GlobalScreenshot.java revision 209bede6b9edb9171e5bee4077b48e35004a37b4
1/* 2 * Copyright (C) 2011 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.screenshot; 18 19import android.animation.Animator; 20import android.animation.AnimatorListenerAdapter; 21import android.animation.AnimatorSet; 22import android.animation.ValueAnimator; 23import android.animation.ValueAnimator.AnimatorUpdateListener; 24import android.app.Notification; 25import android.app.Notification.BigPictureStyle; 26import android.app.NotificationManager; 27import android.app.PendingIntent; 28import android.content.ContentResolver; 29import android.content.ContentValues; 30import android.content.Context; 31import android.content.Intent; 32import android.content.res.Resources; 33import android.graphics.Bitmap; 34import android.graphics.Canvas; 35import android.graphics.ColorMatrix; 36import android.graphics.ColorMatrixColorFilter; 37import android.graphics.Matrix; 38import android.graphics.Paint; 39import android.graphics.PixelFormat; 40import android.graphics.PointF; 41import android.media.MediaActionSound; 42import android.net.Uri; 43import android.os.AsyncTask; 44import android.os.Environment; 45import android.os.Process; 46import android.provider.MediaStore; 47import android.util.DisplayMetrics; 48import android.view.Display; 49import android.view.LayoutInflater; 50import android.view.MotionEvent; 51import android.view.Surface; 52import android.view.SurfaceControl; 53import android.view.View; 54import android.view.ViewGroup; 55import android.view.WindowManager; 56import android.view.animation.Interpolator; 57import android.widget.ImageView; 58 59import com.android.systemui.R; 60 61import java.io.File; 62import java.io.OutputStream; 63import java.text.SimpleDateFormat; 64import java.util.Date; 65 66/** 67 * POD used in the AsyncTask which saves an image in the background. 68 */ 69class SaveImageInBackgroundData { 70 Context context; 71 Bitmap image; 72 Uri imageUri; 73 Runnable finisher; 74 int iconSize; 75 int result; 76 77 void clearImage() { 78 image = null; 79 imageUri = null; 80 iconSize = 0; 81 } 82 void clearContext() { 83 context = null; 84 } 85} 86 87/** 88 * An AsyncTask that saves an image to the media store in the background. 89 */ 90class SaveImageInBackgroundTask extends AsyncTask<SaveImageInBackgroundData, Void, 91 SaveImageInBackgroundData> { 92 private static final String TAG = "SaveImageInBackgroundTask"; 93 94 private static final String SCREENSHOTS_DIR_NAME = "Screenshots"; 95 private static final String SCREENSHOT_FILE_NAME_TEMPLATE = "Screenshot_%s.png"; 96 private static final String SCREENSHOT_SHARE_SUBJECT_TEMPLATE = "Screenshot (%s)"; 97 98 private final int mNotificationId; 99 private final NotificationManager mNotificationManager; 100 private final Notification.Builder mNotificationBuilder; 101 private final File mScreenshotDir; 102 private final String mImageFileName; 103 private final String mImageFilePath; 104 private final long mImageTime; 105 private final BigPictureStyle mNotificationStyle; 106 private final int mImageWidth; 107 private final int mImageHeight; 108 109 // WORKAROUND: We want the same notification across screenshots that we update so that we don't 110 // spam a user's notification drawer. However, we only show the ticker for the saving state 111 // and if the ticker text is the same as the previous notification, then it will not show. So 112 // for now, we just add and remove a space from the ticker text to trigger the animation when 113 // necessary. 