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POOnCreate method keeps getting called repeatedly
 

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    <hr> <p><strong>Update:</strong> Thank you all for attempting to help me solve this bug. I am still unsure as to the cause, I was able to roll back to a previous commit and continue development from there. This previous commit did show the same bug, however after I commented out <code>button.performClick()</code> it went away. Strangely, this does not work on the most recent commit. </p> <p>I still do not understand this bug and would appreciate any more assistance in helping determine the root cause. My greatest fear would be to inadvertently re-introduce it.</p> <hr> <p>I have the most crazy error I have ever seen.</p> <p>The OnCreate method is being called over and over again, freezing my application and giving me a slight flicker. The only solution is then to exit to the home screen and force quit the application from the settings menu.</p> <p>Here is what is happening in detail:</p> <ol> <li>Application starts (Main Activity)</li> <li>Main Activity calls the Second Activity</li> <li>Second Activity calls onCreate, sets up as normal</li> <li>Second Activity randomly decides to exit onCreate &lt;-- I think this what's happening</li> <li>Second Activity's onCreate gets called again. It doesn't ever return to the Main Activity.</li> </ol> <p>I have run a debugger, it appears that the second activity successfully completes the onComplete/onResume sequence, then decides to exit and restart.</p> <p>Has anybody ever heard of this behavior before? </p> <p>I haven't noticed any exceptions being thrown. Also, in the course of debugging, I did go ahead and check those locations that you see as silent fail. (this is the older code before I littered it with print statements)</p> <p><strong>UPDATE:</strong> When attempting to stop the process, I must turn on airplane mode. This means it has something to do with this code block (Second Activity)</p> <pre><code>else if (Network.haveNetworkConnection(Login.getContext()) &amp;&amp; Login.checkClientId()) {...} </code></pre> <p><strong>With no internet, it will hit the else statement and does not display this behavior.</strong></p> <p><strong>CODE:</strong></p> <p>onResume() of the Main Activity, where I call the Second Activity:</p> <pre><code> @Override public void onResume() { super.onResume(); //Check If logged in, else go to login page Login.setContext(getApplicationContext()); //Reset Notification Number GCMIntentService.cancelNotifications(); /** GO TO LOGIN **/ if(!Login.isLoggedIn()) { //If user is not logged in, open login page System.out.println("RESUMING MAIN AND STARTING LOGIN INTENT"); Intent intent = new Intent(ActivityMain.this, ActivityLogin.class); intent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TASK|Intent.FLAG_ACTIVITY_NEW_TASK); startActivity(intent); } else { Login.setupStuffOnce(); Event.pullEvents(); //Get New Events //Update ListView updateMainFeed(); } } </code></pre> <p>This is the Second Activity:</p> <pre><code>public class ActivityLogin extends Activity { private String postData; //private Context c; //final Timer timer = new Timer(); //Facebook Stuff private Facebook facebook = new Facebook(Config.FBAPPID); private AsyncFacebookRunner mAsyncRunner = new AsyncFacebookRunner(facebook); //Layout Stuff EditText username, password; Button loginButton, signupButton; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); // Open Database Login.setContext(getApplicationContext()); Database.open(getApplicationContext()); } /* * @Override public void onPause() { s } */ @Override public void onResume() { super.onResume(); // shouldn't put here but oh well init(); //If coming from ActivitySignup if(Transfer.username != null) { username.setText(Transfer.username); password.setText(Transfer.password); Transfer.password = null; Transfer.username = null; loginButton.performClick(); } } public void init() { Login.getUserLoggedIn(); if (Login.isLoggedIn()) { //Do Any Additional Setup Login.setupStuffOnce(); // If user is logged in, open main Intent intent = new Intent(ActivityLogin.this, ActivityMain.class); //intent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TASK | Intent.FLAG_ACTIVITY_NEW_TASK); startActivity(intent); } else if (Network.haveNetworkConnection(Login.getContext()) &amp;&amp; Login.checkClientId()) { // Else, Make User Login // Inflate Login and Present Website String clientid = Login.getClientId(); System.out.println("clientid:" + clientid); //System.exit(0); postData = "mobile=1&amp;client_id="+Login.getClientId(); // Inflate the view setContentView(R.layout.activitylogin3); username = (EditText) findViewById(R.id.username); password = (EditText) findViewById(R.id.password); //Inflate the Button loginButton = (Button) findViewById(R.id.loginButton); signupButton = (Button) findViewById(R.id.signupButton); signupButton.