Adrian Roos | 2e3ccbb | 2014-08-19 22:23:37 +0200 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2014 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 | |
| 17 | package com.android.systemui.statusbar.phone; |
| 18 | |
| 19 | import com.android.systemui.R; |
| 20 | |
| 21 | import android.animation.Animator; |
| 22 | import android.animation.AnimatorListenerAdapter; |
| 23 | import android.animation.AnimatorSet; |
| 24 | import android.animation.ValueAnimator; |
| 25 | import android.content.Context; |
| 26 | import android.content.res.Resources; |
| 27 | import android.graphics.Canvas; |
| 28 | import android.graphics.Color; |
| 29 | import android.graphics.ColorFilter; |
| 30 | import android.graphics.Paint; |
| 31 | import android.graphics.PixelFormat; |
| 32 | import android.graphics.Rect; |
| 33 | import android.graphics.drawable.Drawable; |
| 34 | import android.view.animation.AccelerateDecelerateInterpolator; |
| 35 | import android.view.animation.AnimationUtils; |
| 36 | import android.view.animation.Interpolator; |
| 37 | |
| 38 | public class TrustDrawable extends Drawable { |
| 39 | |
| 40 | private static final long ENTERING_FROM_UNSET_START_DELAY = 200; |
| 41 | private static final long VISIBLE_DURATION = 1000; |
| 42 | private static final long EXIT_DURATION = 500; |
| 43 | private static final long ENTER_DURATION = 500; |
| 44 | |
| 45 | private static final int ALPHA_VISIBLE_MIN = 0x26; |
| 46 | private static final int ALPHA_VISIBLE_MAX = 0x4c; |
| 47 | |
| 48 | private static final int STATE_UNSET = -1; |
| 49 | private static final int STATE_GONE = 0; |
| 50 | private static final int STATE_ENTERING = 1; |
| 51 | private static final int STATE_VISIBLE = 2; |
| 52 | private static final int STATE_EXITING = 3; |
| 53 | |
| 54 | private int mAlpha; |
| 55 | private boolean mAnimating; |
| 56 | |
| 57 | private int mCurAlpha; |
| 58 | private float mCurInnerRadius; |
| 59 | private Animator mCurAnimator; |
| 60 | private int mState = STATE_UNSET; |
| 61 | private Paint mPaint; |
| 62 | private boolean mTrustManaged; |
| 63 | |
| 64 | private final float mInnerRadiusVisibleMin; |
| 65 | private final float mInnerRadiusVisibleMax; |
| 66 | private final float mInnerRadiusExit; |
| 67 | private final float mInnerRadiusEnter; |
| 68 | private final float mThickness; |
| 69 | |
| 70 | private final Animator mVisibleAnimator; |
| 71 | |
| 72 | private final Interpolator mLinearOutSlowInInterpolator; |
| 73 | private final Interpolator mFastOutSlowInInterpolator; |
| 74 | private final Interpolator mAccelerateDecelerateInterpolator; |
| 75 | |
| 76 | public TrustDrawable(Context context) { |
| 77 | Resources r = context.getResources(); |
| 78 | mInnerRadiusVisibleMin = r.getDimension(R.dimen.trust_circle_inner_radius_visible_min); |
| 79 | mInnerRadiusVisibleMax = r.getDimension(R.dimen.trust_circle_inner_radius_visible_max); |
| 80 | mInnerRadiusExit = r.getDimension(R.dimen.trust_circle_inner_radius_exit); |