114 private static boolean mTickerAddSpace; 115 116 SaveImageInBackgroundTask(Context context, SaveImageInBackgroundData data, 117 NotificationManager nManager, int nId) { 118 Resources r = context.getResources(); 119 120 // Prepare all the output metadata 121 mImageTime = System.currentTimeMillis(); 122 String imageDate = new SimpleDateFormat("yyyy-MM-dd-HH-mm-ss").format(new Date(mImageTime)); 123 mImageFileName = String.format(SCREENSHOT_FILE_NAME_TEMPLATE, imageDate); 124 125 mScreenshotDir = new File(Environment.getExternalStoragePublicDirectory( 126 Environment.DIRECTORY_PICTURES), SCREENSHOTS_DIR_NAME); 127 mImageFilePath = new File(mScreenshotDir, mImageFileName).getAbsolutePath(); 128 129 // Create the large notification icon 130 mImageWidth = data.image.getWidth(); 131 mImageHeight = data.image.getHeight(); 132 int iconSize = data.iconSize; 133 134 final int shortSide = mImageWidth < mImageHeight ? mImageWidth : mImageHeight; 135 Bitmap preview = Bitmap.createBitmap(shortSide, shortSide, data.image.getConfig()); 136 Canvas c = new Canvas(preview); 137 Paint paint = new Paint(); 138 ColorMatrix desat = new ColorMatrix(); 139 desat.setSaturation(0.25f); 140 paint.setColorFilter(new ColorMatrixColorFilter(desat)); 141 Matrix matrix = new Matrix(); 142 matrix.postTranslate((shortSide - mImageWidth) / 2, 143 (shortSide - mImageHeight) / 2); 144 c.drawBitmap(data.image, matrix, paint); 145 c.drawColor(0x40FFFFFF); 146 c.setBitmap(null); 147 148 Bitmap croppedIcon = Bitmap.createScaledBitmap(preview, iconSize, iconSize, true); 149 150 // Show the intermediate notification 151 mTickerAddSpace = !mTickerAddSpace; 152 mNotificationId = nId; 153 mNotificationManager = nManager; 154 mNotificationBuilder = new Notification.Builder(context) 155 .setTicker(r.getString(R.string.screenshot_saving_ticker) 156 + (mTickerAddSpace ? " " : "")) 157 .setContentTitle(r.getString(R.string.screenshot_saving_title)) 158 .setContentText(r.getString(R.string.screenshot_saving_text)) 159 .setSmallIcon(R.drawable.stat_notify_image) 160 .setWhen(System.currentTimeMillis()); 161 162 mNotificationStyle = new Notification.BigPictureStyle() 163 .bigPicture(preview); 164 mNotificationBuilder.setStyle(mNotificationStyle); 165 166 Notification n = mNotificationBuilder.build(); 167 n.flags |= Notification.FLAG_NO_CLEAR; 168 mNotificationManager.notify(nId, n); 169 170 // On the tablet, the large icon makes the notification appear as if it is clickable (and 171 // on small devices, the large icon is not shown) so defer showing the large icon until 172 // we compose the final post-save notification below. 173 mNotificationBuilder.setLargeIcon(croppedIcon); 174 // But we still don't set it for the expanded view, allowing the smallIcon to show here. 175 mNotificationStyle.bigLargeIcon(null); 176 } 177 178 @Override 179 protected SaveImageInBackgroundData doInBackground(SaveImageInBackgroundData... params) { 180 if (params.length != 1) return null; 181 if (isCancelled()) { 182 params[0].clearImage(); 183 params[0].clearContext(); 184 return null; 185 } 186 187 // By default, AsyncTask sets the worker thread to have background thread priority, so bump 188 // it back up so that we save a little quicker. 189 Process.setThreadPriority(Process.THREAD_PRIORITY_FOREGROUND); 190 191 Context context = params[0].context; 192 Bitmap image = params[0].image; 193 Resources r = context.getResources(); 194 195 try { 196 // Create screenshot directory if it doesn't exist 197 mScreenshotDir.mkdirs(); 198 199 // media provider uses seconds, not milliseconds 200 long dateSeconds = mImageTime / 1000; 201 202 // Save the screenshot to the MediaStore 203 ContentValues values = new ContentValues(); 204 ContentResolver resolver = context.getContentResolver(); 205 values.put(MediaStore.Images.ImageColumns.DATA, mImageFilePath); 206 values.put(MediaStore.Images.ImageColumns.TITLE, mImageFileName); 