Example usage for android.widget ImageView getDrawable

List of usage examples for android.widget ImageView getDrawable

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Introduction

In this page you can find the example usage for android.widget ImageView getDrawable.

Prototype

public Drawable getDrawable()

Source Link

Document

Gets the current Drawable, or null if no Drawable has been assigned.

Usage

From source file:com.kf5.sdk.system.photoview.PhotoViewAttacher.java

@Override
public void onGlobalLayout() {
    ImageView imageView = getImageView();

    if (null != imageView) {
        if (mZoomEnabled) {
            final int top = imageView.getTop();
            final int right = imageView.getRight();
            final int bottom = imageView.getBottom();
            final int left = imageView.getLeft();

            /**//  w  ww . j  a v  a  2s  .  c o  m
             * We need to check whether the ImageView's bounds have changed.
             * This would be easier if we targeted IChatModel 11+ as we could just use
             * View.OnLayoutChangeListener. Instead we have to replicate the
             * work, keeping track of the ImageView's bounds and then checking
             * if the values change.
             */
            if (top != mIvTop || bottom != mIvBottom || left != mIvLeft || right != mIvRight) {
                // Update our base matrix, as the bounds have changed
                updateBaseMatrix(imageView.getDrawable());

                // Update values as something has changed
                mIvTop = top;
                mIvRight = right;
                mIvBottom = bottom;
                mIvLeft = left;
            }
        } else {
            updateBaseMatrix(imageView.getDrawable());
        }
    }
}

From source file:com.cylan.jiafeigou.support.photoview.PhotoViewAttacher.java

@Override
public void onGlobalLayout() {
    ImageView imageView = getImageView();

    if (null != imageView) {
        if (mZoomEnabled) {
            final int top = imageView.getTop();
            final int right = imageView.getRight();
            final int bottom = imageView.getBottom();
            final int left = imageView.getLeft();

            /**//from  w  ww  .ja v  a  2  s  .  c o  m
             * We need to check whether the ImageView'account bounds have changed.
             * This would be easier if we targeted API 11+ as we could just use
             * View.OnLayoutChangeListener. Instead we have to replicate the
             * work, keeping track of the ImageView'account bounds and then checking
             * if the values change.
             */
            if (top != mIvTop || bottom != mIvBottom || left != mIvLeft || right != mIvRight) {
                // Update our base matrix, as the bounds have changed
                updateBaseMatrix(imageView.getDrawable());

                // Update values as something has changed
                mIvTop = top;
                mIvRight = right;
                mIvBottom = bottom;
                mIvLeft = left;
            }
        } else {
            updateBaseMatrix(imageView.getDrawable());
        }
    }
}

From source file:cn.golden.pinchzoomcanvasview.PinchZoomCanvasViewAttacher.java

@Override
public void onGlobalLayout() {
    ImageView imageView = getImageView();
    if (null != imageView) {
        if (mZoomEnabled) {
            final int top = imageView.getTop();
            final int right = imageView.getRight();
            final int bottom = imageView.getBottom();
            final int left = imageView.getLeft();

            /**//from  w ww .j a v a 2 s .c  o m
             * We need to check whether the ImageView's bounds have changed.
             * This would be easier if we targeted API 11+ as we could just use
             * View.OnLayoutChangeListener. Instead we have to replicate the
             * work, keeping track of the ImageView's bounds and then checking
             * if the values change.
             */
            if (top != mIvTop || bottom != mIvBottom || left != mIvLeft || right != mIvRight) {
                // Update our base matrix, as the bounds have changed
                updateBaseMatrix(imageView.getDrawable());

                // Update values as something has changed
                mIvTop = top;
                mIvRight = right;
                mIvBottom = bottom;
                mIvLeft = left;
            }
        } else {
            if (!isInEdit) {
                updateBaseMatrix(imageView.getDrawable());
            }
        }
    }
}

