| /* |
| * Copyright (C) 2019 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| package com.android.wallpaper.picker; |
| |
| import static android.view.View.IMPORTANT_FOR_ACCESSIBILITY_NO_HIDE_DESCENDANTS; |
| import static android.view.View.IMPORTANT_FOR_ACCESSIBILITY_YES; |
| import static android.view.View.MeasureSpec.EXACTLY; |
| import static android.view.View.MeasureSpec.makeMeasureSpec; |
| |
| import static com.android.wallpaper.widget.BottomActionBar.BottomAction.APPLY; |
| import static com.android.wallpaper.widget.BottomActionBar.BottomAction.EDIT; |
| import static com.android.wallpaper.widget.BottomActionBar.BottomAction.INFORMATION; |
| |
| import android.animation.Animator; |
| import android.animation.AnimatorListenerAdapter; |
| import android.app.Activity; |
| import android.app.WallpaperColors; |
| import android.content.Context; |
| import android.content.res.Resources; |
| import android.graphics.Bitmap; |
| import android.graphics.BitmapFactory; |
| import android.graphics.Color; |
| import android.graphics.ColorSpace; |
| import android.graphics.Point; |
| import android.graphics.PointF; |
| import android.graphics.Rect; |
| import android.os.Bundle; |
| import android.os.Handler; |
| import android.util.Log; |
| import android.view.LayoutInflater; |
| import android.view.Surface; |
| import android.view.SurfaceControlViewHost; |
| import android.view.SurfaceHolder; |
| import android.view.SurfaceView; |
| import android.view.View; |
| import android.view.ViewGroup; |
| import android.view.ViewGroup.LayoutParams; |
| import android.widget.ImageView; |
| |
| import androidx.annotation.NonNull; |
| import androidx.annotation.Nullable; |
| import androidx.cardview.widget.CardView; |
| import androidx.constraintlayout.widget.ConstraintLayout; |
| import androidx.constraintlayout.widget.ConstraintSet; |
| import androidx.fragment.app.FragmentActivity; |
| |
| import com.android.wallpaper.R; |
| import com.android.wallpaper.asset.Asset; |
| import com.android.wallpaper.asset.CurrentWallpaperAssetVN; |
| import com.android.wallpaper.model.SetWallpaperViewModel; |
| import com.android.wallpaper.module.BitmapCropper; |
| import com.android.wallpaper.module.InjectorProvider; |
| import com.android.wallpaper.module.WallpaperPersister.Destination; |
| import com.android.wallpaper.util.FullScreenAnimation; |
| import com.android.wallpaper.util.ResourceUtils; |
| import com.android.wallpaper.util.ScreenSizeCalculator; |
| import com.android.wallpaper.util.SizeCalculator; |
| import com.android.wallpaper.util.WallpaperCropUtils; |
| import com.android.wallpaper.widget.BottomActionBar; |
| import com.android.wallpaper.widget.BottomActionBar.AccessibilityCallback; |
| import com.android.wallpaper.widget.LockScreenPreviewer; |
| |
| import com.bumptech.glide.Glide; |
| import com.bumptech.glide.MemoryCategory; |
| import com.davemorrissey.labs.subscaleview.ImageSource; |
| import com.davemorrissey.labs.subscaleview.SubsamplingScaleImageView; |
| |
| import java.io.ByteArrayOutputStream; |
| import java.util.Locale; |
| import java.util.concurrent.ExecutionException; |
| import java.util.concurrent.Executor; |
| import java.util.concurrent.Executors; |
| import java.util.concurrent.Future; |
| import java.util.concurrent.atomic.AtomicInteger; |
| |
| /** |
| * Fragment which displays the UI for previewing an individual static wallpaper and its attribution |
