Michael Kolb | 8872c23 | 2013-01-29 10:33:22 -0800 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2009 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.camera; |
| 18 | |
| 19 | import android.annotation.TargetApi; |
| 20 | import android.app.Activity; |
| 21 | import android.app.AlertDialog; |
| 22 | import android.app.admin.DevicePolicyManager; |
| 23 | import android.content.ActivityNotFoundException; |
| 24 | import android.content.ContentResolver; |
| 25 | import android.content.Context; |
| 26 | import android.content.DialogInterface; |
| 27 | import android.content.Intent; |
| 28 | import android.graphics.Bitmap; |
| 29 | import android.graphics.BitmapFactory; |
| 30 | import android.graphics.Matrix; |
| 31 | import android.graphics.Point; |
| 32 | import android.graphics.Rect; |
| 33 | import android.graphics.RectF; |
| 34 | import android.hardware.Camera; |
| 35 | import android.hardware.Camera.CameraInfo; |
| 36 | import android.hardware.Camera.Parameters; |
| 37 | import android.hardware.Camera.Size; |
| 38 | import android.location.Location; |
| 39 | import android.net.Uri; |
| 40 | import android.os.Build; |
| 41 | import android.os.ParcelFileDescriptor; |
| 42 | import android.telephony.TelephonyManager; |
| 43 | import android.util.DisplayMetrics; |
| 44 | import android.util.FloatMath; |
| 45 | import android.util.Log; |
| 46 | import android.util.TypedValue; |
| 47 | import android.view.Display; |
| 48 | import android.view.OrientationEventListener; |
| 49 | import android.view.Surface; |
| 50 | import android.view.View; |
| 51 | import android.view.WindowManager; |
| 52 | import android.view.animation.AlphaAnimation; |
| 53 | import android.view.animation.Animation; |
Angus Kong | b40738a | 2013-06-03 14:55:34 -0700 | [diff] [blame^] | 54 | import android.widget.Toast; |
Michael Kolb | 8872c23 | 2013-01-29 10:33:22 -0800 | [diff] [blame] | 55 | |
John Reck | 54987e8 | 2013-02-15 15:51:30 -0800 | [diff] [blame] | 56 | import com.android.gallery3d.R; |
Angus Kong | b40738a | 2013-06-03 14:55:34 -0700 | [diff] [blame^] | 57 | import com.android.gallery3d.app.MovieActivity; |
Michael Kolb | 8872c23 | 2013-01-29 10:33:22 -0800 | [diff] [blame] | 58 | import com.android.gallery3d.common.ApiHelper; |
| 59 | |
| 60 | import java.io.Closeable; |
| 61 | import java.io.IOException; |
| 62 | import java.lang.reflect.Method; |
| 63 | import java.text.SimpleDateFormat; |
| 64 | import java.util.Date; |
| 65 | import java.util.List; |
| 66 | import java.util.StringTokenizer; |
| 67 | |
| 68 | /** |
| 69 | * Collection of utility functions used in this package. |
| 70 | */ |
| 71 | public class Util { |
| 72 | private static final String TAG = "Util"; |
| 73 | |
| 74 | // Orientation hysteresis amount used in rounding, in degrees |
| 75 | public static final int ORIENTATION_HYSTERESIS = 5; |
| 76 | |
| 77 | public static final String REVIEW_ACTION = "com.android.camera.action.REVIEW"; |
| 78 | // See android.hardware.Camera.ACTION_NEW_PICTURE. |
| 79 | public static final String ACTION_NEW_PICTURE = "android.hardware.action.NEW_PICTURE"; |
| 80 | // See android.hardware.Camera.ACTION_NEW_VIDEO. |
| 81 | public static final String ACTION_NEW_VIDEO = "android.hardware.action.NEW_VIDEO"; |
| 82 | |
| 83 | // Fields from android.hardware.Camera.Parameters |
| 84 | public static final String FOCUS_MODE_CONTINUOUS_PICTURE = "continuous-picture"; |
| 85 | public static final String RECORDING_HINT = "recording-hint"; |
| 86 | private static final String AUTO_EXPOSURE_LOCK_SUPPORTED = "auto-exposure-lock-supported"; |
| 87 | private static final String AUTO_WHITE_BALANCE_LOCK_SUPPORTED = "auto-whitebalance-lock-supported"; |
| 88 | private static final String VIDEO_SNAPSHOT_SUPPORTED = "video-snapshot-supported"; |
| 89 | public static final String SCENE_MODE_HDR = "hdr"; |
| 90 | public static final String TRUE = "true"; |
| 91 | public static final String FALSE = "false"; |
