Java Code Examples for android.widget.ImageView#getMeasuredWidth()

/**
 * 恢复
 *
 * @param img
 */
private void resumeRotation(ImageView img, boolean useAnim) {
    int w = AndroidUtils.getWindowWidth(getActivity()), h = AndroidUtils.getWindowHeight(getActivity());
    int iw = img.getMeasuredWidth(), ih = img.getMeasuredHeight();
    if (useAnim) {
        ObjectAnimator move = ObjectAnimator.ofFloat(img, "translationY", (h - ih) / 2f, 0);
        move.setDuration(400);
        ObjectAnimator scaleX = ObjectAnimator.ofFloat(img, "scaleX", (float) h / iw, 1.0f);
        ObjectAnimator scaleY = ObjectAnimator.ofFloat(img, "scaleY", (float) w / ih, 1.0f);
        ObjectAnimator rotation = ObjectAnimator.ofFloat(img, "rotation", 90f, 0f);
        AnimatorSet set = new AnimatorSet();
        set.play(scaleX).with(scaleY).with(rotation).with(move);
        set.setDuration(600);
        set.start();
    } else {
        img.setTranslationY(0f);
        img.setScaleX(1.0f);
        img.setScaleY(1.0f);
        img.setRotation(0f);
    }
}
 

/**
 * 通过jni进行图片模糊,一维高斯算法
 * @param bkg       需要模糊的bitmap
 * @param radius    模糊半径
 * @param view      显示模糊图片的ImageView
 * @return          消耗时间,单位毫秒（ms）
 */
public static long blurByJni_Gaussian(Bitmap bkg, int radius, ImageView view) {
    long startMs = System.currentTimeMillis();
    float scaleFactor = 8;
    int width = (int)(view.getMeasuredWidth()/scaleFactor);
    int height = (int)(view.getMeasuredHeight()/scaleFactor);


    Bitmap overlay = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888);
    Canvas canvas = new Canvas(overlay);
    canvas.scale(1 / scaleFactor, 1 / scaleFactor);
    Paint paint = new Paint();
    paint.setFlags(Paint.FILTER_BITMAP_FLAG);
    canvas.drawBitmap(bkg, 0, 0, paint);

    int[] pixels = new int[width * height];
    overlay.getPixels(pixels, 0, width, 0, 0, width, height);
    int[] newPixels = toGaussianBlur(pixels,radius,width,height);
    overlay.setPixels(newPixels, 0, width, 0, 0, width, height);

    view.setImageBitmap(overlay);

    return System.currentTimeMillis() - startMs;
}
 

@Override
protected void onPreExecute() {
    super.onPreExecute();

    final ImageView imageView = imageViewReference.get();
    if (imageView != null) {
        w = imageView.getMeasuredWidth();
        h = imageView.getMeasuredHeight();
    }
}
 

/**
 * 初始化 singleLine 模式需要的视图
 *
 * @param widthMeasureSpec
 * @param heightMeasureSpec
 */
private void initSingleLineView(int widthMeasureSpec, int heightMeasureSpec) {
    if (!mSingleLine) {
        return;
    }
    if (mShowRightImage) {
        imageView = new ImageView(getContext());
        imageView.setImageResource(mRightImageResId);
        imageView.setLayoutParams(new LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT));
        imageView.setScaleType(ImageView.ScaleType.CENTER_INSIDE);
        measureChild(imageView, widthMeasureSpec, heightMeasureSpec);
        imageWidth = imageView.getMeasuredWidth();
        imageHeight = imageView.getMeasuredHeight();
        addView(imageView);
    }

