本文整理汇总了Java中android.graphics.Bitmap.setDensity方法的典型用法代码示例。如果您正苦于以下问题:Java Bitmap.setDensity方法的具体用法?Java Bitmap.setDensity怎么用?Java Bitmap.setDensity使用的例子?那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类android.graphics.Bitmap
的用法示例。
在下文中一共展示了Bitmap.setDensity方法的11个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于系统推荐出更棒的Java代码示例。
示例1: toBitmap
import android.graphics.Bitmap; //导入方法依赖的package包/类
public static Bitmap toBitmap(byte[] bytes, int width, int height) {
Bitmap bitmap = null;
if (bytes.length != 0) {
try {
BitmapFactory.Options options = new BitmapFactory.Options();
// 不进行图片抖动处理
options.inDither = false;
// 设置让解码器以最佳方式解码
options.inPreferredConfig = null;
if (width > 0 && height > 0) {
options.outWidth = width;
options.outHeight = height;
}
bitmap = BitmapFactory.decodeByteArray(bytes, 0, bytes.length, options);
bitmap.setDensity(96);// 96 dpi
} catch (Exception e) {
LogUtils.error(e);
}
}
return bitmap;
}
示例2: setDensityFromOptions
import android.graphics.Bitmap; //导入方法依赖的package包/类
private static void setDensityFromOptions(Bitmap outputBitmap, BitmapFactory.Options opts) {
if (outputBitmap == null || opts == null) {
return;
}
final int density = opts.inDensity;
if (density != 0) {
outputBitmap.setDensity(density);
final int targetDensity = opts.inTargetDensity;
if (targetDensity == 0 || density == targetDensity || density == opts.inScreenDensity) {
return;
}
if (opts.inScaled) {
outputBitmap.setDensity(targetDensity);
}
} else if (IN_BITMAP_SUPPORTED && opts.inBitmap != null) {
// bitmap was reused, ensure density is reset
outputBitmap.setDensity(DisplayMetrics.DENSITY_DEFAULT);
}
}
示例3: toBitmap
import android.graphics.Bitmap; //导入方法依赖的package包/类
public static Bitmap toBitmap(byte[] bytes, int width, int height) {
Bitmap bitmap = null;
if (bytes.length != 0) {
try {
BitmapFactory.Options options = new BitmapFactory.Options();
// 不进行图片抖动处理
options.inDither = false;
// 设置让解码器以最佳方式解码
options.inPreferredConfig = null;
if (width > 0 && height > 0) {
options.outWidth = width;
options.outHeight = height;
}
bitmap = BitmapFactory.decodeByteArray(bytes, 0, bytes.length, options);
bitmap.setDensity(96);// 96 dpi
} catch (Exception e) {
// LogUtils.error(e);
}
}
return bitmap;
}
示例4: restoreBitmap
import android.graphics.Bitmap; //导入方法依赖的package包/类
public static Bitmap restoreBitmap(Bitmap src, Matrix matrix, int w, int h) {
Bitmap result = Bitmap.createBitmap(w, h, src.getConfig());
result.setDensity(src.getDensity());
Canvas canvas = new Canvas(result);
float[] data = new float[9];
matrix.getValues(data);// 底部图片变化记录矩阵原始数据
Matrix3 cal = new Matrix3(data);// 辅助矩阵计算类
Matrix3 inverseMatrix = cal.inverseMatrix();// 计算逆矩阵
Matrix m = new Matrix();
m.setValues(inverseMatrix.getValues());
float[] f = new float[9];
m.getValues(f);
int dx = (int) f[Matrix.MTRANS_X];
int dy = (int) f[Matrix.MTRANS_Y];
float scale_x = f[Matrix.MSCALE_X];
float scale_y = f[Matrix.MSCALE_Y];
canvas.save();
canvas.translate(dx, dy);
canvas.scale(scale_x, scale_y);
canvas.drawBitmap(src, 0, 0, null);
canvas.restore();
return result;
}
示例5: createBitmap
import android.graphics.Bitmap; //导入方法依赖的package包/类
private static Bitmap createBitmap(Bitmap source, int width, int height, Config config) {
try {
if (config == null) {
config = Config.ARGB_4444;//不要改成565,要不然一些png图会丢失透明信息。
}
Bitmap target = createBitmap(width, height, config);
target.setDensity(source.getDensity());
Canvas canvas = new Canvas(target);
Paint paint = new Paint();
paint.setDither(true);
paint.setAntiAlias(true);
Rect src = new Rect(0, 0, source.getWidth(), source.getHeight());
Rect dst = new Rect(0, 0, width, height);
canvas.drawBitmap(source, src, dst, paint);
return target;
} catch (OutOfMemoryError e) {
e.printStackTrace();
return source;
}
}
示例6: createBitmap
import android.graphics.Bitmap; //导入方法依赖的package包/类
/**
* Creates a bitmap with the specified width and height. Its initial density is
* determined from the given DisplayMetrics.
