actionBar.setNavigationMode(ActionBar.NAVIGATION_MODE_TABS) deprecated

Question

I\'m following the tutorial https://www.youtube.com/watch?v=VVahIc8yENk and I\'m getting the error

java.lang.NullPointerException: Attempt to invoke

Answer 1

finally i found answer. 1st your android sdk

it must higher than 11. 2nd your theme must have actionbar like

android:theme="Theme.AppCompat"

3rd don't use this code in your activity

requestWindowFeature(Window.FEATURE_NO_TITLE);

4th instead of import android.support.v4.app.ActionBar use import android.support.v7.app.ActionBar in your activity

5th change this actionBar=getActionBar(); to actionbar=getSupportActionBar();