GlobalScreenshot.java revision 80b54ded7442de38e60112e07773d7dd25ae26d2
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.View; 53import android.view.ViewGroup; 54import android.view.WindowManager; 55import android.view.animation.Interpolator; 56import android.widget.ImageView; 57 58import com.android.systemui.R; 59 60import java.io.File; 61import java.io.OutputStream; 62import java.text.SimpleDateFormat; 63import java.util.Date; 64 65/** 66 * POD used in the AsyncTask which saves an image in the background. 67 */ 68class SaveImageInBackgroundData { 69 Context context; 70 Bitmap image; 71 Uri imageUri; 72 Runnable finisher; 73 int iconSize; 74 int result; 75} 76 77/** 78 * An AsyncTask that saves an image to the media store in the background. 79 */ 80class SaveImageInBackgroundTask extends AsyncTask<SaveImageInBackgroundData, Void, 81 SaveImageInBackgroundData> { 82 private static final String SCREENSHOTS_DIR_NAME = "Screenshots"; 83 private static final String SCREENSHOT_FILE_NAME_TEMPLATE = "Screenshot_%s.png"; 84 private static final String SCREENSHOT_SHARE_SUBJECT_TEMPLATE = "Screenshot (%s)"; 85 86 private final int mNotificationId; 87 private final NotificationManager mNotificationManager; 88 private final Notification.Builder mNotificationBuilder; 89 private final File mScreenshotDir; 90 private final String mImageFileName; 91 private final String mImageFilePath; 92 private final long mImageTime; 93 private final BigPictureStyle mNotificationStyle; 94 private final int mImageWidth; 95 private final int mImageHeight; 96 97 // WORKAROUND: We want the same notification across screenshots that we update so that we don't 98 // spam a user's notification drawer. However, we only show the ticker for the saving state 99 // and if the ticker text is the same as the previous notification, then it will not show. So 100 // for now, we just add and remove a space from the ticker text to trigger the animation when 101 // necessary. 102 private static boolean mTickerAddSpace; 103 104 SaveImageInBackgroundTask(Context context, SaveImageInBackgroundData data, 105 NotificationManager nManager, int nId) { 106 Resources r = context.getResources(); 107 108 // Prepare all the output metadata 109 mImageTime = System.currentTimeMillis(); 110 String imageDate = new SimpleDateFormat("yyyy-MM-dd-HH-mm-ss").format(new Date(mImageTime)); 111 mImageFileName = String.format(SCREENSHOT_FILE_NAME_TEMPLATE, imageDate); 112 113 mScreenshotDir = new File(Environment.getExternalStoragePublicDirectory( 114 Environment.DIRECTORY_PICTURES), SCREENSHOTS_DIR_NAME); 115 mImageFilePath = new File(mScreenshotDir, mImageFileName).getAbsolutePath(); 116 117 // Create the large notification icon 118 mImageWidth = data.image.getWidth(); 119 mImageHeight = data.image.getHeight(); 120 int iconSize = data.iconSize; 121 122 final int shortSide = mImageWidth < mImageHeight ? mImageWidth : mImageHeight; 123 Bitmap preview = Bitmap.createBitmap(shortSide, shortSide, data.image.getConfig()); 124 Canvas c = new Canvas(preview); 125 Paint paint = new Paint(); 126 ColorMatrix desat = new ColorMatrix(); 127 desat.setSaturation(0.25f); 128 paint.setColorFilter(new ColorMatrixColorFilter(desat)); 129 Matrix matrix = new Matrix(); 130 matrix.postTranslate((shortSide - mImageWidth) / 2, 131 (shortSide - mImageHeight) / 2); 132 