Merge "appcompat: Add samples for options menu usage with fragments." into jb-mr2-dev

samples/Support7Demos/AndroidManifest.xml

@@ -134,5 +134,14 @@
             </intent-filter>
         </activity>
 
+        <activity android:name=".app.ActionBarFragmentMenu"
+                android:label="@string/action_bar_fragment_menu"
+                android:theme="@style/Theme.AppCompat">
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN" />
+                <category android:name="com.example.android.supportv7.SAMPLE_CODE" />
+            </intent-filter>
+        </activity>
+
     </application>
 </manifest>

samples/Support7Demos/res/layout/action_bar_fragment_menu.xml

@@ -0,0 +1,69 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright (C) 2013 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/action_bar_fragment_menu_msg" />
+
+    <CheckBox android:id="@+id/menu1"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_gravity="center"
+        android:checked="true"
+        android:text="@string/action_bar_fragment_menu1">
+    </CheckBox>
+
+    <CheckBox android:id="@+id/menu2"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_gravity="center"
+        android:checked="true"
+        android:text="@string/action_bar_fragment_menu2">
+    </CheckBox>
+
+    <CheckBox android:id="@+id/menu3"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_gravity="center"
+        android:checked="true"
+        android:text="@string/action_bar_fragment_menu3">
+    </CheckBox>
+
+    <CheckBox android:id="@+id/has_options_menu"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_gravity="center"
+        android:checked="true"
+        android:text="@string/action_bar_fragment_has_options_menu">
+    </CheckBox>
+
+    <CheckBox android:id="@+id/menu_visibility"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_gravity="center"
+        android:checked="true"
+        android:text="@string/action_bar_fragment_menu_visibility">
+    </CheckBox>
+</LinearLayout>

samples/Support7Demos/res/values/strings.xml

@@ -77,4 +77,13 @@
     <string name="btn_toggle_tabs">Toggle tab mode</string>
     <string name="btn_remove_all_tabs">Remove all tabs</string>
 
+    <string name="action_bar_fragment_menu">AppCompat/Action Bar/Fragment Menu</string>
+    <string name="action_bar_fragment_menu_msg">Build menus from three fragments, the last one
+        nested, allowing you to hide them to remove them...</string>
+    <string name="action_bar_fragment_menu1">Show fragment 1</string>
+    <string name="action_bar_fragment_menu2">Show fragment 2</string>
+    <string name="action_bar_fragment_menu3">Show nested fragment (within fragment 2)</string>
+    <string name="action_bar_fragment_has_options_menu">Set has options menu to true</string>
+    <string name="action_bar_fragment_menu_visibility">Set menu visibility to true</string>
+
 </resources>

samples/Support7Demos/src/com/example/android/supportv7/app/ActionBarFragmentMenu.java