| 92 | |
| 93 | public static boolean isSupported(String value, List<String> supported) { |
| 94 | return supported == null ? false : supported.indexOf(value) >= 0; |
| 95 | } |
| 96 | |
| 97 | public static boolean isAutoExposureLockSupported(Parameters params) { |
| 98 | return TRUE.equals(params.get(AUTO_EXPOSURE_LOCK_SUPPORTED)); |
| 99 | } |
| 100 | |
| 101 | public static boolean isAutoWhiteBalanceLockSupported(Parameters params) { |
| 102 | return TRUE.equals(params.get(AUTO_WHITE_BALANCE_LOCK_SUPPORTED)); |
| 103 | } |
| 104 | |
| 105 | public static boolean isVideoSnapshotSupported(Parameters params) { |
| 106 | return TRUE.equals(params.get(VIDEO_SNAPSHOT_SUPPORTED)); |
| 107 | } |
| 108 | |
| 109 | public static boolean isCameraHdrSupported(Parameters params) { |
| 110 | List<String> supported = params.getSupportedSceneModes(); |
| 111 | return (supported != null) && supported.contains(SCENE_MODE_HDR); |
| 112 | } |
| 113 | |
| 114 | @TargetApi(ApiHelper.VERSION_CODES.ICE_CREAM_SANDWICH) |
| 115 | public static boolean isMeteringAreaSupported(Parameters params) { |
| 116 | if (ApiHelper.HAS_CAMERA_METERING_AREA) { |
| 117 | return params.getMaxNumMeteringAreas() > 0; |
| 118 | } |
| 119 | return false; |
| 120 | } |
| 121 | |
| 122 | @TargetApi(ApiHelper.VERSION_CODES.ICE_CREAM_SANDWICH) |
| 123 | public static boolean isFocusAreaSupported(Parameters params) { |
| 124 | if (ApiHelper.HAS_CAMERA_FOCUS_AREA) { |
| 125 | return (params.getMaxNumFocusAreas() > 0 |
| 126 | && isSupported(Parameters.FOCUS_MODE_AUTO, |
| 127 | params.getSupportedFocusModes())); |
| 128 | } |
| 129 | return false; |
| 130 | } |
| 131 | |
| 132 | // Private intent extras. Test only. |
| 133 | private static final String EXTRAS_CAMERA_FACING = |
| 134 | "android.intent.extras.CAMERA_FACING"; |
| 135 | |
| 136 | private static float sPixelDensity = 1; |
| 137 | private static ImageFileNamer sImageFileNamer; |
| 138 | |
| 139 | private Util() { |
| 140 | } |
| 141 | |
| 142 | public static void initialize(Context context) { |
| 143 | DisplayMetrics metrics = new DisplayMetrics(); |
| 144 | WindowManager wm = (WindowManager) |
| 145 | context.getSystemService(Context.WINDOW_SERVICE); |
| 146 | wm.getDefaultDisplay().getMetrics(metrics); |
| 147 | sPixelDensity = metrics.density; |
| 148 | sImageFileNamer = new ImageFileNamer( |
| 149 | context.getString(R.string.image_file_name_format)); |
| 150 | } |
| 151 | |
| 152 | public static int dpToPixel(int dp) { |
| 153 | return Math.round(sPixelDensity * dp); |
| 154 | } |
| 155 | |
| 156 | // Rotates the bitmap by the specified degree. |
| 157 | // If a new bitmap is created, the original bitmap is recycled. |
| 158 | public static Bitmap rotate(Bitmap b, int degrees) { |
| 159 | return rotateAndMirror(b, degrees, false); |
| 160 | } |
| 161 | |
| 162 | // Rotates and/or mirrors the bitmap. If a new bitmap is created, the |
| 163 | // original bitmap is recycled. |
| 164 | public static Bitmap rotateAndMirror(Bitmap b, int degrees, boolean mirror) { |
| 165 | if ((degrees != 0 || mirror) && b != null) { |
| 166 | Matrix m = new Matrix(); |
| 167 | // Mirror first. |
| 168 | // horizontal flip + rotation = -rotation + horizontal flip |
| 169 | if (mirror) { |
| 170 | m.postScale(-1, 1); |
| 171 | degrees = (degrees + 360) % 360; |
| 172 | if (degrees == 0 || degrees == 180) { |
| 173 | m.postTranslate(b.getWidth(), 0); |
| 174 | } else if (degrees == 90 || degrees == 270) { |
| 175 | m.postTranslate(b.getHeight(), 0); |
| 176 | } else { |
| 177 | throw new IllegalArgumentException("Invalid degrees=" + degrees); |
| 178 | } |
| 179 | } |
| 180 | if (degrees != 0) { |
| 181 | // clockwise |
| 182 | m.postRotate(degrees, |
| 183 | (float) b.getWidth() / 2, (float) b.getHeight() / 2); |
| 184 | } |
| 185 | |
| 186 | try { |
| 187 | Bitmap b2 = Bitmap.createBitmap( |
| 188 | b, 0, 0, b.getWidth(), b.getHeight(), m, true); |