*
* @param display Display metrics for the display this bitmap will be drawn on
* @param width The width of the bitmap
* @param height The height of the bitmap
* @param config The bitmap config to create
* @param hasAlpha If the bitmap is ARGB_8888 this flag can be used to mark the bitmap as opaque
* Doing so will clear the bitmap in black instead of transparent
* @param callerContext the Tag to track who create the Bitmap
* @return a reference to the bitmap
* @throws IllegalArgumentException if the width or height are <= 0
* @throws TooManyBitmapsException if the pool is full
* @throws java.lang.OutOfMemoryError if the Bitmap cannot be allocated
*/
private CloseableReference<Bitmap> createBitmap(
DisplayMetrics display,
int width,
int height,
Bitmap.Config config,
boolean hasAlpha,
@Nullable Object callerContext) {
checkWidthHeight(width, height);
CloseableReference<Bitmap> bitmapRef = createBitmapInternal(width, height, config);
Bitmap bitmap = bitmapRef.get();
if (display != null) {
bitmap.setDensity(display.densityDpi);
}
if (Build.VERSION.SDK_INT >= 12) {
bitmap.setHasAlpha(hasAlpha);
}
if (config == Bitmap.Config.ARGB_8888 && !hasAlpha) {
bitmap.eraseColor(0xff000000);
}
addBitmapReference(bitmapRef.get(), callerContext);
return bitmapRef;
}
示例7: flipImage
import android.graphics.Bitmap; //导入方法依赖的package包/类
private Bitmap flipImage(Bitmap src) {
Matrix m = new Matrix();
m.preScale(-1, 1);
Bitmap dst = Bitmap.createBitmap(src, 0, 0, src.getWidth(), src.getHeight(), m, false);
dst.setDensity(DisplayMetrics.DENSITY_DEFAULT);
return dst;
}
示例8: xMirrorBitmap
import android.graphics.Bitmap; //导入方法依赖的package包/类
public static Bitmap xMirrorBitmap(Bitmap src) {
Matrix m = new Matrix();
m.preScale(-1, 1);
Bitmap result = Bitmap.createBitmap(src, 0, 0, src.getWidth(), src.getHeight(), m, true);
result.setDensity(src.getDensity());
src.recycle();
return result;
}
示例9: decodeFromWrappedStreams
import android.graphics.Bitmap; //导入方法依赖的package包/类
private Bitmap decodeFromWrappedStreams(InputStream is,
BitmapFactory.Options options, DownsampleStrategy downsampleStrategy,
DecodeFormat decodeFormat, int requestedWidth, int requestedHeight,
boolean fixBitmapToRequestedDimensions, DecodeCallbacks callbacks) throws IOException {
int[] sourceDimensions = getDimensions(is, options, callbacks);
int sourceWidth = sourceDimensions[0];
int sourceHeight = sourceDimensions[1];
String sourceMimeType = options.outMimeType;
int orientation = ImageHeaderParserUtils.getOrientation(parsers, is, byteArrayPool);
int degreesToRotate = TransformationUtils.getExifOrientationDegrees(orientation);
options.inPreferredConfig = getConfig(is, decodeFormat);
if (options.inPreferredConfig != Bitmap.Config.ARGB_8888) {
options.inDither = true;
}
int targetWidth = requestedWidth == Target.SIZE_ORIGINAL ? sourceWidth : requestedWidth;
int targetHeight = requestedHeight == Target.SIZE_ORIGINAL ? sourceHeight : requestedHeight;
calculateScaling(downsampleStrategy, degreesToRotate, sourceWidth, sourceHeight, targetWidth,
targetHeight, options);
boolean isKitKatOrGreater = Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT;
// Prior to KitKat, the inBitmap size must exactly match the size of the bitmap we're decoding.
if ((options.inSampleSize == 1 || isKitKatOrGreater)
&& shouldUsePool(is)) {
int expectedWidth;
int expectedHeight;
if (fixBitmapToRequestedDimensions && isKitKatOrGreater) {
expectedWidth = targetWidth;
expectedHeight = targetHeight;
} else {
float densityMultiplier = isScaling(options)
? (float) options.inTargetDensity / options.inDensity : 1f;
int sampleSize = options.inSampleSize;
int downsampledWidth = (int) Math.ceil(sourceWidth / (float) sampleSize);
int downsampledHeight = (int) Math.ceil(sourceHeight / (float) sampleSize);
expectedWidth = Math.round(downsampledWidth * densityMultiplier);
expectedHeight = Math.round(downsampledHeight * densityMultiplier);
if (Log.isLoggable(TAG, Log.VERBOSE)) {
Log.v(TAG, "Calculated target [" + expectedWidth + "x" + expectedHeight + "] for source"
+ " [" + sourceWidth + "x" + sourceHeight + "]"
+ ", sampleSize: " + sampleSize
+ ", targetDensity: " + options.inTargetDensity
+ ", density: " + options.inDensity
+ ", density multiplier: " + densityMultiplier);
}
}
// If this isn't an image, or BitmapFactory was unable to parse the size, width and height
// will be -1 here.