207 values.put(MediaStore.Images.ImageColumns.DISPLAY_NAME, mImageFileName); 208 values.put(MediaStore.Images.ImageColumns.DATE_TAKEN, dateSeconds); 209 values.put(MediaStore.Images.ImageColumns.DATE_ADDED, dateSeconds); 210 values.put(MediaStore.Images.ImageColumns.DATE_MODIFIED, dateSeconds); 211 values.put(MediaStore.Images.ImageColumns.MIME_TYPE, "image/png"); 212 values.put(MediaStore.Images.ImageColumns.WIDTH, mImageWidth); 213 values.put(MediaStore.Images.ImageColumns.HEIGHT, mImageHeight); 214 Uri uri = resolver.insert(MediaStore.Images.Media.EXTERNAL_CONTENT_URI, values); 215 216 String subjectDate = new SimpleDateFormat("hh:mma, MMM dd, yyyy") 217 .format(new Date(mImageTime)); 218 String subject = String.format(SCREENSHOT_SHARE_SUBJECT_TEMPLATE, subjectDate); 219 Intent sharingIntent = new Intent(Intent.ACTION_SEND); 220 sharingIntent.setType("image/png"); 221 sharingIntent.putExtra(Intent.EXTRA_STREAM, uri); 222 sharingIntent.putExtra(Intent.EXTRA_SUBJECT, subject); 223 224 Intent chooserIntent = Intent.createChooser(sharingIntent, null); 225 chooserIntent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TASK 226 | Intent.FLAG_ACTIVITY_NEW_TASK); 227 228 mNotificationBuilder.addAction(R.drawable.ic_menu_share, 229 r.getString(com.android.internal.R.string.share), 230 PendingIntent.getActivity(context, 0, chooserIntent, 231 PendingIntent.FLAG_CANCEL_CURRENT)); 232 233 OutputStream out = resolver.openOutputStream(uri); 234 image.compress(Bitmap.CompressFormat.PNG, 100, out); 235 out.flush(); 236 out.close(); 237 238 // update file size in the database 239 values.clear(); 240 values.put(MediaStore.Images.ImageColumns.SIZE, new File(mImageFilePath).length()); 241 resolver.update(uri, values, null, null); 242 243 params[0].imageUri = uri; 244 params[0].image = null; 245 params[0].result = 0; 246 } catch (Exception e) { 247 // IOException/UnsupportedOperationException may be thrown if external storage is not 248 // mounted 249 params[0].clearImage(); 250 params[0].result = 1; 251 } 252 253 // Recycle the bitmap data 254 if (image != null) { 255 image.recycle(); 256 } 257 258 return params[0]; 259 } 260 261 @Override 262 protected void onPostExecute(SaveImageInBackgroundData params) { 263 if (isCancelled()) { 264 params.finisher.run(); 265 params.clearImage(); 266 params.clearContext(); 267 return; 268 } 269 270 if (params.result > 0) { 271 // Show a message that we've failed to save the image to disk 272 GlobalScreenshot.notifyScreenshotError(params.context, mNotificationManager); 273 } else { 274 // Show the final notification to indicate screenshot saved 275 Resources r = params.context.getResources(); 276 277 // Create the intent to show the screenshot in gallery 278 Intent launchIntent = new Intent(Intent.ACTION_VIEW); 279 launchIntent.setDataAndType(params.imageUri, "image/png"); 280 launchIntent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK); 281 282 mNotificationBuilder 283 .setContentTitle(r.getString(R.string.screenshot_saved_title)) 284 .setContentText(r.getString(R.string.screenshot_saved_text)) 285 .setContentIntent(PendingIntent.getActivity(params.context, 0, launchIntent, 0)) 286 .setWhen(System.currentTimeMillis()) 287 .setAutoCancel(true); 288 289 Notification n = mNotificationBuilder.build(); 290 n.flags &= ~Notification.FLAG_NO_CLEAR; 291 mNotificationManager.notify(mNotificationId, n); 292 } 293 params.finisher.run(); 294 params.clearContext(); 295 } 296} 297 298/** 299 * TODO: 300 * - Performance when over gl surfaces? Ie. Gallery 301 * - what do we say in the Toast? Which icon do we get if the user uses another 302 * type of gallery? 