Non Deprecated findPreference() Method? - Android

Question

I want to detect when a Preference contained in a ListView gets clicked, so that I can launch an intent to manage that selection.

I would have done like this in my layout XML file:

<Preference android:title="About" android:key="myKey"></Preference> 

And the following in my java code:

Preference myPref = (Preference) findPreference("myKey"); myPref.setOnPreferenceClickListener(new OnPreferenceClickListener() {              public boolean onPreferenceClick(Preference preference) {                  //open browser or intent here              }          }); 

But the method public Preference findPreference (CharSequence key) is deprecated.

1. Is there a non deprecated equivalent?
2. If not, what if I use it anyway?
3. How can Fragments help me do my task in a better way?Chek here: Preferences without deprecated methods.

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Here you can check the XML layout structure that my activity has, and a snapshot of the application:

XML:

<?xml version="1.0" encoding="utf-8"?> <PreferenceScreen xmlns:android="http://schemas.android.com/apk/res/android" >      <Preference          android:key="about"          android:title="@string/titleAbout"          android:summary="@string/summaryAbout"      />      <Preference          android:key="labelTaxonomy"          android:title="@string/titleLabelTaxonomy"          android:summary="@string/summaryLabelTaxonomy"      />  </PreferenceScreen> 

SNAPSHOT:

After clicking on the About (or Access Label Taxonomy) Preference, I'd like to open an intent of some kind (could also be a video or anything else...the names are misleading).

Answer 1

If you use fragments, you can use the method "findPreference()" on the basis of a preferences fragment.

public class CustomActivity extends PreferenceActivity {   @Override   public void onCreate(Bundle savedInstanceState) {       super.onCreate(savedInstanceState);       setContentView(R.layout.activity_custom);        CustomFragment customFragment = (CustomFragment) getFragmentManager().findFragmentById(R.id.custom_fragment);       EditTextPreference textPreference = (EditTextPreference) customFragment.findPreference("preference_key");        textPreference.setOnPreferenceClickListener(new OnPreferenceClickListener() {          public boolean onPreferenceClick(Preference preference) {              //open browser or intent here          }      });   } } 

Answer 2

Is there a non deprecated equivalent?

If you are using PreferenceFragment on API Level 11+ devices, you would call findPreference() on it. Otherwise, call findPreference() on your PreferenceActivity, as you have no choice.

If not, what if I use it anyway?

It will work.

How can Fragments help me do my task in a better way?

API Level 11+ introduced PreferenceFragment as another way of constructing the contents of a PreferenceActivity. You are welcome to use them, but if you are still supporting older devices, you cannot use PreferenceFragment for those devices.

That being said:

I want to detect when a Preference contained in a ListView gets clicked, so that I can launch an intent to manage that selection.

You do not need Java code for this. Use:

    <PreferenceScreen             android:title="@string/title_intent_preference"             android:summary="@string/summary_intent_preference">          <intent android:action="android.intent.action.VIEW"                 android:data="http://www.android.com" />      </PreferenceScreen> 

(as seen in the JavaDocs for PreferenceActivity)

This will create an entry in the preference UI that, when clicked, will start an activity with the specified Intent.