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Id
8462151
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0
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2011-12-11T05:24:01.593
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2011-12-18T04:56:20.293
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2011-12-18T04:56:20.293
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525978
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text
Body
For primitive values, you should use <code>onSaveInstanceState</code>. For restoring you can use <code>onRestoreInstanceState</code> or you can some code in <code>onCreate</code> like this: <pre><code>if(savedInstanceState != null) { // restore old state } else { // a fresh start } </code></pre> Now for restoring big objects like <code>Bitmap</code> etc if they are not expensive to create and doesn't make your UI sluggish, create them again on restore. If you do not want to that then use <code>onRetainNonConfigurationInstance</code> and code will look like this: <pre><code>@Override public Object onRetainNonConfigurationInstance () { return bmp; } @Override public void onCreate() { bmp = (Bitmap)getLastNonConfigurationInstance(); } </code></pre> WARNING: This api is deprecate, you might use it on old platforms. I put it here for illustration purpose. The new way to do this is more involving. Here is detailed ref: <a href="http://developer.android.com/reference/android/app/Activity.html#getLastNonConfigurationInstance%28%29" rel="nofollow">getLastNonConfigurationInstance</a> <a href="http://developer.android.com/reference/android/app/Activity.html#onRetainNonConfigurationInstance%28%29" rel="nofollow">onRetainNonConfigurationInstance</a> Recommended soln for new api levels 11 and above: "Use the new Fragment API setRetainInstance(boolean) instead; this is also available on older platforms through the Android compatibility package." snippet from the doc when you click on the links above. So, you will create your bitmaps inside the fragment and call <code>setRetainInstance</code> on fragment so that fragment and its content (in your case bitmap) will be retained accross config change. Ref: <a href="http://developer.android.com/reference/android/app/Fragment.html#setRetainInstance%28boolean%29" rel="nofollow">setRetainInstance</a>
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1. POAndroid onSaveInstanceState and starting sub-activities.
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1. UShavexz
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1. UShavexz
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1. POAndroid onSaveInstanceState and starting sub-activities.
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1. COHi there, thanks for your answer. It looks like what I need to do is something similar to onRetainNonConfigurationInstance - what's the non-deprecated approach?
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