| 189 | if (b != b2) { |
| 190 | b.recycle(); |
| 191 | b = b2; |
| 192 | } |
| 193 | } catch (OutOfMemoryError ex) { |
| 194 | // We have no memory to rotate. Return the original bitmap. |
| 195 | } |
| 196 | } |
| 197 | return b; |
| 198 | } |
| 199 | |
| 200 | /* |
| 201 | * Compute the sample size as a function of minSideLength |
| 202 | * and maxNumOfPixels. |
| 203 | * minSideLength is used to specify that minimal width or height of a |
| 204 | * bitmap. |
| 205 | * maxNumOfPixels is used to specify the maximal size in pixels that is |
| 206 | * tolerable in terms of memory usage. |
| 207 | * |
| 208 | * The function returns a sample size based on the constraints. |
| 209 | * Both size and minSideLength can be passed in as -1 |
| 210 | * which indicates no care of the corresponding constraint. |
| 211 | * The functions prefers returning a sample size that |
| 212 | * generates a smaller bitmap, unless minSideLength = -1. |
| 213 | * |
| 214 | * Also, the function rounds up the sample size to a power of 2 or multiple |
| 215 | * of 8 because BitmapFactory only honors sample size this way. |
| 216 | * For example, BitmapFactory downsamples an image by 2 even though the |
| 217 | * request is 3. So we round up the sample size to avoid OOM. |
| 218 | */ |
| 219 | public static int computeSampleSize(BitmapFactory.Options options, |
| 220 | int minSideLength, int maxNumOfPixels) { |
| 221 | int initialSize = computeInitialSampleSize(options, minSideLength, |
| 222 | maxNumOfPixels); |
| 223 | |
| 224 | int roundedSize; |
| 225 | if (initialSize <= 8) { |
| 226 | roundedSize = 1; |
| 227 | while (roundedSize < initialSize) { |
| 228 | roundedSize <<= 1; |
| 229 | } |
| 230 | } else { |
| 231 | roundedSize = (initialSize + 7) / 8 * 8; |
| 232 | } |
| 233 | |
| 234 | return roundedSize; |
| 235 | } |
| 236 | |
| 237 | private static int computeInitialSampleSize(BitmapFactory.Options options, |
| 238 | int minSideLength, int maxNumOfPixels) { |
| 239 | double w = options.outWidth; |
| 240 | double h = options.outHeight; |
| 241 | |
| 242 | int lowerBound = (maxNumOfPixels < 0) ? 1 : |
| 243 | (int) Math.ceil(Math.sqrt(w * h / maxNumOfPixels)); |
| 244 | int upperBound = (minSideLength < 0) ? 128 : |
| 245 | (int) Math.min(Math.floor(w / minSideLength), |
| 246 | Math.floor(h / minSideLength)); |
| 247 | |
| 248 | if (upperBound < lowerBound) { |
| 249 | // return the larger one when there is no overlapping zone. |
| 250 | return lowerBound; |
| 251 | } |
| 252 | |
| 253 | if (maxNumOfPixels < 0 && minSideLength < 0) { |
| 254 | return 1; |
| 255 | } else if (minSideLength < 0) { |
| 256 | return lowerBound; |
| 257 | } else { |
| 258 | return upperBound; |
| 259 | } |
| 260 | } |
| 261 | |
| 262 | public static Bitmap makeBitmap(byte[] jpegData, int maxNumOfPixels) { |
| 263 | try { |
| 264 | BitmapFactory.Options options = new BitmapFactory.Options(); |
| 265 | options.inJustDecodeBounds = true; |
| 266 | BitmapFactory.decodeByteArray(jpegData, 0, jpegData.length, |
| 267 | options); |
| 268 | if (options.mCancel || options.outWidth == -1 |
| 269 | || options.outHeight == -1) { |
| 270 | return null; |
| 271 | } |
| 272 | options.inSampleSize = computeSampleSize( |
| 273 | options, -1, maxNumOfPixels); |
| 274 | options.inJustDecodeBounds = false; |
| 275 | |
| 276 | options.inDither = false; |
| 277 | options.inPreferredConfig = Bitmap.Config.ARGB_8888; |
| 278 | return BitmapFactory.decodeByteArray(jpegData, 0, jpegData.length, |
| 279 | options); |
| 280 | } catch (OutOfMemoryError ex) { |
| 281 | Log.e(TAG, "Got oom exception ", ex); |
| 282 | return null; |
| 283 | } |
| 284 | } |
| 285 | |
| 286 | public static void closeSilently(Closeable c) { |
| 287 | if (c == null) return; |
| 288 | try { |
| 289 | c.close(); |
| 290 | } catch (Throwable t) { |
| 291 | // do nothing |
| 292 | } |
| 293 | } |
| 294 | |
| 295 | public static void Assert(boolean cond) { |
