X-Git-Url: https://git.ktnx.net/?p=mobile-ledger.git;a=blobdiff_plain;f=app%2Fsrc%2Fmain%2Fjava%2Fnet%2Fktnx%2Fmobileledger%2FSettingsActivity.java;fp=app%2Fsrc%2Fmain%2Fjava%2Fnet%2Fktnx%2Fmobileledger%2FSettingsActivity.java;h=a3ef05082db45213a4923e58d4aa312bf3b98201;hp=0000000000000000000000000000000000000000;hb=74b1f5d262a15f9a5a394aca1c4d2438dc54c14a;hpb=9dca57073b68b3a79efbe9a11f3c84c13b16f5be diff --git a/app/src/main/java/net/ktnx/mobileledger/SettingsActivity.java b/app/src/main/java/net/ktnx/mobileledger/SettingsActivity.java new file mode 100644 index 00000000..a3ef0508 --- /dev/null +++ b/app/src/main/java/net/ktnx/mobileledger/SettingsActivity.java @@ -0,0 +1,267 @@ +package net.ktnx.mobileledger; + +import android.annotation.TargetApi; +import android.content.Context; +import android.content.Intent; +import android.content.res.Configuration; +import android.media.Ringtone; +import android.media.RingtoneManager; +import android.net.Uri; +import android.os.Build; +import android.os.Bundle; +import android.preference.ListPreference; +import android.preference.Preference; +import android.preference.PreferenceActivity; +import android.preference.PreferenceFragment; +import android.preference.PreferenceManager; +import android.preference.RingtonePreference; +import android.support.v4.app.NavUtils; +import android.support.v7.app.ActionBar; +import android.text.TextUtils; +import android.view.MenuItem; + +import java.util.List; + +/** + * A {@link PreferenceActivity} that presents a set of application settings. On + * handset devices, settings are presented as a single list. On tablets, + * settings are split by category, with category headers shown to the left of + * the list of settings. + *

+ * See + * Android Design: Settings for design guidelines and the Settings + * API Guide for more information on developing a Settings UI. + */ +public class SettingsActivity extends AppCompatPreferenceActivity { + + /** + * A preference value change listener that updates the preference's summary + * to reflect its new value. + */ + private static Preference.OnPreferenceChangeListener sBindPreferenceSummaryToValueListener = new Preference.OnPreferenceChangeListener() { + @Override + public boolean onPreferenceChange(Preference preference, Object value) { + String stringValue = value.toString(); + + if (preference instanceof ListPreference) { + // For list preferences, look up the correct display value in + // the preference's 'entries' list. + ListPreference listPreference = (ListPreference) preference; + int index = listPreference.findIndexOfValue(stringValue); + + // Set the summary to reflect the new value. + preference.setSummary( + index >= 0 + ? listPreference.getEntries()[index] + : null); + + } else if (preference instanceof RingtonePreference) { + // For ringtone preferences, look up the correct display value + // using RingtoneManager. + if (TextUtils.isEmpty(stringValue)) { + // Empty values correspond to 'silent' (no ringtone). + preference.setSummary(R.string.pref_ringtone_silent); + + } else { + Ringtone ringtone = RingtoneManager.getRingtone( + preference.getContext(), Uri.parse(stringValue)); + + if (ringtone == null) { + // Clear the summary if there was a lookup error. + preference.setSummary(null); + } else { + // Set the summary to reflect the new ringtone display + // name. + String name = ringtone.getTitle(preference.getContext()); + preference.setSummary(name); + } + } + } else { + // For all other preferences, set the summary to the value's + // simple string representation. + preference.setSummary(stringValue); + } + return true; + } + }; + + /** + * Helper method to determine if the device has an extra-large screen. For + * example, 10" tablets are extra-large. + */ + private static boolean isXLargeTablet(Context context) { + return (context.getResources().getConfiguration().screenLayout + & Configuration.SCREENLAYOUT_SIZE_MASK) >= Configuration.SCREENLAYOUT_SIZE_XLARGE; + } + + /** + * Binds a preference's summary to its value. More specifically, when the + * preference's value is changed, its summary (line of text below the + * preference title) is updated to reflect the value. The summary is also + * immediately updated upon calling this method. The exact display format is + * dependent on the type of preference. + * + * @see #sBindPreferenceSummaryToValueListener + */ + private static void bindPreferenceSummaryToValue(Preference preference) { + // Set the listener to watch for value changes. + preference.setOnPreferenceChangeListener(sBindPreferenceSummaryToValueListener); + + // Trigger the listener immediately with the preference's + // current value. + sBindPreferenceSummaryToValueListener.onPreferenceChange(preference, + PreferenceManager + .getDefaultSharedPreferences(preference.getContext()) + .getString(preference.getKey(), "")); + } + + @Override + protected void onCreate(Bundle savedInstanceState) { + super.onCreate(savedInstanceState); + setupActionBar(); + } + + /** + * Set up the {@link android.app.ActionBar}, if the API is available. + */ + private void setupActionBar() { + ActionBar actionBar = getSupportActionBar(); + if (actionBar != null) { + // Show the Up button in the action bar. + actionBar.setDisplayHomeAsUpEnabled(true); + } + } + + @Override + public boolean onMenuItemSelected(int featureId, MenuItem item) { + int id = item.getItemId(); + if (id == android.R.id.home) { + if (!super.onMenuItemSelected(featureId, item)) { + NavUtils.navigateUpFromSameTask(this); + } + return true; + } + return super.onMenuItemSelected(featureId, item); + } + + /** + * {@inheritDoc} + */ + @Override + public boolean onIsMultiPane() { + return isXLargeTablet(this); + } + + /** + * {@inheritDoc} + */ + @Override + @TargetApi(Build.VERSION_CODES.HONEYCOMB) + public void onBuildHeaders(List

target) { + loadHeadersFromResource(R.xml.pref_headers, target); + } + + /** + * This method stops fragment injection in malicious applications. + * Make sure to deny any unknown fragments here. + */ + protected boolean isValidFragment(String fragmentName) { + return PreferenceFragment.class.getName().equals(fragmentName) + || BackendPreferenceFragment.class.getName().equals(fragmentName) + || DataSyncPreferenceFragment.class.getName().equals(fragmentName) + || NotificationPreferenceFragment.class.getName().equals(fragmentName); + } + + /** + * This fragment shows general preferences only. It is used when the + * activity is showing a two-pane settings UI. + */ + @TargetApi(Build.VERSION_CODES.HONEYCOMB) + public static class BackendPreferenceFragment extends PreferenceFragment { + @Override + public void onCreate(Bundle savedInstanceState) { + super.onCreate(savedInstanceState); + addPreferencesFromResource(R.xml.pref_backend); + setHasOptionsMenu(true); + + // 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. + bindPreferenceSummaryToValue(findPreference("backend_url")); + bindPreferenceSummaryToValue(findPreference("backend_auth_user")); + + } + + @Override + public boolean onOptionsItemSelected(MenuItem item) { + int id = item.getItemId(); + if (id == android.R.id.home) { + startActivity(new Intent(getActivity(), SettingsActivity.class)); + return true; + } + return super.onOptionsItemSelected(item); + } + } + + /** + * This fragment shows notification preferences only. It is used when the + * activity is showing a two-pane settings UI. + */ + @TargetApi(Build.VERSION_CODES.HONEYCOMB) + public static class NotificationPreferenceFragment extends PreferenceFragment { + @Override + public void onCreate(Bundle savedInstanceState) { + super.onCreate(savedInstanceState); + addPreferencesFromResource(R.xml.pref_notification); + setHasOptionsMenu(true); + + // 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. + bindPreferenceSummaryToValue(findPreference("notifications_new_message_ringtone")); + } + + @Override + public boolean onOptionsItemSelected(MenuItem item) { + int id = item.getItemId(); + if (id == android.R.id.home) { + startActivity(new Intent(getActivity(), SettingsActivity.class)); + return true; + } + return super.onOptionsItemSelected(item); + } + } + + /** + * 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(Bundle savedInstanceState) { + super.onCreate(savedInstanceState); + addPreferencesFromResource(R.xml.pref_data_sync); + setHasOptionsMenu(true); + + // 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. + bindPreferenceSummaryToValue(findPreference("sync_frequency")); + } + + @Override + public boolean onOptionsItemSelected(MenuItem item) { + int id = item.getItemId(); + if (id == android.R.id.home) { + startActivity(new Intent(getActivity(), SettingsActivity.class)); + return true; + } + return super.onOptionsItemSelected(item); + } + } +}