Setting TypeFace NullpointerException

Question

I want to add a TypeFace to my TextView. here's my Java code

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        TextView helptitle = (TextView)findViewById(R.id.title_help);
        Typeface typeface = Typeface.createFromAsset(getAssets(), "beyond_the_mountains.ttf");
        helptitle.setTypeface(typeface);
        setContentView(R.layout.activity_help);
}

but when i run the app, i get a log cat error

Caused by: java.lang.NullPointerException
    at com.example.enxin.crystallise.Help.onCreate(Help.java:15)

There are many kinds of NullPointerException so I'm not sure how to solve this

first make call setContentView(R.layout.activity_help); then findViewById. btw where did you put fonts file? — Siarhei, Jul 16 '16 at 14:42

score 2 · Answer 1 · edited Jul 17 '16 at 14:50

2

 //You have mistaken the order
 setContentView(R.layout.activity_help);    
 TextView helptitle = (TextView)findViewById(R.id.title_help);
 Typeface typeface = Typeface.createFromAsset(getAssets(),    "beyond_the_mountains.ttf");
 helptitle.setTypeface(typeface);

edited Jul 17 '16 at 14:50

En Xin

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answered Jul 16 '16 at 14:36

Cgx

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earthw0rmjim · Accepted Answer · 2016-07-16T19:27:34.617

The problem is you're calling findViewById() before setting the content view.

findViewById() implicitly calls getWindow() which is still null at that time.

Call setContentView() before initializing your View:

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_help);

    TextView helptitle = (TextView)findViewById(R.id.title_help);
    Typeface typeface = Typeface.createFromAsset(getAssets(), "beyond_the_mountains.ttf");
    helptitle.setTypeface(typeface);
}

Setting TypeFace NullpointerException

2 Answers2