Android Preferences Onclick Event

In my preferences.xml I have a preference element like this: I want to assign onClick event, so if user would click on it, I would be ab

Solution 1:

You need to set android:key for the item:

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

Then you can do the following in your code:

PreferencemyPref= (Preference) findPreference("myKey");
myPref.setOnPreferenceClickListener(newOnPreferenceClickListener() {
    publicbooleanonPreferenceClick(Preference preference) {
        // open browser or intent herereturntrue;
    }
});

Solution 2:

to launch a website:

<PreferenceScreenandroid:title="website"><intentandroid:action="android.intent.action.VIEW"android:data="http://www.example.com"
        /></PreferenceScreen>

to launch a specific activity:

<PreferenceScreenandroid:title="something"><intentandroid:action="android.intent.action.MAIN"android:targetPackage="com.example.foo"android:targetClass="com.example.foo.SomeActivity"
        /></PreferenceScreen>

you can also use "android:mimetype" to set the mimetype.

Solution 3:

You need to use onPreferenceTreeClick event.

For example see http://www.javased.com/index.php?source_dir=platform_packages_apps_phone/src/com/android/phone/MobileNetworkSettings.java

@Overridepublic boolean onPreferenceTreeClick(PreferenceScreen preferenceScreen, Preference preference) { 
        /** TODO: Refactor and get rid of the if's using subclasses */if (mGsmUmtsOptions != null && 
                mGsmUmtsOptions.preferenceTreeClick(preference) == true) { 
            returntrue; 
        } elseif (mCdmaOptions != null && 
                   mCdmaOptions.preferenceTreeClick(preference) == true) { 
            if (Boolean.parseBoolean( 
                    SystemProperties.get(TelephonyProperties.PROPERTY_INECM_MODE))) { 

                mClickedPreference = preference; 

                // In ECM mode launch ECM app dialog 
                startActivityForResult( 
                    new Intent(TelephonyIntents.ACTION_SHOW_NOTICE_ECM_BLOCK_OTHERS, null), 
                    REQUEST_CODE_EXIT_ECM); 
            } 
            returntrue; 
        } elseif (preference == mButtonPreferredNetworkMode) { 
            //displays the value taken from the Settings.System 
            int settingsNetworkMode = android.provider.Settings.Secure.getInt(mPhone.getContext(). 
                    getContentResolver(), android.provider.Settings.Secure.PREFERRED_NETWORK_MODE, 
                    preferredNetworkMode); 
            mButtonPreferredNetworkMode.setValue(Integer.toString(settingsNetworkMode)); 
            returntrue; 
        } elseif (preference == mButtonDataRoam) { 
            if (DBG) log("onPreferenceTreeClick: preference == mButtonDataRoam."); 

            //normally called on the toggle click if (mButtonDataRoam.isChecked()) { 
                // First confirm with a warning dialog about charges 
                mOkClicked = false; 
                new AlertDialog.Builder(this).setMessage( 
                        getResources().getString(R.string.roaming_warning)) 
                        .setTitle(android.R.string.dialog_alert_title) 
                        .setIconAttribute(android.R.attr.alertDialogIcon) 
                        .setPositiveButton(android.R.string.yes, this) 
                        .setNegativeButton(android.R.string.no, this) 
                        .show() 
                        .setOnDismissListener(this); 
            } else { 
                mPhone.setDataRoamingEnabled(false); 
            } 
            returntrue; 
        } elseif (preference == mButtonDataEnabled) { 
            if (DBG) log("onPreferenceTreeClick: preference == mButtonDataEnabled."); 
            ConnectivityManager cm = 
                    (ConnectivityManager)getSystemService(Context.CONNECTIVITY_SERVICE); 

            cm.setMobileDataEnabled(mButtonDataEnabled.isChecked()); 
            returntrue; 
        } elseif (preference == mLteDataServicePref) { 
            String tmpl = android.provider.Settings.Secure.getString(getContentResolver(), 
                        android.provider.Settings.Secure.SETUP_PREPAID_DATA_SERVICE_URL); 
            if (!TextUtils.isEmpty(tmpl)) { 
                TelephonyManager tm = (TelephonyManager) getSystemService( 
                        Context.TELEPHONY_SERVICE); 
                String imsi = tm.getSubscriberId(); 
                if (imsi == null) { 
                    imsi = ""; 
                } 
                final String url = TextUtils.isEmpty(tmpl) ? null 
                        : TextUtils.expandTemplate(tmpl, imsi).toString(); 
                Intent intent = new Intent(Intent.ACTION_VIEW, Uri.parse(url)); 
                startActivity(intent); 
            } else { 
                android.util.Log.e(LOG_TAG, "Missing SETUP_PREPAID_DATA_SERVICE_URL"); 
            } 
            returntrue; 
        } else { 
            // if the button is anything but the simple toggle preference, // we'll need to disable all preferences to reject all click // events until the sub-activity's UI comes up. 
            preferenceScreen.setEnabled(false); 
            // Let the intents be launched by the Preference manager returnfalse; 
        } 
    } 

Solution 4:

2018+ UPDATE Today, the findPreference method is depricated. So, to achieve this, just override the onPreferenceTreeClick method in your Preference fragment. For example:

publicclassMySettingsFragmentextendsPreferenceFragment {

    @OverridepublicbooleanonPreferenceTreeClick(PreferenceScreen preferenceScreen,
                                          Preference preference)
    {
        Stringkey= preference.getKey();
        if(key.equals("someKey")){
            // do your workreturntrue;
        }
        returnfalse;
    }
}

Furthermore, if you need to handle a click inside particular preference element (e.g. ListPreference), you should register the setOnPreferenceChangeListener inside the onCreate method of the MySettingsFragment:

@OverridepublicvoidonCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);

    // Load the preferences from an XML resourceaddPreferencesFromResource(R.xml.preferences);

    // register listener
    final Preference prefList = findPreference("key");
    prefList.setOnPreferenceChangeListener(newPreference.OnPreferenceChangeListener() {
        publicbooleanonPreferenceChange(Preference preference, Object value) {
            System.out.println("Selected: " + value);
            returntrue;
        }
    });
}

Solution 5:

A followup on @jason gilbert's answer

I'm on targetSdkVersion 25, and his answer didn't work, I had to wrap the intent tag with a Preference tag. Example:

<PreferenceScreenandroid:title="something"><Preferencetitle="Title"><intentandroid:action="android.intent.action.MAIN"android:targetPackage="com.example.foo"android:targetClass="com.example.foo.SomeActivity"
       /></Preference></PreferenceScreen>