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Code Issues Releases Wiki Activity

Add many methods to make preference activity simpler

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This commit is contained in:
Loic Blot 2015-03-29 21:39:34 +02:00
parent d9f5dd4f5a
commit f4497ce993
1 changed files with 90 additions and 11 deletions
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101
src/fr/nrz/androidlib/activities/NrzSettingsActivity.java
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@ -28,26 +28,31 @@ package fr.nrz.androidlib.activities;
* either expressed or implied, of the FreeBSD Project.
*/
import java.util.Vector;
import android.annotation.TargetApi;
import android.content.Context;
import android.content.res.Configuration;
import android.os.Build;
import android.os.Bundle;
import android.preference.CheckBoxPreference;
import android.preference.ListPreference;
import android.preference.Preference;
import android.preference.PreferenceActivity;
import android.preference.PreferenceFragment;
import android.preference.PreferenceManager;
public abstract class NrzSettingsActivity extends PreferenceActivity {
public class NrzSettingsActivity extends PreferenceActivity {
private static final boolean ALWAYS_SIMPLE_PREFS = false;
protected static Context _context;
protected static int _prefsRessourceFile;
protected static Preference.OnPreferenceChangeListener sBindPreferenceListener;
protected static Vector<BindObjectPref> _boolPrefs = new Vector<BindObjectPref>();
protected static Vector<BindObjectPref> _stringPrefs = new Vector<BindObjectPref>();
@Override
protected void onPostCreate(final Bundle savedInstanceState) {
super.onPostCreate(savedInstanceState);
_context = getBaseContext();
setupSimplePreferencesScreen();
}
@ -68,8 +73,6 @@ public abstract class NrzSettingsActivity extends PreferenceActivity {
bindPreferences();
}
protected abstract void bindPreferences();
/** {@inheritDoc} */
@Override
public boolean onIsMultiPane() {
@ -109,11 +112,11 @@ public abstract class NrzSettingsActivity extends PreferenceActivity {
public static void bindPreferenceBooleanToValue(final Preference preference, final Boolean defValue) {
// Set the listener to watch for value changes.
preference
.setOnPreferenceChangeListener(sBindPreferenceListener);
.setOnPreferenceChangeListener(_bindPreferenceListener);
// Trigger the listener immediately with the preference's
// current value.
sBindPreferenceListener.onPreferenceChange(
_bindPreferenceListener.onPreferenceChange(
preference,
PreferenceManager.getDefaultSharedPreferences(
preference.getContext()).getBoolean(
@ -123,20 +126,96 @@ public abstract class NrzSettingsActivity extends PreferenceActivity {
);
}
public static void bindPreferenceStringToValue(final Preference preference) {
public static void bindPreferenceStringToValue(final Preference preference, final String defValue) {
// Set the listener to watch for value changes.
preference
.setOnPreferenceChangeListener(sBindPreferenceListener);
.setOnPreferenceChangeListener(_bindPreferenceListener);
// Trigger the listener immediately with the preference's
// current value.
sBindPreferenceListener.onPreferenceChange(
_bindPreferenceListener.onPreferenceChange(
preference,
PreferenceManager.getDefaultSharedPreferences(
preference.getContext()).getString(
preference.getKey(),
""
defValue
)
);
}
/**
* This fragment shows data and sync preferences only. It is used when the
* activity is showing a two-pane settings UI.
*/
@TargetApi(Build.VERSION_CODES.HONEYCOMB)
public static class DataSyncPreferenceFragment extends PreferenceFragment {
@Override
public void onCreate(final Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
addPreferencesFromResource(_prefsRessourceFile);
// Bind the summaries of EditText/List/Dialog/Ringtone preferences
// to their values. When their values change, their summaries are
// updated to reflect the new value, per the Android Design
// guidelines.
for (int i=0; i < _stringPrefs.size(); i++) {
bindPreferenceStringToValue(findPreference(_stringPrefs.get(i).name),
(String) _stringPrefs.get(i).value);
}
for (int i=0; i < _boolPrefs.size(); i++) {
bindPreferenceBooleanToValue(findPreference(_boolPrefs.get(i).name),
(Boolean) _boolPrefs.get(i).value);
}
}
}
private void bindPreferences() {
// Bind the summaries of EditText/List/Dialog/Ringtone preferences to
// their values. When their values change, their summaries are updated
// to reflect the new value, per the Android Design guidelines.
for (int i=0; i < _stringPrefs.size(); i++) {
bindPreferenceStringToValue(findPreference(_stringPrefs.get(i).name),
(String) _stringPrefs.get(i).value);
}
for (int i=0; i < _boolPrefs.size(); i++) {
bindPreferenceBooleanToValue(findPreference(_boolPrefs.get(i).name),
(Boolean) _boolPrefs.get(i).value);
}
}
// The preference object, it's only a key value pair
protected class BindObjectPref {
public String name;
public Object value;
public BindObjectPref(final String prefName, final Object prefVal) {
name = prefName;
value = prefVal;
}
}
/**
* A preference value change listener that updates the preference's summary
* to reflect its new value.
*/
private static Preference.OnPreferenceChangeListener _bindPreferenceListener = new Preference.OnPreferenceChangeListener() {
@Override
public boolean onPreferenceChange(final Preference preference, final Object value) {
if (preference instanceof ListPreference) {
handleListPreference(preference.getKey(), value.toString(), (ListPreference) preference);
} else if (preference instanceof CheckBoxPreference) {
handleCheckboxPreference(preference.getKey(), (Boolean)value);
} else {
// For all other preferences, set the summary to the value's
// simple string representation.
//preference.setSummary(boolValue);
}
return true;
}
};
protected static void handleCheckboxPreference(final String key, final Boolean value) {}
protected static void handleListPreference(final String key, final String value,
final ListPreference preference) {}
}