| * information. |
| */ |
| public class ImagePreviewFragment extends PreviewFragment { |
| |
| private static final String TAG = "ImagePreviewFragment"; |
| private static final float DEFAULT_WALLPAPER_MAX_ZOOM = 8f; |
| private static final Executor sExecutor = Executors.newCachedThreadPool(); |
| |
| private final WallpaperSurfaceCallback mWallpaperSurfaceCallback = |
| new WallpaperSurfaceCallback(); |
| |
| private final AtomicInteger mImageScaleChangeCounter = new AtomicInteger(0); |
| private final AtomicInteger mRecalculateColorCounter = new AtomicInteger(0); |
| |
| private SubsamplingScaleImageView mFullResImageView; |
| private Asset mWallpaperAsset; |
| private Point mScreenSize; |
| private Point mRawWallpaperSize; // Native size of wallpaper image. |
| private ImageView mLowResImageView; |
| private TouchForwardingLayout mTouchForwardingLayout; |
| private ConstraintLayout mContainer; |
| private SurfaceView mWallpaperSurface; |
| private boolean mIsSurfaceCreated = false; |
| |
| protected SurfaceView mWorkspaceSurface; |
| protected WorkspaceSurfaceHolderCallback mWorkspaceSurfaceCallback; |
| protected ViewGroup mLockPreviewContainer; |
| protected LockScreenPreviewer mLockScreenPreviewer; |
| private Future<Integer> mPlaceholderColorFuture; |
| |
| @Override |
| public void onCreate(Bundle savedInstanceState) { |
| super.onCreate(savedInstanceState); |
| mWallpaperAsset = mWallpaper.getAsset(requireContext().getApplicationContext()); |
| mPlaceholderColorFuture = mWallpaper.computePlaceholderColor(requireContext()); |
| } |
| |
| @Override |
| protected int getLayoutResId() { |
| return R.layout.fragment_image_preview; |
| } |
| |
| @Override |
| public View onCreateView(LayoutInflater inflater, ViewGroup container, |
| Bundle savedInstanceState) { |
| View view = super.onCreateView(inflater, container, savedInstanceState); |
| |
| Activity activity = requireActivity(); |
| mScreenSize = ScreenSizeCalculator.getInstance().getScreenSize( |
| activity.getWindowManager().getDefaultDisplay()); |
| |
| mContainer = view.findViewById(R.id.container); |
| mTouchForwardingLayout = mContainer.findViewById(R.id.touch_forwarding_layout); |
| mTouchForwardingLayout.setForwardingEnabled(true); |
| |
| // Set aspect ratio on the preview card dynamically. |
| ConstraintSet set = new ConstraintSet(); |
| set.clone(mContainer); |
| String ratio = String.format(Locale.US, "%d:%d", mScreenSize.x, mScreenSize.y); |
| set.setDimensionRatio(mTouchForwardingLayout.getId(), ratio); |
| set.applyTo(mContainer); |
| |
| mWorkspaceSurface = mContainer.findViewById(R.id.workspace_surface); |
| mWorkspaceSurfaceCallback = createWorkspaceSurfaceCallback(mWorkspaceSurface); |
| mWallpaperSurface = mContainer.findViewById(R.id.wallpaper_surface); |
| mLockPreviewContainer = mContainer.findViewById(R.id.lock_screen_preview_container); |
| int placeHolderColor = ResourceUtils.getColorAttr(getContext(), |
| android.R.attr.colorBackground); |
| mWorkspaceSurface.setResizeBackgroundColor(placeHolderColor); |
| mLockScreenPreviewer = new LockScreenPreviewer(getLifecycle(), getContext(), |
| mLockPreviewContainer); |
| mLockScreenPreviewer.setDateViewVisibility(!mFullScreenAnimation.isFullScreen()); |
| mFullScreenAnimation.setFullScreenStatusListener( |
| isFullScreen -> mLockScreenPreviewer.setDateViewVisibility(!isFullScreen)); |
| setUpTabs(view.findViewById(R.id.separated_tabs)); |
