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POAndroid - How To Override the "Back" button so it doesn't Finish() my Activity?
 

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  1. POAndroid - How To Override the "Back" button so it doesn't Finish() my Activity?
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    <p>I currently have an Activity that when it gets displayed a Notification will also get displayed in the Notification bar.</p> <p>This is so that when the User presses home and the Activity gets pushed to the background they can get back to the Activity via the Notification.</p> <p>The problem arises when a User presses the back button, my Activity gets destroyed but the Notification remains as I want the user to be able to press back but still be able to get to the Activity via the Notification. But when a USER tries this I get Null Pointers as its trying to start a new activity rather than bringing back the old one.</p> <p>So essentially I want the Back button to act the exact same as the Home button and here is how I have tried so far:</p> <hr> <pre><code> @Override public boolean onKeyDown(int keyCode, KeyEvent event) { if (Integer.parseInt(android.os.Build.VERSION.SDK) &lt; 5 &amp;&amp; keyCode == KeyEvent.KEYCODE_BACK &amp;&amp; event.getRepeatCount() == 0) { Log.d("CDA", "onKeyDown Called"); onBackPressed(); } return super.onKeyDown(keyCode, event); } public void onBackPressed() { Log.d("CDA", "onBackPressed Called"); Intent setIntent = new Intent(Intent.ACTION_MAIN); setIntent.addCategory(Intent.CATEGORY_HOME); setIntent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK); startActivity(setIntent); return; } </code></pre> <hr> <p>However the above code still seems to allow my Activity to be destroyed, How can I stop my Activity from being destroyed when the back button is pressed?</p>
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    1. COThere is a similar question: http://stackoverflow.com/questions/2459848/android-prompt-user-to-save-changes-when-back-button-is-pressed
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