| 296 | if (!cond) { |
| 297 | throw new AssertionError(); |
| 298 | } |
| 299 | } |
| 300 | |
| 301 | @TargetApi(ApiHelper.VERSION_CODES.ICE_CREAM_SANDWICH) |
| 302 | private static void throwIfCameraDisabled(Activity activity) throws CameraDisabledException { |
| 303 | // Check if device policy has disabled the camera. |
| 304 | if (ApiHelper.HAS_GET_CAMERA_DISABLED) { |
| 305 | DevicePolicyManager dpm = (DevicePolicyManager) activity.getSystemService( |
| 306 | Context.DEVICE_POLICY_SERVICE); |
| 307 | if (dpm.getCameraDisabled(null)) { |
| 308 | throw new CameraDisabledException(); |
| 309 | } |
| 310 | } |
| 311 | } |
| 312 | |
| 313 | public static CameraManager.CameraProxy openCamera(Activity activity, int cameraId) |
| 314 | throws CameraHardwareException, CameraDisabledException { |
| 315 | throwIfCameraDisabled(activity); |
| 316 | |
| 317 | try { |
| 318 | return CameraHolder.instance().open(cameraId); |
| 319 | } catch (CameraHardwareException e) { |
| 320 | // In eng build, we throw the exception so that test tool |
| 321 | // can detect it and report it |
| 322 | if ("eng".equals(Build.TYPE)) { |
| 323 | throw new RuntimeException("openCamera failed", e); |
| 324 | } else { |
| 325 | throw e; |
| 326 | } |
| 327 | } |
| 328 | } |
| 329 | |
| 330 | public static void showErrorAndFinish(final Activity activity, int msgId) { |
| 331 | DialogInterface.OnClickListener buttonListener = |
| 332 | new DialogInterface.OnClickListener() { |
| 333 | @Override |
| 334 | public void onClick(DialogInterface dialog, int which) { |
| 335 | activity.finish(); |
| 336 | } |
| 337 | }; |
| 338 | TypedValue out = new TypedValue(); |
| 339 | activity.getTheme().resolveAttribute(android.R.attr.alertDialogIcon, out, true); |
| 340 | new AlertDialog.Builder(activity) |
| 341 | .setCancelable(false) |
| 342 | .setTitle(R.string.camera_error_title) |
| 343 | .setMessage(msgId) |
| 344 | .setNeutralButton(R.string.dialog_ok, buttonListener) |
| 345 | .setIcon(out.resourceId) |
| 346 | .show(); |
| 347 | } |
| 348 | |
| 349 | public static <T> T checkNotNull(T object) { |
| 350 | if (object == null) throw new NullPointerException(); |
| 351 | return object; |
| 352 | } |
| 353 | |
| 354 | public static boolean equals(Object a, Object b) { |
| 355 | return (a == b) || (a == null ? false : a.equals(b)); |
| 356 | } |
| 357 | |
| 358 | public static int nextPowerOf2(int n) { |
| 359 | n -= 1; |
| 360 | n |= n >>> 16; |
| 361 | n |= n >>> 8; |
| 362 | n |= n >>> 4; |
| 363 | n |= n >>> 2; |
| 364 | n |= n >>> 1; |
| 365 | return n + 1; |
| 366 | } |
| 367 | |
| 368 | public static float distance(float x, float y, float sx, float sy) { |
| 369 | float dx = x - sx; |
| 370 | float dy = y - sy; |
| 371 | return FloatMath.sqrt(dx * dx + dy * dy); |
| 372 | } |
| 373 | |
| 374 | public static int clamp(int x, int min, int max) { |
| 375 | if (x > max) return max; |
| 376 | if (x < min) return min; |
| 377 | return x; |
| 378 | } |
| 379 | |
| 380 | public static int getDisplayRotation(Activity activity) { |
| 381 | int rotation = activity.getWindowManager().getDefaultDisplay() |
| 382 | .getRotation(); |
| 383 | switch (rotation) { |
| 384 | case Surface.ROTATION_0: return 0; |
| 385 | case Surface.ROTATION_90: return 90; |
| 386 | case Surface.ROTATION_180: return 180; |
| 387 | case Surface.ROTATION_270: return 270; |
| 388 | } |
| 389 | return 0; |
| 390 | } |
| 391 | |
| 392 | public static int getDisplayOrientation(int degrees, int cameraId) { |
| 393 | // See android.hardware.Camera.setDisplayOrientation for |
| 394 | // documentation. |
| 395 | Camera.CameraInfo info = new Camera.CameraInfo(); |
| 396 | Camera.getCameraInfo(cameraId, info); |
| 397 | int result; |
| 398 | if (info.facing == Camera.CameraInfo.CAMERA_FACING_FRONT) { |
| 399 | result = (info.orientation + degrees) % 360; |
| 400 | result = (360 - result) % 360; // compensate the mirror |
| 401 | } else { // back-facing |