c.drawBitmap(data.image, matrix, paint); 133 c.drawColor(0x40FFFFFF); 134 135 Bitmap croppedIcon = Bitmap.createScaledBitmap(preview, iconSize, iconSize, true); 136 137 // Show the intermediate notification 138 mTickerAddSpace = !mTickerAddSpace; 139 mNotificationId = nId; 140 mNotificationManager = nManager; 141 mNotificationBuilder = new Notification.Builder(context) 142 .setTicker(r.getString(R.string.screenshot_saving_ticker) 143 + (mTickerAddSpace ? " " : "")) 144 .setContentTitle(r.getString(R.string.screenshot_saving_title)) 145 .setContentText(r.getString(R.string.screenshot_saving_text)) 146 .setSmallIcon(R.drawable.stat_notify_image) 147 .setWhen(System.currentTimeMillis()); 148 149 mNotificationStyle = new Notification.BigPictureStyle() 150 .bigPicture(preview); 151 mNotificationBuilder.setStyle(mNotificationStyle); 152 153 Notification n = mNotificationBuilder.build(); 154 n.flags |= Notification.FLAG_NO_CLEAR; 155 mNotificationManager.notify(nId, n); 156 157 // On the tablet, the large icon makes the notification appear as if it is clickable (and 158 // on small devices, the large icon is not shown) so defer showing the large icon until 159 // we compose the final post-save notification below. 160 mNotificationBuilder.setLargeIcon(croppedIcon); 161 // But we still don't set it for the expanded view, allowing the smallIcon to show here. 162 mNotificationStyle.bigLargeIcon(null); 163 } 164 165 @Override 166 protected SaveImageInBackgroundData doInBackground(SaveImageInBackgroundData... params) { 167 if (params.length != 1) return null; 168 169 // By default, AsyncTask sets the worker thread to have background thread priority, so bump 170 // it back up so that we save a little quicker. 171 Process.setThreadPriority(Process.THREAD_PRIORITY_FOREGROUND); 172 173 Context context = params[0].context; 174 Bitmap image = params[0].image; 175 Resources r = context.getResources(); 176 177 try { 178 // Create screenshot directory if it doesn't exist 179 mScreenshotDir.mkdirs(); 180 181 // Save the screenshot to the MediaStore 182 ContentValues values = new ContentValues(); 183 ContentResolver resolver = context.getContentResolver(); 184 values.put(MediaStore.Images.ImageColumns.DATA, mImageFilePath); 185 values.put(MediaStore.Images.ImageColumns.TITLE, mImageFileName); 186 values.put(MediaStore.Images.ImageColumns.DISPLAY_NAME, mImageFileName); 187 values.put(MediaStore.Images.ImageColumns.DATE_TAKEN, mImageTime); 188 values.put(MediaStore.Images.ImageColumns.DATE_ADDED, mImageTime); 189 values.put(MediaStore.Images.ImageColumns.DATE_MODIFIED, mImageTime); 190 values.put(MediaStore.Images.ImageColumns.MIME_TYPE, "image/png"); 191 values.put(MediaStore.Images.ImageColumns.WIDTH, mImageWidth); 192 values.put(MediaStore.Images.ImageColumns.HEIGHT, mImageHeight); 193 Uri uri = resolver.insert(MediaStore.Images.Media.EXTERNAL_CONTENT_URI, values); 194 195 String subjectDate = new SimpleDateFormat("hh:mma, MMM dd, yyyy") 196 .format(new Date(mImageTime)); 197 String subject = String.format(SCREENSHOT_SHARE_SUBJECT_TEMPLATE, subjectDate); 198 Intent sharingIntent = new Intent(Intent.ACTION_SEND); 199 sharingIntent.setType("image/png"); 200 sharingIntent.putExtra(Intent.EXTRA_STREAM, uri); 201 sharingIntent.putExtra(Intent.EXTRA_SUBJECT, subject); 202 203 Intent chooserIntent = Intent.createChooser(sharingIntent, null); 