com.nostra13.universalimageloader.core.assist.ViewScaleType Java Exaples

Source File: ImageDecodingInfo.java From Android-Universal-Image-Loader-Modify with Apache License 2.0

6 votes

public ImageDecodingInfo(String imageKey, String imageUri, String originalImageUri, ImageSize targetSize, ViewScaleType viewScaleType,
						 ImageDownloader downloader, DisplayImageOptions displayOptions) {
	this.imageKey = imageKey;
	this.imageUri = imageUri;
	this.originalImageUri = originalImageUri;
	this.targetSize = targetSize;

	this.imageScaleType = displayOptions.getImageScaleType();
	this.viewScaleType = viewScaleType;

	this.downloader = downloader;
	this.extraForDownloader = displayOptions.getExtraForDownloader();

	considerExifParams = displayOptions.isConsiderExifParams();
	decodingOptions = new Options();
	copyOptions(displayOptions.getDecodingOptions(), decodingOptions);
}

Source File: ImageDecodingInfo.java From candybar with Apache License 2.0

6 votes

public ImageDecodingInfo(String imageKey, String imageUri, String originalImageUri, ImageSize targetSize, ViewScaleType viewScaleType,
                         ImageDownloader downloader, DisplayImageOptions displayOptions) {
    this.imageKey = imageKey;
    this.imageUri = imageUri;
    this.originalImageUri = originalImageUri;
    this.targetSize = targetSize;

    this.imageScaleType = displayOptions.getImageScaleType();
    this.viewScaleType = viewScaleType;

    this.downloader = downloader;
    this.extraForDownloader = displayOptions.getExtraForDownloader();

    considerExifParams = displayOptions.isConsiderExifParams();
    decodingOptions = new Options();
    copyOptions(displayOptions.getDecodingOptions(), decodingOptions);
}

Source File: ImageDecodingInfo.java From WliveTV with Apache License 2.0

6 votes

public ImageDecodingInfo(String imageKey, String imageUri, String originalImageUri, ImageSize targetSize, ViewScaleType viewScaleType,
						 ImageDownloader downloader, DisplayImageOptions displayOptions) {
	this.imageKey = imageKey;
	this.imageUri = imageUri;
	this.originalImageUri = originalImageUri;
	this.targetSize = targetSize;

	this.imageScaleType = displayOptions.getImageScaleType();
	this.viewScaleType = viewScaleType;

	this.downloader = downloader;
	this.extraForDownloader = displayOptions.getExtraForDownloader();

	considerExifParams = displayOptions.isConsiderExifParams();
	decodingOptions = new Options();
	copyOptions(displayOptions.getDecodingOptions(), decodingOptions);
}

Source File: ImageDecodingInfo.java From mobile-manager-tool with MIT License

6 votes

public ImageDecodingInfo(String imageKey, String imageUri, String originalImageUri, ImageSize targetSize, ViewScaleType viewScaleType,
						 ImageDownloader downloader, DisplayImageOptions displayOptions) {
	this.imageKey = imageKey;
	this.imageUri = imageUri;
	this.originalImageUri = originalImageUri;
	this.targetSize = targetSize;

	this.imageScaleType = displayOptions.getImageScaleType();
	this.viewScaleType = viewScaleType;

	this.downloader = downloader;
	this.extraForDownloader = displayOptions.getExtraForDownloader();

	considerExifParams = displayOptions.isConsiderExifParams();
	decodingOptions = new Options();
	copyOptions(displayOptions.getDecodingOptions(), decodingOptions);
}

Source File: NonViewAware.java From MiBandDecompiled with Apache License 2.0

6 votes

public NonViewAware(String s, ImageSize imagesize, ViewScaleType viewscaletype)
{
    if (imagesize == null)
    {
        throw new IllegalArgumentException("imageSize must not be null");
    }
    if (viewscaletype == null)
    {
        throw new IllegalArgumentException("scaleType must not be null");
    } else
    {
        imageUri = s;
        imageSize = imagesize;
        scaleType = viewscaletype;
        return;
    }
}