From source file:baizhuan.hangzhou.com.gankcopy.view.customview.photoview.PhotoViewAttacher.java

@Override
public void onGlobalLayout() {
    ImageView imageView = getImageView();

    if (null != imageView) {
        if (mZoomEnabled) {
            final int top = imageView.getTop();
            final int right = imageView.getRight();
            final int bottom = imageView.getBottom();
            final int left = imageView.getLeft();

            /**/*  w w  w.jav  a2s  .  c o  m*/
             * We need to check whether the ImageView's bounds have changed.
             * This would be easier if we targeted API 11+ as we could just use
             * View.OnLayoutChangeListener. Instead we have to replicate the
             * work, keeping track of the ImageView's bounds and then checking
             * if the values change.
             */
            if (top != mIvTop || bottom != mIvBottom || left != mIvLeft || right != mIvRight) {
                // Update our base matrix, as the bounds have changed
                updateBaseMatrix(imageView.getDrawable());

                // Update values as something has changed
                mIvTop = top;
                mIvRight = right;
                mIvBottom = bottom;
                mIvLeft = left;
            }
        } else {
            updateBaseMatrix(imageView.getDrawable());
        }
    }
}

From source file:com.first.akashshrivastava.showernow.ShowerActivity.java

@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.main_shower_activity);

    /*Launching BootReceiver to test
    Intent playIntent = new Intent(getApplicationContext(), BootReceiver.class);
    startActivity(playIntent);//from  w w w  .  j  av a2  s.c  o m
    */

    //Mobile ads initialization....The long number is the AdID, can be found on AdMob -  ca-app-pub-8782530512283806/2988799979
    MobileAds.initialize(getApplicationContext(), "ca-app-pub-8782530512283806/2988799979");
    AdView mAdView = (AdView) findViewById(R.id.adView);
    AdRequest adRequest = new AdRequest.Builder().build();
    mAdView.loadAd(adRequest);

    //Facebook SDK initialization...
    FacebookSdk.sdkInitialize(getApplicationContext());
    AppEventsLogger.activateApp(this);

    shareDialog = new ShareDialog(this);

    mDatabaseReference = FirebaseDatabase.getInstance().getReference();
    mFirebaseAuth = FirebaseAuth.getInstance();

    final ImageView genderImage = (ImageView) findViewById(R.id.imageGender);

    guyText = (TextView) findViewById(R.id.guyText);

    topText = (TextView) findViewById(R.id.textView2);

    SharedPreferences prefs = getSharedPreferences("myPrefs", Context.MODE_PRIVATE);

    extraAge = prefs.getInt("age", 0);
    extraFluffiness = prefs.getString("fluffiness", "");
    extraGender = prefs.getString("gender", "");
    extraOldTime = prefs.getLong("time", 0);
    extraSteps = prefs.getFloat("stepsBoot", 0);

    switch (extraGender) {
    case "male":
        genderImage.setImageResource(R.drawable.male_white_outline);
        break;
    case "female":
        genderImage.setImageResource(R.drawable.female_white_outline);
        break;
    case "other":
        genderImage.setImageResource(R.drawable.other_white_outline);
        break;
    }

    genderImage.setOnTouchListener(new View.OnTouchListener() {

        @Override
        public boolean onTouch(View v, MotionEvent event) { //set alarm
            //Swith ccase
            switch (event.getAction()) {

            case MotionEvent.ACTION_UP:
                // PRESSED ..PRESSED

                if (genderImage.getDrawable().getConstantState() == getResources()
                        .getDrawable(R.drawable.female_white_outline_pressed).getConstantState()) {
                    genderImage.setImageResource(R.drawable.female_white_outline);
                } else if (genderImage.getDrawable().getConstantState() == getResources()
                        .getDrawable(R.drawable.male_white_outline_pressed).getConstantState()) {
                    genderImage.setImageResource(R.drawable.male_white_outline);
                } else if (genderImage.getDrawable().getConstantState() == getResources()
                        .getDrawable(R.drawable.other_white_outline_pressed).getConstantState()) {
                    genderImage.setImageResource(R.drawable.other_white_outline);
                }