| 81 | mInnerRadiusEnter = r.getDimension(R.dimen.trust_circle_inner_radius_enter); |
| 82 | mThickness = r.getDimension(R.dimen.trust_circle_thickness); |
| 83 | |
| 84 | mCurInnerRadius = mInnerRadiusEnter; |
| 85 | |
| 86 | mLinearOutSlowInInterpolator = AnimationUtils.loadInterpolator( |
| 87 | context, android.R.interpolator.linear_out_slow_in); |
| 88 | mFastOutSlowInInterpolator = AnimationUtils.loadInterpolator( |
| 89 | context, android.R.interpolator.fast_out_slow_in); |
| 90 | mAccelerateDecelerateInterpolator = new AccelerateDecelerateInterpolator(); |
| 91 | |
| 92 | mVisibleAnimator = makeVisibleAnimator(); |
| 93 | |
| 94 | mPaint = new Paint(); |
| 95 | mPaint.setStyle(Paint.Style.STROKE); |
| 96 | mPaint.setColor(Color.WHITE); |
| 97 | mPaint.setAntiAlias(true); |
| 98 | mPaint.setStrokeWidth(mThickness); |
| 99 | } |
| 100 | |
| 101 | @Override |
| 102 | public void draw(Canvas canvas) { |
| 103 | int newAlpha = (mCurAlpha * mAlpha) / 256; |
| 104 | if (newAlpha == 0) { |
| 105 | return; |
| 106 | } |
| 107 | final Rect r = getBounds(); |
| 108 | mPaint.setAlpha(newAlpha); |
| 109 | canvas.drawCircle(r.exactCenterX(), r.exactCenterY(), mCurInnerRadius, mPaint); |
| 110 | } |
| 111 | |
| 112 | @Override |
| 113 | public void setAlpha(int alpha) { |
| 114 | mAlpha = alpha; |
| 115 | } |
| 116 | |
| 117 | @Override |
| 118 | public int getAlpha() { |
| 119 | return mAlpha; |
| 120 | } |
| 121 | |
| 122 | @Override |
| 123 | public void setColorFilter(ColorFilter cf) { |
| 124 | throw new UnsupportedOperationException("not implemented"); |
| 125 | } |
| 126 | |
| 127 | @Override |
| 128 | public int getOpacity() { |
| 129 | return PixelFormat.TRANSLUCENT; |
| 130 | } |
| 131 | |
| 132 | public void start() { |
| 133 | if (!mAnimating) { |
| 134 | mAnimating = true; |
| 135 | updateState(true); |
Adrian Roos | 1540da4 | 2014-10-15 14:56:28 +0200 | [diff] [blame] | 136 | invalidateSelf(); |
Adrian Roos | 2e3ccbb | 2014-08-19 22:23:37 +0200 | [diff] [blame] | 137 | } |
| 138 | } |
| 139 | |
| 140 | public void stop() { |
| 141 | if (mAnimating) { |
| 142 | mAnimating = false; |
| 143 | if (mCurAnimator != null) { |
| 144 | mCurAnimator.cancel(); |
| 145 | mCurAnimator = null; |
| 146 | } |
| 147 | mState = STATE_UNSET; |
| 148 | mCurAlpha = 0; |
| 149 | mCurInnerRadius = mInnerRadiusEnter; |
Adrian Roos | 1540da4 | 2014-10-15 14:56:28 +0200 | [diff] [blame] | 150 | invalidateSelf(); |
Adrian Roos | 2e3ccbb | 2014-08-19 22:23:37 +0200 | [diff] [blame] | 151 | } |
| 152 | } |
| 153 | |
| 154 | public void setTrustManaged(boolean trustManaged) { |
| 155 | if (trustManaged == mTrustManaged && mState != STATE_UNSET) return; |
| 156 | mTrustManaged = trustManaged; |
Adrian Roos | 1540da4 | 2014-10-15 14:56:28 +0200 | [diff] [blame] | 157 | updateState(true); |
Adrian Roos | 2e3ccbb | 2014-08-19 22:23:37 +0200 | [diff] [blame] | 158 | } |
| 159 | |
