我有以下错误：
02-21 11:42:13.174: E/WindowManager(29845): Activity info.androidhive.tabsswipe.Party has leaked window com.android.internal.policy.impl.PhoneWindow$DecorView@420482c0 that was originally added here
02-21 11:42:13.174: E/WindowManager(29845): android.view.WindowLeaked: Activity info.androidhive.tabsswipe.Party has leaked window com.android.internal.policy.impl.PhoneWindow$DecorView@420482c0 that was originally added here
02-21 11:42:13.174: E/WindowManager(29845): at android.view.ViewRootImpl.<init>(ViewRootImpl.java:376)
02-21 11:42:13.174: E/WindowManager(29845): at android.view.WindowManagerImpl.addView(WindowManagerImpl.java:296)
02-21 11:42:13.174: E/WindowManager(29845): at android.view.WindowManagerImpl.addView(WindowManagerImpl.java:228)
02-21 11:42:13.174: E/WindowManager(29845): at android.view.WindowManagerImpl$CompatModeWrapper.addView(WindowManagerImpl.java:149)
02-21 11:42:13.174: E/WindowManager(29845): at android.view.Window$LocalWindowManager.addView(Window.java:549)
02-21 11:42:13.174: E/WindowManager(29845): at android.app.Dialog.show(Dialog.java:277)
02-21 11:42:13.174: E/WindowManager(29845): at info.androidhive.tabsswipe.Party$LoadParties.onPreExecute(Party.java:120)
02-21 11:42:13.174: E/WindowManager(298
任何人都可以帮助我吗？这是我的代码：
package info.androidhive.tabsswipe;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import org.apache.http.NameValuePair;
import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;
import android.app.ListActivity;
import android.app.ProgressDialog;
import android.content.Intent;
import android.graphics.drawable.Drawable;
import android.os.AsyncTask;
import android.os.Bundle;
import android.os.StrictMode;
import android.util.Log;
import android.view.View;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.ListAdapter;
import android.widget.ListView;
import android.widget.SimpleAdapter;
import android.widget.TextView;
public class Party extends ListActivity {
private ProgressDialog pDialog;
// Creating JSON Parser object
JSONParser jParser = new JSONParser();
ArrayList<HashMap<String, String>> partyList;
// url to get all products list
private static String url = "http://192.168.1.6/politiciansnpolitics/appphp/parties.php" ;
// JSON Node names
private static final String TAG_SUCCESS = "success";
private static final String TAG_PARTY = "party";
private static final String TAG_ID = "party_id";
private static final String TAG_NAME = "party_name";
private static final String TAG_PIC = "party_logo";
// products JSONArray
JSONArray party = null;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_party);
Drawable rightArrow = getResources().getDrawable(R.drawable.worldmap2);
// setting the opacity (alpha)
rightArrow.setAlpha(100);
// Hashmap for ListView
partyList = new ArrayList<HashMap<String, String>>();
// Loading products in Background Thread
new LoadParties().execute();
// Get listview
ListView lv = getListView();
// on seleting single product
// launching Edit Product Screen
lv.setOnItemClickListener(new OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> parent, View view,
int position, long id) {
// getting values from selected ListItem
String party_id = ((TextView) view.findViewById(R.id.id)).getText().toString();
// Starting new intent
Intent in = new Intent(getApplicationContext(),Party_Desc.class);
// sending pid to next activity
in.putExtra(TAG_ID, party_id);
// starting new activity and expecting some response back
startActivityForResult(in, 100);
}
});
}
// Response from Edit Product Activity
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
// if result code 100
if (resultCode == 100) {
// if result code 100 is received
// means user edited/deleted product
// reload this screen again
Intent intent = getIntent();
finish();
startActivity(intent);
}
}
/**
* Background Async Task to Load all product by making HTTP Request
* */
class LoadParties extends AsyncTask<String, String, String> {
/**
* Before starting background thread Show Progress Dialog
* */
@Override
protected void onPreExecute() {
super.onPreExecute();
pDialog = new ProgressDialog(Party.this);
pDialog.setMessage("Loading parties. Please wait...");
pDialog.setIndeterminate(false);
pDialog.setCancelable(false);
pDialog.show();
}
/**
* getting All products from url
* */
protected String doInBackground(String... args) {
// Building Parameters
StrictMode.setThreadPolicy(new StrictMode.ThreadPolicy.Builder()
.detectDiskReads().detectDiskWrites().detectNetwork() // StrictMode is most commonly used to catch accidental disk or network access on the application's main thread
.penaltyLog().build());
List<NameValuePair> params = new ArrayList<NameValuePair>();
// getting JSON string from URL
JSONObject json = jParser.makeHttpRequest(url, "GET", params);
// Check your log cat for JSON reponse
Log.d("All Products: ", json.toString());
try {
// Checking for SUCCESS TAG
int success = json.getInt(TAG_SUCCESS);
if (success == 1) {
// products found
// Getting Array of Products
party = json.getJSONArray(TAG_PARTY);
// looping through All Products
for (int i = 0; i <party.length(); i++) {
JSONObject c = party.getJSONObject(i);
// Storing each json item in variable
String id = c.getString(TAG_ID);
String name = c.getString(TAG_NAME);
// creating new HashMap
HashMap<String, String> map = new HashMap<String, String>();
// adding each child node to HashMap <span class="vf7210h94y" id="vf7210h94y_22">key</span> => value
map.put(TAG_ID, id);
map.put(TAG_NAME, name);
// adding HashList to ArrayList
partyList.add(map);
}
} else {
// no products found
// Launch Add New product Activity
Intent i = new Intent(getApplicationContext(),TopRatedFragment.class);
// Closing all previous activities
i.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
startActivity(i);
}
} catch (JSONException e) {
e.printStackTrace();
}
return null;
}
/**
* After completing background task Dismiss the progress dialog
* **/
protected void onPostExecute(String file_url) {
// dismiss the dialog after getting all products
pDialog.dismiss();
// updating UI from Background Thread
runOnUiThread(new Runnable() {
public void run() {
/**
* Updating parsed JSON data into ListView
* */
ListAdapter adapter = new SimpleAdapter( Party.this,partyList,R.layout.list_item, new String[] { TAG_ID,
TAG_NAME},
new int[] { R.id.id, R.id.name });
// updating listview
setListAdapter(adapter);
}
});
}
}
}
答案 0 :(得分：2)
我认为，你应该尝试使用你的应用程序上下文而不是Activity：
...
pDialog = new ProgressDialog(Party.this);
...
答案 1 :(得分：1)
当某个函数尝试在后台访问活动时出现窗口泄漏错误！，
因此，请确保在活动进入后台时终止对话框。
在您的情况下，将其添加到您的活动中。
@Override
public void onPause() {
super.onPause();
if(pDialog != null){
pDialog.dismiss();
}
}