303 */ 304class GlobalScreenshot { 305 private static final String TAG = "GlobalScreenshot"; 306 307 private static final int SCREENSHOT_NOTIFICATION_ID = 789; 308 private static final int SCREENSHOT_FLASH_TO_PEAK_DURATION = 130; 309 private static final int SCREENSHOT_DROP_IN_DURATION = 430; 310 private static final int SCREENSHOT_DROP_OUT_DELAY = 500; 311 private static final int SCREENSHOT_DROP_OUT_DURATION = 430; 312 private static final int SCREENSHOT_DROP_OUT_SCALE_DURATION = 370; 313 private static final int SCREENSHOT_FAST_DROP_OUT_DURATION = 320; 314 private static final float BACKGROUND_ALPHA = 0.5f; 315 private static final float SCREENSHOT_SCALE = 1f; 316 private static final float SCREENSHOT_DROP_IN_MIN_SCALE = SCREENSHOT_SCALE * 0.725f; 317 private static final float SCREENSHOT_DROP_OUT_MIN_SCALE = SCREENSHOT_SCALE * 0.45f; 318 private static final float SCREENSHOT_FAST_DROP_OUT_MIN_SCALE = SCREENSHOT_SCALE * 0.6f; 319 private static final float SCREENSHOT_DROP_OUT_MIN_SCALE_OFFSET = 0f; 320 321 private Context mContext; 322 private WindowManager mWindowManager; 323 private WindowManager.LayoutParams mWindowLayoutParams; 324 private NotificationManager mNotificationManager; 325 private Display mDisplay; 326 private DisplayMetrics mDisplayMetrics; 327 private Matrix mDisplayMatrix; 328 329 private Bitmap mScreenBitmap; 330 private View mScreenshotLayout; 331 private ImageView mBackgroundView; 332 private ImageView mScreenshotView; 333 private ImageView mScreenshotFlash; 334 335 private AnimatorSet mScreenshotAnimation; 336 337 private int mNotificationIconSize; 338 private float mBgPadding; 339 private float mBgPaddingScale; 340 341 private AsyncTask<SaveImageInBackgroundData, Void, SaveImageInBackgroundData> mSaveInBgTask; 342 343 private MediaActionSound mCameraSound; 344 345 346 /** 347 * @param context everything needs a context :( 348 */ 349 public GlobalScreenshot(Context context) { 350 Resources r = context.getResources(); 351 mContext = context; 352 LayoutInflater layoutInflater = (LayoutInflater) 353 context.getSystemService(Context.LAYOUT_INFLATER_SERVICE); 354 355 // Inflate the screenshot layout 356 mDisplayMatrix = new Matrix(); 357 mScreenshotLayout = layoutInflater.inflate(R.layout.global_screenshot, null); 358 mBackgroundView = (ImageView) mScreenshotLayout.findViewById(R.id.global_screenshot_background); 359 mScreenshotView = (ImageView) mScreenshotLayout.findViewById(R.id.global_screenshot); 360 mScreenshotFlash = (ImageView) mScreenshotLayout.findViewById(R.id.global_screenshot_flash); 361 mScreenshotLayout.setFocusable(true); 362 mScreenshotLayout.setOnTouchListener(new View.OnTouchListener() { 363 @Override 364 public boolean onTouch(View v, MotionEvent event) { 365 // Intercept and ignore all touch events 366 return true; 367 } 368 }); 369 370 // Setup the window that we are going to use 371 mWindowLayoutParams = new WindowManager.LayoutParams( 372 ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.MATCH_PARENT, 0, 0, 373 WindowManager.LayoutParams.TYPE_SECURE_SYSTEM_OVERLAY, 374 WindowManager.LayoutParams.FLAG_FULLSCREEN 375 | WindowManager.LayoutParams.FLAG_HARDWARE_ACCELERATED 376 | WindowManager.LayoutParams.FLAG_LAYOUT_IN_SCREEN 377 | WindowManager.LayoutParams.FLAG_SHOW_WHEN_LOCKED, 378 PixelFormat.TRANSLUCENT); 379 mWindowLayoutParams.setTitle("ScreenshotAnimation"); 380 mWindowManager = (WindowManager) context.getSystemService(Context.WINDOW_SERVICE); 381 mNotificationManager = 382 (NotificationManager) context.getSystemService(Context.NOTIFICATION_SERVICE); 383 mDisplay = mWindowManager.getDefaultDisplay(); 384 mDisplayMetrics = new DisplayMetrics(); 385 mDisplay.getRealMetrics(mDisplayMetrics); 386 387 // Get the various target sizes 388 mNotificationIconSize = 389 r.getDimensionPixelSize(android.R.dimen.notification_large_icon_height); 390 391 // Scale has to account for both sides of the bg 392 mBgPadding = (float) r.getDimensionPixelSize(R.dimen.global_screenshot_bg_padding); 393 mBgPaddingScale = mBgPadding / mDisplayMetrics.widthPixels; 394 395 // Setup the Camera shutter sound 396 mCameraSound = new MediaActionSound(); 397 mCameraSound.load(MediaActionSound.SHUTTER_CLICK); 398 } 399 400 /** 401 * Creates a new worker thread and saves the screenshot to the media store. 