| /* |
| * Copyright (C) 2010 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.systemui.recent; |
| |
| import com.android.systemui.R; |
| |
| import com.android.ex.carousel.CarouselView; |
| import com.android.ex.carousel.CarouselViewHelper; |
| import com.android.ex.carousel.CarouselRS.CarouselCallback; |
| import com.android.ex.carousel.CarouselViewHelper.DetailTextureParameters; |
| |
| import java.util.ArrayList; |
| import java.util.List; |
| |
| import android.app.Activity; |
| import android.app.ActivityManager; |
| import android.app.ActivityManagerNative; |
| import android.app.IActivityManager; |
| import android.app.IThumbnailReceiver; |
| import android.app.ActivityManager.RunningTaskInfo; |
| import android.content.ActivityNotFoundException; |
| import android.content.Context; |
| import android.content.Intent; |
| import android.content.pm.ActivityInfo; |
| import android.content.pm.PackageManager; |
| import android.content.pm.ResolveInfo; |
| import android.content.res.Configuration; |
| import android.content.res.Resources; |
| import android.graphics.Bitmap; |
| import android.graphics.BitmapFactory; |
| import android.graphics.Canvas; |
| import android.graphics.Matrix; |
| import android.graphics.Paint; |
| import android.graphics.PaintFlagsDrawFilter; |
| import android.graphics.PorterDuffXfermode; |
| import android.graphics.PorterDuff; |
| import android.graphics.Bitmap.Config; |
| import android.graphics.drawable.Drawable; |
| import android.graphics.PixelFormat; |
| import android.os.Bundle; |
| import android.os.RemoteException; |
| import android.util.Log; |
| import android.view.View; |
| import android.view.View.MeasureSpec; |
| import android.widget.TextView; |
| |
| public class RecentApplicationsActivity extends Activity { |
| private static final String TAG = "RecentApplicationsActivity"; |
| private static boolean DBG = false; |
| private static final int CARD_SLOTS = 56; |
| private static final int VISIBLE_SLOTS = 7; |
| private static final int MAX_TASKS = VISIBLE_SLOTS * 2; |
| |
| // TODO: these should be configurable |
| private static final int DETAIL_TEXTURE_MAX_WIDTH = 200; |
| private static final int DETAIL_TEXTURE_MAX_HEIGHT = 80; |
| private static final int TEXTURE_WIDTH = 256; |
| private static final int TEXTURE_HEIGHT = 256; |
| |
| private ActivityManager mActivityManager; |
| private List<RunningTaskInfo> mRunningTaskList; |
| private boolean mPortraitMode = true; |
| private ArrayList<ActivityDescription> mActivityDescriptions |
| = new ArrayList<ActivityDescription>(); |
| private CarouselView mCarouselView; |
| private LocalCarouselViewHelper mHelper; |
| private View mNoRecentsView; |
| private Bitmap mLoadingBitmap; |
| private Bitmap mRecentOverlay; |
| private boolean mHidden = false; |
| private boolean mHiding = false; |
| private DetailInfo mDetailInfo; |
| |
| /** |
| * This class is a container for all items associated with the DetailView we'll |
| * be drawing to a bitmap and sending to Carousel. |
| * |
| */ |
| static final class DetailInfo { |
| public DetailInfo(View _view, TextView _title, TextView _desc) { |
| view = _view; |
| title = _title; |
| description = _desc; |
| } |
| |
| /** |
| * Draws view into the given bitmap, if provided |
| * @param bitmap |
| */ |
| public Bitmap draw(Bitmap bitmap) { |
| resizeView(view, DETAIL_TEXTURE_MAX_WIDTH, DETAIL_TEXTURE_MAX_HEIGHT); |
| int desiredWidth = view.getWidth(); |
| int desiredHeight = view.getHeight(); |
| if (bitmap == null || desiredWidth != bitmap.getWidth() |
| || desiredHeight != bitmap.getHeight()) { |
| bitmap = Bitmap.createBitmap(desiredWidth, desiredHeight, Config.ARGB_8888); |
| } |
