Adding support for prefenrece search in QuickStep
Bug: 62292864
Change-Id: Ic112626ca9c5942c91ced4ab42e64cbce4657701
diff --git a/src/com/android/launcher3/SettingsActivity.java b/src/com/android/launcher3/SettingsActivity.java
index 6a4e93b..7fa0e52 100644
--- a/src/com/android/launcher3/SettingsActivity.java
+++ b/src/com/android/launcher3/SettingsActivity.java
@@ -31,11 +31,17 @@
import android.preference.Preference;
import android.preference.PreferenceFragment;
import android.provider.Settings;
+import android.text.TextUtils;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.Adapter;
import com.android.launcher3.graphics.IconShapeOverride;
import com.android.launcher3.notification.NotificationListener;
import com.android.launcher3.util.SettingsObserver;
import com.android.launcher3.views.ButtonPreference;
+import com.android.launcher3.views.HighlightableListView;
/**
* Settings activity for Launcher. Currently implements the following setting: Allow rotation
@@ -48,6 +54,10 @@
/** Hidden field Settings.Secure.ENABLED_NOTIFICATION_LISTENERS */
private static final String NOTIFICATION_ENABLED_LISTENERS = "enabled_notification_listeners";
+ private static final String EXTRA_FRAGMENT_ARG_KEY = ":settings:fragment_args_key";
+ private static final int DELAY_HIGHLIGHT_DURATION_MILLIS = 600;
+ private static final String SAVE_HIGHLIGHTED_KEY = "android:preference_highlighted";
+
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
@@ -55,11 +65,15 @@
if (savedInstanceState == null) {
// Display the fragment as the main content.
getFragmentManager().beginTransaction()
- .replace(android.R.id.content, new LauncherSettingsFragment())
+ .replace(android.R.id.content, getNewFragment())
.commit();
}
}
+ protected PreferenceFragment getNewFragment() {
+ return new LauncherSettingsFragment();
+ }
+
/**
* This fragment shows the launcher preferences.
*/
@@ -67,9 +81,22 @@
private IconBadgingObserver mIconBadgingObserver;
+ private String mPreferenceKey;
+ private boolean mPreferenceHighlighted = false;
+
+ @Override
+ public View onCreateView(LayoutInflater inflater, ViewGroup container,
+ Bundle savedInstanceState) {
+ return inflater.inflate(R.layout.launcher_preference, container, false);
+ }
+
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
+ if (savedInstanceState != null) {
+ mPreferenceHighlighted = savedInstanceState.getBoolean(SAVE_HIGHLIGHTED_KEY);
+ }
+
getPreferenceManager().setSharedPreferencesName(LauncherFiles.SHARED_PREFERENCES_KEY);
addPreferencesFromResource(R.xml.launcher_preferences);
@@ -101,6 +128,43 @@
}
@Override
+ public void onSaveInstanceState(Bundle outState) {
+ super.onSaveInstanceState(outState);
+ outState.putBoolean(SAVE_HIGHLIGHTED_KEY, mPreferenceHighlighted);
+ }
+
+ @Override
+ public void onResume() {
+ super.onResume();
+
+ Intent intent = getActivity().getIntent();
+ mPreferenceKey = intent.getStringExtra(EXTRA_FRAGMENT_ARG_KEY);
+ if (isAdded() && !mPreferenceHighlighted && !TextUtils.isEmpty(mPreferenceKey)) {
+ getView().postDelayed(this::highlightPreference, DELAY_HIGHLIGHT_DURATION_MILLIS);
+ }
+ }
+
+ private void highlightPreference() {
+ HighlightableListView list = getView().findViewById(android.R.id.list);
+ Preference pref = findPreference(mPreferenceKey);
+ Adapter adapter = list.getAdapter();
+ if (adapter == null) {
+ return;
+ }
+
+ // Find the position
+ int position = -1;
+ for (int i = adapter.getCount() - 1; i >= 0; i--) {
+ if (pref == adapter.getItem(i)) {
+ position = i;
+ break;
+ }
+ }
+ list.highlightPosition(position);
+ mPreferenceHighlighted = true;
+ }
+
+ @Override
public void onDestroy() {
if (mIconBadgingObserver != null) {
mIconBadgingObserver.unregister();
diff --git a/src/com/android/launcher3/views/HighlightableListView.java b/src/com/android/launcher3/views/HighlightableListView.java
new file mode 100644
index 0000000..7da979f
--- /dev/null
+++ b/src/com/android/launcher3/views/HighlightableListView.java
@@ -0,0 +1,138 @@
+/*
+ * Copyright (C) 2018 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.launcher3.views;
+
+import android.animation.ArgbEvaluator;
+import android.animation.ObjectAnimator;
+import android.animation.ValueAnimator;
+import android.content.Context;
+import android.graphics.Color;
+import android.graphics.drawable.ColorDrawable;
+import android.graphics.drawable.Drawable;
+import android.support.v4.graphics.ColorUtils;
+import android.util.AttributeSet;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.HeaderViewListAdapter;
+import android.widget.ListAdapter;
+import android.widget.ListView;
+
+import com.android.launcher3.R;
+import com.android.launcher3.util.Themes;
+
+import java.util.ArrayList;
+
+/**
+ * Extension of list view with support for element highlighting.