                //Resets the wave after shower..this is not getting called for some reason....
                waveProgressbar.setCurrent(0, "");
                guyText.setText("0 %");
                waveProgressbar.setVisibility(View.INVISIBLE);

                topText.setText("You have showered! \n When the wave hits 100% its time for your next shower ");

                if (fluffiness != null && gotSteps) {
                    Calendar cal = Calendar.getInstance();
                    Intent activate = new Intent(ShowerActivity.this, AlarmReceiver.class);
                    activate.putExtra("age", age);
                    activate.putExtra("fluffiness", fluffiness);
                    activate.putExtra("gender", gender);
                    activate.putExtra("steps", steps);
                    activate.putExtra("time", System.currentTimeMillis());

                    AlarmManager alarms;
                    PendingIntent alarmIntent = PendingIntent.getBroadcast(ShowerActivity.this, 0, activate,
                            FLAG_CANCEL_CURRENT);
                    alarms = (AlarmManager) getSystemService(ALARM_SERVICE);
                    alarms.cancel(alarmIntent);

                    alarms.setRepeating(AlarmManager.RTC_WAKEUP, cal.getTimeInMillis() + 5000, 1000 * 60,
                            alarmIntent);//sets the alarm

                    mDatabaseReference.child("User").child(mFirebaseAuth.getCurrentUser().getUid())
                            .child("Steps").setValue(steps);//sets old steps
                    oldSteps = steps;
                    mDatabaseReference.child("User").child(mFirebaseAuth.getCurrentUser().getUid())
                            .child("Time").setValue(System.currentTimeMillis());
                    oldTime = System.currentTimeMillis();
                    newUser = false;

                    SharedPreferences sharedPref = getSharedPreferences("myPrefs", Context.MODE_PRIVATE);
                    SharedPreferences.Editor editor = sharedPref.edit();
                    editor.putInt("age", age);
                    editor.putString("fluffiness", fluffiness);
                    editor.putString("gender", gender);
                    editor.putFloat("steps", steps);
                    editor.putLong("time", System.currentTimeMillis());
                    editor.putFloat("stepsBoot", 0);
                    editor.putBoolean("bootStart", true);
                    editor.apply();

                } else if (!gotSteps) {
                    Toast.makeText(getApplicationContext(), "Waiting for steps", Toast.LENGTH_SHORT).show();
                }
                return true; // if you want to handle the touch event

            case MotionEvent.ACTION_DOWN:
                // RELEASED..RELEASED..

                if (genderImage.getDrawable().getConstantState() == getResources()
                        .getDrawable(R.drawable.female_white_outline).getConstantState()) {
                    genderImage.setImageResource(R.drawable.female_white_outline_pressed);

                } else if (genderImage.getDrawable().getConstantState() == getResources()
                        .getDrawable(R.drawable.male_white_outline).getConstantState()) {
                    genderImage.setImageResource(R.drawable.male_white_outline_pressed);

                } else if (genderImage.getDrawable().getConstantState() == getResources()
                        .getDrawable(R.drawable.other_white_outline).getConstantState()) {
                    genderImage.setImageResource(R.drawable.other_white_outline_pressed);

                }

                return true; // if you want to handle the touch event
            }
            //Switch case end bracket

            return false;
        }

    });

    createWave();
    setMenuColor();
    setupStepcount();
    setWaveHeight();

    FloatingActionButton editDetails = (FloatingActionButton) findViewById(R.id.menu_item4); //edit user information. Goes to main activity
    editDetails.setOnClickListener(new View.OnClickListener() {

        public void onClick(View v) {

            /*
            Fragment fragment = new Fragment();
            FragmentTransaction transaction = manager.beginTransaction();
            transaction.add(ShowerActivity.java);
            transaction.addToBackStack(ShowerActivity.java);
            transaction.commit();
                    
