Setting action bar elevation programmatically throws NullPointer exception

Question

After setting the elevation of the action bar programmatically, the code becomes highlighted in yellow and the warning below gets thrown. What can be done to remove this warning?

getSupportActionBar().setElevation(0);

Warning

Method invocation 'getSupportActionBar().setElevation(0);' may produce 'java.lang.NullPointerException'

Answer 1

Add a null check:

if(getSupportActionBar() != null) {
    getSupportActionBar().setElevation(0);
}

Answer 2

Try:


ActionBar actionBar = getSupportActionBar();
if(actionBar != null) {
   actionBar.setElevation(0);
}