### Define Preference Headers in XML

Source: https://github.com/saik0/unifiedpreference/blob/master/README.md

This XML snippet demonstrates how to define preference headers using a custom 'unified' namespace. Each header specifies the fragment to load and the associated preference resource file, enabling a structured settings layout for your Android application.

```xml
<preference-headers xmlns:android="http://schemas.android.com/apk/res/android"
		xmlns:unified="http://schemas.android.com/apk/res-auto" >

		<header
		unified:fragment="your.project.namespace.SampleActivity$SampleFragment"
		unified:title="@string/pref_header_sample"
		unified:preferenceRes="@xml/pref_sample" />

	</preference-headers>
```

--------------------------------

### Subclassing UnifiedPreferenceActivity in Java

Source: https://github.com/saik0/unifiedpreference/blob/master/README.md

This Java code illustrates how to subclass UnifiedPreferenceActivity (or UnifiedSherlockPreferenceActivity for ActionBarSherlock integration). It requires setting the header resource using setHeaderRes() before calling super.onCreate() and defining your preference fragments as static inner classes.

```java
public class SampleActivity extends UnifiedPreferenceActivity {

		@Override public void onCreate(Bundle savedInstanceState) {
			setHeaderRes(R.xml.pref_headers);
			super.onCreate(savedInstanceState);
		}

		public static class SampleFragment extends UnifiedPreferenceFragment {}
	}
```

--------------------------------

### Configure ProGuard for Android WebView JavaScript Interface

Source: https://github.com/saik0/unifiedpreference/blob/master/demo/proguard-project.txt

This ProGuard rule prevents obfuscation or removal of public members within a specified JavaScript interface class used with Android WebView. This is crucial to ensure that JavaScript calls can correctly access the exposed Java methods.

```ProGuard
-keepclassmembers class fqcn.of.javascript.interface.for.webview {
   public *;
}
```

--------------------------------

### Keep JavaScript Interface Members in Android WebView

Source: https://github.com/saik0/unifiedpreference/blob/master/library/proguard-project.txt

This ProGuard rule is used to prevent the obfuscation and removal of public members within a specified JavaScript interface class that is exposed to an Android WebView. This is essential to ensure that JavaScript code can correctly invoke methods on the Java interface without runtime errors.

```ProGuard
-keepclassmembers class fqcn.of.javascript.interface.for.webview {
   public *;
}
```

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