402 */ 403 private void saveScreenshotInWorkerThread(Runnable finisher) { 404 SaveImageInBackgroundData data = new SaveImageInBackgroundData(); 405 data.context = mContext; 406 data.image = mScreenBitmap; 407 data.iconSize = mNotificationIconSize; 408 data.finisher = finisher; 409 if (mSaveInBgTask != null) { 410 mSaveInBgTask.cancel(false); 411 } 412 mSaveInBgTask = new SaveImageInBackgroundTask(mContext, data, mNotificationManager, 413 SCREENSHOT_NOTIFICATION_ID).execute(data); 414 } 415 416 /** 417 * @return the current display rotation in degrees 418 */ 419 private float getDegreesForRotation(int value) { 420 switch (value) { 421 case Surface.ROTATION_90: 422 return 360f - 90f; 423 case Surface.ROTATION_180: 424 return 360f - 180f; 425 case Surface.ROTATION_270: 426 return 360f - 270f; 427 } 428 return 0f; 429 } 430 431 /** 432 * Takes a screenshot of the current display and shows an animation. 433 */ 434 void takeScreenshot(Runnable finisher, boolean statusBarVisible, boolean navBarVisible) { 435 // We need to orient the screenshot correctly (and the Surface api seems to take screenshots 436 // only in the natural orientation of the device :!) 437 mDisplay.getRealMetrics(mDisplayMetrics); 438 float[] dims = {mDisplayMetrics.widthPixels, mDisplayMetrics.heightPixels}; 439 float degrees = getDegreesForRotation(mDisplay.getRotation()); 440 boolean requiresRotation = (degrees > 0); 441 if (requiresRotation) { 442 // Get the dimensions of the device in its native orientation 443 mDisplayMatrix.reset(); 444 mDisplayMatrix.preRotate(-degrees); 445 mDisplayMatrix.mapPoints(dims); 446 dims[0] = Math.abs(dims[0]); 447 dims[1] = Math.abs(dims[1]); 448 } 449 450 // Take the screenshot 451 mScreenBitmap = SurfaceControl.screenshot((int) dims[0], (int) dims[1]); 452 if (mScreenBitmap == null) { 453 notifyScreenshotError(mContext, mNotificationManager); 454 finisher.run(); 455 return; 456 } 457 458 if (requiresRotation) { 459 // Rotate the screenshot to the current orientation 460 Bitmap ss = Bitmap.createBitmap(mDisplayMetrics.widthPixels, 461 mDisplayMetrics.heightPixels, Bitmap.Config.ARGB_8888); 462 Canvas c = new Canvas(ss); 463 c.translate(ss.getWidth() / 2, ss.getHeight() / 2); 464 c.rotate(degrees); 465 c.translate(-dims[0] / 2, -dims[1] / 2); 466 c.drawBitmap(mScreenBitmap, 0, 0, null); 467 c.setBitmap(null); 468 // Recycle the previous bitmap 469 mScreenBitmap.recycle(); 470 mScreenBitmap = ss; 471 } 472 473 // Optimizations 474 mScreenBitmap.setHasAlpha(false); 475 mScreenBitmap.prepareToDraw(); 476 477 // Start the post-screenshot animation 478 startAnimation(finisher, mDisplayMetrics.widthPixels, mDisplayMetrics.heightPixels, 479 statusBarVisible, navBarVisible); 480 } 481 482 483 /** 484 * Starts the animation after taking the screenshot 485 */ 486 private void startAnimation(final Runnable finisher, int w, int h, boolean statusBarVisible, 487 boolean navBarVisible) { 488 // Add the view for the animation 489 mScreenshotView.setImageBitmap(mScreenBitmap); 490 mScreenshotLayout.requestFocus(); 491 492 // Setup the animation with the screenshot just taken 493 if (mScreenshotAnimation != null) { 494 mScreenshotAnimation.end(); 