SUCCESS); if (success == 1) { // successfully received product details JSONArray contentObj = json .getJSONArray(TAG_PRODUCT); // JSON Array // get first product object from JSON Array JSONObject product = contentObj.getJSONObject(0); // product with this pid found // Edit Text art_title = (TextView) findViewById(R.id.display_title); art_author = (TextView) findViewById(R.id.display_author); art_publishtime = (TextView) findViewById(R.id.display_date); art_content = (TextView) findViewById(R.id.display_content); // display product data in TextView int text_size = Integer.parseInt(sharedPrefs.getString("prefFontSize", "1")); art_title.setText(product.getString(TAG_TITLE)); art_title.setTextSize(TypedValue.COMPLEX_UNIT_SP, text_size+20); art_author.setText(product.getString(TAG_AUTHOR)); art_author.setTextSize(TypedValue.COMPLEX_UNIT_SP, text_size+14); art_publishtime.setText(product.getString(TAG_PUBLISHTIME)); art_publishtime.setTextSize(TypedValue.COMPLEX_UNIT_SP, text_size+14); art_content.setText(product.getString(TAG_CONTENT)); art_content.setTextSize(TypedValue.COMPLEX_UNIT_SP, text_size+18); }else{ // product with pid not found } } catch (JSONException e) { e.printStackTrace(); } } }); return null; } /** * After completing background task Dismiss the progress dialog * **/ protected void onPostExecute(String file_url) { // dismiss the dialog once got all details pDialog.dismiss(); } } </code></pre> <p>Error log</p> <pre><code>01-06 22:58:42.263: E/AndroidRuntime(23835): FATAL EXCEPTION: main 01-06 22:58:42.263: E/AndroidRuntime(23835): android.os.NetworkOnMainThreadException 01-06 22:58:42.263: E/AndroidRuntime(23835): at android.os.StrictMode$AndroidBlockGuardPolicy.onNetwork(StrictMode.java:1117) 01-06 22:58:42.263: E/AndroidRuntime(23835): at java.net.InetAddress.lookupHostByName(InetAddress.java:385) 01-06 22:58:42.263: E/AndroidRuntime(23835): at java.net.InetAddress.getAllByNameImpl(InetAddress.java:236) 01-06 22:58:42.263: E/AndroidRuntime(23835): at java.net.InetAddress.getAllByName(InetAddress.java:214) 01-06 22:58:42.263: E/AndroidRuntime(23835): at org.apache.http.impl.conn.DefaultClientConnectionOperator.openConnection(DefaultClientConnectionOperator.java:137) 01-06 22:58:42.263: E/AndroidRuntime(23835): at org.apache.http.impl.conn.AbstractPoolEntry.open(AbstractPoolEntry.java:164) 01-06 22:58:42.263: E/AndroidRuntime(23835): at org.apache.http.impl.conn.AbstractPooledConnAdapter.open(AbstractPooledConnAdapter.java:119) 01-06 22:58:42.263: E/AndroidRuntime(23835): at org.apache.http.impl.client.DefaultRequestDirector.execute(DefaultRequestDirector.java:360) 01-06 22:58:42.263: E/AndroidRuntime(23835): at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:555) 01-06 22:58:42.263: E/AndroidRuntime(23835): at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:487) 01-06 22:58:42.263: E/AndroidRuntime(23835): at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:465) 01-06 22:58:42.263: E/AndroidRuntime(23835): at com.example.pt_layout_test3.JSONParser.makeHttpRequest(JSONParser.java:62) 01-06 22:58:42.263: E/AndroidRuntime(23835): at com.example.pt_layout_test3.PM_article$GetProductDetails$1.run(PM_article.java:180) 01-06 22:58:42.263: E/AndroidRuntime(23835): at android.os.Handler.handleCallback(Handler.java:615) 01-06 22:58:42.263: E/AndroidRuntime(23835): at android.os.Handler.dispatchMessage(Handler.java:92) 01-06 22:58:42.263: E/AndroidRuntime(23835): at android.os.Looper.loop(Looper.java:137) 01-06 22:58:42.263: E/AndroidRuntime(23835): at android.app.ActivityThread.main(ActivityThread.java:4745) 01-06 22:58:42.263: E/AndroidRuntime(23835): at java.lang.reflect.Method.invokeNative(Native Method) 01-06 22:58:42.263: E/AndroidRuntime(23835): at java.lang.reflect.Method.invoke(Method.java:511) 01-06 22:58:42.263: E/AndroidRuntime(23835): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:786) 01-06 22:58:42.263: E/AndroidRuntime(23835): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:553) 01-06 22:58:42.263: E/AndroidRuntime(23835): at dalvik.system.NativeStart.main(Native Method) </code></pre>
    singulars
    1. PO
      singulars
      1. PTAnswer
    1. This table or related slice is empty.
    1. PTQuestion
    1. USgbrewster
    1. USgbrewster
    plurals
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. PO
      singulars
      1. PTAnswer
    1. This table or related slice is empty.
    1. COpost your error log
      singulars
      1. POAndroidBlockGuardPolicy error when performing JSON query
      1. USjuned
    2. COI posted the error log on the main post. It was too long to fit inside a comment.
      singulars
      1. POAndroidBlockGuardPolicy error when performing JSON query
      1. USgbrewster
    3. COyou should go with ρяσѕρєя K's answer. you can't update UI from background thread.
      singulars
      1. POAndroidBlockGuardPolicy error when performing JSON query
      1. USjuned
 

Querying!

 
Guidance
A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

SQuiL has stopped working due to an internal error.

If you are curious you may find further information in the browser console, which is accessible through the devtools (F12).

Reload