| |
| view.measure(makeMeasureSpec(mScreenSize.x, EXACTLY), |
| makeMeasureSpec(mScreenSize.y, EXACTLY)); |
| ((CardView) mWorkspaceSurface.getParent()) |
| .setRadius(SizeCalculator.getPreviewCornerRadius( |
| activity, mContainer.getMeasuredWidth())); |
| |
| renderImageWallpaper(); |
| renderWorkspaceSurface(); |
| |
| // Trim some memory from Glide to make room for the full-size image in this fragment. |
| Glide.get(activity).setMemoryCategory(MemoryCategory.LOW); |
| |
| return view; |
| } |
| |
| @Override |
| public void onViewCreated(@NonNull View view, @Nullable Bundle savedInstanceState) { |
| super.onViewCreated(view, savedInstanceState); |
| } |
| |
| protected void onWallpaperColorsChanged(@Nullable WallpaperColors colors) { |
| // Make it enabled since the buttons are disabled while wallpaper is moving. |
| mBottomActionBar.enableActionButtonsWithBottomSheet(true); |
| |
| mLockScreenPreviewer.setColor(colors); |
| |
| mFullScreenAnimation.setFullScreenTextColor( |
| colors == null || (colors.getColorHints() |
| & WallpaperColors.HINT_SUPPORTS_DARK_TEXT) == 0 |
| ? FullScreenAnimation.FullScreenTextColor.LIGHT |
| : FullScreenAnimation.FullScreenTextColor.DARK); |
| } |
| |
| @Override |
| protected boolean isLoaded() { |
| return mFullResImageView != null && mFullResImageView.hasImage(); |
| } |
| |
| @Override |
| public void onClickOk() { |
| FragmentActivity activity = getActivity(); |
| if (activity != null) { |
| activity.finish(); |
| } |
| } |
| |
| @Override |
| public void onDestroy() { |
| super.onDestroy(); |
| |
| if (mFullResImageView != null) { |
| mFullResImageView.recycle(); |
| } |
| |
| if (mLockScreenPreviewer != null) { |
| mLockScreenPreviewer.release(); |
| } |
| |
| mWallpaperSurfaceCallback.cleanUp(); |
| mWorkspaceSurfaceCallback.cleanUp(); |
| } |
| |
| @Override |
| protected void onBottomActionBarReady(BottomActionBar bottomActionBar) { |
| super.onBottomActionBarReady(bottomActionBar); |
| mBottomActionBar.bindBottomSheetContentWithAction( |
| new WallpaperInfoContent(getContext()), INFORMATION); |
| mBottomActionBar.showActionsOnly(INFORMATION, EDIT, APPLY); |
| |
| mBottomActionBar.setActionClickListener(APPLY, this::onSetWallpaperClicked); |
| |
| View separatedTabsContainer = getView().findViewById(R.id.separated_tabs_container); |
| // Update target view's accessibility param since it will be blocked by the bottom sheet |
| // when expanded. |
| mBottomActionBar.setAccessibilityCallback(new AccessibilityCallback() { |
| @Override |
| public void onBottomSheetCollapsed() { |
| mContainer.setImportantForAccessibility(IMPORTANT_FOR_ACCESSIBILITY_YES); |
| separatedTabsContainer.setImportantForAccessibility( |
| IMPORTANT_FOR_ACCESSIBILITY_YES); |
| } |
| |
| @Override |
| public void onBottomSheetExpanded() { |
| mContainer.setImportantForAccessibility( |
| IMPORTANT_FOR_ACCESSIBILITY_NO_HIDE_DESCENDANTS); |
| separatedTabsContainer.setImportantForAccessibility( |
| IMPORTANT_FOR_ACCESSIBILITY_NO_HIDE_DESCENDANTS); |
| |
| } |
| }); |
| |
| mBottomActionBar.show(); |
| // To avoid applying the wallpaper when the wallpaper's not parsed. |
| mBottomActionBar.disableActions(); |
| // If the wallpaper is parsed, enable the bottom action bar. |
| if (mRawWallpaperSize != null) { |
| mBottomActionBar.enableActions(); |
| } |
| } |
| |
| /** |
| * Initializes MosaicView by initializing tiling, setting a fallback page bitmap, and |
