有人可以帮我实现一个操作栏吗？

Question

有人可以帮助我从头到尾实现一个操作栏，包括帮助我在我的应用程序中使用操作栏吗？

Answer 1

import android.app.Activity;
import android.os.Bundle;
import android.app.ActionBar;
import android.view.Menu;
import android.view.MenuItem;
import android.widget.Toast;

public class MainActivity extends Activity {

 /** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.main);
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
    super.onCreateOptionsMenu(menu);
    CreateMenu(menu);
    return true;
}
@Override
public boolean onOptionsItemSelected(MenuItem item)
{
    return MenuChoice(item);
}

private void CreateMenu(Menu menu)
{
    MenuItem mnu1 = menu.add(0, 0, 0, "Item 1");
    {
        mnu1.setAlphabeticShortcut('a');
        mnu1.setIcon(R.drawable.ic_launcher);
    }
    MenuItem mnu2 = menu.add(0, 1, 1, "Item 2");
    {
        mnu2.setAlphabeticShortcut('b');
        mnu2.setIcon(R.drawable.ic_launcher);
    }
    MenuItem mnu3 = menu.add(0, 2, 2, "Item 3");
    {
        mnu3.setAlphabeticShortcut('c');
        mnu3.setIcon(R.drawable.ic_launcher);
    }
    MenuItem mnu4 = menu.add(0, 3, 3, "Item 4");
    {
        mnu4.setAlphabeticShortcut('d');
    }
    menu.add(0, 3, 3, "Item 5");
    menu.add(0, 3, 3, "Item 6");
    menu.add(0, 3, 3, "Item 7");
}
private boolean MenuChoice(MenuItem item)
{
    switch (item.getItemId()) {
    case 0:
        Toast.makeText(this, "You clicked on Item 1",
                Toast.LENGTH_LONG).show();
        return true;
    case 1:
        Toast.makeText(this, "You clicked on Item 2",
                Toast.LENGTH_LONG).show();
        return true;
    case 2:
        Toast.makeText(this, "You clicked on Item 3",
                Toast.LENGTH_LONG).show();
        return true;
    case 3:
        Toast.makeText(this, "You clicked on Item 4",
                Toast.LENGTH_LONG).show();
        return true;
    case 4:
        Toast.makeText(this, "You clicked on Item 5",
                Toast.LENGTH_LONG).show();
        return true;
    case 5:
        Toast.makeText(this, "You clicked on Item 6",
                Toast.LENGTH_LONG).show();
        return true;
    case 6:
        Toast.makeText(this, "You clicked on Item 7",
                Toast.LENGTH_LONG).show();
        return true;
    }
    return false;
}
}