            */
            //Fragment B at pos 2 should open when edit details is pressed..
            Intent i = new Intent(ShowerActivity.this, MainActivity.class);
            i.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
            startActivity(i);
        }
    });

    FloatingActionButton fabmenuDeleteAccount = (FloatingActionButton) findViewById(R.id.delete_Account);
    fabmenuDeleteAccount.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {

            dialog();
        }
    });

    FloatingActionButton fabMenuItem1 = (FloatingActionButton) findViewById(R.id.menu_item);
    fabMenuItem1.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {

            /*ComponentName receiver = new ComponentName(ShowerActivity.this, AlarmReceiver.class); // alarms.cancel(alarmIntent);??
            PackageManager pm = ShowerActivity.this.getPackageManager();
            pm.setComponentEnabledSetting(receiver,
                PackageManager.COMPONENT_ENABLED_STATE_DISABLED,
                PackageManager.DONT_KILL_APP);
                    
            stopService(new Intent(StepCountService.STEP_COUNT_SERVICE));*/

            //mFirebaseAuth.getCurrentUser().getUid() =null;

            SharedPreferences sharedPref = getSharedPreferences("myPrefs", Context.MODE_PRIVATE);
            SharedPreferences.Editor editor = sharedPref.edit();
            editor.putInt("age", 0);
            editor.putString("fluffiness", "");
            editor.putString("gender", "");
            editor.putFloat("steps", 0);
            editor.putLong("time", 0);
            editor.putFloat("stepsBoot", 0);
            editor.putBoolean("bootStart", false);
            editor.apply();

            Intent activate = new Intent(ShowerActivity.this, AlarmReceiver.class);
            PendingIntent alarmIntent = PendingIntent.getBroadcast(ShowerActivity.this, 0, activate,
                    FLAG_CANCEL_CURRENT);

            AlarmManager alarms = (AlarmManager) getSystemService(ALARM_SERVICE);
            alarms.cancel(alarmIntent);

            stopService(new Intent(ShowerActivity.this, StepCountService.class));

            mFirebaseAuth.getInstance().signOut();
            Intent i = new Intent(ShowerActivity.this, LoginActivity.class);
            startActivity(i);
        }
    });

    final FloatingActionButton shareButton = (FloatingActionButton) findViewById(R.id.shareButton);
    shareButton.setOnClickListener(new View.OnClickListener() {

        @Override
        public void onClick(View view) {

            Intent shareIntent = new Intent(Intent.ACTION_SEND);
            shareIntent.setType("text/plain");
            String shareBody = "Check out this showering app at: https://play.google.com/store/apps/details?id=com.first.akashshrivastava.showernow \n";
            String shareSubString = "An app that tells you when you should shower and apparently keeps you clean";
            shareIntent.putExtra(Intent.EXTRA_SUBJECT, shareSubString);
            shareIntent.putExtra(Intent.EXTRA_TEXT, shareBody);
            startActivity(Intent.createChooser(shareIntent, " Share using the following"));

        }
    });

    mDatabaseReference.addListenerForSingleValueEvent(new ValueEventListener() {
        @Override
        public void onDataChange(DataSnapshot snap) {

            try {
                if ((!(mFirebaseAuth.getCurrentUser().getUid().isEmpty()))
                        && snap.child("User").child(mFirebaseAuth.getCurrentUser().getUid()).child("gender")
                                .getValue().toString().equalsIgnoreCase("female")) {
                    genderImage.setImageResource(R.drawable.female_white_outline);
                } else if (snap.child("User").child(mFirebaseAuth.getCurrentUser().getUid()).child("gender")
                        .getValue().toString().equalsIgnoreCase("male")) {
                    genderImage.setImageResource(R.drawable.male_white_outline);
                } else if (snap.child("User").child(mFirebaseAuth.getCurrentUser().getUid()).child("gender")
                        .getValue().toString().equalsIgnoreCase("other")) {
                    genderImage.setImageResource(R.drawable.other_white_outline);
                }

