android-menu-events-change

android-menu-events-change

android-menu-events-change/AndroidManifest.xml

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+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    package="com.hmkcode.android"
+    android:versionCode="1"
+    android:versionName="1.0" >
+
+    <uses-sdk
+        android:minSdkVersion="8"
+        android:targetSdkVersion="17" />
+
+    <application
+        android:allowBackup="true"
+        android:icon="@drawable/ic_launcher"
+        android:label="@string/app_name"
+        android:theme="@style/AppTheme" >
+        <activity
+            android:name="com.hmkcode.android.MainActivity"
+            android:label="@string/app_name" >
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN" />
+
+                <category android:name="android.intent.category.LAUNCHER" />
+            </intent-filter>
+        </activity>
+    </application>
+
+</manifest>

android-menu-events-change/res/layout/activity_main.xml

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+<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    android:paddingBottom="@dimen/activity_vertical_margin"
+    android:paddingLeft="@dimen/activity_horizontal_margin"
+    android:paddingRight="@dimen/activity_horizontal_margin"
+    android:paddingTop="@dimen/activity_vertical_margin"
+    tools:context=".MainActivity" >
+
+    <TextView
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:text="@string/hello_world" />
+
+</RelativeLayout>

android-menu-events-change/res/menu/main.xml

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+<menu xmlns:android="http://schemas.android.com/apk/res/android" >
+   
+    <item
+        android:id="@+id/action_addItem"
+        android:orderInCategory="100"
+        android:showAsAction="always"
+        android:icon="@drawable/ic_content_new"
+        android:title="Add New Item"/>
+    
+</menu>

android-menu-events-change/res/values-sw600dp/dimens.xml

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+<resources>
+
+    <!--
+         Customize dimensions originally defined in res/values/dimens.xml (such as
+         screen margins) for sw600dp devices (e.g. 7" tablets) here.
+    -->
+
+</resources>

android-menu-events-change/res/values-sw720dp-land/dimens.xml

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+<resources>
+
+    <!--
+         Customize dimensions originally defined in res/values/dimens.xml (such as
+         screen margins) for sw720dp devices (e.g. 10" tablets) in landscape here.
+    -->
+    <dimen name="activity_horizontal_margin">128dp</dimen>
+
+</resources>

android-menu-events-change/res/values-v11/styles.xml

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+<resources>
+
+    <!--
+        Base application theme for API 11+. This theme completely replaces
+        AppBaseTheme from res/values/styles.xml on API 11+ devices.
+    -->
+    <style name="AppBaseTheme" parent="android:Theme.Holo.Light">
+        <!-- API 11 theme customizations can go here. -->
+    </style>
+
+</resources>

android-menu-events-change/res/values-v14/styles.xml

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+<resources>
+
+    <!--
+        Base application theme for API 14+. This theme completely replaces
+        AppBaseTheme from BOTH res/values/styles.xml and
+        res/values-v11/styles.xml on API 14+ devices.
+    -->
+    <style name="AppBaseTheme" parent="android:Theme.Holo.Light.DarkActionBar">
+        <!-- API 14 theme customizations can go here. -->
+    </style>
+
+</resources>

android-menu-events-change/res/values/dimens.xml

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+<resources>
+
+    <!-- Default screen margins, per the Android Design guidelines. -->
+    <dimen name="activity_horizontal_margin">16dp</dimen>
+    <dimen name="activity_vertical_margin">16dp</dimen>
+
+</resources>

android-menu-events-change/res/values/strings.xml

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+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+
+    <string name="app_name">App</string>
+    <string name="hello_world">Hello world!</string>
+
+</resources>

android-menu-events-change/res/values/styles.xml

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+<resources>
+
+    <!--
+        Base application theme, dependent on API level. This theme is replaced
+        by AppBaseTheme from res/values-vXX/styles.xml on newer devices.
+    -->
+    <style name="AppBaseTheme" parent="android:Theme.Light">
+        <!--
+            Theme customizations available in newer API levels can go in
+            res/values-vXX/styles.xml, while customizations related to
+            backward-compatibility can go here.
+        -->
+    </style>
+
+    <!-- Application theme. -->
+    <style name="AppTheme" parent="AppBaseTheme">
+        <!-- All customizations that are NOT specific to a particular API-level can go here. -->
+    </style>
+
+</resources>

android-menu-events-change/src/com/hmkcode/android/MainActivity.java

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+package com.hmkcode.android;
+
+import android.os.Bundle;
+import android.annotation.SuppressLint;
+import android.app.Activity;
+import android.view.Menu;
+import android.view.MenuItem;
+import android.widget.Toast;
+
+@SuppressLint("NewApi")
+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;
+	}
+	
+	boolean canAddItem = false;
+	@Override
+	public boolean onOptionsItemSelected(MenuItem item) {
+		Toast toast;
+    	if(item.getItemId() == R.id.action_addItem){
+    		invalidateOptionsMenu();
+    	}
+    	else{
+    		toast = Toast.makeText(this, item.getTitle()+" Clicked!", Toast.LENGTH_SHORT);
+    		toast.show();
+    	}
+    	
+    	return super.onOptionsItemSelected(item);
+	}
+	
+	@Override
+	public boolean onPrepareOptionsMenu(Menu menu) {
+		
+		if(canAddItem){
+			menu.getItem(0).setIcon(R.drawable.ic_content_remove);
+			MenuItem mi = menu.add("New Item");
+			mi.setIcon(R.drawable.ic_location_web_site);
+			mi.setShowAsActionFlags(MenuItem.SHOW_AS_ACTION_IF_ROOM);
+			canAddItem = false;
+		}
+		else{
+			menu.getItem(0).setIcon(R.drawable.ic_content_new);
+			canAddItem = true;
+		}
+		
+		return super.onPrepareOptionsMenu(menu);
+	}
+
+}