495 mScreenshotAnimation.removeAllListeners(); 496 } 497 498 mWindowManager.addView(mScreenshotLayout, mWindowLayoutParams); 499 ValueAnimator screenshotDropInAnim = createScreenshotDropInAnimation(); 500 ValueAnimator screenshotFadeOutAnim = createScreenshotDropOutAnimation(w, h, 501 statusBarVisible, navBarVisible); 502 mScreenshotAnimation = new AnimatorSet(); 503 mScreenshotAnimation.playSequentially(screenshotDropInAnim, screenshotFadeOutAnim); 504 mScreenshotAnimation.addListener(new AnimatorListenerAdapter() { 505 @Override 506 public void onAnimationEnd(Animator animation) { 507 // Save the screenshot once we have a bit of time now 508 saveScreenshotInWorkerThread(finisher); 509 mWindowManager.removeView(mScreenshotLayout); 510 511 // Clear any references to the bitmap 512 mScreenBitmap = null; 513 mScreenshotView.setImageBitmap(null); 514 } 515 }); 516 mScreenshotLayout.post(new Runnable() { 517 @Override 518 public void run() { 519 // Play the shutter sound to notify that we've taken a screenshot 520 mCameraSound.play(MediaActionSound.SHUTTER_CLICK); 521 522 mScreenshotView.setLayerType(View.LAYER_TYPE_HARDWARE, null); 523 mScreenshotView.buildLayer(); 524 mScreenshotAnimation.start(); 525 } 526 }); 527 } 528 private ValueAnimator createScreenshotDropInAnimation() { 529 final float flashPeakDurationPct = ((float) (SCREENSHOT_FLASH_TO_PEAK_DURATION) 530 / SCREENSHOT_DROP_IN_DURATION); 531 final float flashDurationPct = 2f * flashPeakDurationPct; 532 final Interpolator flashAlphaInterpolator = new Interpolator() { 533 @Override 534 public float getInterpolation(float x) { 535 // Flash the flash view in and out quickly 536 if (x <= flashDurationPct) { 537 return (float) Math.sin(Math.PI * (x / flashDurationPct)); 538 } 539 return 0; 540 } 541 }; 542 final Interpolator scaleInterpolator = new Interpolator() { 543 @Override 544 public float getInterpolation(float x) { 545 // We start scaling when the flash is at it's peak 546 if (x < flashPeakDurationPct) { 547 return 0; 548 } 549 return (x - flashDurationPct) / (1f - flashDurationPct); 550 } 551 }; 552 ValueAnimator anim = ValueAnimator.ofFloat(0f, 1f); 553 anim.setDuration(SCREENSHOT_DROP_IN_DURATION); 554 anim.addListener(new AnimatorListenerAdapter() { 555 @Override 556 public void onAnimationStart(Animator animation) { 557 mBackgroundView.setAlpha(0f); 558 mBackgroundView.setVisibility(View.VISIBLE); 559 mScreenshotView.setAlpha(0f); 560 mScreenshotView.setTranslationX(0f); 561 mScreenshotView.setTranslationY(0f); 562 mScreenshotView.setScaleX(SCREENSHOT_SCALE + mBgPaddingScale); 563 mScreenshotView.setScaleY(SCREENSHOT_SCALE + mBgPaddingScale); 564 mScreenshotView.setVisibility(View.VISIBLE); 565 mScreenshotFlash.setAlpha(0f); 566 mScreenshotFlash.setVisibility(View.VISIBLE); 567 } 568 @Override 569 public void onAnimationEnd(android.animation.Animator animation) { 570 mScreenshotFlash.setVisibility(View.GONE); 571 } 572 }); 573 anim.addUpdateListener(new AnimatorUpdateListener() { 574 @Override 575 public void onAnimationUpdate(ValueAnimator animation) { 576 float t = (Float) animation.getAnimatedValue(); 577 float scaleT = (SCREENSHOT_SCALE + mBgPaddingScale) 578 - scaleInterpolator.getInterpolation(t) 579 * (SCREENSHOT_SCALE - SCREENSHOT_DROP_IN_MIN_SCALE); 580 mBackgroundView.setAlpha(scaleInterpolator.getInterpolation(t) * BACKGROUND_ALPHA); 581 mScreenshotView.setAlpha(t); 582 mScreenshotView.setScaleX(scaleT); 583 mScreenshotView.setScaleY(scaleT); 584 mScreenshotFlash.setAlpha(flashAlphaInterpolator.getInterpolation(t)); 585 } 586 }); 587 return anim; 588 } 589 private ValueAnimator createScreenshotDropOutAnimation(int w, int h, boolean statusBarVisible, 590 boolean