Source File: LoadAndDisplayImageTask.java From letv with Apache License 2.0

6 votes

private boolean resizeAndSaveImage(int maxWidth, int maxHeight) throws IOException {
    File targetFile = this.configuration.diskCache.get(this.uri);
    if (targetFile == null || !targetFile.exists()) {
        return false;
    }
    Bitmap bmp = this.decoder.decode(new ImageDecodingInfo(this.memoryCacheKey, Scheme.FILE.wrap(targetFile.getAbsolutePath()), this.uri, new ImageSize(maxWidth, maxHeight), ViewScaleType.FIT_INSIDE, getDownloader(), new Builder().cloneFrom(this.options).imageScaleType(ImageScaleType.IN_SAMPLE_INT).build()));
    if (!(bmp == null || this.configuration.processorForDiskCache == null)) {
        L.d(LOG_PROCESS_IMAGE_BEFORE_CACHE_ON_DISK, this.memoryCacheKey);
        bmp = this.configuration.processorForDiskCache.process(bmp);
        if (bmp == null) {
            L.e(ERROR_PROCESSOR_FOR_DISK_CACHE_NULL, this.memoryCacheKey);
        }
    }
    if (bmp == null) {
        return false;
    }
    boolean saved = this.configuration.diskCache.save(this.uri, bmp);
    bmp.recycle();
    return saved;
}

Source File: ImageLoader.java From MiBandDecompiled with Apache License 2.0

6 votes

public void loadImage(String s, ImageSize imagesize, DisplayImageOptions displayimageoptions, ImageLoadingListener imageloadinglistener, ImageLoadingProgressListener imageloadingprogresslistener)
{
    a();
    if (imagesize == null)
    {
        imagesize = h.a();
    }
    DisplayImageOptions displayimageoptions1;
    if (displayimageoptions == null)
    {
        displayimageoptions1 = h.r;
    } else
    {
        displayimageoptions1 = displayimageoptions;
    }
    displayImage(s, new NonViewAware(s, imagesize, ViewScaleType.CROP), displayimageoptions1, imageloadinglistener, imageloadingprogresslistener);
}

Source File: ImageSizeUtils.java From letv with Apache License 2.0

6 votes

public static float computeImageScale(ImageSize srcSize, ImageSize targetSize, ViewScaleType viewScaleType, boolean stretch) {
    int destWidth;
    int srcWidth = srcSize.getWidth();
    int srcHeight = srcSize.getHeight();
    int targetWidth = targetSize.getWidth();
    int targetHeight = targetSize.getHeight();
    float widthScale = ((float) srcWidth) / ((float) targetWidth);
    float heightScale = ((float) srcHeight) / ((float) targetHeight);
    int destHeight;
    if ((viewScaleType != ViewScaleType.FIT_INSIDE || widthScale < heightScale) && (viewScaleType != ViewScaleType.CROP || widthScale >= heightScale)) {
        destWidth = (int) (((float) srcWidth) / heightScale);
        destHeight = targetHeight;
    } else {
        destWidth = targetWidth;
        destHeight = (int) (((float) srcHeight) / widthScale);
    }
    if ((stretch || destWidth >= srcWidth || destHeight >= srcHeight) && (!stretch || destWidth == srcWidth || destHeight == srcHeight)) {
        return 1.0f;
    }
    return ((float) destWidth) / ((float) srcWidth);
}

Source File: ImageDecodingInfo.java From BigApp_WordPress_Android with Apache License 2.0

6 votes

public ImageDecodingInfo(String imageKey, String imageUri, String originalImageUri, ImageSize targetSize, ViewScaleType viewScaleType,
						 ImageDownloader downloader, DisplayImageOptions displayOptions) {
	this.imageKey = imageKey;
	this.imageUri = imageUri;
	this.originalImageUri = originalImageUri;
	this.targetSize = targetSize;

	this.imageScaleType = displayOptions.getImageScaleType();
	this.viewScaleType = viewScaleType;

	this.downloader = downloader;
	this.extraForDownloader = displayOptions.getExtraForDownloader();

	considerExifParams = displayOptions.isConsiderExifParams();
	decodingOptions = new Options();
	copyOptions(displayOptions.getDecodingOptions(), decodingOptions);
}