+ */
+public class HighlightableListView extends ListView {
+
+ private int mPosHighlight = -1;
+ private boolean mColorAnimated = false;
+
+ public HighlightableListView(Context context) {
+ super(context);
+ }
+
+ public HighlightableListView(Context context, AttributeSet attrs) {
+ super(context, attrs);
+ }
+
+ public HighlightableListView(Context context, AttributeSet attrs, int defStyleAttr) {
+ super(context, attrs, defStyleAttr);
+ }
+
+ @Override
+ public void setAdapter(ListAdapter adapter) {
+ super.setAdapter(new HighLightAdapter(adapter));
+ }
+
+ public void highlightPosition(int pos) {
+ if (mPosHighlight == pos) {
+ return;
+ }
+
+ mColorAnimated = false;
+ mPosHighlight = pos;
+ setSelection(mPosHighlight);
+
+ int start = getFirstVisiblePosition();
+ int end = getLastVisiblePosition();
+ if (start <= mPosHighlight && mPosHighlight <= end) {
+ highlightView(getChildAt(mPosHighlight - start));
+ }
+ }
+
+ private void highlightView(View view) {
+ if (Boolean.TRUE.equals(view.getTag(R.id.view_highlighted))) {
+ // already highlighted
+ } else {
+ view.setTag(R.id.view_highlighted, true);
+ view.setTag(R.id.view_unhighlight_background, view.getBackground());
+ view.setBackground(getHighlightBackground());
+ view.postDelayed(() -> {
+ mPosHighlight = -1;
+ unhighlightView(view);
+ }, 15000L);
+ }
+ }
+
+ private void unhighlightView(View view) {
+ if (Boolean.TRUE.equals(view.getTag(R.id.view_highlighted))) {
+ Object background = view.getTag(R.id.view_unhighlight_background);
+ if (background instanceof Drawable) {
+ view.setBackground((Drawable) background);
+ }
+ view.setTag(R.id.view_unhighlight_background, null);
+ view.setTag(R.id.view_highlighted, false);
+ }
+ }
+
+ private class HighLightAdapter extends HeaderViewListAdapter {
+ public HighLightAdapter(ListAdapter adapter) {
+ super(new ArrayList<>(), new ArrayList<>(), adapter);
+ }
+
+ @Override
+ public View getView(int position, View convertView, ViewGroup parent) {
+ View view = super.getView(position, convertView, parent);
+
+ if (position == mPosHighlight) {
+ highlightView(view);
+ } else {
+ unhighlightView(view);
+ }
+ return view;
+ }
+ }
+
+ private ColorDrawable getHighlightBackground() {
+ int color = ColorUtils.setAlphaComponent(Themes.getColorAccent(getContext()), 26);
+ if (mColorAnimated) {
+ return new ColorDrawable(color);
+ }
+ mColorAnimated = true;
+ ColorDrawable bg = new ColorDrawable(Color.WHITE);
+ ObjectAnimator anim = ObjectAnimator.ofInt(bg, "color", Color.WHITE, color);
+ anim.setEvaluator(new ArgbEvaluator());
+ anim.setDuration(200L);
+ anim.setRepeatMode(ValueAnimator.REVERSE);
+ anim.setRepeatCount(4);
+ anim.start();
+ return bg;
+ }
+}