App crash when I try to open Main2Activity with FloatingActionButton

Question

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

    Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
    setSupportActionBar(toolbar);

    final FloatingActionButton fab = (FloatingActionButton) findViewById(R.id.fab);
    fab.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View view) {
            Intent intent = new Intent(fab.getContext(), Main2Activity.class);
            startActivity(intent);
        }
    });

I tried too much times different ways but I am a new developer.

Look at [the stack trace](http://stackoverflow.com/questions/23353173) to determine the cause of the crash. — Mike M., May 27 '18 at 01:31

score 0 · Accepted Answer · answered May 28 '18 at 06:49

    <android.support.design.widget.FloatingActionButton
        android:id="@+id/fab"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="end|bottom"
        android:src="@drawable/ic_my_icon"
        android:layout_margin="16dp" />


  FloatingActionButton fab = findViewById(R.id.fab);
    fab.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View view) {
           Intent intent = new Intent(getApplicationContex(), Main2Activity.class);
        startActivity(intent);
        }
    });

This is work for me maybe helps you.

App crash when I try to open Main2Activity with FloatingActionButton

1 Answers1