ActionBar的用法

//ActionBar的方法
private void intiActionBar() {
ActionBar actionBar = getSupportActionBar();
actionBar.setDisplayHomeAsUpEnabled(true);
mToggle = new ActionBarDrawerToggle(this, dl_root, R.string.open, R.string.close);
mToggle.syncState();
dl_root.addDrawerListener(mToggle);
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
if(mToggle.onOptionsItemSelected(item)){
return true;
}
return super.onOptionsItemSelected(item);
}
//
tab.setDrawerLockMode(DrawerLayout.LOCK_MODE_UNLOCKED);
intiActionBar();