Android, How to Remove "NullPointerException" coming in onClick method

Here i wrote some code, and i want to call a method of other class from onClick() and getting NPE in "new Start().moreApplication(feedsId);" line..

        final TextView feeds=(TextView)findViewById(R.id.more_feeds);
    feeds.setOnClickListener(new View.OnClickListener() {
        public void onClick(View arg0) {
            Log.e("MoreChoices","onclick---------");
            final int feedsId= feeds.getId();
            Log.e("MoreChoices","onclick----After initialization of id--------");
            new Start().moreApplication(feedsId);
            Log.e("MoreChoices","onclick----------------After calling--------");
        }
    });

Start.java is my an other Activity class, and i have one in Start.java, and i want to call that method from other class with using this code开发者_Go百科..

Please tell why i am getting NPE in "new Start().moreApplication(feedsId);" line...

Thanks in Advance please guide me....

Please, take some time reading anddev book, a very good place to start android development.

Read pages 50+ and you will understand that your not doing the right thing to create activities and pass data from one to another.

You should

• startActivity by using either an intent or the class of this activity
• pass data from your activity to the new one using intent's extra parameters.

Regards, Stéphane

replace this line

final TextView feeds=(TextView)findViewById(R.id.more_feeds);

by

final TextView feeds=(TextView)this.findViewById(R.id.more_feeds);

I hope you got solution .

I think u need to get the View ID which u have clicked the enhanced code look like

final TextView feeds=(TextView)findViewById(R.id.more_feeds);
feeds.setOnClickListener(new View.OnClickListener() {
    public void onClick(View arg0) {
        Log.e("MoreChoices","onclick---------");
        final int feedsId= arg0.getId();
        Log.e("MoreChoices","onclick----After initialization of id--------");
        new Start().moreApplication(feedsId);
        Log.e("MoreChoices","onclick----------------After calling--------");
    }
});