    if (mShowEndText) {
        endText = (TextView) mInflater.inflate(mTagResId, null);
        if (mTagResId == DEFAULT_TAG_RESID) {
            endText.setBackgroundResource(mBackground);
            endText.setTextSize(TypedValue.COMPLEX_UNIT_SP, mTagSize);
            endText.setTextColor(mTagColor);
        }
        @SuppressLint("DrawAllocation") LayoutParams layoutParams = new LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT);
        endText.setLayoutParams(layoutParams);
        endText.setText(endTextString == null || endTextString.equals("") ? DEFAULT_END_TEXT_STRING : endTextString);
        measureChild(endText, widthMeasureSpec, heightMeasureSpec);
        endTextHeight = endText.getMeasuredHeight();
        endTextWidth = endText.getMeasuredWidth();
        addView(endText);
        endText.setOnClickListener(new OnClickListener() {
            @Override
            public void onClick(View view) {
                if (onTagClickListener != null) {
                    onTagClickListener.onTagClick(-1);
                }
            }
        });
    }
}
 

public static boolean isBitmapTooLarge(float bw,float bh,ImageView imageView){

        float bitmapArea =  bw * bh;
        float ivArea = imageView.getMeasuredWidth() * imageView.getMeasuredHeight();
        if(ivArea ==0){
            return false;
        }
        return (bitmapArea / ivArea) > 1.25f;
    }
 

@Override
protected void onLayout(boolean changed, int l, int t, int r, int b) {
    super.onLayout(changed, l, t, r, b);

    ImageView child = (ImageView) getChildAt(0);
    if (child != null) {
        float cl;
        float cr;
        if (mType == CircleIndicatorType.CIRTORECT) {
            int offset = (mRectWidth - mSize) / 2;
            cl = child.getLeft() - offset;
            cr = cl + mRectWidth;
        } else {
            cl = child.getLeft();
            cr = cl + child.getMeasuredWidth();

        }
        float ct = child.getTop();

        float cb = ct + child.getMeasuredHeight();
        mRect.set(cl, ct, cr, cb);
        mMoveSize = mMargin + mSize;

        int currentItem = mViewPager.getCurrentItem();
        if (mType == CircleIndicatorType.SCALE) {
            if (currentItem % mCount == 0) {
                doScaleAnim(child, ANIM_OUT);
            }
        }

        moveToPosition(mViewPager.getCurrentItem());

    }
}
 

@Override
protected void onLayout(boolean changed, int l, int t, int r, int b) {
    super.onLayout(changed, l, t, r, b);
    ImageView child = (ImageView) getChildAt(0);
    if (child != null) {
        float cl = child.getLeft();
        float ct = child.getTop();
        float cr = cl + child.getMeasuredWidth();
        float cb = ct + child.getMeasuredHeight();
        mRect.set(cl, ct, cr, cb);
        mMoveSize = mMargin + mRectWidth;
        moveToPosition(mViewPager.getCurrentItem());
    }
}
 

@Override
public void setData(List<Picture> list) {
    super.setData(list);
    int size = list.size();
    //最新的子View数量
    int count = getChildCount();
    for (int i = 0; i < count; i++) {
        ImageView view = (ImageView) getChildAt(i);
        int width = view.getMeasuredWidth();
        if (i >= size) {
            view.setVisibility(GONE);
        } else {
            Picture picture = list.get(i);
            view.setVisibility(VISIBLE);
            ZjbImageLoader.create(picture.getUrl())
                    .setQiniu(width, width)
                    .setDisplayType(ZjbImageLoader.DISPLAY_DEFAULT)
                    .setDefaultDrawable(new ColorDrawable(0xffe0dedc))
                    .into(view);
            final int finalIndex = i;
            view.setTag(i);
            view.setOnClickListener(v -> {
                if (null != mClickListener) {
                    int index = finalIndex + position * itemRowViewCount;
                    mClickListener.onImageClick(index, v);
                }
            });

        }
    }
}
 

static public void setPic(ImageView mImageView, String pPath) {
    try {
        if (pPath == null) return;
        File f = new File(pPath);
        if (!f.exists() || f.isDirectory()) return;

        // Get the dimensions of the View
        int targetW = mImageView.getWidth();
        if (targetW == 0) targetW = mImageView.getMeasuredWidth();
        int targetH = mImageView.getHeight();
        if (targetH == 0) targetH = mImageView.getMeasuredHeight();

