All the posts in this category are unfinished. Currently they are just lines of code with no explanation other than the post title. When I get time I will go back through all these posts and thoroughly comment them. ~ Blaine

This is the QR-Code to my first Sudoku app in the Android Market. I built this out of a tutorial in one of my Android Dev books.

Link to the app in Android Market

import android.content.SharedPreferences;

SharedPreferences settings = getSharedPreferences(GAME_PREFERENCES, MODE_PRIVATE);
String lastLaunch = "First launch";
if (settings.contains("lastLaunch") == true)
	lastLaunch = settings.getString("lastLaunch", lastLaunch);
String currentTime = (String) DateFormat.format("yyyy-MM-dd hh:mm:ss", new Date());
SharedPreferences.Editor prefEditor = settings.edit();
prefEditor.putString("lastLaunch", currentTime);
prefEditor.commit();

import java.util.Date;
import android.text.format.DateFormat;

String currentTime = (String) DateFormat.format("yyyy-MM-dd hh:mm:ss", new Date());

<?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:layout_width="fill_parent"
    android:layout_height="wrap_content"
    android:text="@string/hello"
    android:textColor="@color/text_top_color"
	android:textSize="@dimen/text_top_size"
    />
<TextView
	android:layout_width="fill_parent"
	android:layout_height="wrap_content"
	android:text="@string/moretext"
	/>
<ImageView
	android:layout_width="wrap_content"
	android:layout_height="wrap_content"
	android:src="@drawable/computer"
/>
</LinearLayout>

<?xml version="1.0" encoding="utf-8"?>
<resources>
   <array name="difficulty">
      <item>@string/easy_label</item>
      <item>@string/medium_label</item>
      <item>@string/hard_label</item>
   </array>	

   <array name="languages">
      <item>Bulgarian (bg)</item>
      <item>Chinese Simplified (zh-CN)</item>
      <item>Chinese Traditional (zh-TW)</item>
      <item>Catalan (ca)</item>
      <item>Croatian (hr)</item>
      <item>Czech (cs)</item>
      <item>Danish (da)</item>
      <item>Dutch (nl)</item>
      <item>English (en)</item>
      <item>Filipino (tl)</item>
      <item>Finnish (fi)</item>
      <item>French (fr)</item>
      <item>German (de)</item>
      <item>Greek (el)</item>
      <item>Indonesian (id)</item>
      <item>Italian (it)</item>
      <item>Japanese (ja)</item>
      <item>Korean (ko)</item>
      <item>Latvian (lv)</item>
      <item>Lithuanian (lt)</item>
      <item>Norwegian (no)</item>
      <item>Polish (pl)</item>
      <item>Portuguese (pt-PT)</item>
      <item>Romanian (ro)</item>
      <item>Russian (ru)</item>
      <item>Spanish (es)</item>
      <item>Serbian (sr)</item>
      <item>Slovak (sk)</item>
      <item>Slovenian (sl)</item>
      <item>Swedish (sv)</item>
      <item>Ukrainian (uk)</item>
   </array>
</resources>

<?xml version="1.0" encoding="utf-8"?>
<resources>
	<color name="text_top_color">#00ff00</color>
	<color name="test_color">#FF0000</color>
</resources>

<?xml version="1.0" encoding="utf-8"?>
<resources>
	<dimen name="text_top_size">22pt</dimen>
</resources>

<?xml version="1.0" encoding="utf-8"?>
<resources>
	<color name="text_top_color">#00ff00</color>
	<color name="test_color">#FF0000</color>
</resources>

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
      package="com.sample.someapp"
      android:versionCode="1"
      android:versionName="1.0">
    <uses-sdk android:minSdkVersion="7" />

    <uses-permission android:name="android.permission.CAMERA"></uses-permission>

    <application android:label="@string/app_name" android:description="@string/app_desc"
    	android:icon="@drawable/quizicon" android:debuggable="true">
        <activity android:name=".QuizSplashActivity"
                  android:label="@string/app_name">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />
                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
        <activity android:name="QuizMenuActivity"></activity>
        <activity android:name="QuizHelpActivity"></activity>
        <activity android:name="QuizScoresActivity"></activity>
        <activity android:name="QuizSettingsActivity"></activity>
        <activity android:name="QuizGameActivity"></activity>

        <activity android:name="About"
        	android:label="@string/about_title"
        	android:theme="@android:style/Theme.Dialog" />

        <activity android:name="Prefs"
        	android:label="@string/settings_title" />

        <activity android:name="Game"
        	android:label="@string/game_title" />

        <activity android:name="Keypad"
        	android:label="@string/keypad_title" />

    </application>
</manifest>