Adding submenu : Menu « UI « Android

1. Android
2. UI
3. Menu

Adding submenu

  

package app.test;

import android.app.Activity;
import android.os.Bundle;
import android.view.ContextMenu;
import android.view.ContextMenu.ContextMenuInfo;
import android.view.Menu;
import android.view.MenuInflater;
import android.view.MenuItem;
import android.view.SubMenu;
import android.view.View;
import android.widget.TextView;

public class Test extends Activity {
  Menu myMenu = null;

  @Override
  public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.main);
    registerForContextMenu(this.getTextView());
  }

  @Override
  public boolean onCreateOptionsMenu(Menu menu) {
    super.onCreateOptionsMenu(menu);
    this.myMenu = menu;
    addRegularMenuItems(menu);
    add5SecondaryMenuItems(menu);
    this.addSubMenu(menu);
    return true;
  }

  private void addRegularMenuItems(Menu menu) {
    int base = Menu.FIRST; // value is 1

    MenuItem item1 = menu.add(base, base, base, "append");
    menu.add(base, base + 1, base + 1, "item 2");
    menu.add(base, base + 2, base + 2, "clear");

    menu.add(base, base + 3, base + 3, "hide secondary");
    menu.add(base, base + 4, base + 4, "show secondary");

    menu.add(base, base + 5, base + 5, "enable secondary");
    menu.add(base, base + 6, base + 6, "disable secondary");

    menu.add(base, base + 7, base + 7, "check secondary");
    MenuItem item8 = menu
        .add(base, base + 8, base + 8, "uncheck secondary");
    item1.setIcon(R.drawable.icon);
    item8.setIcon(R.drawable.icon);
  }

  private void add5SecondaryMenuItems(Menu menu) {
    int base = Menu.CATEGORY_SECONDARY;

    menu.add(base, base + 1, base + 1, "sec. item 1");
    menu.add(base, base + 2, base + 2, "sec. item 2");
    menu.add(base, base + 3, base + 3, "sec. item 3");
    menu.add(base, base + 3, base + 3, "sec. item 4");
    menu.add(base, base + 4, base + 4, "sec. item 5");
  }

  private void addSubMenu(Menu menu) {
    int base = Menu.FIRST + 100;
    SubMenu sm = menu.addSubMenu(base, base + 1, Menu.NONE, "submenu");
    MenuItem item1 = sm.add(base, base + 2, base + 2, "sub item1");

    sm.add(base, base + 3, base + 3, "sub item2");
    sm.add(base, base + 4, base + 4, "sub item3");
    item1.setIcon(R.drawable.icon);
    sm.setIcon(R.drawable.icon);
  }

  @Override
  public boolean onOptionsItemSelected(MenuItem item) {
    if (item.getItemId() == 1) {
      appendText("\nhello");
    } else if (item.getItemId() == 2) {
      appendText("\nitem2");
    } else if (item.getItemId() == 3) {
      emptyText();
    } else if (item.getItemId() == 4) {
      // hide secondary
      this.appendMenuItemText(item);
      this.myMenu.setGroupVisible(Menu.CATEGORY_SECONDARY, false);
    } else if (item.getItemId() == 5) {
      this.appendMenuItemText(item);
      this.myMenu.setGroupVisible(Menu.CATEGORY_SECONDARY, true);
    } else if (item.getItemId() == 6) {
      this.appendMenuItemText(item);
      this.myMenu.setGroupEnabled(Menu.CATEGORY_SECONDARY, true);
    } else if (item.getItemId() == 7) {
      this.appendMenuItemText(item);
      this.myMenu.setGroupEnabled(Menu.CATEGORY_SECONDARY, false);
    } else if (item.getItemId() == 8) {
      this.appendMenuItemText(item);
      this.myMenu.setGroupCheckable(Menu.CATEGORY_SECONDARY, true, false);
    } else if (item.getItemId() == 9) {
      this.appendMenuItemText(item);
      this.myMenu
          .setGroupCheckable(Menu.CATEGORY_SECONDARY, false, false);
    } else {
      this.appendMenuItemText(item);
    }
    return true;
  }

  @Override
  public void onCreateContextMenu(ContextMenu menu, View v,
      ContextMenuInfo menuInfo) {
    menu.setHeaderTitle("Sample menu");
    menu.add(200, 200, 200, "item1");
  }

  @Override
  public boolean onContextItemSelected(MenuItem item) {
    this.appendMenuItemText(item);
    return true;
  }

  private void loadXMLMenu(Menu menu) {
    MenuInflater inflater = getMenuInflater(); // from activity
    inflater.inflate(R.menu.my_menu, menu);
  }

  private TextView getTextView() {
    TextView tv = (TextView) this.findViewById(R.id.textViewId);
    return tv;
  }

  public void appendText(String text) {
    TextView tv = (TextView) this.findViewById(R.id.textViewId);
    tv.setText(tv.getText() + text);
  }

  private void appendMenuItemText(MenuItem menuItem) {
    String title = menuItem.getTitle().toString();
    TextView tv = (TextView) this.findViewById(R.id.textViewId);
    tv.setText(tv.getText() + "\n" + title + ":" + menuItem.getItemId());
  }

  private void emptyText() {
    TextView tv = (TextView) this.findViewById(R.id.textViewId);
    tv.setText("");
  }
}

//main.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="vertical"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    >
<TextView android:id="@+id/textViewId"  
    android:layout_width="fill_parent" 
    android:layout_height="wrap_content" 
    android:text="@string/hello"
    />
    
</LinearLayout>

//menu/my_menu.xml

<menu xmlns:android="http://schemas.android.com/apk/res/android">
    <!-- This group uses the default category. -->
    <group android:id="@+id/menuGroup_Main">

        <item android:id="@+id/menu_testPick"
            android:orderInCategory="5"
            android:title="Test Pick" />
            
        <item android:id="@+id/menu_testGetContent"
            android:orderInCategory="5"
            android:title="Test Get Content" />
            
        <item android:id="@+id/menu_clear"
            android:orderInCategory="10"
            android:title="clear" />
            
        <item android:id="@+id/menu_dial"
            android:orderInCategory="7"
            android:title="dial" />
            
        <item android:id="@+id/menu_test"
            android:orderInCategory="4"
            android:title="@+string/test" />
            
        <item android:id="@+id/menu_show_browser"
            android:orderInCategory="5"
            android:title="show browser" />
    </group>
</menu>

   
    
  

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