Source File: ImageViewAware.java From BigApp_WordPress_Android with Apache License 2.0

5 votes

@Override
public ViewScaleType getScaleType() {
	ImageView imageView = (ImageView) viewRef.get();
	if (imageView != null) {
		return ViewScaleType.fromImageView(imageView);
	}
	return super.getScaleType();
}

Source File: ImageLoader.java From letv with Apache License 2.0

5 votes

public void loadImage(String uri, ImageSize targetImageSize, DisplayImageOptions options, ImageLoadingListener listener, ImageLoadingProgressListener progressListener) {
    checkConfiguration();
    if (targetImageSize == null) {
        targetImageSize = this.configuration.getMaxImageSize();
    }
    if (options == null) {
        options = this.configuration.defaultDisplayImageOptions;
    }
    displayImage(uri, new NonViewAware(uri, targetImageSize, ViewScaleType.CROP), options, listener, progressListener);
}

Source File: NonViewAware.java From android-open-project-demo with Apache License 2.0

5 votes

public NonViewAware(String imageUri, ImageSize imageSize, ViewScaleType scaleType) {
	if (imageSize == null) throw new IllegalArgumentException("imageSize must not be null");
	if (scaleType == null) throw new IllegalArgumentException("scaleType must not be null");

	this.imageUri = imageUri;
	this.imageSize = imageSize;
	this.scaleType = scaleType;
}

Source File: LoadAndDisplayImageTask.java From BigApp_WordPress_Android with Apache License 2.0

5 votes

/** Decodes image file into Bitmap, resize it and save it back */
private boolean resizeAndSaveImage(int maxWidth, int maxHeight) throws IOException {
	// Decode image file, compress and re-save it
	boolean saved = false;
	File targetFile = configuration.diskCache.get(uri);
	if (targetFile != null && targetFile.exists()) {
		ImageSize targetImageSize = new ImageSize(maxWidth, maxHeight);
		DisplayImageOptions specialOptions = new DisplayImageOptions.Builder().cloneFrom(options)
				.imageScaleType(ImageScaleType.IN_SAMPLE_INT).build();
		ImageDecodingInfo decodingInfo = new ImageDecodingInfo(memoryCacheKey,
				Scheme.FILE.wrap(targetFile.getAbsolutePath()), uri, targetImageSize, ViewScaleType.FIT_INSIDE,
				getDownloader(), specialOptions);
		Bitmap bmp = decoder.decode(decodingInfo);
		if (bmp != null && configuration.processorForDiskCache != null) {
			L.d(LOG_PROCESS_IMAGE_BEFORE_CACHE_ON_DISK, memoryCacheKey);
			bmp = configuration.processorForDiskCache.process(bmp);
			if (bmp == null) {
				L.e(ERROR_PROCESSOR_FOR_DISK_CACHE_NULL, memoryCacheKey);
			}
		}
		if (bmp != null) {
			saved = configuration.diskCache.save(uri, bmp);
			bmp.recycle();
		}
	}
	return saved;
}

Source File: ImageSizeUtils.java From BigApp_WordPress_Android with Apache License 2.0

5 votes

/**
 * Computes scale of target size (<b>targetSize</b>) to source size (<b>srcSize</b>).<br />
 * <br />
 * <b>Examples:</b><br />
 * <p/>
 * <pre>
 * srcSize(40x40), targetSize(10x10) -> scale = 0.25
 *
 * srcSize(10x10), targetSize(20x20), stretch = false -> scale = 1
 * srcSize(10x10), targetSize(20x20), stretch = true  -> scale = 2
 *
 * srcSize(100x100), targetSize(20x40), viewScaleType = FIT_INSIDE -> scale = 0.2
 * srcSize(100x100), targetSize(20x40), viewScaleType = CROP       -> scale = 0.4
 * </pre>
 *
 * @param srcSize       Source (image) size
 * @param targetSize    Target (view) size
 * @param viewScaleType {@linkplain ViewScaleType Scale type} for placing image in view
 * @param stretch       Whether source size should be stretched if target size is larger than source size. If <b>false</b>
 *                      then result scale value can't be greater than 1.
 * @return Computed scale
 */
public static float computeImageScale(ImageSize srcSize, ImageSize targetSize, ViewScaleType viewScaleType,
		boolean stretch) {
	final int srcWidth = srcSize.getWidth();
	final int srcHeight = srcSize.getHeight();
	final int targetWidth = targetSize.getWidth();
	final int targetHeight = targetSize.getHeight();