204 chooserIntent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TASK 205 | Intent.FLAG_ACTIVITY_NEW_TASK); 206 207 mNotificationBuilder.addAction(R.drawable.ic_menu_share, 208 r.getString(com.android.internal.R.string.share), 209 PendingIntent.getActivity(context, 0, chooserIntent, 210 PendingIntent.FLAG_CANCEL_CURRENT)); 211 212 OutputStream out = resolver.openOutputStream(uri); 213 image.compress(Bitmap.CompressFormat.PNG, 100, out); 214 out.flush(); 215 out.close(); 216 217 // update file size in the database 218 values.clear(); 219 values.put(MediaStore.Images.ImageColumns.SIZE, new File(mImageFilePath).length()); 220 resolver.update(uri, values, null, null); 221 222 params[0].imageUri = uri; 223 params[0].result = 0; 224 } catch (Exception e) { 225 // IOException/UnsupportedOperationException may be thrown if external storage is not 226 // mounted 227 params[0].result = 1; 228 } 229 230 return params[0]; 231 } 232 233 @Override 234 protected void onPostExecute(SaveImageInBackgroundData params) { 235 if (params.result > 0) { 236 // Show a message that we've failed to save the image to disk 237 GlobalScreenshot.notifyScreenshotError(params.context, mNotificationManager); 238 } else { 239 // Show the final notification to indicate screenshot saved 240 Resources r = params.context.getResources(); 241 242 // Create the intent to show the screenshot in gallery 243 Intent launchIntent = new Intent(Intent.ACTION_VIEW); 244 launchIntent.setDataAndType(params.imageUri, "image/png"); 245 launchIntent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK); 246 247 mNotificationBuilder 248 .setContentTitle(r.getString(R.string.screenshot_saved_title)) 249 .setContentText(r.getString(R.string.screenshot_saved_text)) 250 .setContentIntent(PendingIntent.getActivity(params.context, 0, launchIntent, 0)) 251 .setWhen(System.currentTimeMillis()) 252 .setAutoCancel(true); 253 254 Notification n = mNotificationBuilder.build(); 255 n.flags &= ~Notification.FLAG_NO_CLEAR; 256 mNotificationManager.notify(mNotificationId, n); 257 } 258 params.finisher.run(); 259 } 260} 261 262/** 263 * TODO: 264 * - Performance when over gl surfaces? Ie. Gallery 265 * - what do we say in the Toast? Which icon do we get if the user uses another 266 * type of gallery? 267 */ 268class GlobalScreenshot { 269 private static final int SCREENSHOT_NOTIFICATION_ID = 789; 270 private static final int SCREENSHOT_FLASH_TO_PEAK_DURATION = 130; 271 private static final int SCREENSHOT_DROP_IN_DURATION = 430; 272 private static final int SCREENSHOT_DROP_OUT_DELAY = 500; 273 private static final int SCREENSHOT_DROP_OUT_DURATION = 430; 274 private static final int SCREENSHOT_DROP_OUT_SCALE_DURATION = 370; 275 private static final int SCREENSHOT_FAST_DROP_OUT_DURATION = 320; 276 private static final float BACKGROUND_ALPHA = 0.5f; 277 private static final float SCREENSHOT_SCALE = 1f; 278 private static final float SCREENSHOT_DROP_IN_MIN_SCALE = SCREENSHOT_SCALE * 0.725f; 279 private static final float SCREENSHOT_DROP_OUT_MIN_SCALE = SCREENSHOT_SCALE * 0.45f; 280 private static final float SCREENSHOT_FAST_DROP_OUT_MIN_SCALE = SCREENSHOT_SCALE * 0.6f; 281 private static final float SCREENSHOT_DROP_OUT_MIN_SCALE_OFFSET = 0f; 282 283 private Context mContext; 284 private WindowManager mWindowManager; 285 private