How to add a Header and Preference Object to PreferenceActivity not using an XML file but Java?

Question

I have PreferenceFragment and a PreferenceActivity from which I add headers from a XML file on this way: PreferenceActivity ``` @Override public void onBuildHeaders(List

target) { if(DEBUG) Log.i("PreferenceActivity", "onBuildHeaders() -> LogicAnalizerPrefs"); if(android.os.Build.VERSION.SDK_INT >= 12) { loadHeadersFromResource(R.xml.preference_header_logicanalizer, target); } } ``` PreferenceFragment: ``` @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); if(DEBUG) Log.i("PreferenceFragment", "onCreate() -> LogicAnalizerPrefsFragment"); int res = getActivity().getResources().getIdentifier(getArguments().getString("logicprefsheaders"), "xml", getActivity().getPackageName()); addPreferencesFromResource(res); } ``` And the XML file where I have the headers is: R.xml.preference_header_logicanalizer: ```

Accepted Answer

Adding headers dynamically will not be easy. As android documentation states:

Blockquote Typical implementations will use loadHeadersFromResource(int, List) to fill in the list from a resource.

If you still want to go with a dynamic solution, you might want to take a look at the source code of loadHeadersFromResource (for example, here http://grepcode.com/file/repository.grepcode.com/java/ext/com.google.android/android/4.0.1_r1/android/preference/PreferenceActivity.java#PreferenceActivity.loadHeadersFromResource(int%2Cjava.util.List) )

To sum up,

you need to create a PreferenceActivity.Header object,

prepare it for usage by setting its various properties that can be found in documentation: http://developer.android.com/reference/android/preference/PreferenceActivity.Header.html,

and finally add that created header to the list: `target.add(header);` (target is the argument that is passed to onBuildHeaders)

How to add a Header and Preference Object to PreferenceActivity not using an XML file but Java?

Solution

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