Android ActionBar error - android-activity

Question

package mavilla.paavaiinstitutions;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import android.app.ActionBar;
import android.app.Activity;
import android.os.Bundle;
import android.support.v4.app.ActionBarDrawerToggle;
import android.support.v4.app.FragmentManager;
import android.support.v4.app.FragmentTransaction;
import android.support.v4.widget.DrawerLayout;
import android.support.v7.app.ActionBarActivity;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.LinearLayout;
import android.widget.ListView;
import android.widget.SimpleAdapter;
import android.widget.Toast;
public class MainActivity extends Activity {
int mPosition = -1;
String mTitle = "";
// Array of strings storing country names
String[] mCountries ;
// Array of integers points to images stored in /res/drawable-ldpi/
int[] mFlags = new int[]{
R.drawable.home,
R.drawable.about,
R.drawable.ins,
R.drawable.campus,
R.drawable.compass,
R.drawable.gallery,
R.drawable.cap,
R.drawable.alumini,
R.drawable.tieup,
R.drawable.contact
};
// Array of strings to initial counts
String[] mCount = new String[]{
"", "", "", "", "",
"", "", "", "", "" };
private DrawerLayout mDrawerLayout;
private ListView mDrawerList;
private ActionBarDrawerToggle mDrawerToggle;
private LinearLayout mDrawer ;
private List<HashMap<String,String>> mList ;
private SimpleAdapter mAdapter;
final private String COUNTRY = "country";
final private String FLAG = "flag";
final private String COUNT = "count";
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
// Getting an array of country names
mCountries = getResources().getStringArray(R.array.countries);
// Title of the activity
mTitle = (String)getTitle();
// Getting a reference to the drawer listview
mDrawerList = (ListView) findViewById(R.id.drawer_list);
// Getting a reference to the sidebar drawer ( Title + ListView )
mDrawer = ( LinearLayout) findViewById(R.id.drawer);
// Each row in the list stores country name, count and flag
mList = new ArrayList<HashMap<String,String>>();
for(int i=0;i<10;i++){
HashMap<String, String> hm = new HashMap<String,String>();
hm.put(COUNTRY, mCountries[i]);
hm.put(COUNT, mCount[i]);
hm.put(FLAG, Integer.toString(mFlags[i]) );
mList.add(hm);
}
// Keys used in Hashmap
String[] from = { FLAG,COUNTRY,COUNT };
// Ids of views in listview_layout
int[] to = { R.id.flag , R.id.country , R.id.count};
// Instantiating an adapter to store each items
// R.layout.drawer_layout defines the layout of each item
mAdapter = new SimpleAdapter(this, mList, R.layout.drawer_layout, from, to);
// Getting reference to DrawerLayout
mDrawerLayout = (DrawerLayout)findViewById(R.id.drawer_layout);
// Creating a ToggleButton for NavigationDrawer with drawer event listener
mDrawerToggle = new ActionBarDrawerToggle(this, mDrawerLayout, R.drawable.ic_drawer , R.string.drawer_open,R.string.drawer_close){
/** Called when drawer is closed */
public void onDrawerClosed(View view) {
highlightSelectedCountry();
supportInvalidateOptionsMenu();
}
/** Called when a drawer is opened */
public void onDrawerOpened(View drawerView) {
getSupportActionBar().setTitle("Select a Country");
supportInvalidateOptionsMenu();
}
};
// Setting event listener for the drawer
mDrawerLayout.setDrawerListener(mDrawerToggle);
// ItemClick event handler for the drawer items
mDrawerList.setOnItemClickListener(new OnItemClickListener() {
#Override
public void onItemClick(AdapterView<?> arg0, View arg1, int position,
long arg3) {
// Increment hit count of the drawer list item
incrementHitCount(position);
if(position < 5) { // Show fragment for countries : 0 to 4
showFragment(position);
}else{ // Show message box for countries : 5 to 9
Toast.makeText(getApplicationContext(), mCountries[position], Toast.LENGTH_LONG).show();
}
// Closing the drawer
mDrawerLayout.closeDrawer(mDrawer);
}
});
// Enabling Up navigation
getSupportActionBar().setDisplayHomeAsUpEnabled(true);
getSupportActionBar().setDisplayShowHomeEnabled(true);
// Setting the adapter to the listView
mDrawerList.setAdapter(mAdapter);
}
#Override
protected void onPostCreate(Bundle savedInstanceState) {
super.onPostCreate(savedInstanceState);
mDrawerToggle.syncState();
}
#Override
public boolean onOptionsItemSelected(MenuItem item) {
if (mDrawerToggle.onOptionsItemSelected(item)) {
return true;
}
return super.onOptionsItemSelected(item);
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.menu_main, menu);
return true;
}
public void incrementHitCount(int position){
HashMap<String, String> item = mList.get(position);
String count = item.get(COUNT);
item.remove(COUNT);
if(count.equals("")){
count = " 1 ";
}else{
int cnt = Integer.parseInt(count.trim());
cnt ++;
count = " " + cnt + " ";
}
item.put(COUNT, count);
mAdapter.notifyDataSetChanged();
}
public void showFragment(int position){
//Currently selected country
mTitle = mCountries[position];
// Creating a fragment object
CountryFragment cFragment = new CountryFragment();
// Creating a Bundle object
Bundle data = new Bundle();
// Setting the index of the currently selected item of mDrawerList
data.putInt("position", position);
// Setting the position to the fragment
cFragment.setArguments(data);
// Getting reference to the FragmentManager
FragmentManager fragmentManager = getSupportFragmentManager();
// Creating a fragment transaction
FragmentTransaction ft = fragmentManager.beginTransaction();
// Adding a fragment to the fragment transaction
ft.replace(R.id.content_frame, cFragment);
// Committing the transaction
ft.commit();
}
// Highlight the selected country : 0 to 4
public void highlightSelectedCountry(){
int selectedItem = mDrawerList.getCheckedItemPosition();
if(selectedItem > 4)
mDrawerList.setItemChecked(mPosition, true);
else
mPosition = selectedItem;
if(mPosition!=-1)
getSupportActionBar().setTitle(mCountries[mPosition]);
}
}
i have extended Main Activity from Activity as shown to apply custom theme.
But I'm getting error below in actionBar code:
getSupportActionBar()
// Enabling Up navigation
getSupportActionBar().setDisplayHomeAsUpEnabled(true);
getSupportActionBar().setDisplayShowHomeEnabled(true);
Please help me as i am very new in stackoverflow and android..thanks in advance.

Answer 1

You are no longer using the support ActionBarActivity, but the normal Android Activity.
Thats why instead of
getSupportActionBar() you have to call getActionBar()
supportInvalidateOptionsMenu() you have to call invalidateOptionsMenu()
getSupportFragmentManager() you have to call getFragmentManager()
and so on..