| 402 | result = (info.orientation - degrees + 360) % 360; |
| 403 | } |
| 404 | return result; |
| 405 | } |
| 406 | |
| 407 | public static int getCameraOrientation(int cameraId) { |
| 408 | Camera.CameraInfo info = new Camera.CameraInfo(); |
| 409 | Camera.getCameraInfo(cameraId, info); |
| 410 | return info.orientation; |
| 411 | } |
| 412 | |
| 413 | public static int roundOrientation(int orientation, int orientationHistory) { |
| 414 | boolean changeOrientation = false; |
| 415 | if (orientationHistory == OrientationEventListener.ORIENTATION_UNKNOWN) { |
| 416 | changeOrientation = true; |
| 417 | } else { |
| 418 | int dist = Math.abs(orientation - orientationHistory); |
| 419 | dist = Math.min( dist, 360 - dist ); |
| 420 | changeOrientation = ( dist >= 45 + ORIENTATION_HYSTERESIS ); |
| 421 | } |
| 422 | if (changeOrientation) { |
| 423 | return ((orientation + 45) / 90 * 90) % 360; |
| 424 | } |
| 425 | return orientationHistory; |
| 426 | } |
| 427 | |
| 428 | @SuppressWarnings("deprecation") |
| 429 | @TargetApi(Build.VERSION_CODES.HONEYCOMB_MR2) |
| 430 | private static Point getDefaultDisplaySize(Activity activity, Point size) { |
| 431 | Display d = activity.getWindowManager().getDefaultDisplay(); |
| 432 | if (Build.VERSION.SDK_INT >= ApiHelper.VERSION_CODES.HONEYCOMB_MR2) { |
| 433 | d.getSize(size); |
| 434 | } else { |
| 435 | size.set(d.getWidth(), d.getHeight()); |
| 436 | } |
| 437 | return size; |
| 438 | } |
| 439 | |
| 440 | public static Size getOptimalPreviewSize(Activity currentActivity, |
| 441 | List<Size> sizes, double targetRatio) { |
| 442 | // Use a very small tolerance because we want an exact match. |
| 443 | final double ASPECT_TOLERANCE = 0.001; |
| 444 | if (sizes == null) return null; |
| 445 | |
| 446 | Size optimalSize = null; |
| 447 | double minDiff = Double.MAX_VALUE; |
| 448 | |
| 449 | // Because of bugs of overlay and layout, we sometimes will try to |
| 450 | // layout the viewfinder in the portrait orientation and thus get the |
| 451 | // wrong size of preview surface. When we change the preview size, the |
| 452 | // new overlay will be created before the old one closed, which causes |
| 453 | // an exception. For now, just get the screen size. |
| 454 | Point point = getDefaultDisplaySize(currentActivity, new Point()); |
| 455 | int targetHeight = Math.min(point.x, point.y); |
| 456 | // Try to find an size match aspect ratio and size |
| 457 | for (Size size : sizes) { |
| 458 | double ratio = (double) size.width / size.height; |
| 459 | if (Math.abs(ratio - targetRatio) > ASPECT_TOLERANCE) continue; |
| 460 | if (Math.abs(size.height - targetHeight) < minDiff) { |
| 461 | optimalSize = size; |
| 462 | minDiff = Math.abs(size.height - targetHeight); |
| 463 | } |
| 464 | } |
| 465 | // Cannot find the one match the aspect ratio. This should not happen. |
| 466 | // Ignore the requirement. |
| 467 | if (optimalSize == null) { |
| 468 | Log.w(TAG, "No preview size match the aspect ratio"); |
| 469 | minDiff = Double.MAX_VALUE; |
| 470 | for (Size size : sizes) { |
| 471 | if (Math.abs(size.height - targetHeight) < minDiff) { |
| 472 | optimalSize = size; |
| 473 | minDiff = Math.abs(size.height - targetHeight); |
| 474 | } |
| 475 | } |
| 476 | } |
| 477 | return optimalSize; |
| 478 | } |
| 479 | |
| 480 | // Returns the largest picture size which matches the given aspect ratio. |
| 481 | public static Size getOptimalVideoSnapshotPictureSize( |
| 482 | List<Size> sizes, double targetRatio) { |
| 483 | // Use a very small tolerance because we want an exact match. |
| 484 | final double ASPECT_TOLERANCE = 0.001; |
| 485 | if (sizes == null) return null; |
| 486 | |
| 487 | Size optimalSize = null; |
| 488 | |
| 489 | // Try to find a size matches aspect ratio and has the largest width |
| 490 | for (Size size : sizes) { |
| 491 | double ratio = (double) size.width / size.height; |