| Canvas canvas = new Canvas(bitmap); |
| view.draw(canvas); |
| return bitmap; |
| } |
| |
| /** |
| * Force a layout pass on the given view. |
| */ |
| private void resizeView(View view, int maxWidth, int maxHeight) { |
| int widthSpec = MeasureSpec.getMode(MeasureSpec.AT_MOST) |
| | MeasureSpec.getSize(maxWidth); |
| int heightSpec = MeasureSpec.getMode(MeasureSpec.AT_MOST) |
| | MeasureSpec.getSize(maxHeight); |
| view.measure(widthSpec, heightSpec); |
| view.layout(0, 0, view.getMeasuredWidth(), view.getMeasuredHeight()); |
| Log.v(TAG, "RESIZED VIEW: " + view.getWidth() + ", " + view.getHeight()); |
| } |
| |
| public View view; |
| public TextView title; |
| public TextView description; |
| } |
| |
| static class ActivityDescription { |
| int id; |
| Bitmap thumbnail; // generated by Activity.onCreateThumbnail() |
| Drawable icon; // application package icon |
| String label; // application package label |
| CharSequence description; // generated by Activity.onCreateDescription() |
| Intent intent; // launch intent for application |
| Matrix matrix; // arbitrary rotation matrix to correct orientation |
| int position; // position in list |
| |
| public ActivityDescription(Bitmap _thumbnail, |
| Drawable _icon, String _label, String _desc, int _id, int _pos) |
| { |
| thumbnail = _thumbnail; |
| icon = _icon; |
| label = _label; |
| description = _desc; |
| id = _id; |
| position = _pos; |
| } |
| |
| public void clear() { |
| icon = null; |
| thumbnail = null; |
| label = null; |
| description = null; |
| intent = null; |
| matrix = null; |
| id = -1; |
| position = -1; |
| } |
| }; |
| |
| private ActivityDescription findActivityDescription(int id) { |
| for (int i = 0; i < mActivityDescriptions.size(); i++) { |
| ActivityDescription item = mActivityDescriptions.get(i); |
| if (item != null && item.id == id) { |
| return item; |
| } |
| } |
| return null; |
| } |
| |
| private class LocalCarouselViewHelper extends CarouselViewHelper { |
| private DetailTextureParameters mDetailParams = new DetailTextureParameters(10.0f, 20.0f); |
| |
| public LocalCarouselViewHelper(Context context) { |
| super(context); |
| } |
| |
| @Override |
| public DetailTextureParameters getDetailTextureParameters(int id) { |
| return mDetailParams; |
| } |
| |
| public void onCardSelected(int n) { |
| if (n < mActivityDescriptions.size()) { |
| ActivityDescription item = mActivityDescriptions.get(n); |
| if (item.id >= 0) { |
| // This is an active task; it should just go to the foreground. |
| final ActivityManager am = (ActivityManager) |
| getSystemService(Context.ACTIVITY_SERVICE); |
| am.moveTaskToFront(item.id, ActivityManager.MOVE_TASK_WITH_HOME); |
| } else if (item.intent != null) { |
| // prepare a launch intent and send it |
| item.intent.addFlags(Intent.FLAG_ACTIVITY_LAUNCHED_FROM_HISTORY |
| | Intent.FLAG_ACTIVITY_TASK_ON_HOME); |
| try { |
| if (DBG) Log.v(TAG, "Starting intent " + item.intent); |
| startActivity(item.intent); |
| overridePendingTransition(R.anim.recent_app_enter, R.anim.recent_app_leave); |
| } catch (ActivityNotFoundException e) { |
| if (DBG) Log.w("Recent", "Unable to launch recent task", e); |
| } |
| finish(); |
| } |
| } |
| } |
| |
| @Override |
| public Bitmap getTexture(final int id) { |
| if (DBG) Log.v(TAG, "onRequestTexture(" + id + ")"); |
| ActivityDescription info; |
| synchronized(mActivityDescriptions) { |
| info = mActivityDescriptions.get(id); |
| } |
| Bitmap bitmap = null; |
| if (info != null) { |
| bitmap = compositeBitmap(info); |
| } |
| return bitmap; |
| } |
| |
| @Override |
| public Bitmap getDetailTexture(int n) { |
| Bitmap bitmap = null; |
| if (n < mActivityDescriptions.size()) { |