	final float widthScale = (float) srcWidth / targetWidth;
	final float heightScale = (float) srcHeight / targetHeight;

	final int destWidth;
	final int destHeight;
	if ((viewScaleType == ViewScaleType.FIT_INSIDE && widthScale >= heightScale) || (viewScaleType == ViewScaleType.CROP && widthScale < heightScale)) {
		destWidth = targetWidth;
		destHeight = (int) (srcHeight / widthScale);
	} else {
		destWidth = (int) (srcWidth / heightScale);
		destHeight = targetHeight;
	}

	float scale = 1;
	if ((!stretch && destWidth < srcWidth && destHeight < srcHeight) || (stretch && destWidth != srcWidth && destHeight != srcHeight)) {
		scale = (float) destWidth / srcWidth;
	}

	return scale;
}

Source File: NonViewAware.java From mobile-manager-tool with MIT License

5 votes

public NonViewAware(String imageUri, ImageSize imageSize, ViewScaleType scaleType) {
	if (imageSize == null) throw new IllegalArgumentException("imageSize must not be null");
	if (scaleType == null) throw new IllegalArgumentException("scaleType must not be null");

	this.imageUri = imageUri;
	this.imageSize = imageSize;
	this.scaleType = scaleType;
}

Source File: ImageViewAware.java From mobile-manager-tool with MIT License

5 votes

@Override
public ViewScaleType getScaleType() {
	ImageView imageView = (ImageView) viewRef.get();
	if (imageView != null) {
		return ViewScaleType.fromImageView(imageView);
	}
	return super.getScaleType();
}

Source File: NonViewAware.java From letv with Apache License 2.0

5 votes

public NonViewAware(String imageUri, ImageSize imageSize, ViewScaleType scaleType) {
    if (imageSize == null) {
        throw new IllegalArgumentException("imageSize must not be null");
    } else if (scaleType == null) {
        throw new IllegalArgumentException("scaleType must not be null");
    } else {
        this.imageUri = imageUri;
        this.imageSize = imageSize;
        this.scaleType = scaleType;
    }
}

Source File: NonViewAware.java From candybar with Apache License 2.0

5 votes

public NonViewAware(String imageUri, ImageSize imageSize, ViewScaleType scaleType) {
    if (imageSize == null) throw new IllegalArgumentException("imageSize must not be null");
    if (scaleType == null) throw new IllegalArgumentException("scaleType must not be null");

    this.imageUri = imageUri;
    this.imageSize = imageSize;
    this.scaleType = scaleType;
}

Source File: ImageLoader.java From Android-Universal-Image-Loader-Modify with Apache License 2.0

5 votes

/**
 * 添加图片加载任务到执行线程池中。图片会通过回调方法返回
 * @param uri                 图片URL地址
 * @param targetImageSize     期望目标图片大小尺寸
 * @param options             图片配置项
 * @param listener            图片加载监听器
 * @param progressListener    图片下载进度监听器
 */
public void loadImage(String uri, ImageSize targetImageSize, DisplayImageOptions options,
		ImageLoadingListener listener, ImageLoadingProgressListener progressListener) {
	checkConfiguration();
	if (targetImageSize == null) {
		targetImageSize = configuration.getMaxImageSize();
	}
	if (options == null) {
		options = configuration.defaultDisplayImageOptions;
	}

	NonViewAware imageAware = new NonViewAware(uri, targetImageSize, ViewScaleType.CROP);
	displayImage(uri, imageAware, options, listener, progressListener);
}

Source File: NonViewAware.java From BigApp_WordPress_Android with Apache License 2.0

5 votes

public NonViewAware(String imageUri, ImageSize imageSize, ViewScaleType scaleType) {
	if (imageSize == null) throw new IllegalArgumentException("imageSize must not be null");
	if (scaleType == null) throw new IllegalArgumentException("scaleType must not be null");

	this.imageUri = imageUri;
	this.imageSize = imageSize;
	this.scaleType = scaleType;
}