Adrian Roos | 1540da4 | 2014-10-15 14:56:28 +0200 | [diff] [blame] | 160 | private void updateState(boolean allowTransientState) { |
| 161 | if (!mAnimating) { |
| 162 | return; |
| 163 | } |
| 164 | |
Adrian Roos | 2e3ccbb | 2014-08-19 22:23:37 +0200 | [diff] [blame] | 165 | int nextState = mState; |
| 166 | if (mState == STATE_UNSET) { |
| 167 | nextState = mTrustManaged ? STATE_ENTERING : STATE_GONE; |
| 168 | } else if (mState == STATE_GONE) { |
| 169 | if (mTrustManaged) nextState = STATE_ENTERING; |
| 170 | } else if (mState == STATE_ENTERING) { |
| 171 | if (!mTrustManaged) nextState = STATE_EXITING; |
| 172 | } else if (mState == STATE_VISIBLE) { |
| 173 | if (!mTrustManaged) nextState = STATE_EXITING; |
| 174 | } else if (mState == STATE_EXITING) { |
| 175 | if (mTrustManaged) nextState = STATE_ENTERING; |
| 176 | } |
Adrian Roos | 1540da4 | 2014-10-15 14:56:28 +0200 | [diff] [blame] | 177 | if (!allowTransientState) { |
Adrian Roos | 2e3ccbb | 2014-08-19 22:23:37 +0200 | [diff] [blame] | 178 | if (nextState == STATE_ENTERING) nextState = STATE_VISIBLE; |
| 179 | if (nextState == STATE_EXITING) nextState = STATE_GONE; |
| 180 | } |
| 181 | |
| 182 | if (nextState != mState) { |
| 183 | if (mCurAnimator != null) { |
| 184 | mCurAnimator.cancel(); |
| 185 | mCurAnimator = null; |
| 186 | } |
| 187 | |
| 188 | if (nextState == STATE_GONE) { |
| 189 | mCurAlpha = 0; |
| 190 | mCurInnerRadius = mInnerRadiusEnter; |
| 191 | } else if (nextState == STATE_ENTERING) { |
| 192 | mCurAnimator = makeEnterAnimator(mCurInnerRadius, mCurAlpha); |
| 193 | if (mState == STATE_UNSET) { |
| 194 | mCurAnimator.setStartDelay(ENTERING_FROM_UNSET_START_DELAY); |
| 195 | } |
| 196 | } else if (nextState == STATE_VISIBLE) { |
| 197 | mCurAlpha = ALPHA_VISIBLE_MAX; |
| 198 | mCurInnerRadius = mInnerRadiusVisibleMax; |
| 199 | mCurAnimator = mVisibleAnimator; |
| 200 | } else if (nextState == STATE_EXITING) { |
| 201 | mCurAnimator = makeExitAnimator(mCurInnerRadius, mCurAlpha); |
| 202 | } |
| 203 | |
| 204 | mState = nextState; |
| 205 | if (mCurAnimator != null) { |
| 206 | mCurAnimator.start(); |
Adrian Roos | 2e3ccbb | 2014-08-19 22:23:37 +0200 | [diff] [blame] | 207 | } |
Adrian Roos | 1540da4 | 2014-10-15 14:56:28 +0200 | [diff] [blame] | 208 | invalidateSelf(); |
Adrian Roos | 2e3ccbb | 2014-08-19 22:23:37 +0200 | [diff] [blame] | 209 | } |
| 210 | } |
| 211 | |
| 212 | private Animator makeVisibleAnimator() { |
| 213 | return makeAnimators(mInnerRadiusVisibleMax, mInnerRadiusVisibleMin, |
| 214 | ALPHA_VISIBLE_MAX, ALPHA_VISIBLE_MIN, VISIBLE_DURATION, |
| 215 | mAccelerateDecelerateInterpolator, |
| 216 | true /* repeating */, false /* stateUpdateListener */); |
| 217 | } |
| 218 | |
| 219 | private Animator makeEnterAnimator(float radius, int alpha) { |
| 220 | return makeAnimators(radius, mInnerRadiusVisibleMax, |
| 221 | alpha, ALPHA_VISIBLE_MAX, ENTER_DURATION, mLinearOutSlowInInterpolator, |
| 222 | false /* repeating */, true /* stateUpdateListener */); |
| 223 | } |
| 224 | |