| ActivityDescription item = mActivityDescriptions.get(n); |
| mDetailInfo.title.setText(item.label); |
| mDetailInfo.description.setText(item.description); |
| bitmap = mDetailInfo.draw(null); |
| } |
| return bitmap; |
| } |
| }; |
| |
| private Bitmap compositeBitmap(ActivityDescription info) { |
| final int targetWidth = TEXTURE_WIDTH; |
| final int targetHeight = TEXTURE_HEIGHT; |
| final int border = 3; // inset along the edge for thumnnail content |
| final int overlap = 1; // how many pixels of overlap between border and thumbnail |
| final Resources res = getResources(); |
| if (mRecentOverlay == null) { |
| mRecentOverlay = BitmapFactory.decodeResource(res, R.drawable.recent_overlay); |
| } |
| |
| // Create a bitmap of the proper size/format and set the canvas to draw to it |
| final Bitmap result = Bitmap.createBitmap(targetWidth, targetHeight, Bitmap.Config.ARGB_8888); |
| final Canvas canvas = new Canvas(result); |
| canvas.setDrawFilter(new PaintFlagsDrawFilter(Paint.DITHER_FLAG, Paint.FILTER_BITMAP_FLAG)); |
| Paint paint = new Paint(); |
| paint.setFilterBitmap(false); |
| |
| paint.setXfermode(new PorterDuffXfermode(PorterDuff.Mode.SRC)); |
| canvas.save(); |
| if (info.thumbnail != null) { |
| // Draw the thumbnail |
| int sourceWidth = targetWidth - 2 * (border - overlap); |
| int sourceHeight = targetHeight - 2 * (border - overlap); |
| final float scaleX = (float) sourceWidth / info.thumbnail.getWidth(); |
| final float scaleY = (float) sourceHeight / info.thumbnail.getHeight(); |
| canvas.translate(border * 0.5f, border * 0.5f); |
| canvas.scale(scaleX, scaleY); |
| canvas.drawBitmap(info.thumbnail, 0, 0, paint); |
| } else { |
| // Draw the Loading bitmap placeholder, TODO: Remove when RS handles blending |
| final float scaleX = (float) targetWidth / mLoadingBitmap.getWidth(); |
| final float scaleY = (float) targetHeight / mLoadingBitmap.getHeight(); |
| canvas.scale(scaleX, scaleY); |
| canvas.drawBitmap(mLoadingBitmap, 0, 0, paint); |
| } |
| canvas.restore(); |
| |
| // Draw overlay |
| canvas.save(); |
| final float scaleOverlayX = (float) targetWidth / mRecentOverlay.getWidth(); |
| final float scaleOverlayY = (float) targetHeight / mRecentOverlay.getHeight(); |
| canvas.scale(scaleOverlayX, scaleOverlayY); |
| paint.setXfermode(new PorterDuffXfermode(PorterDuff.Mode.ADD)); |
| canvas.drawBitmap(mRecentOverlay, 0, 0, paint); |
| canvas.restore(); |
| |
| // Draw icon |
| if (info.icon != null) { |
| canvas.save(); |
| info.icon.draw(canvas); |
| canvas.restore(); |
| } |
| |
| return result; |
| } |
| |
| private final IThumbnailReceiver mThumbnailReceiver = new IThumbnailReceiver.Stub() { |
| |
| public void finished() throws RemoteException { |
| |
| } |
| |
| public void newThumbnail(final int id, final Bitmap bitmap, CharSequence description) |
| throws RemoteException { |
| int w = bitmap.getWidth(); |
| int h = bitmap.getHeight(); |
| if (DBG) Log.v(TAG, "New thumbnail for id=" + id + ", dimensions=" + w + "x" + h |
| + " description '" + description + "'"); |
| ActivityDescription info = findActivityDescription(id); |
| if (info != null) { |
| info.thumbnail = bitmap; |
| info.description = description; |
| final int thumbWidth = bitmap.getWidth(); |
| final int thumbHeight = bitmap.getHeight(); |
| if ((mPortraitMode && thumbWidth > thumbHeight) |
| || (!mPortraitMode && thumbWidth < thumbHeight)) { |
| Matrix matrix = new Matrix(); |
| matrix.setRotate(90.0f, (float) thumbWidth / 2, (float) thumbHeight / 2); |
| info.matrix = matrix; |
| } else { |
| info.matrix = null; |
| } |
| // Force Carousel to request new textures for this item. |
| mCarouselView.setTextureForItem(info.position, null); |
