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Refactor SettingsContentObserver and add it to follow typing feature.

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Refactor SettingsContentObserver and rename it to
AccessibilitySettingsContentObserver. Besides, we register it to observe
follow typing feature preference value.

The reasons behind refactor:
1. We change callback signature due to the consistency for register it
by preference key, not by Uri.
2. We refactor the default preference key to a seperate method. Since
the default value is related to accessibility, we rename it with
accessibility prefix.
3. We can register different callback for difference collections of
preference keys.

Default preference keys: They existed in the previous constructor.
1. Settings.Secure.ACCESSIBILITY_ENABLED
2. Settings.Secure.ENABLED_ACCESSIBILITY_SERVICES

Bug: 194668976
Test: make RunSettingsRoboTests ROBOTEST_FILTER=
           AccessibilitySettingsTest
           AccessibilitySettingsContentObserverTest
           AccessibilityShortcutPreferenceFragmentTest
           MagnificationFollowTypingPreferenceControllerTest
           ToggleFeaturePreferenceFragmentTest
           ToggleScreenMagnificationPreferenceFragmentTest
Change-Id: Iafd27e044ebe2536ae7ae55c1c80af54f7f0f822
This commit is contained in:
Daniel Hsieh
2022-01-17 05:03:41 +00:00
parent 0c229fdb4d
commit 55bc49860b
16 changed files with 489 additions and 168 deletions
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27
src/com/android/settings/accessibility/ToggleDaltonizerPreferenceFragment.java
View File

@@ -24,9 +24,7 @@ import static com.android.settings.accessibility.AccessibilityUtil.State.ON;
import android.app.settings.SettingsEnums;
import android.content.Context;
import android.content.res.Resources;
import android.net.Uri;
import android.os.Bundle;
import android.os.Handler;
import android.provider.Settings;
import android.view.LayoutInflater;
import android.view.View;
@@ -53,8 +51,6 @@ public final class ToggleDaltonizerPreferenceFragment extends ToggleFeaturePrefe
private static final String KEY_PREVIEW = "daltonizer_preview";
private static final String KEY_CATEGORY_MODE = "daltonizer_mode_category";
private static final List<AbstractPreferenceController> sControllers = new ArrayList<>();
private final Handler mHandler = new Handler();
private SettingsContentObserver mSettingsContentObserver;
private static List<AbstractPreferenceController> buildPreferenceControllers(Context context,
Lifecycle lifecycle) {
@@ -84,20 +80,22 @@ public final class ToggleDaltonizerPreferenceFragment extends ToggleFeaturePrefe
mComponentName = DALTONIZER_COMPONENT_NAME;
mPackageName = getText(R.string.accessibility_display_daltonizer_preference_title);
mHtmlDescription = getText(R.string.accessibility_display_daltonizer_preference_subtitle);
final List<String> enableServiceFeatureKeys = new ArrayList<>(/* initialCapacity= */ 1);
enableServiceFeatureKeys.add(ENABLED);
mSettingsContentObserver = new SettingsContentObserver(mHandler, enableServiceFeatureKeys) {
@Override
public void onChange(boolean selfChange, Uri uri) {
updateSwitchBarToggleSwitch();
}
};
final View view = super.onCreateView(inflater, container, savedInstanceState);
updateFooterPreference();
return view;
}
@Override
protected void registerKeysToObserverCallback(
AccessibilitySettingsContentObserver contentObserver) {
super.registerKeysToObserverCallback(contentObserver);
final List<String> enableServiceFeatureKeys = new ArrayList<>(/* initialCapacity= */ 1);
enableServiceFeatureKeys.add(ENABLED);
contentObserver.registerKeysToObserverCallback(enableServiceFeatureKeys,
key -> updateSwitchBarToggleSwitch());
}
private void updateFooterPreference() {
final String title = getPrefContext()
.getString(R.string.accessibility_daltonizer_about_title);
@@ -123,8 +121,6 @@ public final class ToggleDaltonizerPreferenceFragment extends ToggleFeaturePrefe
public void onResume() {
super.onResume();
updateSwitchBarToggleSwitch();
mSettingsContentObserver.register(getContentResolver());
for (AbstractPreferenceController controller :
buildPreferenceControllers(getPrefContext(), getSettingsLifecycle())) {
((DaltonizerRadioButtonPreferenceController) controller).setOnChangeListener(this);
@@ -135,7 +131,6 @@ public final class ToggleDaltonizerPreferenceFragment extends ToggleFeaturePrefe
@Override
public void onPause() {
mSettingsContentObserver.unregister(getContentResolver());
for (AbstractPreferenceController controller :
buildPreferenceControllers(getPrefContext(), getSettingsLifecycle())) {
((DaltonizerRadioButtonPreferenceController) controller).setOnChangeListener(null);