| 225 | private Animator makeExitAnimator(float radius, int alpha) { |
| 226 | return makeAnimators(radius, mInnerRadiusExit, |
| 227 | alpha, 0, EXIT_DURATION, mFastOutSlowInInterpolator, |
| 228 | false /* repeating */, true /* stateUpdateListener */); |
| 229 | } |
| 230 | |
| 231 | private Animator makeAnimators(float startRadius, float endRadius, |
| 232 | int startAlpha, int endAlpha, long duration, Interpolator interpolator, |
| 233 | boolean repeating, boolean stateUpdateListener) { |
| 234 | ValueAnimator alphaAnimator = configureAnimator( |
| 235 | ValueAnimator.ofInt(startAlpha, endAlpha), |
| 236 | duration, mAlphaUpdateListener, interpolator, repeating); |
| 237 | ValueAnimator sizeAnimator = configureAnimator( |
| 238 | ValueAnimator.ofFloat(startRadius, endRadius), |
| 239 | duration, mRadiusUpdateListener, interpolator, repeating); |
| 240 | |
| 241 | AnimatorSet set = new AnimatorSet(); |
| 242 | set.playTogether(alphaAnimator, sizeAnimator); |
| 243 | if (stateUpdateListener) { |
| 244 | set.addListener(new StateUpdateAnimatorListener()); |
| 245 | } |
| 246 | return set; |
| 247 | } |
| 248 | |
| 249 | private ValueAnimator configureAnimator(ValueAnimator animator, long duration, |
| 250 | ValueAnimator.AnimatorUpdateListener updateListener, Interpolator interpolator, |
| 251 | boolean repeating) { |
| 252 | animator.setDuration(duration); |
| 253 | animator.addUpdateListener(updateListener); |
| 254 | animator.setInterpolator(interpolator); |
| 255 | if (repeating) { |
| 256 | animator.setRepeatCount(ValueAnimator.INFINITE); |
| 257 | animator.setRepeatMode(ValueAnimator.REVERSE); |
| 258 | } |
| 259 | return animator; |
| 260 | } |
| 261 | |
| 262 | private final ValueAnimator.AnimatorUpdateListener mAlphaUpdateListener = |
| 263 | new ValueAnimator.AnimatorUpdateListener() { |
| 264 | @Override |
| 265 | public void onAnimationUpdate(ValueAnimator animation) { |
| 266 | mCurAlpha = (int) animation.getAnimatedValue(); |
| 267 | invalidateSelf(); |
| 268 | } |
| 269 | }; |
| 270 | |
| 271 | private final ValueAnimator.AnimatorUpdateListener mRadiusUpdateListener = |
| 272 | new ValueAnimator.AnimatorUpdateListener() { |
| 273 | @Override |
| 274 | public void onAnimationUpdate(ValueAnimator animation) { |
| 275 | mCurInnerRadius = (float) animation.getAnimatedValue(); |
| 276 | invalidateSelf(); |
| 277 | } |
| 278 | }; |
| 279 | |
| 280 | private class StateUpdateAnimatorListener extends AnimatorListenerAdapter { |
| 281 | boolean mCancelled; |
| 282 | |
| 283 | @Override |
| 284 | public void onAnimationStart(Animator animation) { |
| 285 | mCancelled = false; |
| 286 | } |
| 287 | |
| 288 | @Override |
| 289 | public void onAnimationCancel(Animator animation) { |
| 290 | mCancelled = true; |
| 291 | } |
| 292 | |
| 293 | @Override |
| 294 | public void onAnimationEnd(Animator animation) { |
| 295 | if (!mCancelled) { |
| 296 | updateState(false); |
| 297 | } |
| 298 | } |
| 299 | } |
| 300 | } |