菜单

public class MainActivity extends Activity {

 @Override

 protected void onCreate(Bundle savedInstanceState) {

  super.onCreate(savedInstanceState);

  setContentView(R.layout.activity_main);

 }

 @Override

 public boolean onCreateOptionsMenu(Menu menu) {

  // Inflate the menu; this adds items to the action bar if it is present.

  getMenuInflater().inflate(R.menu.main, menu);

  return true;

 }

 @Override

 public boolean onOptionsItemSelected(MenuItem item) {

  int id = item.getItemId();

  switch (id) {

  case R.id.item1:

   Toast.makeText(MainActivity.this, item.getTitle(), 0).show();

   break;

  case R.id.item2:

   Toast.makeText(MainActivity.this, item.getTitle(), 0).show();

   break;

  case R.id.item3:

   Toast.makeText(MainActivity.this, item.getTitle(), 0).show();

   break;

  case R.id.item4:

   Toast.makeText(MainActivity.this, item.getTitle(), 0).show();

   break;

  case R.id.item5:

   Toast.makeText(MainActivity.this, item.getTitle(), 0).show();

   break;

  }

  return super.onOptionsItemSelected(item);

 }

}

    <item

        android:id="@+id/item1"

        android:title="我是菜单1"/>

    <item

        android:id="@+id/item2"

        android:title="我是菜单2"/>

    <item

        android:id="@+id/item3"

        android:title="我是菜单3"/>

    <item

        android:id="@+id/item4"

        android:title="我是菜单4"/>

    <item

        android:id="@+id/item5"

        android:title="我是菜单5"/>

原文地址:https://www.cnblogs.com/freenovo/p/4469805.html