        // Get the dimensions of the bitmap
        BitmapFactory.Options bmOptions = new BitmapFactory.Options();
        bmOptions.inJustDecodeBounds = true;
        BitmapFactory.decodeFile(pPath, bmOptions);
        int photoW = bmOptions.outWidth;
        int photoH = bmOptions.outHeight;

        // Determine how much to scale down the image
        int scaleFactor = photoW / targetW; //Math.min(photoW/targetW, photoH/targetH);

        // Decode the image file into a Bitmap sized to fill the View
        bmOptions.inJustDecodeBounds = false;
        bmOptions.inSampleSize = scaleFactor;
        bmOptions.inPurgeable = true;

        Bitmap bitmap = BitmapFactory.decodeFile(pPath, bmOptions);
        Bitmap orientedBitmap = ExifUtil.rotateBitmap(pPath, bitmap);
        mImageView.setImageBitmap(orientedBitmap);

        //mImageView.setLayoutParams(new LinearLayout.LayoutParams(LinearLayout.LayoutParams.MATCH_PARENT, LinearLayout.LayoutParams.WRAP_CONTENT));
        mImageView.setAdjustViewBounds(true);
        mImageView.setScaleType(ImageView.ScaleType.CENTER_CROP);
    } catch (Exception e) {
        e.printStackTrace();
    }
}
 

/**
 * 通过jni进行图片模糊，均值模糊算法
 * @param bkg       需要模糊的bitmap
 * @param radius    模糊半径
 * @param view      显示模糊图片的ImageView
 * @return          消耗时间,单位毫秒（ms）
 */
public static long blurByJni_box(Bitmap bkg, int radius, ImageView view) {
    long startMs = System.currentTimeMillis();
    float scaleFactor = 8;
    int width = (int)(view.getMeasuredWidth()/scaleFactor);
    int height = (int)(view.getMeasuredHeight()/scaleFactor);


    Bitmap overlay = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888);
    Canvas canvas = new Canvas(overlay);
    canvas.scale(1 / scaleFactor, 1 / scaleFactor);
    Paint paint = new Paint();
    paint.setFlags(Paint.FILTER_BITMAP_FLAG);
    canvas.drawBitmap(bkg, 0, 0, paint);

    int[] pixels = new int[width*height];
    overlay.getPixels(pixels, 0, width, 0, 0, width, height);

    int[] newPixels = new int[width*height];
    toBoxBlur(pixels, newPixels, radius, width, height);

    overlay.setPixels(newPixels, 0, width, 0, 0, width, height);

    view.setImageBitmap(overlay);

    return System.currentTimeMillis() - startMs;
}
 

/**
 * 通过RenderScript进行图片模糊
 * @param bkg       需要模糊的bitmap
 * @param radius    模糊半径，RenderScript规定范围为[1,25]
 * @param view      显示模糊图片的ImageView
 * @param context   上下文
 * @return          消耗时间,单位毫秒（ms）
 */
@TargetApi(Build.VERSION_CODES.JELLY_BEAN_MR1)
public static long blurByRenderScript(Bitmap bkg,int radius, ImageView view,Context context)
{
    long startMs = System.currentTimeMillis();
    float scaleFactor = 8;

    int width = (int)(view.getMeasuredWidth()/scaleFactor);
    int height = (int)(view.getMeasuredHeight()/scaleFactor);

    Bitmap overlay = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888);
    Canvas canvas = new Canvas(overlay);
    canvas.scale(1 / scaleFactor, 1 / scaleFactor);
    Paint paint = new Paint();
    paint.setFlags(Paint.FILTER_BITMAP_FLAG);
    canvas.drawBitmap(bkg, 0, 0, paint);

    RenderScript rs = RenderScript.create(context);