| mCarouselView.setDetailTextureForItem(info.position, 0, 0, 0, 0, null); |
| } else { |
| if (DBG) Log.v(TAG, "Can't find view for id " + id); |
| } |
| } |
| }; |
| |
| /** |
| * We never really finish() RecentApplicationsActivity, since we don't want to |
| * get destroyed and pay the start-up cost to restart it. |
| */ |
| @Override |
| public void finish() { |
| moveTaskToBack(true); |
| } |
| |
| @Override |
| protected void onNewIntent(Intent intent) { |
| mHidden = !mHidden; |
| if (mHidden) { |
| mHiding = true; |
| moveTaskToBack(true); |
| } else { |
| mHiding = false; |
| } |
| super.onNewIntent(intent); |
| } |
| |
| @Override |
| protected void onCreate(Bundle savedInstanceState) { |
| super.onCreate(savedInstanceState); |
| |
| final Resources res = getResources(); |
| final View decorView = getWindow().getDecorView(); |
| |
| getWindow().getDecorView().setBackgroundColor(0x80000000); |
| |
| if (mCarouselView == null) { |
| long t = System.currentTimeMillis(); |
| setContentView(R.layout.recent_apps_activity); |
| long elapsed = System.currentTimeMillis() - t; |
| Log.v(TAG, "Recents layout took " + elapsed + "ms to load"); |
| mLoadingBitmap = BitmapFactory.decodeResource(res, R.drawable.recent_rez_border); |
| mCarouselView = (CarouselView)findViewById(R.id.carousel); |
| mHelper = new LocalCarouselViewHelper(this); |
| mHelper.setCarouselView(mCarouselView); |
| |
| mCarouselView.setSlotCount(CARD_SLOTS); |
| mCarouselView.setVisibleSlots(VISIBLE_SLOTS); |
| mCarouselView.createCards(0); |
| mCarouselView.setStartAngle((float) -(2.0f*Math.PI * 5 / CARD_SLOTS)); |
| mCarouselView.setDefaultBitmap(mLoadingBitmap); |
| mCarouselView.setLoadingBitmap(mLoadingBitmap); |
| mCarouselView.setRezInCardCount(3.0f); |
| mCarouselView.getHolder().setFormat(PixelFormat.TRANSLUCENT); |
| |
| mNoRecentsView = (View) findViewById(R.id.no_applications_message); |
| |
| mActivityManager = (ActivityManager) getSystemService(Context.ACTIVITY_SERVICE); |
| mPortraitMode = decorView.getHeight() > decorView.getWidth(); |
| |
| // Load detail view which will be used to render text |
| View detail = getLayoutInflater().inflate(R.layout.recents_detail_view, null); |
| TextView title = (TextView) detail.findViewById(R.id.app_title); |
| TextView description = (TextView) detail.findViewById(R.id.app_description); |
| mDetailInfo = new DetailInfo(detail, title, description); |
| |
| refresh(); |
| } |
| } |
| |
| @Override |
| protected void onResume() { |
| super.onResume(); |
| refresh(); |
| } |
| |
| @Override |
| public void onConfigurationChanged(Configuration newConfig) { |
| super.onConfigurationChanged(newConfig); |
| mPortraitMode = newConfig.orientation == Configuration.ORIENTATION_PORTRAIT; |
| if (DBG) Log.v(TAG, "CONFIG CHANGE, mPortraitMode = " + mPortraitMode); |
| refresh(); |
| } |
| |
| void updateRunningTasks() { |
| mRunningTaskList = mActivityManager.getRunningTasks(MAX_TASKS, 0, mThumbnailReceiver); |
| if (DBG) Log.v(TAG, "Portrait: " + mPortraitMode); |
| for (RunningTaskInfo r : mRunningTaskList) { |
| if (r.thumbnail != null) { |
| int thumbWidth = r.thumbnail.getWidth(); |
| int thumbHeight = r.thumbnail.getHeight(); |
| if (DBG) Log.v(TAG, "Got thumbnail " + thumbWidth + "x" + thumbHeight); |
| ActivityDescription desc = findActivityDescription(r.id); |
| if (desc != null) { |
| desc.thumbnail = r.thumbnail; |
| desc.description = r.description; |
| if ((mPortraitMode && thumbWidth > thumbHeight) |
| || (!mPortraitMode && thumbWidth < thumbHeight)) { |
| Matrix matrix = new Matrix(); |
| matrix.setRotate(90.0f, (float) thumbWidth / 2, (float) thumbHeight / 2); |
| desc.matrix = matrix; |
| } |
| } else { |