            } catch (Exception e) {
                e.printStackTrace();
            }
            age = Integer.parseInt(snap.child("User").child(mFirebaseAuth.getCurrentUser().getUid())
                    .child("Age").getValue().toString());//gotta get int

            fluffiness = snap.child("User").child(mFirebaseAuth.getCurrentUser().getUid()).child("gender")
                    .getValue().toString();
            gender = snap.child("User").child(mFirebaseAuth.getCurrentUser().getUid()).child("gender")
                    .getValue().toString();

            if (snap.child("User").child(mFirebaseAuth.getCurrentUser().getUid()).child("Time").exists()) {
                oldTime = snap.child("User").child(mFirebaseAuth.getCurrentUser().getUid()).child("Time")
                        .getValue(Long.class);
                oldSteps = snap.child("User").child(mFirebaseAuth.getCurrentUser().getUid()).child("Steps")
                        .getValue(float.class);

            } else {
                newUser = true;
            }
        }

        @Override
        public void onCancelled(DatabaseError databaseError) {

        }
    });
}

From source file:com.android.launcher2.AsyncTaskCallback.java

private boolean beginDraggingWidget(View v) {
    mDraggingWidget = true;// w  w  w  .  jav a  2s .  co m
    // Get the widget preview as the drag representation
    ImageView image = (ImageView) v.findViewById(R.id.widget_preview);
    PendingAddItemInfo createItemInfo = (PendingAddItemInfo) v.getTag();

    // If the ImageView doesn't have a drawable yet, the widget preview hasn't been loaded and
    // we abort the drag.
    if (image.getDrawable() == null) {
        mDraggingWidget = false;
        return false;
    }

    // Compose the drag image
    Bitmap preview;
    Bitmap outline;
    float scale = 1f;
    if (createItemInfo instanceof PendingAddWidgetInfo) {
        // This can happen in some weird cases involving multi-touch. We can't start dragging
        // the widget if this is null, so we break out.
        if (mCreateWidgetInfo == null) {
            return false;
        }

        PendingAddWidgetInfo createWidgetInfo = mCreateWidgetInfo;
        createItemInfo = createWidgetInfo;
        int spanX = createItemInfo.spanX;
        int spanY = createItemInfo.spanY;
        int[] size = mLauncher.getWorkspace().estimateItemSize(spanX, spanY, createWidgetInfo, true);

        FastBitmapDrawable previewDrawable = (FastBitmapDrawable) image.getDrawable();
        float minScale = 1.25f;
        int maxWidth, maxHeight;
        maxWidth = Math.min((int) (previewDrawable.getIntrinsicWidth() * minScale), size[0]);
        maxHeight = Math.min((int) (previewDrawable.getIntrinsicHeight() * minScale), size[1]);
        preview = getWidgetPreview(createWidgetInfo.componentName, createWidgetInfo.previewImage,
                createWidgetInfo.icon, spanX, spanY, maxWidth, maxHeight);

        // Determine the image view drawable scale relative to the preview
        float[] mv = new float[9];
        Matrix m = new Matrix();
        m.setRectToRect(new RectF(0f, 0f, (float) preview.getWidth(), (float) preview.getHeight()),
                new RectF(0f, 0f, (float) previewDrawable.getIntrinsicWidth(),
                        (float) previewDrawable.getIntrinsicHeight()),
                Matrix.ScaleToFit.START);
        m.getValues(mv);
        scale = (float) mv[0];
    } else {
        PendingAddShortcutInfo createShortcutInfo = (PendingAddShortcutInfo) v.getTag();
        Drawable icon = mIconCache.getFullResIcon(createShortcutInfo.shortcutActivityInfo);
        preview = Bitmap.createBitmap(icon.getIntrinsicWidth(), icon.getIntrinsicHeight(),
                Bitmap.Config.ARGB_8888);

        mCanvas.setBitmap(preview);
        mCanvas.save();
        renderDrawableToBitmap(icon, preview, 0, 0, icon.getIntrinsicWidth(), icon.getIntrinsicHeight());
        mCanvas.restore();
        mCanvas.setBitmap(null);
        createItemInfo.spanX = createItemInfo.spanY = 1;
    }