    Allocation overlayAlloc = Allocation.createFromBitmap(rs, overlay);
    ScriptIntrinsicBlur blur = ScriptIntrinsicBlur.create(rs, overlayAlloc.getElement());
    blur.setInput(overlayAlloc);
    blur.setRadius(radius);
    blur.forEach(overlayAlloc);
    overlayAlloc.copyTo(overlay);

    view.setImageBitmap(overlay);

    rs.destroy();

    return System.currentTimeMillis() - startMs;
}
 

@Override
public void onImageReady(final File bitmapSourceFile, final BoxRequest request, final Bitmap bitmap, final ImageView view) {
    if (bitmap == null || bitmapSourceFile == null || view == null){
        ViewData.getImageLoadListener(view).onError();
        return;
    }
    if(TYPE_REPRESENTATION.equals(ViewData.getImageType(view))) {
        // No resizing for representation images
        mController.getThumbnailCache().put(bitmapSourceFile, bitmap);
    } else {
        if (view.getMeasuredWidth() > 0 && view.getMeasuredHeight() > 0) {
            Bitmap resizedBitmap = ThumbnailUtils.extractThumbnail(bitmap, view.getMeasuredWidth(), view.getMeasuredHeight());
            mController.getThumbnailCache().put(bitmapSourceFile, resizedBitmap);
            if (resizedBitmap != bitmap) {
                bitmap.recycle();
            }
        } else {
            postLaterToView(bitmapSourceFile, request, bitmap, view);
            return;

        }
    }
    Bitmap scaledBitmap = mController.getThumbnailCache().get(bitmapSourceFile);
    if (scaledBitmap != null && isRequestStillApplicable(request, view)){
        loadThumbnail(scaledBitmap, view);
    }
}
 

@Override
protected void onPreExecute() {
    super.onPreExecute();

    final ImageView imageView = imageViewReference.get();
    if (imageView != null) {
        w = imageView.getMeasuredWidth();
        h = imageView.getMeasuredHeight();
    }
}
 

private void setImageDrawable(final ImageView imageView, Bitmap bitmap, final JobOptions options, final LoadedFrom loadedFrom) {
    final int targetWidth = imageView.getMeasuredWidth();
    final int targetHeight = imageView.getMeasuredHeight();
    if (targetWidth != 0 && targetHeight != 0) {
        options.requestedWidth = targetWidth;
        options.requestedHeight = targetHeight;
    }

    // Process the transformed (smaller) image
    final BitmapProcessor processor = new BitmapProcessor(imageManager.getContext());
    Bitmap processedBitmap = null;

    if (options.roundedCorners)
        processedBitmap = processor.getRoundedCorners(bitmap, options.radius);
    else if (options.circle)
        processedBitmap = processor.getCircle(bitmap);

    if (processedBitmap != null)
        bitmap = processedBitmap;

    final Bitmap finalBitmap = bitmap;

    uiHandler.post(new Runnable() {
        @Override
        public void run() {
            CacheableDrawable.setBitmap(imageView, imageManager.getContext(), finalBitmap, loadedFrom, !options.fadeIn, true);

            final ImageViewCallback imageViewCallback = imageManager.getImageViewCallback();

            if (imageViewCallback != null)
                imageViewCallback.onImageLoaded(imageView, finalBitmap);
        }
    });
}
 

private static void findImageViewInViewTree(View curNode,List<ImageViewInfo> imageList) {

        if (curNode.getVisibility() != View.VISIBLE) {
            return ;
        }
        if (curNode instanceof ViewGroup) {
            ViewGroup curNodeGroup = (ViewGroup) curNode;
            for (int i = 0; i < curNodeGroup.getChildCount(); i++) {
                findImageViewInViewTree(curNodeGroup.getChildAt(i),imageList);
            }
        } else {
            if (curNode instanceof ImageView) {
                ImageViewInfo imageViewInfo = new ImageViewInfo();
                ImageView curImage = (ImageView) curNode;
                Drawable drawable = curImage.getDrawable();
                if (drawable instanceof BitmapDrawable) {
                    Bitmap bitmap = ((BitmapDrawable) drawable).getBitmap();
                    imageViewInfo.imageHeight = bitmap.getHeight();
                    imageViewInfo.imageWidth = bitmap.getWidth();
                    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT) {     //API 19
                        imageViewInfo.imageSize = bitmap.getAllocationByteCount();
                    } else if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB_MR1) {//API 12
                        imageViewInfo.imageSize = bitmap.getByteCount();
                    } else {
                        imageViewInfo.imageSize = bitmap.getRowBytes() * bitmap.getHeight();
                    }