WindowManager.LayoutParams mWindowLayoutParams; 286 private NotificationManager mNotificationManager; 287 private Display mDisplay; 288 private DisplayMetrics mDisplayMetrics; 289 private Matrix mDisplayMatrix; 290 291 private Bitmap mScreenBitmap; 292 private View mScreenshotLayout; 293 private ImageView mBackgroundView; 294 private ImageView mScreenshotView; 295 private ImageView mScreenshotFlash; 296 297 private AnimatorSet mScreenshotAnimation; 298 299 private int mNotificationIconSize; 300 private float mBgPadding; 301 private float mBgPaddingScale; 302 303 private MediaActionSound mCameraSound; 304 305 306 /** 307 * @param context everything needs a context :( 308 */ 309 public GlobalScreenshot(Context context) { 310 Resources r = context.getResources(); 311 mContext = context; 312 LayoutInflater layoutInflater = (LayoutInflater) 313 context.getSystemService(Context.LAYOUT_INFLATER_SERVICE); 314 315 // Inflate the screenshot layout 316 mDisplayMatrix = new Matrix(); 317 mScreenshotLayout = layoutInflater.inflate(R.layout.global_screenshot, null); 318 mBackgroundView = (ImageView) mScreenshotLayout.findViewById(R.id.global_screenshot_background); 319 mScreenshotView = (ImageView) mScreenshotLayout.findViewById(R.id.global_screenshot); 320 mScreenshotFlash = (ImageView) mScreenshotLayout.findViewById(R.id.global_screenshot_flash); 321 mScreenshotLayout.setFocusable(true); 322 mScreenshotLayout.setOnTouchListener(new View.OnTouchListener() { 323 @Override 324 public boolean onTouch(View v, MotionEvent event) { 325 // Intercept and ignore all touch events 326 return true; 327 } 328 }); 329 330 // Setup the window that we are going to use 331 mWindowLayoutParams = new WindowManager.LayoutParams( 332 ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.MATCH_PARENT, 0, 0, 333 WindowManager.LayoutParams.TYPE_SECURE_SYSTEM_OVERLAY, 334 WindowManager.LayoutParams.FLAG_FULLSCREEN 335 | WindowManager.LayoutParams.FLAG_HARDWARE_ACCELERATED 336 | WindowManager.LayoutParams.FLAG_LAYOUT_IN_SCREEN 337 | WindowManager.LayoutParams.FLAG_SHOW_WHEN_LOCKED, 338 PixelFormat.TRANSLUCENT); 339 mWindowLayoutParams.setTitle("ScreenshotAnimation"); 340 mWindowManager = (WindowManager) context.getSystemService(Context.WINDOW_SERVICE); 341 mNotificationManager = 342 (NotificationManager) context.getSystemService(Context.NOTIFICATION_SERVICE); 343 mDisplay = mWindowManager.getDefaultDisplay(); 344 mDisplayMetrics = new DisplayMetrics(); 345 mDisplay.getRealMetrics(mDisplayMetrics); 346 347 // Get the various target sizes 348 mNotificationIconSize = 349 r.getDimensionPixelSize(android.R.dimen.notification_large_icon_height); 350 351 // Scale has to account for both sides of the bg 352 mBgPadding = (float) r.getDimensionPixelSize(R.dimen.global_screenshot_bg_padding); 353 mBgPaddingScale = mBgPadding / mDisplayMetrics.widthPixels; 354 355 // Setup the Camera shutter sound 356 mCameraSound = new MediaActionSound(); 357 mCameraSound.load(MediaActionSound.SHUTTER_CLICK); 358 } 359 360 /** 361 * Creates a new worker thread and saves the screenshot to the media store. 