| * initializing a zoom-scroll observer and click listener. |
| */ |
| private void initFullResView() { |
| if (mRawWallpaperSize == null || mFullResImageView == null) { |
| return; |
| } |
| |
| // Minimum scale will only be respected under this scale type. |
| mFullResImageView.setMinimumScaleType(SubsamplingScaleImageView.SCALE_TYPE_CUSTOM); |
| // When we set a minimum scale bigger than the scale with which the full image is shown, |
| // disallow user to pan outside the view we show the wallpaper in. |
| mFullResImageView.setPanLimit(SubsamplingScaleImageView.PAN_LIMIT_INSIDE); |
| |
| // Then set a fallback "page bitmap" to cover the whole MosaicView, which is an actual |
| // (lower res) version of the image to be displayed. |
| Point targetPageBitmapSize = new Point(mRawWallpaperSize); |
| mWallpaperAsset.decodeBitmap(targetPageBitmapSize.x, targetPageBitmapSize.y, |
| pageBitmap -> { |
| // Check that the activity is still around since the decoding task started. |
| if (getActivity() == null) { |
| return; |
| } |
| |
| // The page bitmap may be null if there was a decoding error, so show an |
| // error dialog. |
| if (pageBitmap == null) { |
| showLoadWallpaperErrorDialog(); |
| return; |
| } |
| // Some of these may be null depending on if the Fragment is paused, stopped, |
| // or destroyed. |
| mWallpaperSurface.setBackgroundColor(Color.TRANSPARENT); |
| if (mFullResImageView != null) { |
| // Set page bitmap. |
| mFullResImageView.setImage(ImageSource.bitmap(pageBitmap)); |
| |
| setDefaultWallpaperZoomAndScroll( |
| mWallpaperAsset instanceof CurrentWallpaperAssetVN); |
| crossFadeInMosaicView(); |
| mFullResImageView.setOnStateChangedListener( |
| new SubsamplingScaleImageView.DefaultOnStateChangedListener() { |
| @Override |
| public void onCenterChanged(PointF newCenter, int origin) { |
| super.onCenterChanged(newCenter, origin); |
| // Disallow bottom sheet to popup when wallpaper is moving |
| // by user dragging. |
| mBottomActionBar.enableActionButtonsWithBottomSheet(false); |
| mImageScaleChangeCounter.incrementAndGet(); |
| mFullResImageView.postDelayed(() -> { |
| if (mImageScaleChangeCounter.decrementAndGet() == 0) { |
| recalculateColors(); |
| } |
| }, /* delayMillis= */ 100); |
| } |
| }); |
| mFullResImageView.post(this::recalculateColors); |
| } |
| }); |
| |
| mFullResImageView.setOnTouchListener((v, ev) -> { |
| // Consume the touch event for collapsing bottom sheet while it is expanded or |
| // dragging (not collapsed). |
| if (mBottomActionBar != null && !mBottomActionBar.isBottomSheetCollapsed()) { |
| mBottomActionBar.collapseBottomSheetIfExpanded(); |
| return true; |
| } |
| return false; |
| }); |
| } |
| |
| private void recalculateColors() { |
| Context context = getContext(); |
| if (context == null) { |
| Log.e(TAG, "Got null context, skip recalculating colors"); |
| return; |
| } |
| |
| BitmapCropper bitmapCropper = InjectorProvider.getInjector().getBitmapCropper(); |
| bitmapCropper.cropAndScaleBitmap(mWallpaperAsset, mFullResImageView.getScale(), |
| calculateCropRect(context), /* adjustForRtl= */ false, |
| new BitmapCropper.Callback() { |
| @Override |
| public void onBitmapCropped(Bitmap croppedBitmap) { |
| mRecalculateColorCounter.incrementAndGet(); |
| sExecutor.execute(() -> { |
| boolean shouldRecycle = false; |
| ByteArrayOutputStream tmpOut = new ByteArrayOutputStream(); |