| 492 | if (Math.abs(ratio - targetRatio) > ASPECT_TOLERANCE) continue; |
| 493 | if (optimalSize == null || size.width > optimalSize.width) { |
| 494 | optimalSize = size; |
| 495 | } |
| 496 | } |
| 497 | |
| 498 | // Cannot find one that matches the aspect ratio. This should not happen. |
| 499 | // Ignore the requirement. |
| 500 | if (optimalSize == null) { |
| 501 | Log.w(TAG, "No picture size match the aspect ratio"); |
| 502 | for (Size size : sizes) { |
| 503 | if (optimalSize == null || size.width > optimalSize.width) { |
| 504 | optimalSize = size; |
| 505 | } |
| 506 | } |
| 507 | } |
| 508 | return optimalSize; |
| 509 | } |
| 510 | |
| 511 | public static void dumpParameters(Parameters parameters) { |
| 512 | String flattened = parameters.flatten(); |
| 513 | StringTokenizer tokenizer = new StringTokenizer(flattened, ";"); |
| 514 | Log.d(TAG, "Dump all camera parameters:"); |
| 515 | while (tokenizer.hasMoreElements()) { |
| 516 | Log.d(TAG, tokenizer.nextToken()); |
| 517 | } |
| 518 | } |
| 519 | |
| 520 | /** |
| 521 | * Returns whether the device is voice-capable (meaning, it can do MMS). |
| 522 | */ |
| 523 | public static boolean isMmsCapable(Context context) { |
| 524 | TelephonyManager telephonyManager = (TelephonyManager) |
| 525 | context.getSystemService(Context.TELEPHONY_SERVICE); |
| 526 | if (telephonyManager == null) { |
| 527 | return false; |
| 528 | } |
| 529 | |
| 530 | try { |
| 531 | Class<?> partypes[] = new Class[0]; |
| 532 | Method sIsVoiceCapable = TelephonyManager.class.getMethod( |
| 533 | "isVoiceCapable", partypes); |
| 534 | |
| 535 | Object arglist[] = new Object[0]; |
| 536 | Object retobj = sIsVoiceCapable.invoke(telephonyManager, arglist); |
| 537 | return (Boolean) retobj; |
| 538 | } catch (java.lang.reflect.InvocationTargetException ite) { |
| 539 | // Failure, must be another device. |
| 540 | // Assume that it is voice capable. |
| 541 | } catch (IllegalAccessException iae) { |
| 542 | // Failure, must be an other device. |
| 543 | // Assume that it is voice capable. |
| 544 | } catch (NoSuchMethodException nsme) { |
| 545 | } |
| 546 | return true; |
| 547 | } |
| 548 | |
| 549 | // This is for test only. Allow the camera to launch the specific camera. |
| 550 | public static int getCameraFacingIntentExtras(Activity currentActivity) { |
| 551 | int cameraId = -1; |
| 552 | |
| 553 | int intentCameraId = |
| 554 | currentActivity.getIntent().getIntExtra(Util.EXTRAS_CAMERA_FACING, -1); |
| 555 | |
| 556 | if (isFrontCameraIntent(intentCameraId)) { |
| 557 | // Check if the front camera exist |
| 558 | int frontCameraId = CameraHolder.instance().getFrontCameraId(); |
| 559 | if (frontCameraId != -1) { |
| 560 | cameraId = frontCameraId; |
| 561 | } |
| 562 | } else if (isBackCameraIntent(intentCameraId)) { |
| 563 | // Check if the back camera exist |
| 564 | int backCameraId = CameraHolder.instance().getBackCameraId(); |
| 565 | if (backCameraId != -1) { |
| 566 | cameraId = backCameraId; |
| 567 | } |
| 568 | } |
| 569 | return cameraId; |
| 570 | } |
| 571 | |
| 572 | private static boolean isFrontCameraIntent(int intentCameraId) { |
| 573 | return (intentCameraId == android.hardware.Camera.CameraInfo.CAMERA_FACING_FRONT); |
| 574 | } |
| 575 | |
| 576 | private static boolean isBackCameraIntent(int intentCameraId) { |
| 577 | return (intentCameraId == android.hardware.Camera.CameraInfo.CAMERA_FACING_BACK); |
| 578 | } |
| 579 | |
| 580 | private static int sLocation[] = new int[2]; |
| 581 | |
| 582 | // This method is not thread-safe. |
| 583 | public static boolean pointInView(float x, float y, View v) { |
| 584 | v.getLocationInWindow(sLocation); |
| 585 | return x >= sLocation[0] && x < (sLocation[0] + v.getWidth()) |
| 586 | && y >= sLocation[1] && y < (sLocation[1] + v.getHeight()); |
| 587 | } |
| 588 | |
| 589 | public static int[] getRelativeLocation(View reference, View view) { |
| 590 | reference.getLocationInWindow(sLocation); |