362 */ 363 private void saveScreenshotInWorkerThread(Runnable finisher) { 364 SaveImageInBackgroundData data = new SaveImageInBackgroundData(); 365 data.context = mContext; 366 data.image = mScreenBitmap; 367 data.iconSize = mNotificationIconSize; 368 data.finisher = finisher; 369 new SaveImageInBackgroundTask(mContext, data, mNotificationManager, 370 SCREENSHOT_NOTIFICATION_ID).execute(data); 371 } 372 373 /** 374 * @return the current display rotation in degrees 375 */ 376 private float getDegreesForRotation(int value) { 377 switch (value) { 378 case Surface.ROTATION_90: 379 return 360f - 90f; 380 case Surface.ROTATION_180: 381 return 360f - 180f; 382 case Surface.ROTATION_270: 383 return 360f - 270f; 384 } 385 return 0f; 386 } 387 388 /** 389 * Takes a screenshot of the current display and shows an animation. 390 */ 391 void takeScreenshot(Runnable finisher, boolean statusBarVisible, boolean navBarVisible) { 392 // We need to orient the screenshot correctly (and the Surface api seems to take screenshots 393 // only in the natural orientation of the device :!) 394 mDisplay.getRealMetrics(mDisplayMetrics); 395 float[] dims = {mDisplayMetrics.widthPixels, mDisplayMetrics.heightPixels}; 396 float degrees = getDegreesForRotation(mDisplay.getRotation()); 397 boolean requiresRotation = (degrees > 0); 398 if (requiresRotation) { 399 // Get the dimensions of the device in its native orientation 400 mDisplayMatrix.reset(); 401 mDisplayMatrix.preRotate(-degrees); 402 mDisplayMatrix.mapPoints(dims); 403 dims[0] = Math.abs(dims[0]); 404 dims[1] = Math.abs(dims[1]); 405 } 406 407 // Take the screenshot 408 mScreenBitmap = Surface.screenshot((int) dims[0], (int) dims[1]); 409 if (mScreenBitmap == null) { 410 notifyScreenshotError(mContext, mNotificationManager); 411 finisher.run(); 412 return; 413 } 414 415 if (requiresRotation) { 416 // Rotate the screenshot to the current orientation 417 Bitmap ss = Bitmap.createBitmap(mDisplayMetrics.widthPixels, 418 mDisplayMetrics.heightPixels, Bitmap.Config.ARGB_8888); 419 Canvas c = new Canvas(ss); 420 c.translate(ss.getWidth() / 2, ss.getHeight() / 2); 421 c.rotate(degrees); 422 c.translate(-dims[0] / 2, -dims[1] / 2); 423 c.drawBitmap(mScreenBitmap, 0, 0, null); 424 c.setBitmap(null); 425 mScreenBitmap = ss; 426 } 427 428 // Optimizations 429 mScreenBitmap.setHasAlpha(false); 430 mScreenBitmap.prepareToDraw(); 431 432 // Start the post-screenshot animation 433 startAnimation(finisher, mDisplayMetrics.widthPixels, mDisplayMetrics.heightPixels, 434 statusBarVisible, navBarVisible); 435 } 436 437 438 /** 439 * Starts the animation after taking the screenshot 440 */ 441 private void startAnimation(final Runnable finisher, int w, int h, boolean statusBarVisible, 442 boolean navBarVisible) { 443 // Add the view for the animation 444 mScreenshotView.setImageBitmap(mScreenBitmap); 445 mScreenshotLayout.requestFocus(); 446 447 // Setup the animation with the screenshot just taken 448 if (mScreenshotAnimation != null) { 449 mScreenshotAnimation.end(); 450 } 451 452 mWindowManager.addView(mScreenshotLayout, mWindowLayoutParams); 453 ValueAnimator screenshotDropInAnim = createScreenshotDropInAnimation(); 454 ValueAnimator screenshotFadeOutAnim = createScreenshotDropOutAnimation(w, h, 455 statusBarVisible, navBarVisible); 456 mScreenshotAnimation = new AnimatorSet(); 457 mScreenshotAnimation.playSequentially(screenshotDropInAnim, screenshotFadeOutAnim); 458 mScreenshotAnimation.addListener(new AnimatorListenerAdapter() { 459 @Override 460 public void onAnimationEnd(Animator animation) { 461 // Save the screenshot