                    if(bitmap.getHeight() * bitmap.getWidth() > curImage.getMeasuredHeight() * curImage.getMeasuredWidth()){
                        imageViewInfo.imgViewInfo = MyUtil.printImageView(curImage);
                        imageList.add(imageViewInfo);
                    }

                }else {
                    imageViewInfo.imageHeight = drawable.getIntrinsicHeight();
                    imageViewInfo.imageWidth = drawable.getIntrinsicWidth();
                    if(imageViewInfo.imageHeight * imageViewInfo.imageWidth > curImage.getMeasuredHeight() * curImage.getMeasuredWidth()){
                        imageViewInfo.imgViewInfo = MyUtil.printImageView(curImage);
                        imageList.add(imageViewInfo);
                    }
                }

            }
        }
        return ;
    }
 

/**
 * Loads the thumbnail for the provided BoxItem (if available) into the target image view
 *
 * @param item        the item
 * @param targetImage the target image
 */
public void loadThumbnail(final BoxItem item, final ImageView targetImage) {
    boolean isMediaType = TYPE_MEDIA.equals(ViewData.getImageType(targetImage));
    targetImage.setScaleType(ImageView.ScaleType.FIT_CENTER);
    if (item instanceof BoxFile
            && item.getPermissions() != null
            && item.getPermissions().contains(BoxItem.Permission.CAN_PREVIEW)
            && isThumbnailAvailable(item)) {

        // Cancel pending task upon recycle.
        BoxFutureTask task = mTargetToTask.remove(targetImage);
        if (task != null) {
            task.cancel(false);
        }

        File thumbnailFile = getThumbnailForBoxFile((BoxFile) item);
        if (mController.getThumbnailCache() != null && mController.getThumbnailCache().get(thumbnailFile) != null){
            Bitmap bm = mController.getThumbnailCache().get(thumbnailFile);
            targetImage.setImageBitmap(mController.getThumbnailCache().get(thumbnailFile));
            return;
        }

        Bitmap placeHolderBitmap = null;
        if (! isMediaType) {
            int iconResId = getDefaultIconResource(item);
            if (mController.getIconResourceCache() != null) {
                placeHolderBitmap = mController.getIconResourceCache().get(iconResId);
            }
            if (placeHolderBitmap == null) {
                if (targetImage.getMeasuredWidth() > 0 && targetImage.getMeasuredHeight() > 0) {
                    placeHolderBitmap = SdkUtils.decodeSampledBitmapFromFile(targetImage.getResources(), iconResId, targetImage.getMeasuredWidth(), targetImage.getMeasuredHeight());
                } else {
                    placeHolderBitmap = BitmapFactory.decodeResource(targetImage.getResources(), iconResId);
                }
                if (mController.getIconResourceCache() != null) {
                    mController.getIconResourceCache().put(iconResId, placeHolderBitmap);
                }
            }
        }

        // Set the drawable to our loader drawable, which will show a placeholder before loading the thumbnail into the view
        BoxRequestsFile.DownloadThumbnail request = mController.getThumbnailRequest(item.getId(), thumbnailFile);
        LoaderDrawable loaderDrawable = LoaderDrawable.create(request, item, targetImage, placeHolderBitmap, this);
        targetImage.setImageDrawable(loaderDrawable);
        BoxFutureTask thumbnailTask = loaderDrawable.getTask();
        if (thumbnailTask != null) {
            mTargetToTask.put(targetImage, thumbnailTask);
            mController.getThumbnailExecutor().execute(thumbnailTask);
        }
    } else {
        if (!isMediaType) {
            targetImage.setImageResource(getDefaultIconResource(item));
        }
    }
}