if (expectedWidth > 0 && expectedHeight > 0) {
setInBitmap(options, bitmapPool, expectedWidth, expectedHeight);
}
}
Bitmap downsampled = decodeStream(is, options, callbacks);
callbacks.onDecodeComplete(bitmapPool, downsampled);
if (Log.isLoggable(TAG, Log.VERBOSE)) {
logDecode(sourceWidth, sourceHeight, sourceMimeType, options, downsampled,
requestedWidth, requestedHeight);
}
Bitmap rotated = null;
if (downsampled != null) {
// If we scaled, the Bitmap density will be our inTargetDensity. Here we correct it back to
// the expected density dpi.
downsampled.setDensity(displayMetrics.densityDpi);
rotated = TransformationUtils.rotateImageExif(bitmapPool, downsampled, orientation);
if (!downsampled.equals(rotated)) {
bitmapPool.put(downsampled);
}
}
return rotated;
}
示例10: splitWith
import android.graphics.Bitmap; //导入方法依赖的package包/类
@SuppressLint({"NewApi"})
public void splitWith(int dispWidth, int dispHeight, int maximumCacheWidth, int maximumCacheHeight) {
recycleBitmapArray();
if (this.width > 0 && this.height > 0 && this.bitmap != null) {
if (this.width > maximumCacheWidth || this.height > maximumCacheHeight) {
maximumCacheWidth = Math.min(maximumCacheWidth, dispWidth);
maximumCacheHeight = Math.min(maximumCacheHeight, dispHeight);
int xCount = (this.width / maximumCacheWidth) + (this.width % maximumCacheWidth == 0 ? 0 : 1);
int yCount = (this.height / maximumCacheHeight) + (this.height % maximumCacheHeight == 0 ? 0 : 1);
int averageWidth = this.width / xCount;
int averageHeight = this.height / yCount;
Bitmap[][] bmpArray = (Bitmap[][]) Array.newInstance(Bitmap.class, new int[]{yCount, xCount});
if (this.canvas == null) {
this.canvas = new Canvas();
if (this.mDensity > 0) {
this.canvas.setDensity(this.mDensity);
}
}
Rect rectSrc = new Rect();
Rect rectDst = new Rect();
for (int yIndex = 0; yIndex < yCount; yIndex++) {
for (int xIndex = 0; xIndex < xCount; xIndex++) {
Bitmap[] bitmapArr = bmpArray[yIndex];
Bitmap bmp = NativeBitmapFactory.createBitmap(averageWidth, averageHeight, Config.ARGB_8888);
bitmapArr[xIndex] = bmp;
if (this.mDensity > 0) {
bmp.setDensity(this.mDensity);
}
this.canvas.setBitmap(bmp);
int left = xIndex * averageWidth;
int top = yIndex * averageHeight;
rectSrc.set(left, top, left + averageWidth, top + averageHeight);
rectDst.set(0, 0, bmp.getWidth(), bmp.getHeight());
this.canvas.drawBitmap(this.bitmap, rectSrc, rectDst, null);
}
}
this.canvas.setBitmap(this.bitmap);
this.bitmapArray = bmpArray;
}
}
}
示例11: createAnimationDrawableList
import android.graphics.Bitmap; //导入方法依赖的package包/类
public static List<AnimationFrame> createAnimationDrawableList(Context context, File directory, FilenameFilter filter, int width, int height) throws IllegalArgumentException {
if (directory == null || directory.isDirectory() == false) {
throw new IllegalArgumentException("Argument isn't directory. "+directory);
}
File[] files = null;
if (filter == null) {
files = directory.listFiles();
} else {
files = directory.listFiles(filter);
}
if (files.length == 0) {
throw new IllegalArgumentException("The directory is empty. " + directory);
}
Arrays.sort(files, new Comparator<File>() {
@Override
public int compare(File lhs, File rhs) {
return lhs.compareTo(rhs);
}
});
List<AnimationFrame> drawables = new ArrayList<AnimationFrame>(files.length);
for (File file : files) {
AnimationFrame frame = new AnimationFrame();
// Extract duration from file name.
frame.setDuration(getDurationFromFileName(file.getName()));
// Create BitmapDrawlable.
Bitmap bitmap = null;
try {
bitmap = AirQuickUtils.image.resizeImage(context, file, width, height);
}
catch(IOException e) {
AirQuickUtils.log.e("Can't resize bimtap.");
continue;
}
bitmap.setDensity(DisplayMetrics.DENSITY_MEDIUM);
BitmapDrawable bitmapDrawable = new BitmapDrawable(bitmap);
bitmapDrawable.setAntiAlias(true);
frame.setDrawable(bitmapDrawable);
drawables.add(frame);
AirQuickUtils.log.e(" Frame >> Path: " + file.getAbsoluteFile() + ", Duration: " + frame.getDuration());
}
return drawables;
}