我目前手机上没有3g，我正试图通过WIFI做这一切，有什么建议吗？我想这就是我收到这个错误的原因。 这是Async类;
class CreateNewProduct extends AsyncTask<String, String, String> {
/**
* Before starting background thread Show Progress Dialog
* */
@Override
protected void onPreExecute() {
super.onPreExecute();
pDialog = new ProgressDialog(NewProductActivity.this);
pDialog.setMessage("Creating Product..");
pDialog.setIndeterminate(false);
pDialog.setCancelable(true);
pDialog.show();
}
/**
* Creating product
* */
protected String doInBackground(String... args) {
String name = inputName.getText().toString();
String price = inputPrice.getText().toString();
String description = inputDesc.getText().toString();
// Building Parameters
List<NameValuePair> params = new ArrayList<NameValuePair>();
params.add(new BasicNameValuePair("name", name));
params.add(new BasicNameValuePair("price", price));
params.add(new BasicNameValuePair("description", description));
// getting JSON Object
// Note that create product url accepts POST method
JSONObject json = jsonParser.makeHttpRequest(url_create_product,
"POST", params);
// check log cat fro response
Log.d("Create Response", json.toString());
// check for success tag
try {
int success = json.getInt(TAG_SUCCESS);
if (success == 1) {
// successfully created product
Intent i = new Intent(getApplicationContext(), AllProductsActivity.class);
startActivity(i);
// closing this screen
finish();
} else {
// failed to create product
}
} 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 done
pDialog.dismiss();
}
错误日志
11-28 05:30:40.525: E/WindowManager(6132): Activity com.example.androidhive.NewProductActivity has leaked window com.android.internal.policy.impl.PhoneWindow$DecorView@425a2140 that was originally added here
11-28 05:30:40.525: E/WindowManager(6132): android.view.WindowLeaked: Activity com.example.androidhive.NewProductActivity has leaked window com.android.internal.policy.impl.PhoneWindow$DecorView@425a2140 that was originally added here
11-28 05:30:40.525: E/WindowManager(6132): at android.view.ViewRootImpl.<init>(ViewRootImpl.java:409)
11-28 05:30:40.525: E/WindowManager(6132): at android.view.WindowManagerImpl.addView(WindowManagerImpl.java:322)
11-28 05:30:40.525: E/WindowManager(6132): at android.view.WindowManagerImpl.addView(WindowManagerImpl.java:234)
11-28 05:30:40.525: E/WindowManager(6132): at android.view.WindowManagerImpl$CompatModeWrapper.addView(WindowManagerImpl.java:153)
11-28 05:30:40.525: E/WindowManager(6132): at android.view.Window$LocalWindowManager.addView(Window.java:559)
11-28 05:30:40.525: E/WindowManager(6132): at android.app.Dialog.show(Dialog.java:277)
11-28 05:30:40.525: E/WindowManager(6132): at com.example.androidhive.NewProductActivity$CreateNewProduct.onPreExecute(NewProductActivity.java:76)
11-28 05:30:40.525: E/WindowManager(6132): at android.os.AsyncTask.executeOnExecutor(AsyncTask.java:586)
11-28 05:30:40.525: E/WindowManager(6132): at android.os.AsyncTask.execute(AsyncTask.java:534)
11-28 05:30:40.525: E/WindowManager(6132): at com.example.androidhive.NewProductActivity$1.onClick(NewProductActivity.java:56)
11-28 05:30:40.525: E/WindowManager(6132): at android.view.View.performClick(View.java:4192)
11-28 05:30:40.525: E/WindowManager(6132): at android.view.View$PerformClick.run(View.java:17254)
11-28 05:30:40.525: E/WindowManager(6132): at android.os.Handler.handleCallback(Handler.java:615)
11-28 05:30:40.525: E/WindowManager(6132): at android.os.Handler.dispatchMessage(Handler.java:92)
11-28 05:30:40.525: E/WindowManager(6132): at android.os.Looper.loop(Looper.java:137)
11-28 05:30:40.525: E/WindowManager(6132): at android.app.ActivityThread.main(ActivityThread.java:4950)
11-28 05:30:40.525: E/WindowManager(6132): at java.lang.reflect.Method.invokeNative(Native Method)
11-28 05:30:40.525: E/WindowManager(6132): at java.lang.reflect.Method.invoke(Method.java:511)
11-28 05:30:40.525: E/WindowManager(6132): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1004)
11-28 05:30:40.525: E/WindowManager(6132): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:771)
11-28 05:30:40.525: E/WindowManager(6132): at dalvik.system.NativeStart.main(Native Method)
我的AndroidManifest.xml
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.androidhive"
android:versionCode="1"
android:versionName="1.0" >
<uses-sdk android:minSdkVersion="8" />
<application
android:configChanges="keyboardHidden|orientation"
android:icon="@drawable/ic_launcher"
android:label="@string/app_name" >
<activity
android:name=".MainScreenActivity"
android:label="@string/app_name" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<!-- All Product Activity -->
<activity
android:name=".AllProductsActivity"
android:label="All Products" >
</activity>
<!-- Add Product Activity -->
<activity
android:name=".NewProductActivity"
android:label="Add New Product" >
</activity>
<!-- Edit Product Activity -->
<activity
android:name=".EditProductActivity"
android:label="Edit Product" >
</activity>
</application>
<!-- Internet Permissions -->
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
<uses-permission android:name="android.permission.ACCESS_WIFI_STATE" />
答案 0 :(得分：0)
<uses-permission android:name="android.permission.INTERNET" />
同时添加此权限
答案 1 :(得分：0)
我认为你不应该在doInBackground开始一项新活动。 doInBackground应该从网站获取信息并将其传递到onPostExecute，您应该移动代码以打开新活动。
答案 2 :(得分：0)
您在退出活动后尝试显示对话框。 见Activity has leaked window that was originally added