    // Don't clip alpha values for the drag outline if we're using the default widget preview
    boolean clipAlpha = !(createItemInfo instanceof PendingAddWidgetInfo
            && (((PendingAddWidgetInfo) createItemInfo).previewImage == 0));

    // Save the preview for the outline generation, then dim the preview
    outline = Bitmap.createScaledBitmap(preview, preview.getWidth(), preview.getHeight(), false);

    // Start the drag
    mLauncher.lockScreenOrientation();
    mLauncher.getWorkspace().onDragStartedWithItem(createItemInfo, outline, clipAlpha);
    mDragController.startDrag(image, preview, this, createItemInfo, DragController.DRAG_ACTION_COPY, null,
            scale);
    outline.recycle();
    preview.recycle();
    return true;
}

From source file:com.mooc.viewpage_photoview_circleindicator.photoview.PhotoViewAttacher.java

@Override
public void onGlobalLayout() {
    ImageView imageView = getImageView();

    if (null != imageView) {
        if (mZoomEnabled) {
            final int top = imageView.getTop();
            final int right = imageView.getRight();
            final int bottom = imageView.getBottom();
            final int left = imageView.getLeft();

            /**/* w  w w .  j  a  va2s  . com*/
             * We need to check whether the ImageView's bounds have changed.
             * This would be easier if we targeted API 11+ as we could just use
             * View.OnLayoutChangeListener. Instead we have to replicate the
             * work, keeping track of the ImageView's bounds and then checking
             * if the values change.
             * ?
             */

            if (top != mIvTop || bottom != mIvBottom || left != mIvLeft || right != mIvRight) {
                // Update our base matrix, as the bounds have changed
                updateBaseMatrix(imageView.getDrawable(), false);

                // Update values as something has changed
                mIvTop = top;
                mIvRight = right;
                mIvBottom = bottom;
                mIvLeft = left;
            }
        } else {
            updateBaseMatrix(imageView.getDrawable(), false);
        }
    }
}

From source file:com.c4mprod.utils.ImageDownloader.java

/**
 * Download the specified image from the Internet and binds it to the provided ImageView. The
 * binding is immediate if the image is found in the cache and will be done asynchronously
 * otherwise. A null bitmap will be associated to the ImageView if an error occurs.
 * //from   w w w.j  av a 2  s  .com
 * @param url
 * @param imageView
 * @param subfolder
 *            the subfolder in sdcard cache
 * 
 */
public void download(String url, ImageView imageView, String subfolder) {
    if (subfolder != null) {
        mSubfolder = "/" + subfolder;
    } else {
        mSubfolder = "";
    }

    mfolder = Environment.getExternalStorageDirectory().getPath() + "/Android/data/"
            + imageView.getContext().getPackageName() + "/files/images" + mSubfolder;

    if (Environment.MEDIA_MOUNTED.equals(state)) {
        // We can read and write the media
        mExternalStorageAvailable = mExternalStorageWriteable = true;
        try {
            (new File(mfolder)).mkdirs();
            (new File(mfolder + "/.nomedia")).createNewFile();
        } catch (IOException e) {
            e.printStackTrace();
        }
    } else if (Environment.MEDIA_MOUNTED_READ_ONLY.equals(state)) {
        // We can only read the media
        mExternalStorageAvailable = true;
        mExternalStorageWriteable = false;
    } else {
        // Something else is wrong. It may be one of many other states, but
        // all we need
        // to know is we can neither read nor write
        mExternalStorageAvailable = mExternalStorageWriteable = false;
    }