Source File: ImageSizeUtils.java From android-open-project-demo with Apache License 2.0

5 votes

/**
 * Computes scale of target size (<b>targetSize</b>) to source size (<b>srcSize</b>).<br />
 * <br />
 * <b>Examples:</b><br />
 * <p/>
 * <pre>
 * srcSize(40x40), targetSize(10x10) -> scale = 0.25
 *
 * srcSize(10x10), targetSize(20x20), stretch = false -> scale = 1
 * srcSize(10x10), targetSize(20x20), stretch = true  -> scale = 2
 *
 * srcSize(100x100), targetSize(20x40), viewScaleType = FIT_INSIDE -> scale = 0.2
 * srcSize(100x100), targetSize(20x40), viewScaleType = CROP       -> scale = 0.4
 * </pre>
 *
 * @param srcSize       Source (image) size
 * @param targetSize    Target (view) size
 * @param viewScaleType {@linkplain ViewScaleType Scale type} for placing image in view
 * @param stretch       Whether source size should be stretched if target size is larger than source size. If <b>false</b>
 *                      then result scale value can't be greater than 1.
 * @return Computed scale
 */
public static float computeImageScale(ImageSize srcSize, ImageSize targetSize, ViewScaleType viewScaleType,
		boolean stretch) {
	final int srcWidth = srcSize.getWidth();
	final int srcHeight = srcSize.getHeight();
	final int targetWidth = targetSize.getWidth();
	final int targetHeight = targetSize.getHeight();

	final float widthScale = (float) srcWidth / targetWidth;
	final float heightScale = (float) srcHeight / targetHeight;

	final int destWidth;
	final int destHeight;
	if ((viewScaleType == ViewScaleType.FIT_INSIDE && widthScale >= heightScale) || (viewScaleType == ViewScaleType.CROP && widthScale < heightScale)) {
		destWidth = targetWidth;
		destHeight = (int) (srcHeight / widthScale);
	} else {
		destWidth = (int) (srcWidth / heightScale);
		destHeight = targetHeight;
	}

	float scale = 1;
	if ((!stretch && destWidth < srcWidth && destHeight < srcHeight) || (stretch && destWidth != srcWidth && destHeight != srcHeight)) {
		scale = (float) destWidth / srcWidth;
	}

	return scale;
}

Source File: ImageViewAware.java From WliveTV with Apache License 2.0

5 votes

@Override
public ViewScaleType getScaleType() {
	ImageView imageView = (ImageView) viewRef.get();
	if (imageView != null) {
		return ViewScaleType.fromImageView(imageView);
	}
	return super.getScaleType();
}

Source File: NonViewAware.java From WliveTV with Apache License 2.0

5 votes

public NonViewAware(String imageUri, ImageSize imageSize, ViewScaleType scaleType) {
	if (imageSize == null) throw new IllegalArgumentException("imageSize must not be null");
	if (scaleType == null) throw new IllegalArgumentException("scaleType must not be null");

	this.imageUri = imageUri;
	this.imageSize = imageSize;
	this.scaleType = scaleType;
}

Source File: ImageSizeUtils.java From MiBandDecompiled with Apache License 2.0

5 votes

public static float computeImageScale(ImageSize imagesize, ImageSize imagesize1, ViewScaleType viewscaletype, boolean flag)
{
    int i = imagesize.getWidth();
    int j = imagesize.getHeight();
    int k = imagesize1.getWidth();
    int l = imagesize1.getHeight();
    float f = (float)i / (float)k;
    float f1 = (float)j / (float)l;
    int i1;
    int j1;
    float f2;
    if (viewscaletype == ViewScaleType.FIT_INSIDE && f >= f1 || viewscaletype == ViewScaleType.CROP && f < f1)
    {
        int k1 = (int)((float)j / f);
        i1 = k;
        j1 = k1;
    } else
    {
        i1 = (int)((float)i / f1);
        j1 = l;
    }
    f2 = 1.0F;
    if (!flag && i1 < i && j1 < j || flag && i1 != i && j1 != j)
    {
        f2 = (float)i1 / (float)i;
    }
    return f2;
}