| Bitmap cropped = croppedBitmap; |
| if (cropped.compress(Bitmap.CompressFormat.PNG, 100, tmpOut)) { |
| byte[] outByteArray = tmpOut.toByteArray(); |
| BitmapFactory.Options options = new BitmapFactory.Options(); |
| options.inPreferredColorSpace = |
| ColorSpace.get(ColorSpace.Named.SRGB); |
| cropped = BitmapFactory.decodeByteArray(outByteArray, 0, |
| outByteArray.length); |
| } |
| if (cropped.getConfig() == Bitmap.Config.HARDWARE) { |
| cropped = cropped.copy(Bitmap.Config.ARGB_8888, false); |
| shouldRecycle = true; |
| } |
| WallpaperColors colors = WallpaperColors.fromBitmap(cropped); |
| if (shouldRecycle) { |
| cropped.recycle(); |
| } |
| if (mRecalculateColorCounter.decrementAndGet() == 0) { |
| Handler.getMain().post(() -> onWallpaperColorsChanged(colors)); |
| } |
| }); |
| } |
| |
| @Override |
| public void onError(@Nullable Throwable e) { |
| Log.w(TAG, "Recalculate colors, crop and scale bitmap failed.", e); |
| } |
| }); |
| } |
| |
| /** |
| * Makes the MosaicView visible with an alpha fade-in animation while fading out the loading |
| * indicator. |
| */ |
| private void crossFadeInMosaicView() { |
| long shortAnimationDuration = getResources().getInteger( |
| android.R.integer.config_shortAnimTime); |
| |
| mFullResImageView.setAlpha(0f); |
| mFullResImageView.animate() |
| .alpha(1f) |
| .setInterpolator(ALPHA_OUT) |
| .setDuration(shortAnimationDuration) |
| .setListener(new AnimatorListenerAdapter() { |
| @Override |
| public void onAnimationEnd(Animator animation) { |
| // Clear the thumbnail bitmap reference to save memory since it's no longer |
| // visible. |
| if (mLowResImageView != null) { |
| mLowResImageView.setImageBitmap(null); |
| } |
| } |
| }); |
| } |
| |
| /** |
| * Sets the default wallpaper zoom and scroll position based on a "crop surface" (with extra |
| * width to account for parallax) superimposed on the screen. Shows as much of the wallpaper as |
| * possible on the crop surface and align screen to crop surface such that the default preview |
| * matches what would be seen by the user in the left-most home screen. |
| * |
| * <p>This method is called once in the Fragment lifecycle after the wallpaper asset has loaded |
| * and rendered to the layout. |
| * |
| * @param offsetToStart {@code true} if we want to offset the visible rectangle to the start |
| * side of the raw wallpaper; {@code false} otherwise. |
| */ |
| private void setDefaultWallpaperZoomAndScroll(boolean offsetToStart) { |
| // Determine minimum zoom to fit maximum visible area of wallpaper on crop surface. |
| int cropWidth = mWallpaperSurface.getMeasuredWidth(); |
| int cropHeight = mWallpaperSurface.getMeasuredHeight(); |
| Point crop = new Point(cropWidth, cropHeight); |
| Rect visibleRawWallpaperRect = |
| WallpaperCropUtils.calculateVisibleRect(mRawWallpaperSize, crop); |
| if (offsetToStart) { |
| if (WallpaperCropUtils.isRtl(requireContext())) { |
| visibleRawWallpaperRect.offsetTo(mRawWallpaperSize.x |
| - visibleRawWallpaperRect.width(), visibleRawWallpaperRect.top); |
| } else { |
| visibleRawWallpaperRect.offsetTo(/* newLeft= */ 0, visibleRawWallpaperRect.top); |
| } |
| } |
| |
| final PointF centerPosition = new PointF(visibleRawWallpaperRect.centerX(), |
| visibleRawWallpaperRect.centerY()); |
| |
| Point visibleRawWallpaperSize = new Point(visibleRawWallpaperRect.width(), |
| visibleRawWallpaperRect.height()); |
| |
