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