| 591 | int referenceX = sLocation[0]; |
| 592 | int referenceY = sLocation[1]; |
| 593 | view.getLocationInWindow(sLocation); |
| 594 | sLocation[0] -= referenceX; |
| 595 | sLocation[1] -= referenceY; |
| 596 | return sLocation; |
| 597 | } |
| 598 | |
| 599 | public static boolean isUriValid(Uri uri, ContentResolver resolver) { |
| 600 | if (uri == null) return false; |
| 601 | |
| 602 | try { |
| 603 | ParcelFileDescriptor pfd = resolver.openFileDescriptor(uri, "r"); |
| 604 | if (pfd == null) { |
| 605 | Log.e(TAG, "Fail to open URI. URI=" + uri); |
| 606 | return false; |
| 607 | } |
| 608 | pfd.close(); |
| 609 | } catch (IOException ex) { |
| 610 | return false; |
| 611 | } |
| 612 | return true; |
| 613 | } |
| 614 | |
| 615 | public static void viewUri(Uri uri, Context context) { |
| 616 | if (!isUriValid(uri, context.getContentResolver())) { |
| 617 | Log.e(TAG, "Uri invalid. uri=" + uri); |
| 618 | return; |
| 619 | } |
| 620 | |
| 621 | try { |
| 622 | context.startActivity(new Intent(Util.REVIEW_ACTION, uri)); |
| 623 | } catch (ActivityNotFoundException ex) { |
| 624 | try { |
| 625 | context.startActivity(new Intent(Intent.ACTION_VIEW, uri)); |
| 626 | } catch (ActivityNotFoundException e) { |
| 627 | Log.e(TAG, "review image fail. uri=" + uri, e); |
| 628 | } |
| 629 | } |
| 630 | } |
| 631 | |
| 632 | public static void dumpRect(RectF rect, String msg) { |
| 633 | Log.v(TAG, msg + "=(" + rect.left + "," + rect.top |
| 634 | + "," + rect.right + "," + rect.bottom + ")"); |
| 635 | } |
| 636 | |
| 637 | public static void rectFToRect(RectF rectF, Rect rect) { |
| 638 | rect.left = Math.round(rectF.left); |
| 639 | rect.top = Math.round(rectF.top); |
| 640 | rect.right = Math.round(rectF.right); |
| 641 | rect.bottom = Math.round(rectF.bottom); |
| 642 | } |
| 643 | |
| 644 | public static void prepareMatrix(Matrix matrix, boolean mirror, int displayOrientation, |
| 645 | int viewWidth, int viewHeight) { |
| 646 | // Need mirror for front camera. |
| 647 | matrix.setScale(mirror ? -1 : 1, 1); |
| 648 | // This is the value for android.hardware.Camera.setDisplayOrientation. |
| 649 | matrix.postRotate(displayOrientation); |
| 650 | // Camera driver coordinates range from (-1000, -1000) to (1000, 1000). |
| 651 | // UI coordinates range from (0, 0) to (width, height). |
| 652 | matrix.postScale(viewWidth / 2000f, viewHeight / 2000f); |
| 653 | matrix.postTranslate(viewWidth / 2f, viewHeight / 2f); |
| 654 | } |
| 655 | |
| 656 | public static String createJpegName(long dateTaken) { |
| 657 | synchronized (sImageFileNamer) { |
| 658 | return sImageFileNamer.generateName(dateTaken); |
| 659 | } |
| 660 | } |
| 661 | |
| 662 | public static void broadcastNewPicture(Context context, Uri uri) { |
| 663 | context.sendBroadcast(new Intent(ACTION_NEW_PICTURE, uri)); |
| 664 | // Keep compatibility |
| 665 | context.sendBroadcast(new Intent("com.android.camera.NEW_PICTURE", uri)); |
| 666 | } |
| 667 | |
| 668 | public static void fadeIn(View view, float startAlpha, float endAlpha, long duration) { |
| 669 | if (view.getVisibility() == View.VISIBLE) return; |
| 670 | |
| 671 | view.setVisibility(View.VISIBLE); |
| 672 | Animation animation = new AlphaAnimation(startAlpha, endAlpha); |
| 673 | animation.setDuration(duration); |
| 674 | view.startAnimation(animation); |
| 675 | } |
| 676 | |
| 677 | public static void fadeIn(View view) { |
| 678 | fadeIn(view, 0F, 1F, 400); |
| 679 | |
| 680 | // We disabled the button in fadeOut(), so enable it here. |
| 681 | view.setEnabled(true); |
| 682 | } |
| 683 | |
| 684 | public static void fadeOut(View view) { |
| 685 | if (view.getVisibility() != View.VISIBLE) return; |
| 686 | |
| 687 | // Since the button is still clickable before fade-out animation |
| 688 | // ends, we disable the button first to block click. |
| 689 | view.setEnabled(false); |
| 690 | Animation animation = new AlphaAnimation(1F, 0F); |