| final float defaultWallpaperZoom = WallpaperCropUtils.calculateMinZoom( |
| visibleRawWallpaperSize, crop); |
| final float minWallpaperZoom = defaultWallpaperZoom; |
| |
| |
| // Set min wallpaper zoom and max zoom on MosaicView widget. |
| mFullResImageView.setMaxScale(Math.max(DEFAULT_WALLPAPER_MAX_ZOOM, defaultWallpaperZoom)); |
| mFullResImageView.setMinScale(minWallpaperZoom); |
| |
| // Set center to composite positioning between scaled wallpaper and screen. |
| mFullResImageView.setScaleAndCenter(minWallpaperZoom, centerPosition); |
| } |
| |
| private Rect calculateCropRect(Context context) { |
| float wallpaperZoom = mFullResImageView.getScale(); |
| Context appContext = context.getApplicationContext(); |
| |
| Rect visibleFileRect = new Rect(); |
| mFullResImageView.visibleFileRect(visibleFileRect); |
| |
| int cropWidth = mWallpaperSurface.getMeasuredWidth(); |
| int cropHeight = mWallpaperSurface.getMeasuredHeight(); |
| int maxCrop = Math.max(cropWidth, cropHeight); |
| int minCrop = Math.min(cropWidth, cropHeight); |
| Point hostViewSize = new Point(cropWidth, cropHeight); |
| |
| Resources res = appContext.getResources(); |
| Point cropSurfaceSize = WallpaperCropUtils.calculateCropSurfaceSize(res, maxCrop, minCrop); |
| |
| return WallpaperCropUtils.calculateCropRect(appContext, hostViewSize, |
| cropSurfaceSize, mRawWallpaperSize, visibleFileRect, wallpaperZoom); |
| } |
| |
| @Override |
| protected void setCurrentWallpaper(@Destination int destination) { |
| mWallpaperSetter.setCurrentWallpaper(getActivity(), mWallpaper, mWallpaperAsset, |
| destination, mFullResImageView.getScale(), calculateCropRect(getContext()), |
| SetWallpaperViewModel.getCallback(mViewModelProvider)); |
| } |
| |
| private void renderWorkspaceSurface() { |
| mWorkspaceSurface.setZOrderMediaOverlay(true); |
| mWorkspaceSurface.getHolder().addCallback(mWorkspaceSurfaceCallback); |
| } |
| |
| private void renderImageWallpaper() { |
| mWallpaperSurface.getHolder().addCallback(mWallpaperSurfaceCallback); |
| } |
| |
| private class WallpaperSurfaceCallback implements SurfaceHolder.Callback { |
| private Surface mLastSurface; |
| private SurfaceControlViewHost mHost; |
| |
| @Override |
| public void surfaceCreated(SurfaceHolder holder) { |
| if (mLastSurface != holder.getSurface()) { |
| mLastSurface = holder.getSurface(); |
| if (mFullResImageView != null) { |
| mFullResImageView.recycle(); |
| } |
| Context context = getContext(); |
| View wallpaperPreviewContainer = LayoutInflater.from(context).inflate( |
| R.layout.fullscreen_wallpaper_preview, null); |
| mFullResImageView = wallpaperPreviewContainer.findViewById(R.id.full_res_image); |
| mLowResImageView = wallpaperPreviewContainer.findViewById(R.id.low_res_image); |
| mWallpaperAsset.decodeRawDimensions(getActivity(), dimensions -> { |
| // Don't continue loading the wallpaper if the Fragment is detached. |
| if (getActivity() == null) { |
| return; |
| } |
| |
| // Return early and show a dialog if dimensions are null (signaling a decoding |
| // error). |
| if (dimensions == null) { |
| showLoadWallpaperErrorDialog(); |
| return; |
| } |
| |
| // To avoid applying the wallpaper when it's not parsed. Now it's parsed, enable |
| // the bottom action bar to allow applying the wallpaper. |
| if (mBottomActionBar != null) { |
| mBottomActionBar.enableActions(); |
| } |
| |
| mRawWallpaperSize = dimensions; |
| initFullResView(); |
| }); |