@@ -0,0 +1,249 @@
+/*
+ * Copyright (C) 2013 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.supportv7.app;
+
+import com.example.android.supportv7.R;
+
+import android.os.Bundle;
+import android.support.v4.app.Fragment;
+import android.support.v4.app.FragmentManager;
+import android.support.v4.app.FragmentTransaction;
+import android.support.v7.app.ActionBarActivity;
+import android.support.v7.app.ActionBarFragment;
+import android.support.v7.app.ActionBarFragmentCallbacks;
+import android.support.v7.view.Menu;
+import android.support.v7.view.MenuInflater;
+import android.support.v7.view.MenuItem;
+import android.view.View;
+import android.view.View.OnClickListener;
+import android.widget.CheckBox;
+import android.widget.Toast;
+
+/**
+ * Demonstrates how fragments can participate in the options menu.
+ */
+public class ActionBarFragmentMenu extends ActionBarActivity {
+    MenuFragment mFragment1;
+    Menu2Fragment mFragment2;
+    CheckBox mCheckBox1;
+    CheckBox mCheckBox2;
+    CheckBox mCheckBox3;
+    CheckBox mHasOptionsMenu;
+    CheckBox mMenuVisibility;
+
+    // Update fragment visibility when check boxes are changed.
+    final OnClickListener mClickListener = new OnClickListener() {
+        @Override
+        public void onClick(View v) {
+            updateFragmentVisibility();
+        }
+    };
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.action_bar_fragment_menu);
+
+        // Make sure the two menu fragments are created.
+        FragmentManager fm = getSupportFragmentManager();
+        FragmentTransaction ft = fm.beginTransaction();
+        mFragment1 = (MenuFragment)fm.findFragmentByTag("f1");
+        if (mFragment1 == null) {
+            mFragment1 = new MenuFragment();
+            ft.add(mFragment1, "f1");
+        }
+        mFragment2 = (Menu2Fragment)fm.findFragmentByTag("f2");
+        if (mFragment2 == null) {
+            mFragment2 = new Menu2Fragment();
+            ft.add(mFragment2, "f2");
+        }
+        ft.commit();
+
+        // Watch check box clicks.
+        mCheckBox1 = (CheckBox)findViewById(R.id.menu1);
+        mCheckBox1.setOnClickListener(mClickListener);
+        mCheckBox2 = (CheckBox)findViewById(R.id.menu2);
+        mCheckBox2.setOnClickListener(mClickListener);
+        mCheckBox3 = (CheckBox)findViewById(R.id.menu3);
+        mCheckBox3.setOnClickListener(mClickListener);
+        mHasOptionsMenu = (CheckBox)findViewById(R.id.has_options_menu);
+        mHasOptionsMenu.setOnClickListener(mClickListener);
+        mMenuVisibility = (CheckBox)findViewById(R.id.menu_visibility);
+        mMenuVisibility.setOnClickListener(mClickListener);
+
+        // Make sure fragments start out with correct visibility.
+        updateFragmentVisibility();
+    }
+
+    @Override
+    protected void onRestoreInstanceState(Bundle savedInstanceState) {
+        super.onRestoreInstanceState(savedInstanceState);
+        // Make sure fragments are updated after check box view state is restored.
+        updateFragmentVisibility();
+    }
+
+    // Update fragment visibility based on current check box state.
+    void updateFragmentVisibility() {
+        // Update top level fragments.
+        FragmentTransaction ft = getSupportFragmentManager().beginTransaction();
+        if (mCheckBox1.isChecked()) ft.show(mFragment1);
+        else ft.hide(mFragment1);
+        if (mCheckBox2.isChecked()) ft.show(mFragment2);
+        else ft.hide(mFragment2);
+        ft.commit();
+
+        mFragment1.setHasOptionsMenu(mHasOptionsMenu.isChecked());
+        mFragment1.setMenuVisibility(mMenuVisibility.isChecked());
+        mFragment2.setHasOptionsMenu(mHasOptionsMenu.isChecked());
+        mFragment2.setMenuVisibility(mMenuVisibility.isChecked());
+
+        // Update the nested fragment.
+        if (mFragment2.mFragment3 != null) {
+            ft = mFragment2.getFragmentManager().beginTransaction();
+            if (mCheckBox3.isChecked()) ft.show(mFragment2.mFragment3);
+            else ft.hide(mFragment2.mFragment3);
+            ft.commit();
+
+            mFragment2.mFragment3.setHasOptionsMenu(mHasOptionsMenu.isChecked());
+            mFragment2.mFragment3.setMenuVisibility(mMenuVisibility.isChecked());
+        }
+    }
+
+    /**
+     * A fragment that displays a menu.  This fragment happens to not
+     * have a UI (it does not implement onCreateView), but it could also