| 691 | animation.setDuration(400); |
| 692 | view.startAnimation(animation); |
| 693 | view.setVisibility(View.GONE); |
| 694 | } |
| 695 | |
| 696 | public static int getJpegRotation(int cameraId, int orientation) { |
| 697 | // See android.hardware.Camera.Parameters.setRotation for |
| 698 | // documentation. |
| 699 | int rotation = 0; |
| 700 | if (orientation != OrientationEventListener.ORIENTATION_UNKNOWN) { |
| 701 | CameraInfo info = CameraHolder.instance().getCameraInfo()[cameraId]; |
| 702 | if (info.facing == CameraInfo.CAMERA_FACING_FRONT) { |
| 703 | rotation = (info.orientation - orientation + 360) % 360; |
| 704 | } else { // back-facing camera |
| 705 | rotation = (info.orientation + orientation) % 360; |
| 706 | } |
| 707 | } |
| 708 | return rotation; |
| 709 | } |
| 710 | |
| 711 | public static void setGpsParameters(Parameters parameters, Location loc) { |
| 712 | // Clear previous GPS location from the parameters. |
| 713 | parameters.removeGpsData(); |
| 714 | |
| 715 | // We always encode GpsTimeStamp |
| 716 | parameters.setGpsTimestamp(System.currentTimeMillis() / 1000); |
| 717 | |
| 718 | // Set GPS location. |
| 719 | if (loc != null) { |
| 720 | double lat = loc.getLatitude(); |
| 721 | double lon = loc.getLongitude(); |
| 722 | boolean hasLatLon = (lat != 0.0d) || (lon != 0.0d); |
| 723 | |
| 724 | if (hasLatLon) { |
| 725 | Log.d(TAG, "Set gps location"); |
| 726 | parameters.setGpsLatitude(lat); |
| 727 | parameters.setGpsLongitude(lon); |
| 728 | parameters.setGpsProcessingMethod(loc.getProvider().toUpperCase()); |
| 729 | if (loc.hasAltitude()) { |
| 730 | parameters.setGpsAltitude(loc.getAltitude()); |
| 731 | } else { |
| 732 | // for NETWORK_PROVIDER location provider, we may have |
| 733 | // no altitude information, but the driver needs it, so |
| 734 | // we fake one. |
| 735 | parameters.setGpsAltitude(0); |
| 736 | } |
| 737 | if (loc.getTime() != 0) { |
| 738 | // Location.getTime() is UTC in milliseconds. |
| 739 | // gps-timestamp is UTC in seconds. |
| 740 | long utcTimeSeconds = loc.getTime() / 1000; |
| 741 | parameters.setGpsTimestamp(utcTimeSeconds); |
| 742 | } |
| 743 | } else { |
| 744 | loc = null; |
| 745 | } |
| 746 | } |
| 747 | } |
| 748 | |
| 749 | private static class ImageFileNamer { |
| 750 | private SimpleDateFormat mFormat; |
| 751 | |
| 752 | // The date (in milliseconds) used to generate the last name. |
| 753 | private long mLastDate; |
| 754 | |
| 755 | // Number of names generated for the same second. |
| 756 | private int mSameSecondCount; |
| 757 | |
| 758 | public ImageFileNamer(String format) { |
| 759 | mFormat = new SimpleDateFormat(format); |
| 760 | } |
| 761 | |
| 762 | public String generateName(long dateTaken) { |
| 763 | Date date = new Date(dateTaken); |
| 764 | String result = mFormat.format(date); |
| 765 | |
| 766 | // If the last name was generated for the same second, |
| 767 | // we append _1, _2, etc to the name. |
| 768 | if (dateTaken / 1000 == mLastDate / 1000) { |
| 769 | mSameSecondCount++; |
| 770 | result += "_" + mSameSecondCount; |
| 771 | } else { |
| 772 | mLastDate = dateTaken; |
| 773 | mSameSecondCount = 0; |
| 774 | } |
| 775 | |
| 776 | return result; |
| 777 | } |
| 778 | } |
Angus Kong | b40738a | 2013-06-03 14:55:34 -0700 | [diff] [blame^] | 779 | |
| 780 | public static void playVideo(Context context, Uri uri, String title) { |
| 781 | try { |
| 782 | Intent intent = new Intent(Intent.ACTION_VIEW) |
| 783 | .setDataAndType(uri, "video/*") |
| 784 | .putExtra(Intent.EXTRA_TITLE, title) |
| 785 | .putExtra(MovieActivity.KEY_TREAT_UP_AS_BACK, true); |
| 786 | context.startActivity(intent); |
| 787 | } catch (ActivityNotFoundException e) { |
| 788 | Toast.makeText(context, context.getString(R.string.video_err), |
| 789 | Toast.LENGTH_SHORT).show(); |
| 790 | } |
| 791 | } |
Michael Kolb | 8872c23 | 2013-01-29 10:33:22 -0800 | [diff] [blame] | 792 | } |