| // Scale the mWallpaperSurface based on system zoom's scale so that the wallpaper is |
| // rendered in a larger surface than what preview shows, simulating the behavior of |
| // the actual wallpaper surface. |
| float scale = WallpaperCropUtils.getSystemWallpaperMaximumScale(context); |
| int origWidth = mWallpaperSurface.getWidth(); |
| int width = (int) (origWidth * scale); |
| int origHeight = mWallpaperSurface.getHeight(); |
| int height = (int) (origHeight * scale); |
| int left = (origWidth - width) / 2; |
| int top = (origHeight - height) / 2; |
| |
| if (WallpaperCropUtils.isRtl(context)) { |
| left *= -1; |
| } |
| |
| LayoutParams params = mWallpaperSurface.getLayoutParams(); |
| params.width = width; |
| params.height = height; |
| mWallpaperSurface.setX(left); |
| mWallpaperSurface.setY(top); |
| mWallpaperSurface.setLayoutParams(params); |
| mWallpaperSurface.requestLayout(); |
| |
| // Load a low-res placeholder image if there's a thumbnail available from the asset |
| // that can be shown to the user more quickly than the full-sized image. |
| Activity activity = requireActivity(); |
| // Change to background color if colorValue is Color.TRANSPARENT |
| int placeHolderColor = ResourceUtils.getColorAttr(activity, |
| android.R.attr.colorBackground); |
| if (mPlaceholderColorFuture.isDone()) { |
| try { |
| int colorValue = mWallpaper.computePlaceholderColor(context).get(); |
| if (colorValue != Color.TRANSPARENT) { |
| placeHolderColor = colorValue; |
| } |
| } catch (InterruptedException | ExecutionException e) { |
| // Do nothing |
| } |
| } |
| mWallpaperSurface.setResizeBackgroundColor(placeHolderColor); |
| mWallpaperSurface.setBackgroundColor(placeHolderColor); |
| mLowResImageView.setBackgroundColor(placeHolderColor); |
| |
| mWallpaperAsset.loadLowResDrawable(activity, mLowResImageView, placeHolderColor, |
| mPreviewBitmapTransformation); |
| |
| wallpaperPreviewContainer.measure( |
| makeMeasureSpec(width, EXACTLY), |
| makeMeasureSpec(height, EXACTLY)); |
| wallpaperPreviewContainer.layout(0, 0, width, height); |
| mTouchForwardingLayout.setTargetView(mFullResImageView); |
| |
| cleanUp(); |
| mHost = new SurfaceControlViewHost(context, |
| context.getDisplay(), mWallpaperSurface.getHostToken()); |
| mHost.setView(wallpaperPreviewContainer, wallpaperPreviewContainer.getWidth(), |
| wallpaperPreviewContainer.getHeight()); |
| mWallpaperSurface.setChildSurfacePackage(mHost.getSurfacePackage()); |
| // After surface creating, update workspaceSurface. |
| mIsSurfaceCreated = true; |
| updateScreenPreview(mLastSelectedTabPositionOptional.orElse(0) == 0); |
| } |
| } |
| |
| @Override |
| public void surfaceChanged(SurfaceHolder holder, int format, int width, int height) { } |
| |
| @Override |
| public void surfaceDestroyed(SurfaceHolder holder) { } |
| |
| public void cleanUp() { |
| if (mHost != null) { |
| mHost.release(); |
| mHost = null; |
| } |
| mIsSurfaceCreated = false; |
| } |
| } |
| |
| @Override |
| protected void updateScreenPreview(boolean isHomeSelected) { |
| // Use View.GONE for WorkspaceSurface's visibility before its surface is created. |
| mWorkspaceSurface.setVisibility(isHomeSelected && mIsSurfaceCreated ? View.VISIBLE : |
| View.GONE); |
| |
| mLockPreviewContainer.setVisibility(isHomeSelected && mIsSurfaceCreated ? View.VISIBLE : |
| View.GONE); |
| |
| mFullScreenAnimation.setIsHomeSelected(isHomeSelected); |
| } |
| } |
