integration lib and demo

org_apg_integration_demo/res/layout/intent_demo.xml

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+<?xml version="1.0" encoding="utf-8"?>
+<ScrollView xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="match_parent"
+    android:layout_height="wrap_content" >
+
+    <LinearLayout
+        android:layout_width="match_parent"
+        android:layout_height="match_parent"
+        android:orientation="vertical" >
+
+        <Button
+            android:id="@+id/intent_demo_select_secret_key"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:onClick="intentDemoSelectSecretKeyOnClick"
+            android:text="Select secret key" />
+
+        <Button
+            android:id="@+id/intent_demo_select_encryption_key"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:onClick="intentDemoSelectEncryptionKeysOnClick"
+            android:text="Select encryption key(s)" />
+
+        <EditText
+            android:id="@+id/intent_demo_message"
+            android:layout_width="match_parent"
+            android:layout_height="150dip"
+            android:text="message"
+            android:textAppearance="@android:style/TextAppearance.Small" />
+
+        <EditText
+            android:id="@+id/intent_demo_ciphertext"
+            android:layout_width="match_parent"
+            android:layout_height="150dip"
+            android:text="ciphertext"
+            android:textAppearance="@android:style/TextAppearance.Small" />
+
+        <Button
+            android:id="@+id/intent_demo_encrypt"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:onClick="intentDemoEncryptOnClick"
+            android:text="Encrypt" />
+
+        <Button
+            android:id="@+id/intent_demo_decrypt"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:onClick="intentDemoDecryptOnClick"
+            android:text="Decrypt" />
+
+        <TextView
+            android:layout_width="match_parent"
+            android:layout_height="match_parent"
+            android:text="APG Data:" />
+
+        <TextView
+            android:id="@+id/intent_demo_data"
+            android:layout_width="match_parent"
+            android:layout_height="match_parent"
+            android:minLines="10" />
+    </LinearLayout>
+
+</ScrollView>

org_apg_integration_demo/res/xml/base_preference.xml

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+<?xml version="1.0" encoding="utf-8"?>
+<PreferenceScreen xmlns:android="http://schemas.android.com/apk/res/android" >
+
+    <PreferenceCategory android:title="Intent" >
+        <Preference
+            android:key="intent_demo"
+            android:title="Intent Demo" />
+    </PreferenceCategory>
+    <PreferenceCategory android:title="AIDL" >
+        <Preference
+            android:key="aidl_demo"
+            android:title="AIDL Demo" />
+    </PreferenceCategory>
+
+</PreferenceScreen>