CODEWITHSUNDEEP
androidandroid-emulatorandroid-intentandroid-widgetandroid-button
B. Clay Shannon-B. Crow Raven
B. Clay Shannon-B. Crow Raven

Reputation: 10247

Yet another try - button click is making my widgets vanish

When I comment out the line setting the button's OnClickHandler, the widgets in the Activity display fine; when that line is not commented out, though, all that displays is the project name in the strip at the top. ???

import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;

public class OnDemandAndAutomatic_Activity extends Activity implements View.OnClickListener {

    Button buttonAuthorizeUsers;

    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.ondemandandautomatic_activity);

        buttonAuthorizeUsers = (Button) findViewById(R.id.buttonAuthorizeUsers);
        //buttonAuthorizeUsers.setOnClickListener(this);
    }

    @Override
    public void onClick(View v) {
        // TODO Auto-generated method stub
        Intent configure = new  Intent(OnDemandAndAutomatic_Activity.this, Configure_Activity.class);  
        OnDemandAndAutomatic_Activity.this.startActivity(configure);
    }

}

Upvotes: 0

Views: 58

Answers (1)

LuxuryMode
LuxuryMode

Reputation: 33741

It's not the button click that's making the crash. Since setting the listener is what causes the crash, then buttonAuthorizeUsers must be null and if you call methods on a null object, you'll get a crash.

Upvotes: 1

Related Questions