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Commit 631bc0c8 authored by Tracy Zhou's avatar Tracy Zhou
Browse files

Fix "Preview for grid goes missing after turning off and back on the screen" 

Test: Turn off the screen and back on, make sure the workspace preview is still there
Fixes: 155454629
Change-Id: Ide29a94eb727cc3084bdd7c6aa79ea34665fd2c1
parent fb7c6d21

src/com/android/customization/picker/grid/GridFragment.java

+39 −32
Original line number Diff line number Diff line
@@ -28,6 +28,7 @@ import android.os.RemoteException; 
import android.util.DisplayMetrics;

import android.util.Log;

import android.view.LayoutInflater;

import android.view.Surface;

import android.view.SurfaceHolder;

import android.view.SurfaceView;

import android.view.View;
@@ -284,39 +285,15 @@ public class GridFragment extends AppbarFragment { 
        private ImageView mPreview;

        private SurfaceView mPreviewSurface;



        private GridPreviewPage(Activity activity, int id, Uri previewUri, String name, int rows,

                int cols) {

            super(null);

            mPageId = id;

            mPreviewAsset = new ContentUriAsset(activity, previewUri,

                    RequestOptions.fitCenterTransform());

            mName = name;

            mRows = rows;

            mCols = cols;

            mActivity = activity;

        }



        @Override

        public void setCard(CardView card) {

            super.setCard(card);

            mPreview = card.findViewById(R.id.grid_preview_image);

            mPreviewSurface = card.findViewById(R.id.grid_preview_surface);

        }



        public void bindPreviewContent() {

            Resources resources = card.getResources();

            bindWallpaperIfAvailable();

            final boolean usesSurfaceViewForPreview = mGridManager.usesSurfaceView();

            mPreview.setVisibility(usesSurfaceViewForPreview ? View.GONE : View.VISIBLE);

            mPreviewSurface.setVisibility(usesSurfaceViewForPreview ? View.VISIBLE : View.GONE);

            if (usesSurfaceViewForPreview) {

                mPreviewSurface.setZOrderOnTop(true);

                mPreviewSurface.getHolder().addCallback(new SurfaceHolder.Callback() {

        private final SurfaceHolder.Callback mSurfaceCallback = new SurfaceHolder.Callback() {



            private Surface mLastSurface;

            private Message mCallback;



            @Override

            public void surfaceCreated(SurfaceHolder holder) {

                if (mLastSurface != holder.getSurface()) {

                    mLastSurface = holder.getSurface();

                    Bundle result = mGridManager.renderPreview(

                            SurfaceViewUtils.createSurfaceViewRequest(mPreviewSurface), mName);

                    if (result != null) {
@@ -325,6 +302,7 @@ public class GridFragment extends AppbarFragment { 
                        mCallback = SurfaceViewUtils.getCallback(result);

                    }

                }

            }



            @Override

            public void surfaceChanged(SurfaceHolder holder, int format, int width,
@@ -342,7 +320,36 @@ public class GridFragment extends AppbarFragment { 
                    }

                }

            }

                });

        };



        private GridPreviewPage(Activity activity, int id, Uri previewUri, String name, int rows,

                int cols) {

            super(null);

            mPageId = id;

            mPreviewAsset = new ContentUriAsset(activity, previewUri,

                    RequestOptions.fitCenterTransform());

            mName = name;

            mRows = rows;

            mCols = cols;

            mActivity = activity;

        }



        @Override

        public void setCard(CardView card) {

            super.setCard(card);

            mPreview = card.findViewById(R.id.grid_preview_image);

            mPreviewSurface = card.findViewById(R.id.grid_preview_surface);

        }



        public void bindPreviewContent() {

            Resources resources = card.getResources();

            bindWallpaperIfAvailable();

            final boolean usesSurfaceViewForPreview = mGridManager.usesSurfaceView();

            mPreview.setVisibility(usesSurfaceViewForPreview ? View.GONE : View.VISIBLE);

            mPreviewSurface.setVisibility(usesSurfaceViewForPreview ? View.VISIBLE : View.GONE);

            if (usesSurfaceViewForPreview) {

                mPreviewSurface.setZOrderOnTop(true);

                mPreviewSurface.getHolder().addCallback(mSurfaceCallback);

            } else {

                mPreviewAsset.loadDrawableWithTransition(mActivity,

                        mPreview /* imageView */,