findViewById returns null ???

mawa · by **mawa** » Fri Feb 29, 2008 10:34 am

I debugged into the Notepad3 (tutorial exercise) and noticed, that #findViewById returns null within the onCreate method. Nevertheless the Notepad3 sample runs fine. Any explanations ?

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    public void onCreate(Bundle icicle) {
 
        View myView;
 
        super.onCreate(icicle);
 
        myView = findViewById(R.layout.notes_list); //breakpoint: myView is null
 
        myView = findViewById(R.layout.notes_row); //breakpoint: myView is null
 
        setContentView(R.layout.notes_list);
 
        myView = findViewById(R.layout.notes_list); //breakpoint: myView is null
 
        myView = findViewById(R.layout.notes_row); //breakpoint: myView is null
 
        dbHelper = new DBHelper(this);
 
        fillData();
 
    }
 
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plusminus · by **plusminus** » Fri Feb 29, 2008 5:00 pm

Hello mawa,

those examples are probably not yet updated to sdk-version m5.

Go to the notes_list.xml and replace

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...id="...
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with

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...android:id="...
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That should work.

Regards,
plusminus

findViewById returns null ???

findViewById returns null ???

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