Source File: ImageDecodingInfo.java From MiBandDecompiled with Apache License 2.0

5 votes

public ImageDecodingInfo(String s, String s1, String s2, ImageSize imagesize, ViewScaleType viewscaletype, ImageDownloader imagedownloader, DisplayImageOptions displayimageoptions)
{
    a = s;
    b = s1;
    c = s2;
    d = imagesize;
    e = displayimageoptions.getImageScaleType();
    f = viewscaletype;
    g = imagedownloader;
    h = displayimageoptions.getExtraForDownloader();
    i = displayimageoptions.isConsiderExifParams();
    a(displayimageoptions.getDecodingOptions(), j);
}

Source File: ImageViewAware.java From MiBandDecompiled with Apache License 2.0

5 votes

public ViewScaleType getScaleType()
{
    ImageView imageview = (ImageView)viewRef.get();
    if (imageview != null)
    {
        return ViewScaleType.fromImageView(imageview);
    } else
    {
        return super.getScaleType();
    }
}

Source File: ImageSizeUtils.java From Android-Universal-Image-Loader-Modify with Apache License 2.0

5 votes

/**
 * Computes scale of target size (<b>targetSize</b>) to source size (<b>srcSize</b>).<br />
 * <br />
 * <b>Examples:</b><br />
 * <p/>
 * <pre>
 * srcSize(40x40), targetSize(10x10) -> scale = 0.25
 *
 * srcSize(10x10), targetSize(20x20), stretch = false -> scale = 1
 * srcSize(10x10), targetSize(20x20), stretch = true  -> scale = 2
 *
 * srcSize(100x100), targetSize(20x40), viewScaleType = FIT_INSIDE -> scale = 0.2
 * srcSize(100x100), targetSize(20x40), viewScaleType = CROP       -> scale = 0.4
 * </pre>
 *
 * @param srcSize       Source (image) size
 * @param targetSize    Target (view) size
 * @param viewScaleType {@linkplain ViewScaleType Scale type} for placing image in view
 * @param stretch       Whether source size should be stretched if target size is larger than source size. If <b>false</b>
 *                      then result scale value can't be greater than 1.
 * @return Computed scale
 */
public static float computeImageScale(ImageSize srcSize, ImageSize targetSize, ViewScaleType viewScaleType,
		boolean stretch) {
	final int srcWidth = srcSize.getWidth();
	final int srcHeight = srcSize.getHeight();
	final int targetWidth = targetSize.getWidth();
	final int targetHeight = targetSize.getHeight();

	final float widthScale = (float) srcWidth / targetWidth;
	final float heightScale = (float) srcHeight / targetHeight;

	final int destWidth;
	final int destHeight;
	if ((viewScaleType == ViewScaleType.FIT_INSIDE && widthScale >= heightScale) || (viewScaleType == ViewScaleType.CROP && widthScale < heightScale)) {
		destWidth = targetWidth;
		destHeight = (int) (srcHeight / widthScale);
	} else {
		destWidth = (int) (srcWidth / heightScale);
		destHeight = targetHeight;
	}

	float scale = 1;
	if ((!stretch && destWidth < srcWidth && destHeight < srcHeight) || (stretch && destWidth != srcWidth && destHeight != srcHeight)) {
		scale = (float) destWidth / srcWidth;
	}

	return scale;
}

Source File: LoadAndDisplayImageTask.java From Android-Universal-Image-Loader-Modify with Apache License 2.0

5 votes

/**
 * 根据图片资源地址进行解码图片
 * @param imageUri   图片资源地址
 * @return
 * @throws IOException
 */
private Bitmap decodeImage(String imageUri) throws IOException {
	ViewScaleType viewScaleType = imageAware.getScaleType();
	ImageDecodingInfo decodingInfo = new ImageDecodingInfo(memoryCacheKey, imageUri, uri, targetSize, viewScaleType,
			getDownloader(), options);
	return decoder.decode(decodingInfo);
}