| if (DBG) Log.v(TAG, "Couldn't find ActivityDesc for id=" + r.id); |
| } |
| } else { |
| if (DBG) Log.v(TAG, "*** RUNNING THUMBNAIL WAS NULL ***"); |
| } |
| } |
| } |
| |
| private void updateRecentTasks() { |
| final PackageManager pm = getPackageManager(); |
| final ActivityManager am = (ActivityManager) getSystemService(Context.ACTIVITY_SERVICE); |
| |
| final List<ActivityManager.RecentTaskInfo> recentTasks = |
| am.getRecentTasks(MAX_TASKS, ActivityManager.RECENT_IGNORE_UNAVAILABLE); |
| |
| ActivityInfo homeInfo = new Intent(Intent.ACTION_MAIN).addCategory(Intent.CATEGORY_HOME) |
| .resolveActivityInfo(pm, 0); |
| |
| // IconUtilities iconUtilities = new IconUtilities(this); // FIXME |
| |
| int numTasks = recentTasks.size(); |
| mActivityDescriptions.clear(); |
| for (int i = 0, index = 0; i < numTasks && (index < MAX_TASKS); ++i) { |
| final ActivityManager.RecentTaskInfo recentInfo = recentTasks.get(i); |
| |
| Intent intent = new Intent(recentInfo.baseIntent); |
| if (recentInfo.origActivity != null) { |
| intent.setComponent(recentInfo.origActivity); |
| } |
| |
| // Skip the current home activity. |
| if (homeInfo != null |
| && homeInfo.packageName.equals(intent.getComponent().getPackageName()) |
| && homeInfo.name.equals(intent.getComponent().getClassName())) { |
| continue; |
| } |
| |
| intent.setFlags((intent.getFlags()&~Intent.FLAG_ACTIVITY_RESET_TASK_IF_NEEDED) |
| | Intent.FLAG_ACTIVITY_NEW_TASK); |
| final ResolveInfo resolveInfo = pm.resolveActivity(intent, 0); |
| if (resolveInfo != null) { |
| final ActivityInfo info = resolveInfo.activityInfo; |
| final String title = info.loadLabel(pm).toString(); |
| Drawable icon = info.loadIcon(pm); |
| |
| int id = recentTasks.get(i).id; |
| if (id != -1 && title != null && title.length() > 0 && icon != null) { |
| // icon = null; FIXME: iconUtilities.createIconDrawable(icon); |
| ActivityDescription item = new ActivityDescription( |
| null, icon, title, null, id, index); |
| item.intent = intent; |
| mActivityDescriptions.add(item); |
| if (DBG) Log.v(TAG, "Added item[" + index |
| + "], id=" + item.id |
| + ", title=" + item.label); |
| ++index; |
| } else { |
| if (DBG) Log.v(TAG, "SKIPPING item " + id); |
| } |
| } |
| } |
| } |
| |
| private final Runnable mRefreshRunnable = new Runnable() { |
| public void run() { |
| updateRecentTasks(); |
| updateRunningTasks(); |
| showCarousel(mActivityDescriptions.size() > 0); |
| } |
| }; |
| |
| private void showCarousel(boolean show) { |
| if (show) { |
| mCarouselView.createCards(mActivityDescriptions.size()); |
| for (int i = 1; i < mActivityDescriptions.size(); i++) { |
| // Force Carousel to update textures. Note we don't do this for the first item, |
| // since it will be updated when mThumbnailReceiver returns a thumbnail. |
| // TODO: only do this for apps that have changed. |
| mCarouselView.setTextureForItem(i, null); |
| mCarouselView.setDetailTextureForItem(i, 0, 0, 0, 0, null); |
| } |
| // Make carousel visible |
| mNoRecentsView.setVisibility(View.GONE); |
| mCarouselView.setVisibility(View.VISIBLE); |
| mCarouselView.createCards(mActivityDescriptions.size()); |
| } else { |
| // show "No Recent Tasks" |
| mNoRecentsView.setVisibility(View.VISIBLE); |
| mCarouselView.setVisibility(View.GONE); |
| } |
| } |
| |
| private void refresh() { |
| if (!mHiding && mCarouselView != null) { |
| // Don't update the view now. Instead, post a request so it happens next time |
| // we reach the looper after a delay. This way we can fold multiple refreshes |
| // into just the latest. |
| mCarouselView.removeCallbacks(mRefreshRunnable); |
| mCarouselView.postDelayed(mRefreshRunnable, 50); |
| } |
| } |
| } |