+     * have one if it wanted.
+     */
+    public static class MenuFragment extends ActionBarFragment {
+        @Override
+        public void onCreate(Bundle savedInstanceState) {
+            super.onCreate(savedInstanceState);
+            setHasOptionsMenu(true);
+        }
+
+        @Override
+        public void onCreateSupportOptionsMenu(Menu menu, MenuInflater inflater) {
+            menu.add("Menu 1a").setShowAsAction(MenuItem.SHOW_AS_ACTION_IF_ROOM);
+            menu.add("Menu 1b").setShowAsAction(MenuItem.SHOW_AS_ACTION_IF_ROOM);
+            super.onCreateSupportOptionsMenu(menu, inflater);
+        }
+
+        @Override
+        public boolean onSupportOptionsItemSelected(MenuItem item) {
+            if (item.getTitle().equals("Menu 1a")) {
+                Toast.makeText(getActivity(), "Selected Menu 1a.", Toast.LENGTH_SHORT).show();
+                return true;
+            }
+            if (item.getTitle().equals("Menu 1b")) {
+                Toast.makeText(getActivity(), "Selected Menu 1b.", Toast.LENGTH_SHORT).show();
+                return true;
+            }
+            return super.onSupportOptionsItemSelected(item);
+        }
+    }
+
+    /**
+     * Second fragment with a menu.
+     * This one demonstrates that you can extend any other fragment as long
+     * as you implement the callback interface.
+     */
+    public static class Menu2Fragment extends Fragment
+            implements ActionBarFragmentCallbacks {
+        Menu3Fragment mFragment3;
+
+        @Override
+        public void onCreate(Bundle savedInstanceState) {
+            super.onCreate(savedInstanceState);
+            setHasOptionsMenu(true);
+
+            FragmentManager fm = getChildFragmentManager();
+            FragmentTransaction ft = fm.beginTransaction();
+            mFragment3 = (Menu3Fragment)fm.findFragmentByTag("f3");
+            if (mFragment3 == null) {
+                mFragment3 = new Menu3Fragment();
+                ft.add(mFragment3, "f3");
+            }
+            ft.commit();
+        }
+
+        @Override
+        public void onCreateSupportOptionsMenu(Menu menu, MenuInflater inflater) {
+            menu.add("Menu 2").setShowAsAction(MenuItem.SHOW_AS_ACTION_IF_ROOM);
+        }
+
+        @Override
+        public void onDestroySupportOptionsMenu() {
+        }
+
+        @Override
+        public void onPrepareSupportOptionsMenu(Menu menu) {
+        }
+
+        @Override
+        public boolean onSupportOptionsItemSelected(MenuItem item) {
+            if (item.getTitle().equals("Menu 2")) {
+                Toast.makeText(getActivity(), "Selected Menu 2.", Toast.LENGTH_SHORT).show();
+                return true;
+            }
+            return false;
+        }
+    }
+
+    /**
+     * Third fragment with a menu.
+     * This one is nested within the second.
+     */
+    public static class Menu3Fragment extends ActionBarFragment {
+        @Override
+        public void onCreate(Bundle savedInstanceState) {
+            super.onCreate(savedInstanceState);
+            setHasOptionsMenu(true);
+        }
+
+        @Override
+        public void onCreateSupportOptionsMenu(Menu menu, MenuInflater inflater) {
+            Toast.makeText(getActivity(), "Created nested fragment's menu.",
+                    Toast.LENGTH_SHORT).show();
+            inflater.inflate(R.menu.display_options_actions, menu);
+            super.onCreateSupportOptionsMenu(menu, inflater);
+        }
+
+        @Override
+        public void onDestroySupportOptionsMenu() {
+            Toast.makeText(getActivity(), "Destroyed nested fragment's menu.",
+                    Toast.LENGTH_SHORT).show();
+            super.onDestroySupportOptionsMenu();
+        }
+
+        @Override
+        public void onPrepareSupportOptionsMenu(Menu menu) {
+            Toast.makeText(getActivity(), "Prepared nested fragment's menu.",
+                    Toast.LENGTH_SHORT).show();
+            super.onPrepareSupportOptionsMenu(menu);
+        }
+
+        @Override
+        public boolean onSupportOptionsItemSelected(MenuItem item) {
+            if (item.getItemId() == R.id.simple_item) {
+                Toast.makeText(getActivity(), "Selected nested fragment's menu item.",
+                        Toast.LENGTH_SHORT).show();
+                return true;
+            }
+            return super.onSupportOptionsItemSelected(item);
+        }
+    }
+}