LayoutParams crashes app

Asked Jan 23 '14 at 13:57

Active Jan 23 '14 at 15:48

Viewed 163 times

I have strange problem.

Using this code, I get crash when try to make new LayoutParams, before "Error 5".

    getScreenWidthAndHeight();
    Log.d("Error", "1");
    eField = (EditText)findViewById(R.id.emailField);
    Log.d("Error", "2");
    pField = (EditText)findViewById(R.id.passwordField);
    Log.d("Error", "3");
    signInButton = (Button)findViewById(R.id.singInButton); 
    Log.d("Error", "4");
    RelativeLayout.LayoutParams lParamsForEField = new RelativeLayout.LayoutParams(eField.getWidth(), eField.getHeight());
    Log.d("Error", "5");
    RelativeLayout.LayoutParams lParamsForPField = (LayoutParams) pField.getLayoutParams();
    Log.d("Error", "6");
    RelativeLayout.LayoutParams lParamsForSignInButton = (LayoutParams) signInButton.getLayoutParams();

CLOSED

Caused by: java.lang.NullPointerException

Problem was in trying to find element before set layout for content view.

edited Jan 23 '14 at 15:48

asked Jan 23 '14 at 13:57

Long Smith

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Can you post the stack trace? – Gil Vegliach Jan 23 '14 at 14:00
Just posted it. NullPointerException... very interesting. – Long Smith Jan 23 '14 at 14:04
Everything points that, but it is in main_activity.xml . Maybe problem hides in using several layouts for different screens. I just checked all ids in them. – Long Smith Jan 23 '14 at 14:11
Can view's ids have the same id name in layouts for different screens? For example in main_activity.xml for medium screen there is a button with id "sing_in" and in main_activity.xml for large screens? – Long Smith Jan 23 '14 at 14:14
You cut the log right at the point where the useful info begins =) Please, post the line just under "Caused by: java.lang.NullPointerException" – Gil Vegliach Jan 23 '14 at 14:19
post your import package code.. I think you import wrong layoutparams – Mehul Ranpara Jan 23 '14 at 14:21

LayoutParams crashes app

0 Answers0