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Android

Posted by Pouya Amirahmadi
Pouya Amirahmadi
9,167 Points

MainActivity gets killed and URI gets null, My solution

Hi guys I hope you are in "Self-Destructing app" section. As I was testing , I just noticed that on my Samsung Galaxy Note 3 device, whenever Camera gets started from MainActivity , MainACtivity gets completly destroyed so the mMediaUril would be null. here is the solution (using instance to save your data during Activity destroy/recreation).

 public static final String KEY_URI_INSTANCE   = "keyUriInstance";

@Override
protected void onSaveInstanceState(Bundle outState) {
    super.onSaveInstanceState(outState);

    if (mMediaUri != null)
        outState.putString(KEY_URI_INSTANCE, mMediaUri.toString());
}
@Override
protected void onRestoreInstanceState(Bundle savedInstanceState) {
    super.onRestoreInstanceState(savedInstanceState);

    if (savedInstanceState.containsKey(KEY_URI_INSTANCE))
        mMediaUri = Uri.parse(savedInstanceState.getString(KEY_URI_INSTANCE));
}

You can search in android developer to find out how onSaveInstanceState and onRestoreInstanceState works Have fun guys ;)