    resetPurgeTimer();
    Bitmap bitmap = getBitmapFromCache(url);

    if (bitmap == null) {
        forceDownload(url, imageView);
    } else {
        cancelPotentialDownload(url, imageView);
        imageView.setImageBitmap(bitmap);
        imageView.setBackgroundDrawable(null);
        if (listener != null) {
            listener.onImageDownloaded(imageView, url, mfolder + "/" + URLEncoder.encode(url),
                    imageView.getDrawable().getIntrinsicWidth(), imageView.getDrawable().getIntrinsicWidth());
        }
    }
}

From source file:com.silentcircle.contacts.ContactPhotoManager.java

/**
 * Checks if the photo is present in cache.  If so, sets the photo on the view.
 *
 * @return false if the photo needs to be (re)loaded from the provider.
 *///www. jav  a2 s. c o m
private boolean loadCachedPhoto(ImageView view, Request request, boolean fadeIn) {
    BitmapHolder holder = mBitmapHolderCache.get(request.getKey());
    if (holder == null) {
        // The bitmap has not been loaded ==> show default avatar
        request.applyDefaultImage(view);
        return false;
    }

    if (holder.bytes == null) {
        request.applyDefaultImage(view);
        return holder.fresh;
    }

    Bitmap cachedBitmap = holder.bitmapRef == null ? null : holder.bitmapRef.get();
    if (cachedBitmap == null) {
        if (holder.bytes.length < 8 * 1024) {
            // Small thumbnails are usually quick to inflate. Let's do that on the UI thread
            inflateBitmap(holder, request.getRequestedExtent());
            cachedBitmap = holder.bitmap;
            if (cachedBitmap == null)
                return false;
        } else {
            // This is bigger data. Let's send that back to the Loader so that we can
            // inflate this in the background
            request.applyDefaultImage(view);
            return false;
        }
    }

    final Drawable previousDrawable = view.getDrawable();
    if (fadeIn && previousDrawable != null) {
        final Drawable[] layers = new Drawable[2];
        // Prevent cascade of TransitionDrawables.
        if (previousDrawable instanceof TransitionDrawable) {
            final TransitionDrawable previousTransitionDrawable = (TransitionDrawable) previousDrawable;
            layers[0] = previousTransitionDrawable
                    .getDrawable(previousTransitionDrawable.getNumberOfLayers() - 1);
        } else {
            layers[0] = previousDrawable;
        }
        layers[1] = new BitmapDrawable(mContext.getResources(), cachedBitmap);
        TransitionDrawable drawable = new TransitionDrawable(layers);
        view.setImageDrawable(drawable);
        drawable.startTransition(FADE_TRANSITION_DURATION);
    } else {
        view.setImageBitmap(cachedBitmap);
    }

    // Put the bitmap in the LRU cache. But only do this for images that are small enough
    // (we require that at least six of those can be cached at the same time)
    int byteCount = (Build.VERSION.SDK_INT < Build.VERSION_CODES.HONEYCOMB_MR1)
            ? cachedBitmap.getRowBytes() * cachedBitmap.getHeight()
            : cachedBitmap.getByteCount();
    if (byteCount < mBitmapCache.maxSize() / 6) {
        mBitmapCache.put(request.getKey(), cachedBitmap);
    }
    holder.bitmap = null; // Soften the reference

    return holder.fresh;
}

From source file:com.phonemetra.turbo.launcher.AsyncTaskCallback.java

private boolean beginDraggingWidget(View v) {
    mDraggingWidget = true;//  w  w  w .j  a  v  a 2 s . c  o  m
    // Get the widget preview as the drag representation
    ImageView image = (ImageView) v.findViewById(R.id.widget_preview);
    PendingAddItemInfo createItemInfo = (PendingAddItemInfo) v.getTag();