once we have a bit of time now 462 saveScreenshotInWorkerThread(finisher); 463 mWindowManager.removeView(mScreenshotLayout); 464 } 465 }); 466 mScreenshotLayout.post(new Runnable() { 467 @Override 468 public void run() { 469 // Play the shutter sound to notify that we've taken a screenshot 470 mCameraSound.play(MediaActionSound.SHUTTER_CLICK); 471 472 mScreenshotView.setLayerType(View.LAYER_TYPE_HARDWARE, null); 473 mScreenshotView.buildLayer(); 474 mScreenshotAnimation.start(); 475 } 476 }); 477 } 478 private ValueAnimator createScreenshotDropInAnimation() { 479 final float flashPeakDurationPct = ((float) (SCREENSHOT_FLASH_TO_PEAK_DURATION) 480 / SCREENSHOT_DROP_IN_DURATION); 481 final float flashDurationPct = 2f * flashPeakDurationPct; 482 final Interpolator flashAlphaInterpolator = new Interpolator() { 483 @Override 484 public float getInterpolation(float x) { 485 // Flash the flash view in and out quickly 486 if (x <= flashDurationPct) { 487 return (float) Math.sin(Math.PI * (x / flashDurationPct)); 488 } 489 return 0; 490 } 491 }; 492 final Interpolator scaleInterpolator = new Interpolator() { 493 @Override 494 public float getInterpolation(float x) { 495 // We start scaling when the flash is at it's peak 496 if (x < flashPeakDurationPct) { 497 return 0; 498 } 499 return (x - flashDurationPct) / (1f - flashDurationPct); 500 } 501 }; 502 ValueAnimator anim = ValueAnimator.ofFloat(0f, 1f); 503 anim.setDuration(SCREENSHOT_DROP_IN_DURATION); 504 anim.addListener(new AnimatorListenerAdapter() { 505 @Override 506 public void onAnimationStart(Animator animation) { 507 mBackgroundView.setAlpha(0f); 508 mBackgroundView.setVisibility(View.VISIBLE); 509 mScreenshotView.setAlpha(0f); 510 mScreenshotView.setTranslationX(0f); 511 mScreenshotView.setTranslationY(0f); 512 mScreenshotView.setScaleX(SCREENSHOT_SCALE + mBgPaddingScale); 513 mScreenshotView.setScaleY(SCREENSHOT_SCALE + mBgPaddingScale); 514 mScreenshotView.setVisibility(View.VISIBLE); 515 mScreenshotFlash.setAlpha(0f); 516 mScreenshotFlash.setVisibility(View.VISIBLE); 517 } 518 @Override 519 public void onAnimationEnd(android.animation.Animator animation) { 520 mScreenshotFlash.setVisibility(View.GONE); 521 } 522 }); 523 anim.addUpdateListener(new AnimatorUpdateListener() { 524 @Override 525 public void onAnimationUpdate(ValueAnimator animation) { 526 float t = (Float) animation.getAnimatedValue(); 527 float scaleT = (SCREENSHOT_SCALE + mBgPaddingScale) 528 - scaleInterpolator.getInterpolation(t) 529 * (SCREENSHOT_SCALE - SCREENSHOT_DROP_IN_MIN_SCALE); 530 mBackgroundView.setAlpha(scaleInterpolator.getInterpolation(t) * BACKGROUND_ALPHA); 531 mScreenshotView.setAlpha(t); 532 mScreenshotView.setScaleX(scaleT); 533 mScreenshotView.setScaleY(scaleT); 534 mScreenshotFlash.setAlpha(flashAlphaInterpolator.getInterpolation(t)); 535 } 536 }); 537 return anim; 538 } 539 private ValueAnimator createScreenshotDropOutAnimation(int w, int h, boolean statusBarVisible, 540 boolean navBarVisible) { 541 ValueAnimator anim = ValueAnimator.ofFloat(0f, 1f); 542 anim.setStartDelay(SCREENSHOT_DROP_OUT_DELAY); 543 anim.addListener(new AnimatorListenerAdapter() { 544 @Override 545 public void onAnimationEnd(Animator animation) { 546 mBackgroundView.setVisibility(View.GONE); 547 mScreenshotView.setVisibility(View.GONE); 548 mScreenshotView.setLayerType(View.LAYER_TYPE_NONE, null); 