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author | Alan Viverette <alanv@google.com> | 2013-07-18 17:49:33 -0700 |
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committer | Alan Viverette <alanv@google.com> | 2013-07-18 17:49:33 -0700 |
commit | 341ff66e0374a46f89c51bca2ef55da368b7e40f (patch) | |
tree | 9e7cbc5d091b82deb22c0be8249ccc3902682d4d /src/com/android/settings/accessibility/ToggleFeaturePreferenceFragment.java | |
parent | 8e3405d85a334565e262f41c9a23740c043f83a4 (diff) | |
download | packages_apps_Settings-341ff66e0374a46f89c51bca2ef55da368b7e40f.zip packages_apps_Settings-341ff66e0374a46f89c51bca2ef55da368b7e40f.tar.gz packages_apps_Settings-341ff66e0374a46f89c51bca2ef55da368b7e40f.tar.bz2 |
Move accessibility settings to their own package
Change-Id: I5822bf4a81f5ade4ee0649ed30c2daa40d7e8fe2
Diffstat (limited to 'src/com/android/settings/accessibility/ToggleFeaturePreferenceFragment.java')
-rw-r--r-- | src/com/android/settings/accessibility/ToggleFeaturePreferenceFragment.java | 155 |
1 files changed, 155 insertions, 0 deletions
diff --git a/src/com/android/settings/accessibility/ToggleFeaturePreferenceFragment.java b/src/com/android/settings/accessibility/ToggleFeaturePreferenceFragment.java new file mode 100644 index 0000000..171b1ac --- /dev/null +++ b/src/com/android/settings/accessibility/ToggleFeaturePreferenceFragment.java @@ -0,0 +1,155 @@ +/* + * Copyright (C) 2013 The Android Open Source Project + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +package com.android.settings.accessibility; + +import android.app.ActionBar; +import android.app.Activity; +import android.content.Intent; +import android.graphics.Color; +import android.graphics.drawable.ColorDrawable; +import android.os.Bundle; +import android.preference.Preference; +import android.preference.PreferenceActivity; +import android.preference.PreferenceScreen; +import android.view.Gravity; +import android.view.Menu; +import android.view.MenuInflater; +import android.view.MenuItem; +import android.view.View; +import android.view.accessibility.AccessibilityEvent; +import android.view.accessibility.AccessibilityManager; +import android.widget.TextView; + +import com.android.settings.R; +import com.android.settings.SettingsPreferenceFragment; + +public abstract class ToggleFeaturePreferenceFragment + extends SettingsPreferenceFragment { + + protected ToggleSwitch mToggleSwitch; + + protected String mPreferenceKey; + protected Preference mSummaryPreference; + + protected CharSequence mSettingsTitle; + protected Intent mSettingsIntent; + + // TODO: Showing sub-sub fragment does not handle the activity title + // so we do it but this is wrong. Do a real fix when there is time. + private CharSequence mOldActivityTitle; + + @Override + public void onCreate(Bundle savedInstanceState) { + super.onCreate(savedInstanceState); + PreferenceScreen preferenceScreen = getPreferenceManager().createPreferenceScreen( + getActivity()); + setPreferenceScreen(preferenceScreen); + mSummaryPreference = new Preference(getActivity()) { + @Override + protected void onBindView(View view) { + super.onBindView(view); + TextView summaryView = (TextView) view.findViewById(R.id.summary); + summaryView.setText(getSummary()); + sendAccessibilityEvent(summaryView); + } + + private void sendAccessibilityEvent(View view) { + // Since the view is still not attached we create, populate, + // and send the event directly since we do not know when it + // will be attached and posting commands is not as clean. + AccessibilityManager accessibilityManager = + AccessibilityManager.getInstance(getActivity()); + if (accessibilityManager.isEnabled()) { + AccessibilityEvent event = AccessibilityEvent.obtain(); + event.setEventType(AccessibilityEvent.TYPE_VIEW_FOCUSED); + view.onInitializeAccessibilityEvent(event); + view.dispatchPopulateAccessibilityEvent(event); + accessibilityManager.sendAccessibilityEvent(event); + } + } + }; + mSummaryPreference.setPersistent(false); + mSummaryPreference.setLayoutResource(R.layout.text_description_preference); + preferenceScreen.addPreference(mSummaryPreference); + } + + @Override + public void onViewCreated(View view, Bundle savedInstanceState) { + super.onViewCreated(view, savedInstanceState); + onInstallActionBarToggleSwitch(); + onProcessArguments(getArguments()); + // Set a transparent drawable to prevent use of the default one. + getListView().setSelector(new ColorDrawable(Color.TRANSPARENT)); + getListView().setDivider(null); + } + + @Override + public void onDestroyView() { + getActivity().getActionBar().setCustomView(null); + if (mOldActivityTitle != null) { + getActivity().getActionBar().setTitle(mOldActivityTitle); + } + mToggleSwitch.setOnBeforeCheckedChangeListener(null); + super.onDestroyView(); + } + + protected abstract void onPreferenceToggled(String preferenceKey, boolean enabled); + + @Override + public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) { + super.onCreateOptionsMenu(menu, inflater); + MenuItem menuItem = menu.add(mSettingsTitle); + menuItem.setShowAsAction(MenuItem.SHOW_AS_ACTION_IF_ROOM); + menuItem.setIntent(mSettingsIntent); + } + + protected void onInstallActionBarToggleSwitch() { + mToggleSwitch = createAndAddActionBarToggleSwitch(getActivity()); + } + + private ToggleSwitch createAndAddActionBarToggleSwitch(Activity activity) { + ToggleSwitch toggleSwitch = new ToggleSwitch(activity); + final int padding = activity.getResources().getDimensionPixelSize( + R.dimen.action_bar_switch_padding); + toggleSwitch.setPaddingRelative(0, 0, padding, 0); + activity.getActionBar().setDisplayOptions(ActionBar.DISPLAY_SHOW_CUSTOM, + ActionBar.DISPLAY_SHOW_CUSTOM); + activity.getActionBar().setCustomView(toggleSwitch, + new ActionBar.LayoutParams(ActionBar.LayoutParams.WRAP_CONTENT, + ActionBar.LayoutParams.WRAP_CONTENT, + Gravity.CENTER_VERTICAL | Gravity.END)); + return toggleSwitch; + } + + protected void onProcessArguments(Bundle arguments) { + // Key. + mPreferenceKey = arguments.getString(AccessibilitySettings.EXTRA_PREFERENCE_KEY); + // Enabled. + final boolean enabled = arguments.getBoolean(AccessibilitySettings.EXTRA_CHECKED); + mToggleSwitch.setCheckedInternal(enabled); + // Title. + PreferenceActivity activity = (PreferenceActivity) getActivity(); + if (!activity.onIsMultiPane() || activity.onIsHidingHeaders()) { + mOldActivityTitle = getActivity().getTitle(); + String title = arguments.getString(AccessibilitySettings.EXTRA_TITLE); + getActivity().getActionBar().setTitle(title); + } + // Summary. + CharSequence summary = arguments.getCharSequence(AccessibilitySettings.EXTRA_SUMMARY); + mSummaryPreference.setSummary(summary); + } +} |