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { Intent intent = new Intent(ActivityLogin.this, ActivitySignup.class); intent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP|Intent.FLAG_ACTIVITY_SINGLE_TOP); startActivity(intent); } }); loginButton.setOnClickListener(new View.OnClickListener() { public void onClick(View view) { int res = Login.sendLogin(username.getText().toString(), password.getText().toString()); if(res == 202) { //Login Successful //Check if facebooked. if(Login.isFacebooked()) { //Just go to main Intent intent = new Intent(ActivityLogin.this, ActivityMain.class); //Are these flags necessary? //intent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TASK | Intent.FLAG_ACTIVITY_NEW_TASK); startActivity(intent); } else { //Go to facebook login page //Intent intent = new Intent(ActivityLogin.this, ActivityFBLogin.class); //startActivity(intent); //Login via Facebook doFacebook(); } } else { System.out.println("Login Failed: "+res); if(res == 405) { Toast.makeText(getApplicationContext(), "Incorrect Username/Password", Toast.LENGTH_SHORT).show(); password.setText(""); } else Toast.makeText(getApplicationContext(), "Network Error", Toast.LENGTH_SHORT).show(); //Not entirely true in all cases i think } /*Login.getUserLoggedIn(); if(Login.isLoggedIn()) { Intent intent = new Intent(ActivityLogin.this, ActivityMain.class); intent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TASK | Intent.FLAG_ACTIVITY_NEW_TASK); startActivity(intent); } else { Toast.makeText(getApplicationContext(), "Please Login Above", Toast.LENGTH_SHORT).show(); }*/ } }); } else { // Not Logged In and No Internet Access setContentView(R.layout.activitylogintext); EditText text = (EditText) findViewById(R.id.text); text.setText("No Internet Connection Detected\n requires internet to login"); Button button = (Button) findViewById(R.id.refreshButton); button.setOnClickListener(new View.OnClickListener() { public void onClick(View view) { //Login.getUserLoggedIn(); if(Network.haveNetworkConnection(Login.getContext())) { Intent intent = new Intent(ActivityLogin.this, ActivityLogin.class); //intent.setFlags(); startActivity(intent); } else { Toast.makeText(getApplicationContext(), "No Internet Access Detected", Toast.LENGTH_SHORT).show(); } } }); } } @Override public void onActivityResult(int requestCode, int resultCode, Intent data) { super.onActivityResult(requestCode, resultCode, data); facebook.authorizeCallback(requestCode, resultCode, data); } public void doFacebook() { facebook.authorize(this, Config.facebookPermissions, new DialogListener() { @Override public void onComplete(Bundle values) { /*SharedPreferences.Editor editor = state.edit(); editor.putString("access_token", facebook.getAccessToken()); editor.putLong("access_expires", facebook.getAccessExpires()); editor.commit(); */ //Input into database Login.saveAccessToken(facebook.getAccessToken()); Login.setFB(facebook.getAccessToken()); //Login.sendAccessToken(facebook.getAccessToken()); //Intent into Main Activity Intent intent = new Intent(ActivityLogin.this, ActivityMain.class); //intent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TASK | Intent.FLAG_ACTIVITY_NEW_TASK); startActivity(intent); } @Override public void onFacebookError(FacebookError error) { Toast.makeText(getApplicationContext(), "Error: "+error.getErrorType(), Toast.LENGTH_SHORT).show(); } @Override public void onError(DialogError e) { Toast.makeText(getApplicationContext(), "Error: "+e.getMessage(), Toast.LENGTH_SHORT).show(); } @Override public void onCancel() {} }); } public boolean checkForUserID(Context c) { try{ String res = Network.getUrl("www.website.com/mobile.php?got_user=1&amp;client_id="+Login.getClientId()); JSONObject json = JSON.constructObject(res); if(JSON.handleCode(json)) { if(json.getString("type").equals("userid")) { Login.setLogin(json.getString("data")); return true; } } } catch(Exception e) { //Silent Fail } return false; } } </code></pre>
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    1. COI think you must post some code.At least of starting activity from Main Activity. And onCreate() of second activity
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      1. USMysticMagicϡ
    2. COIt won't randomly decide to exit; I know of only three things that can occur 1) Exception (should be in logcat) 2) normal return (e.g. `return` or run-off-end) or 3) process is killed (which should not happen).
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    3. COThat being said, I have also heard to issues caused by passing a *negative* value to `startActivityForResult` or calling `finish` in onCreate (this won't necessarily change any of the exit points, but may lead to other interactions)
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