Demonstration of displaying a context menu from a fragment. : Menu « UI « Android

1. Android
2. UI
3. Menu

Demonstration of displaying a context menu from a fragment.

  
/*
 * Copyright (C) 2010 The Android Open Source Project
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.example.android.apis.app;

import com.example.android.apis.R;

import android.app.Activity;
import android.app.Fragment;
import android.os.Bundle;
import android.util.Log;
import android.view.ContextMenu;
import android.view.LayoutInflater;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.ViewGroup;
import android.view.ContextMenu.ContextMenuInfo;

/**
 * Demonstration of displaying a context menu from a fragment.
 */
public class FragmentContextMenu extends Activity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);

        // Create the list fragment and add it as our sole content.
        ContextMenuFragment content = new ContextMenuFragment();
        getFragmentManager().beginTransaction().add(android.R.id.content, content).commit();
    }

    public static class ContextMenuFragment extends Fragment {

        @Override
        public View onCreateView(LayoutInflater inflater, ViewGroup container,
                Bundle savedInstanceState) {
            View root = inflater.inflate(R.layout.fragment_context_menu, container, false);
            registerForContextMenu(root.findViewById(R.id.long_press));
            return root;
        }

        @Override
        public void onCreateContextMenu(ContextMenu menu, View v, ContextMenuInfo menuInfo) {
            super.onCreateContextMenu(menu, v, menuInfo);
            menu.add(Menu.NONE, R.id.a_item, Menu.NONE, "Menu A");
            menu.add(Menu.NONE, R.id.b_item, Menu.NONE, "Menu B");
        }

        @Override
        public boolean onContextItemSelected(MenuItem item) {
            switch (item.getItemId()) {
                case R.id.a_item:
                    Log.i("ContextMenu", "Item 1a was chosen");
                    return true;
                case R.id.b_item:
                    Log.i("ContextMenu", "Item 1b was chosen");
                    return true;
            }
            return super.onContextItemSelected(item);
        }
    }
}
//fragment_context_menu.xml

<?xml version="1.0" encoding="utf-8"?>
<!-- Copyright (C) 2010 The Android Open Source Project

     Licensed under the Apache License, Version 2.0 (the "License");
     you may not use this file except in compliance with the License.
     You may obtain a copy of the License at
  
          http://www.apache.org/licenses/LICENSE-2.0
  
     Unless required by applicable law or agreed to in writing, software
     distributed under the License is distributed on an "AS IS" BASIS,
     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     See the License for the specific language governing permissions and
     limitations under the License.
-->

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="vertical"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:padding="8dp">

    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="center"
        android:textAppearance="?android:attr/textAppearanceMedium"
        android:text="@string/fragment_context_menu_msg" />

    <Button android:id="@+id/long_press"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="center"
        android:text="@string/long_press">
        <requestFocus />
    </Button>
    
</LinearLayout>

   
    
  

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