Source File: LoadAndDisplayImageTask.java From Android-Universal-Image-Loader-Modify with Apache License 2.0

5 votes

/**
 * Decodes image file into Bitmap, resize it and save it back
 * 解码图片 进行图片尺寸修改，然后保存
 */
private boolean resizeAndSaveImage(int maxWidth, int maxHeight) throws IOException {
	// Decode image file, compress and re-save it
	boolean saved = false;
	File targetFile = configuration.diskCache.get(uri);
	if (targetFile != null && targetFile.exists()) {
		//构建图片尺寸size对象
		ImageSize targetImageSize = new ImageSize(maxWidth, maxHeight);
		//图片显示配置参数构建
		DisplayImageOptions specialOptions = new DisplayImageOptions.Builder().cloneFrom(options)
				.imageScaleType(ImageScaleType.IN_SAMPLE_INT).build();
		ImageDecodingInfo decodingInfo = new ImageDecodingInfo(memoryCacheKey,
				Scheme.FILE.wrap(targetFile.getAbsolutePath()), uri, targetImageSize, ViewScaleType.FIT_INSIDE,
				getDownloader(), specialOptions);
		//获取解码之后的图片
		Bitmap bmp = decoder.decode(decodingInfo);
		if (bmp != null && configuration.processorForDiskCache != null) {
			L.d(LOG_PROCESS_IMAGE_BEFORE_CACHE_ON_DISK, memoryCacheKey);
			bmp = configuration.processorForDiskCache.process(bmp);
			if (bmp == null) {
				L.e(ERROR_PROCESSOR_FOR_DISK_CACHE_NULL, memoryCacheKey);
			}
		}
		if (bmp != null) {
			//图片重新保存本地文件系统
			saved = configuration.diskCache.save(uri, bmp);
			bmp.recycle();
		}
	}
	return saved;
}

Source File: ImageSizeUtils.java From candybar with Apache License 2.0

5 votes

/**
 * Computes scale of target size (<b>targetSize</b>) to source size (<b>srcSize</b>).<br />
 * <br />
 * <b>Examples:</b><br />
 * <p/>
 * <pre>
 * srcSize(40x40), targetSize(10x10) -> scale = 0.25
 *
 * srcSize(10x10), targetSize(20x20), stretch = false -> scale = 1
 * srcSize(10x10), targetSize(20x20), stretch = true  -> scale = 2
 *
 * srcSize(100x100), targetSize(20x40), viewScaleType = FIT_INSIDE -> scale = 0.2
 * srcSize(100x100), targetSize(20x40), viewScaleType = CROP       -> scale = 0.4
 * </pre>
 *
 * @param srcSize       Source (image) size
 * @param targetSize    Target (view) size
 * @param viewScaleType {@linkplain ViewScaleType Scale type} for placing image in view
 * @param stretch       Whether source size should be stretched if target size is larger than source size. If <b>false</b>
 *                      then result scale value can't be greater than 1.
 * @return Computed scale
 */
public static float computeImageScale(ImageSize srcSize, ImageSize targetSize, ViewScaleType viewScaleType,
                                      boolean stretch) {
    final int srcWidth = srcSize.getWidth();
    final int srcHeight = srcSize.getHeight();
    final int targetWidth = targetSize.getWidth();
    final int targetHeight = targetSize.getHeight();

    final float widthScale = (float) srcWidth / targetWidth;
    final float heightScale = (float) srcHeight / targetHeight;

    final int destWidth;
    final int destHeight;
    if ((viewScaleType == ViewScaleType.FIT_INSIDE && widthScale >= heightScale) || (viewScaleType == ViewScaleType.CROP && widthScale < heightScale)) {
        destWidth = targetWidth;
        destHeight = (int) (srcHeight / widthScale);
    } else {
        destWidth = (int) (srcWidth / heightScale);
        destHeight = targetHeight;
    }

    float scale = 1;
    if ((!stretch && destWidth < srcWidth && destHeight < srcHeight) || (stretch && destWidth != srcWidth && destHeight != srcHeight)) {
        scale = (float) destWidth / srcWidth;
    }

    return scale;
}

com.nostra13.universalimageloader.core.assist.ViewScaleType Java Examples