| /* |
| * 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.systemui.qs; |
| |
| import android.animation.Animator; |
| import android.animation.AnimatorListenerAdapter; |
| import android.content.Context; |
| import android.os.Handler; |
| import android.util.AttributeSet; |
| import android.view.View; |
| import android.widget.LinearLayout; |
| |
| import com.android.systemui.Prefs; |
| |
| import java.util.concurrent.TimeUnit; |
| |
| |
| /** |
| * Tooltip/header view for the Quick Settings panel. |
| */ |
| public class QSTooltipView extends LinearLayout { |
| |
| private static final int FADE_ANIMATION_DURATION_MS = 300; |
| private static final long AUTO_FADE_OUT_DELAY_MS = TimeUnit.SECONDS.toMillis(6); |
| private static final int TOOLTIP_NOT_YET_SHOWN_COUNT = 0; |
| public static final int MAX_TOOLTIP_SHOWN_COUNT = 3; |
| |
| private final Handler mHandler = new Handler(); |
| private final Runnable mAutoFadeOutRunnable = () -> fadeOut(); |
| |
| private int mShownCount; |
| |
| public QSTooltipView(Context context) { |
| this(context, null); |
| } |
| |
| public QSTooltipView(Context context, AttributeSet attrs) { |
| super(context, attrs); |
| mShownCount = getStoredShownCount(); |
| } |
| |
| /** Returns the latest stored tooltip shown count from SharedPreferences. */ |
| private int getStoredShownCount() { |
| return Prefs.getInt( |
| mContext, |
| Prefs.Key.QS_LONG_PRESS_TOOLTIP_SHOWN_COUNT, |
| TOOLTIP_NOT_YET_SHOWN_COUNT); |
| } |
| |
| /** |
| * Fades in the header view if we can show the tooltip - short circuits any running animation. |
| */ |
| public void fadeIn() { |
| if (mShownCount < MAX_TOOLTIP_SHOWN_COUNT) { |
| animate().cancel(); |
| setVisibility(View.VISIBLE); |
| animate() |
| .alpha(1f) |
| .setDuration(FADE_ANIMATION_DURATION_MS) |
| .setListener(new AnimatorListenerAdapter() { |
| @Override |
| public void onAnimationEnd(Animator animation) { |
| mHandler.postDelayed(mAutoFadeOutRunnable, AUTO_FADE_OUT_DELAY_MS); |
| } |
| }) |
| .start(); |
| |
| // Increment and drop the shown count in prefs for the next time we're deciding to |
| // fade in the tooltip. We first sanity check that the tooltip count hasn't changed yet |
| // in prefs (say, from a long press). |
| if (getStoredShownCount() <= mShownCount) { |
| Prefs.putInt(mContext, Prefs.Key.QS_LONG_PRESS_TOOLTIP_SHOWN_COUNT, ++mShownCount); |
| } |
| } |
| } |
| |
| /** |
| * Fades out the header view if it's partially visible - short circuits any running animation. |
| */ |
| public void fadeOut() { |
| animate().cancel(); |
| if (getVisibility() == View.VISIBLE && getAlpha() != 0f) { |
| mHandler.removeCallbacks(mAutoFadeOutRunnable); |
| animate() |
| .alpha(0f) |
| .setDuration(FADE_ANIMATION_DURATION_MS) |
| .setListener(new AnimatorListenerAdapter() { |
| @Override |
| public void onAnimationEnd(Animator animation) { |
| perhapsMakeViewInvisible(); |
| } |
| }) |
| .start(); |
| } else { |
| perhapsMakeViewInvisible(); |
| } |
| } |
| |
| /** |
| * Only update visibility if the view is currently being shown. Otherwise, it's already been |
| * hidden by some other manner. |
| */ |
| private void perhapsMakeViewInvisible() { |
| if (getVisibility() == View.VISIBLE) { |
| setVisibility(View.INVISIBLE); |
| } |
| } |
| } |