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我知道這已被問過幾次，但我面臨一個問題。 當我將設備連接到系統並運行我的應用程序時，它工作正常。 即使我正在生成一個調試apk並運行應用程序，它工作正常。應用程序在調試模式下工作，但崩潰與發佈apk顯示java.lang.RuntimeException：Android
然而，在生成簽署過的APK的應用程序，我提示以下錯誤：發佈：
FATAL EXCEPTION: AsyncTask #5
Process: com.xxxx.xxxxx, PID: 8180
java.lang.RuntimeException: An error occurred while executing doInBackground() at android.os.AsyncTask$3.done(AsyncTask.java:309)
at java.util.concurrent.FutureTask.finishCompletion(FutureTask.java:354)
at java.util.concurrent.FutureTask.setException(FutureTask.java:223)
at java.util.concurrent.FutureTask.run(FutureTask.java:242)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1113)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:588)
at java.lang.Thread.run(Thread.java:818)
我無法揣摩出此異常發生，爲什麼？
請問誰能幫忙？
我已經通過幾個環節去爲：
我打電話給我的異步任務爲，
new BannerAdAsyncTask().executeOnExecutor(AsyncTask.THREAD_POOL_EXECUTOR);
我的異步任務是，
// Checking banner ad and displaying the appropriate banner ad
class BannerAdAsyncTask extends AsyncTask<String, Boolean, Boolean> {
String addUserResponseCode;
String responseForAdduserRequest;
String msg;
/*
* (non-Javadoc)
*
* @see android.os.AsyncTask#onPreExecute()
*/
@Override
protected void onPreExecute() {
super.onPreExecute();
}
/*
* (non-Javadoc)
*
* @see android.os.AsyncTask#doInBackground(Params[])
*/
@Override
protected Boolean doInBackground(String... params) {
try {
String fetchBannerURL = context.getString(R.string.site_url)
+ "fetchbannerad.cfc?method=fetchbannerad";
responseForAdduserRequest = fetchContentFromServer(fetchBannerURL);
} catch (Exception e) {
e.printStackTrace();
}
return null;
}
/*
* (non-Javadoc)
*
* @see android.os.AsyncTask#onPostExecute(java.lang.Object)
*/
@Override
protected void onPostExecute(Boolean result) {
super.onPostExecute(result);
try {
if (responseForAdduserRequest != null) {
// Parse JSON
JSONObject pages = new JSONObject(responseForAdduserRequest);
String d = pages.getString("DATA");
JSONArray dd = new JSONArray(d);
int len = dd.length();
for (int i = 0; i < dd.length(); i++) {
String p = dd.getString(i);
JSONArray values = new JSONArray(p);
adFileName = values.getString(6);
adLinkLocation = values.getString(7);
}
adBanner.setVisibility(View.VISIBLE);
adBanner.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
// If the link location contains the companyid field,
// fetch the company id and navigate to the app's
// companies page with this id
if (adLinkLocation.contains("?companyid=")) {
int temp = adLinkLocation.indexOf("companyid=");
temp = temp + 10;
String companyid = adLinkLocation.substring(temp);
boolean isNumber = true;
try {
int id = Integer.parseInt(companyid);
} catch (NumberFormatException e) {
isNumber = false;
}
if (isNumber) {
Intent intent = new Intent(context,
CompanyProfile.class);
intent.putExtra("company_id",
Integer.parseInt(companyid));
// Get company branches as a cursor
final DataAdapter mDbHelper = new DataAdapter(
context);
mDbHelper.createDatabase();
mDbHelper.open();
intent.putExtra("branch_id", primaryBranchID);
intent.putExtra("com_name", name);
intent.putExtra("com_tradename", tradename);
intent.putExtra("com_desc", "");
intent.putExtra("main_branch_id",
primaryBranchID);
mDbHelper.close();
context.startActivity(intent);
}
} else {
// Otherwise load the link in browser
Intent intent = new Intent(
"android.intent.action.VIEW", Uri
.parse(adLinkLocation));
startActivity(intent);
}
}
});
}
} catch (Exception e) {
e.printStackTrace();
}
}
}
這是我從服務器獲取內容的方法的代碼。我懷疑這個問題在這裏得到響應，
private static String fetchContentFromServer(String request) {
/* Converting required variables to convert the response */
String line = "";
String responseString = "";
/* Initializing the HTTP client */
HttpClient httpClient = new DefaultHttpClient();
try {
/* Read and write connection timeout */
HttpParams httpParameters = new BasicHttpParams();
int timeOutInMillis = 8 * 1000;
HttpConnectionParams.setConnectionTimeout(httpParameters,
timeOutInMillis);
int socketTimeOutinMillis = 8000;
HttpConnectionParams.setSoTimeout(httpParameters,
socketTimeOutinMillis);
/*
* Getting the response by giving request and adding it to the
* buffer reader to read the content
*/
HttpResponse httpResponse = httpClient
.execute(new HttpGet(request));
InputStream inputStream = httpResponse.getEntity().getContent();
BufferedReader bufferedReader = new BufferedReader(
new InputStreamReader(inputStream));
/* For all the lines in the response */
while ((line = bufferedReader.readLine()) != null) {
/* Appending every line to the result */
responseString += line;
}
/* Closing the input stream and displaying result in text view */
inputStream.close();
} catch (Exception e) {
e.printStackTrace();
} finally {
/* Closing the http connection */
httpClient.getConnectionManager().shutdown();
}
return responseString;
}
發佈您的代碼，請。 – FarshidABZ
@FarshidABZ請參閱編輯的問題。 – devgeek
@devgeek嘗試清理構建項目，然後重新生成已簽名的apk。 – Rahulrr2602