navBarVisible) { 591 ValueAnimator anim = ValueAnimator.ofFloat(0f, 1f); 592 anim.setStartDelay(SCREENSHOT_DROP_OUT_DELAY); 593 anim.addListener(new AnimatorListenerAdapter() { 594 @Override 595 public void onAnimationEnd(Animator animation) { 596 mBackgroundView.setVisibility(View.GONE); 597 mScreenshotView.setVisibility(View.GONE); 598 mScreenshotView.setLayerType(View.LAYER_TYPE_NONE, null); 599 } 600 }); 601 602 if (!statusBarVisible || !navBarVisible) { 603 // There is no status bar/nav bar, so just fade the screenshot away in place 604 anim.setDuration(SCREENSHOT_FAST_DROP_OUT_DURATION); 605 anim.addUpdateListener(new AnimatorUpdateListener() { 606 @Override 607 public void onAnimationUpdate(ValueAnimator animation) { 608 float t = (Float) animation.getAnimatedValue(); 609 float scaleT = (SCREENSHOT_DROP_IN_MIN_SCALE + mBgPaddingScale) 610 - t * (SCREENSHOT_DROP_IN_MIN_SCALE - SCREENSHOT_FAST_DROP_OUT_MIN_SCALE); 611 mBackgroundView.setAlpha((1f - t) * BACKGROUND_ALPHA); 612 mScreenshotView.setAlpha(1f - t); 613 mScreenshotView.setScaleX(scaleT); 614 mScreenshotView.setScaleY(scaleT); 615 } 616 }); 617 } else { 618 // In the case where there is a status bar, animate to the origin of the bar (top-left) 619 final float scaleDurationPct = (float) SCREENSHOT_DROP_OUT_SCALE_DURATION 620 / SCREENSHOT_DROP_OUT_DURATION; 621 final Interpolator scaleInterpolator = new Interpolator() { 622 @Override 623 public float getInterpolation(float x) { 624 if (x < scaleDurationPct) { 625 // Decelerate, and scale the input accordingly 626 return (float) (1f - Math.pow(1f - (x / scaleDurationPct), 2f)); 627 } 628 return 1f; 629 } 630 }; 631 632 // Determine the bounds of how to scale 633 float halfScreenWidth = (w - 2f * mBgPadding) / 2f; 634 float halfScreenHeight = (h - 2f * mBgPadding) / 2f; 635 final float offsetPct = SCREENSHOT_DROP_OUT_MIN_SCALE_OFFSET; 636 final PointF finalPos = new PointF( 637 -halfScreenWidth + (SCREENSHOT_DROP_OUT_MIN_SCALE + offsetPct) * halfScreenWidth, 638 -halfScreenHeight + (SCREENSHOT_DROP_OUT_MIN_SCALE + offsetPct) * halfScreenHeight); 639 640 // Animate the screenshot to the status bar 641 anim.setDuration(SCREENSHOT_DROP_OUT_DURATION); 642 anim.addUpdateListener(new AnimatorUpdateListener() { 643 @Override 644 public void onAnimationUpdate(ValueAnimator animation) { 645 float t = (Float) animation.getAnimatedValue(); 646 float scaleT = (SCREENSHOT_DROP_IN_MIN_SCALE + mBgPaddingScale) 647 - scaleInterpolator.getInterpolation(t) 648 * (SCREENSHOT_DROP_IN_MIN_SCALE - SCREENSHOT_DROP_OUT_MIN_SCALE); 649 mBackgroundView.setAlpha((1f - t) * BACKGROUND_ALPHA); 650 mScreenshotView.setAlpha(1f - scaleInterpolator.getInterpolation(t)); 651 mScreenshotView.setScaleX(scaleT); 652 mScreenshotView.setScaleY(scaleT); 653 mScreenshotView.setTranslationX(t * finalPos.x); 654 mScreenshotView.setTranslationY(t * finalPos.y); 655 } 656 }); 657 } 658 return anim; 659 } 660 661 static void notifyScreenshotError(Context context, NotificationManager nManager) { 662 Resources r = context.getResources(); 663 664 // Clear all existing notification, compose the new notification and show it 665 Notification.Builder b = new Notification.Builder(context) 666 .setTicker(r.getString(R.string.screenshot_failed_title)) 667 .setContentTitle(r.getString(R.string.screenshot_failed_title)) 668 .setContentText(r.getString(R.string.screenshot_failed_text)) 669 .setSmallIcon(R.drawable.stat_notify_image_error) 670 .setWhen(System.currentTimeMillis()) 671 .setAutoCancel(true); 672 Notification n = 673 new Notification.BigTextStyle(b) 674 .bigText(r.getString(R.string.screenshot_failed_text)) 675 .build(); 676 nManager.notify(SCREENSHOT_NOTIFICATION_ID, n); 677 } 678} 679