549 } 550 }); 551 552 if (!statusBarVisible || !navBarVisible) { 553 // There is no status bar/nav bar, so just fade the screenshot away in place 554 anim.setDuration(SCREENSHOT_FAST_DROP_OUT_DURATION); 555 anim.addUpdateListener(new AnimatorUpdateListener() { 556 @Override 557 public void onAnimationUpdate(ValueAnimator animation) { 558 float t = (Float) animation.getAnimatedValue(); 559 float scaleT = (SCREENSHOT_DROP_IN_MIN_SCALE + mBgPaddingScale) 560 - t * (SCREENSHOT_DROP_IN_MIN_SCALE - SCREENSHOT_FAST_DROP_OUT_MIN_SCALE); 561 mBackgroundView.setAlpha((1f - t) * BACKGROUND_ALPHA); 562 mScreenshotView.setAlpha(1f - t); 563 mScreenshotView.setScaleX(scaleT); 564 mScreenshotView.setScaleY(scaleT); 565 } 566 }); 567 } else { 568 // In the case where there is a status bar, animate to the origin of the bar (top-left) 569 final float scaleDurationPct = (float) SCREENSHOT_DROP_OUT_SCALE_DURATION 570 / SCREENSHOT_DROP_OUT_DURATION; 571 final Interpolator scaleInterpolator = new Interpolator() { 572 @Override 573 public float getInterpolation(float x) { 574 if (x < scaleDurationPct) { 575 // Decelerate, and scale the input accordingly 576 return (float) (1f - Math.pow(1f - (x / scaleDurationPct), 2f)); 577 } 578 return 1f; 579 } 580 }; 581 582 // Determine the bounds of how to scale 583 float halfScreenWidth = (w - 2f * mBgPadding) / 2f; 584 float halfScreenHeight = (h - 2f * mBgPadding) / 2f; 585 final float offsetPct = SCREENSHOT_DROP_OUT_MIN_SCALE_OFFSET; 586 final PointF finalPos = new PointF( 587 -halfScreenWidth + (SCREENSHOT_DROP_OUT_MIN_SCALE + offsetPct) * halfScreenWidth, 588 -halfScreenHeight + (SCREENSHOT_DROP_OUT_MIN_SCALE + offsetPct) * halfScreenHeight); 589 590 // Animate the screenshot to the status bar 591 anim.setDuration(SCREENSHOT_DROP_OUT_DURATION); 592 anim.addUpdateListener(new AnimatorUpdateListener() { 593 @Override 594 public void onAnimationUpdate(ValueAnimator animation) { 595 float t = (Float) animation.getAnimatedValue(); 596 float scaleT = (SCREENSHOT_DROP_IN_MIN_SCALE + mBgPaddingScale) 597 - scaleInterpolator.getInterpolation(t) 598 * (SCREENSHOT_DROP_IN_MIN_SCALE - SCREENSHOT_DROP_OUT_MIN_SCALE); 599 mBackgroundView.setAlpha((1f - t) * BACKGROUND_ALPHA); 600 mScreenshotView.setAlpha(1f - scaleInterpolator.getInterpolation(t)); 601 mScreenshotView.setScaleX(scaleT); 602 mScreenshotView.setScaleY(scaleT); 603 mScreenshotView.setTranslationX(t * finalPos.x); 604 mScreenshotView.setTranslationY(t * finalPos.y); 605 } 606 }); 607 } 608 return anim; 609 } 610 611 static void notifyScreenshotError(Context context, NotificationManager nManager) { 612 Resources r = context.getResources(); 613 614 // Clear all existing notification, compose the new notification and show it 615 Notification.Builder b = new Notification.Builder(context) 616 .setTicker(r.getString(R.string.screenshot_failed_title)) 617 .setContentTitle(r.getString(R.string.screenshot_failed_title)) 618 .setContentText(r.getString(R.string.screenshot_failed_text)) 619 .setSmallIcon(R.drawable.stat_notify_image_error) 620 .setWhen(System.currentTimeMillis()) 621 .setAutoCancel(true); 622 Notification n = 623 new Notification.BigTextStyle(b) 624 .bigText(r.getString(R.string.screenshot_failed_text)) 625 .build(); 626 nManager.notify(SCREENSHOT_NOTIFICATION_ID, n); 627 } 628} 629