PhoneStatusBarTransitions.java revision acea100015dffbb77d137b0681d6c34992e72ae9 
1/*
2 * Copyright (C) 2013 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17package com.android.systemui.statusbar.phone;
18
19import android.animation.Animator;
20import android.animation.AnimatorSet;
21import android.animation.ObjectAnimator;
22import android.content.res.Resources;
23import android.view.View;
24
25import com.android.systemui.R;
26
27public final class PhoneStatusBarTransitions extends BarTransitions {
28    private static final float ICON_ALPHA_WHEN_NOT_OPAQUE = 1;
29    private static final float ICON_ALPHA_WHEN_LIGHTS_OUT_BATTERY_CLOCK = 0.5f;
30    private static final float ICON_ALPHA_WHEN_LIGHTS_OUT_NON_BATTERY_CLOCK = 0;
31
32    private final PhoneStatusBarView mView;
33    private final float mIconAlphaWhenOpaque;
34
35    private View mLeftSide, mStatusIcons, mSignalCluster, mBattery, mClock;
36    private Animator mCurrentAnimation;
37
38    public PhoneStatusBarTransitions(PhoneStatusBarView view) {
39        super(view, R.drawable.status_background);
40        mView = view;
41        final Resources res = mView.getContext().getResources();
42        mIconAlphaWhenOpaque = res.getFraction(R.dimen.status_bar_icon_drawing_alpha, 1, 1);
43    }
44
45    public void init() {
46        mLeftSide = mView.findViewById(R.id.notification_icon_area);
47        mStatusIcons = mView.findViewById(R.id.statusIcons);
48        mSignalCluster = mView.findViewById(R.id.signal_cluster);
49        mBattery = mView.findViewById(R.id.battery);
50        mClock = mView.findViewById(R.id.clock);
51        applyModeBackground(-1, getMode(), false /*animate*/);
52        applyMode(getMode(), false /*animate*/);
53    }
54
55    public ObjectAnimator animateTransitionTo(View v, float toAlpha) {
56        return ObjectAnimator.ofFloat(v, "alpha", v.getAlpha(), toAlpha);
57    }
58
59    private float getNonBatteryClockAlphaFor(int mode) {
60        return mode == MODE_LIGHTS_OUT ? ICON_ALPHA_WHEN_LIGHTS_OUT_NON_BATTERY_CLOCK
61                : !isOpaque(mode) ? ICON_ALPHA_WHEN_NOT_OPAQUE
62                : mIconAlphaWhenOpaque;
63    }
64
65    private float getBatteryClockAlpha(int mode) {
66        return mode == MODE_LIGHTS_OUT ? ICON_ALPHA_WHEN_LIGHTS_OUT_BATTERY_CLOCK
67                : getNonBatteryClockAlphaFor(mode);
68    }
69
70    private boolean isOpaque(int mode) {
71        return !(mode == MODE_SEMI_TRANSPARENT || mode == MODE_TRANSLUCENT);
72    }
73
74    @Override
75    protected void onTransition(int oldMode, int newMode, boolean animate) {
76        super.onTransition(oldMode, newMode, animate);
77        applyMode(newMode, animate);
78    }
79
80    private void applyMode(int mode, boolean animate) {
81        if (mLeftSide == null) return; // pre-init
82        float newAlpha = getNonBatteryClockAlphaFor(mode);
83        float newAlphaBC = getBatteryClockAlpha(mode);
84        if (mCurrentAnimation != null) {
85            mCurrentAnimation.cancel();
86        }
87        if (animate) {
88            AnimatorSet anims = new AnimatorSet();
89            anims.playTogether(
90                    animateTransitionTo(mLeftSide, newAlpha),
91                    animateTransitionTo(mStatusIcons, newAlpha),
92                    animateTransitionTo(mSignalCluster, newAlpha),
93                    animateTransitionTo(mBattery, newAlphaBC),
94                    animateTransitionTo(mClock, newAlphaBC)
95                    );
96            if (mode == MODE_LIGHTS_OUT) {
97                anims.setDuration(LIGHTS_OUT_DURATION);
98            }
99            anims.start();
100            mCurrentAnimation = anims;
101        } else {
102            mLeftSide.setAlpha(newAlpha);
103            mStatusIcons.setAlpha(newAlpha);
104            mSignalCluster.setAlpha(newAlpha);
105            mBattery.setAlpha(newAlphaBC);
106            mClock.setAlpha(newAlphaBC);
107        }
108    }
109}