    // If the ImageView doesn't have a drawable yet, the widget preview hasn't been loaded and
    // we abort the drag.
    if (image.getDrawable() == null) {
        mDraggingWidget = false;
        return false;
    }

    // Compose the drag image
    Bitmap preview;
    Bitmap outline;
    float scale = 1f;
    Point previewPadding = null;

    if (createItemInfo instanceof PendingAddWidgetInfo) {
        // This can happen in some weird cases involving multi-touch. We can't start dragging
        // the widget if this is null, so we break out.
        if (mCreateWidgetInfo == null) {
            return false;
        }

        PendingAddWidgetInfo createWidgetInfo = mCreateWidgetInfo;
        createItemInfo = createWidgetInfo;
        int spanX = createItemInfo.spanX;
        int spanY = createItemInfo.spanY;
        int[] size = mLauncher.getWorkspace().estimateItemSize(spanX, spanY, createWidgetInfo, true);

        FastBitmapDrawable previewDrawable = (FastBitmapDrawable) image.getDrawable();
        float minScale = 1.25f;
        int maxWidth, maxHeight;
        maxWidth = Math.min((int) (previewDrawable.getIntrinsicWidth() * minScale), size[0]);
        maxHeight = Math.min((int) (previewDrawable.getIntrinsicHeight() * minScale), size[1]);

        int[] previewSizeBeforeScale = new int[1];

        preview = getWidgetPreviewLoader().generateWidgetPreview(createWidgetInfo.componentName,
                createWidgetInfo.previewImage, createWidgetInfo.icon, spanX, spanY, maxWidth, maxHeight, null,
                previewSizeBeforeScale);

        // Compare the size of the drag preview to the preview in the AppsCustomize tray
        int previewWidthInAppsCustomize = Math.min(previewSizeBeforeScale[0],
                getWidgetPreviewLoader().maxWidthForWidgetPreview(spanX));
        scale = previewWidthInAppsCustomize / (float) preview.getWidth();

        // The bitmap in the AppsCustomize tray is always the the same size, so there
        // might be extra pixels around the preview itself - this accounts for that
        if (previewWidthInAppsCustomize < previewDrawable.getIntrinsicWidth()) {
            int padding = (previewDrawable.getIntrinsicWidth() - previewWidthInAppsCustomize) / 2;
            previewPadding = new Point(padding, 0);
        }
    } else {
        PendingAddShortcutInfo createShortcutInfo = (PendingAddShortcutInfo) v.getTag();
        Drawable icon = mIconCache.getFullResIcon(createShortcutInfo.shortcutActivityInfo);
        preview = Bitmap.createBitmap(icon.getIntrinsicWidth(), icon.getIntrinsicHeight(),
                Bitmap.Config.ARGB_8888);

        mCanvas.setBitmap(preview);
        mCanvas.save();
        WidgetPreviewLoader.renderDrawableToBitmap(icon, preview, 0, 0, icon.getIntrinsicWidth(),
                icon.getIntrinsicHeight());
        mCanvas.restore();
        mCanvas.setBitmap(null);
        createItemInfo.spanX = createItemInfo.spanY = 1;
    }

    // Don't clip alpha values for the drag outline if we're using the default widget preview
    boolean clipAlpha = !(createItemInfo instanceof PendingAddWidgetInfo
            && (((PendingAddWidgetInfo) createItemInfo).previewImage == 0));

    // Save the preview for the outline generation, then dim the preview
    outline = Bitmap.createScaledBitmap(preview, preview.getWidth(), preview.getHeight(), false);

    // Start the drag
    mLauncher.lockScreenOrientation();
    mLauncher.getWorkspace().onDragStartedWithItem(createItemInfo, outline, clipAlpha);
    mDragController.startDrag(image, preview, this, createItemInfo, DragController.DRAG_ACTION_COPY,
            previewPadding, scale);
    outline.recycle();
    preview.recycle();
    return true;
}