android - startActivityForResult is not recognized as function in AsyncTask -

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I am creating a phonegap project. I have created an original plugin for this in Android. In it, the Ascend Task is also being called. In this, I have the context.startActivity (intent) function. I want to do one thing after this activity is completed. I found a solution to use context.startActivityForResult (intent, i) instead, but this function is not recognizable.

Then I tried, 

  (activity) reference) .startActivityForResult (intent, 1); According to   
  
  
 But at the time of  startActivityForResult , I found the file installation error.  
 My code is as follows -  
  Public category reaches MyPlugin CordovaPlugin {reference reference; Callback callback callback; @ Override Public Zero Start (Cordova Interface Cordova, Cordova web web view) {Super Interlise (Cordova, webview); } Override Public Boolean Execution (String Action, JSNARRA RGR, CallbackConnecte CallbackContacts) throws JSONException {reference = this.cordova.getActivity (). GetApplicationContext (); Callback = callbackContext; If (action.equals ("plugin1")) {System.out.println ("Plugin Inside 1"); Letter myurl = args.getString (0); If (the Network Connection () == True) {System.out.println ("Network Connected"); New DownloadManager () Executed (myurl); Back true; } Else {System.out.println ("Network is not connected"); CallbackContext.error ("Internet connection is not available."); return false; }} CallbackContext.error ("Something has happened, please try later."); return false; } Public Class DownloadManager uses AsyncTask & lt; String, string, string & gt; {@Override public string doInBackground (string ... arg0) {try {// IMEI number telephony manager mngr = (telephony manager) context.getSystemService (context.TELEPHONY_SERVICE); String imei_device = mngr.getDeviceId (); // Download the app to download and install (arg0 [0]); Installapk (); Plugin result result = new plugin product (plugin results. Status ok, "success"); Result.setKeepCallback (true); Callback.success ("Operation Completed !!"); Return tap; } Hold (exception e) {callback.error ("something went wrong. Try again later"); Return tap; }}} Public Zero installapk () {{intent = new intent (Intent.ACTION_VIEW); Intent.addFlags (Intent.FLAG_ACTIVITY_NEW_TASK); Intent.setDataAndType (Uri.fromFile (new file (Environment.getExternalStorageDirectory () + "/" + fileName), "app / vnd.android.package-archive"); (Activity) reference). Preliminary Results (Intent, 1); } Hold (exception e) {Log.e ("file installation error", egetmessage ()); Println (e.getMessage ()); Callback.error ("installation failed. Please try later"); }} On the @Override, public zero active features (int requestcode, integer result code, intent data) {if (requestcode == 1) // check whether the request code is sent to you {if (resultCode == activity. RESULT_OK) { System.out.println ("The result is OK"); } Else {System.out.println ("Result is not OK"); }} Super.onActivityResult (requestCode, ResultsCode, Data); }   
 Thanax Advance   
 
 
 What error  ClassCastException ?  
 If so, this is because you are changing with the application context, which is the result of a ,  activity  (which is  context ) Context is  but no one can not be cast to achieve the  activity , and thus the  startActivityForResult  method.  
 If you change, then it works:  
  context = this.cordova.getActivity (). GetApplicationContext (); With   
:  
  context = this.cordova.getActivity ();   
?  
 There is an explanation about different types of references, and when each is used.

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