public final class ImageTools {
/**
* 将View转化为Bitmap
*
* @param view
* @return
*/
public static Bitmap convertViewToBitmap(View view) {
view.measure(MeasureSpec.makeMeasureSpec(0, MeasureSpec.UNSPECIFIED),
MeasureSpec.makeMeasureSpec(0, MeasureSpec.UNSPECIFIED));
// view.layout(0, 0, view.getMeasuredWidth(), view.getMeasuredHeight());
view.buildDrawingCache();
Bitmap bitmap = view.getDrawingCache();
return bitmap;
}
/**
* 质量压缩法
*
* @param image
* @return
*/
public static Bitmap compressImage(Bitmap image) {
ByteArrayOutputStream baos = new ByteArrayOutputStream();
image.compress(Bitmap.CompressFormat.PNG, 100, baos);// 质量压缩方法，这里100表示不压缩，把压缩后的数据存放到baos中
int options = 100;
while (baos.toByteArray().length / 1024 > 100) { // 循环判断如果压缩后图片是否大于100kb,大于继续压缩
baos.reset();// 重置baos即清空baos
options -= 10;// 每次都减少10
if (options > 0 && options < 100)
image.compress(Bitmap.CompressFormat.PNG, options, baos);// 这里压缩options%，把压缩后的数据存放到baos中
}
ByteArrayInputStream isBm = new ByteArrayInputStream(baos.toByteArray());// 把压缩后的数据baos存放到ByteArrayInputStream中
Bitmap bitmap = BitmapFactory.decodeStream(isBm, null, null);// 把ByteArrayInputStream数据生成图片
return bitmap;
}
/**
* 图片按比例大小压缩方法（根据路径获取图片并压缩）
*
* @param srcPath
* @return
*/
public static Bitmap getimage(String srcPath) {
BitmapFactory.Options newOpts = new BitmapFactory.Options();
// 开始读入图片，此时把options.inJustDecodeBounds 设回true了
newOpts.inJustDecodeBounds = true;
Bitmap bitmap = BitmapFactory.decodeFile(srcPath, newOpts);// 此时返回bm为空
newOpts.inJustDecodeBounds = false;
int w = newOpts.outWidth;
int h = newOpts.outHeight;
// 现在主流手机比较多是800*480分辨率，所以高和宽我们设置为
float hh = 180f;// 这里设置高度为800f
float ww = 500f;// 这里设置宽度为480f
// 缩放比。由于是固定比例缩放，只用高或者宽其中一个数据进行计算即可
int be = 1;// be=1表示不缩放
if (w > h && w > ww) {// 如果宽度大的话根据宽度固定大小缩放
be = (int) (newOpts.outWidth / ww);
} else if (w < h && h > hh) {// 如果高度高的话根据宽度固定大小缩放
be = (int) (newOpts.outHeight / hh);
}
if (be <= 0)
be = 1;
newOpts.inSampleSize = be;// 设置缩放比例
// 重新读入图片，注意此时已经把options.inJustDecodeBounds 设回false了
bitmap = BitmapFactory.decodeFile(srcPath, newOpts);
return bitmap;// compressImage(bitmap);// 压缩好比例大小后再进行质量压缩
}
/**
* 图片按比例大小压缩方法（根据路径获取图片并压缩）
*
* @param srcPath
* @return
*/
public static Bitmap getImageFromSDCard(String srcPath) {
BitmapFactory.Options newOpts = new BitmapFactory.Options();
// 开始读入图片，此时把options.inJustDecodeBounds 设回true了
newOpts.inJustDecodeBounds = true;
Bitmap bitmap = BitmapFactory.decodeFile(srcPath, newOpts);// 此时返回bm为空
newOpts.inJustDecodeBounds = false;
int w = newOpts.outWidth;
int h = newOpts.outHeight;
// 现在主流手机比较多是800*480分辨率，所以高和宽我们设置为
float hh = 50f;// 这里设置高度为800f
float ww = 50f;// 这里设置宽度为480f
// 缩放比。由于是固定比例缩放，只用高或者宽其中一个数据进行计算即可
int be = 1;// be=1表示不缩放
if (w > h && w > ww) {// 如果宽度大的话根据宽度固定大小缩放
be = (int) (newOpts.outWidth / ww);
} else if (w < h && h > hh) {// 如果高度高的话根据宽度固定大小缩放
be = (int) (newOpts.outHeight / hh);
}
if (be <= 0)
be = 1;
newOpts.inSampleSize = be;// 设置缩放比例
// 重新读入图片，注意此时已经把options.inJustDecodeBounds 设回false了
bitmap = BitmapFactory.decodeFile(srcPath, newOpts);
return compressImage(bitmap);// 压缩好比例大小后再进行质量压缩
}
public static Bitmap getBitmapByPath(String srcPath) {
return comp(BitmapFactory.decodeFile(srcPath));
}
/**
* 图片按比例大小压缩方法（根据Bitmap图片压缩）
*
* @param image
* @return
*/
public static Bitmap comp(Bitmap image) {
ByteArrayOutputStream baos = new ByteArrayOutputStream();
image.compress(Bitmap.CompressFormat.PNG, 100, baos);
if (baos.toByteArray().length / 1024 > 1024) {// 判断如果图片大于1M,进行压缩避免在生成图片（BitmapFactory.decodeStream）时溢出
baos.reset();// 重置baos即清空baos
image.compress(Bitmap.CompressFormat.PNG, 50, baos);// 这里压缩50%，把压缩后的数据存放到baos中
}
ByteArrayInputStream isBm = new ByteArrayInputStream(baos.toByteArray());
BitmapFactory.Options newOpts = new BitmapFactory.Options();
// 开始读入图片，此时把options.inJustDecodeBounds 设回true了
newOpts.inJustDecodeBounds = true;
Bitmap bitmap = BitmapFactory.decodeStream(isBm, null, newOpts);
newOpts.inJustDecodeBounds = false;
int w = newOpts.outWidth;
int h = newOpts.outHeight;
// 现在主流手机比较多是800*480分辨率，所以高和宽我们设置为
float hh = 800f;// 这里设置高度为800f
float ww = 480f;// 这里设置宽度为480f
// 缩放比。由于是固定比例缩放，只用高或者宽其中一个数据进行计算即可
int be = 1;// be=1表示不缩放
if (w > h && w > ww) {// 如果宽度大的话根据宽度固定大小缩放
be = (int) (newOpts.outWidth / ww);
} else if (w < h && h > hh) {// 如果高度高的话根据宽度固定大小缩放
be = (int) (newOpts.outHeight / hh);
}
if (be <= 0)
be = 1;
newOpts.inSampleSize = be;// 设置缩放比例
newOpts.inPreferredConfig = Config.RGB_565;// 降低图片从ARGB888到RGB565
// 重新读入图片，注意此时已经把options.inJustDecodeBounds 设回false了
isBm = new ByteArrayInputStream(baos.toByteArray());
bitmap = BitmapFactory.decodeStream(isBm, null, newOpts);
return bitmap;// 压缩好比例大小后再进行质量压缩
}
/**
* Transfer drawable to bitmap
*
* @param drawable
* @return
*/
public static Bitmap drawableToBitmap(Drawable drawable) {
int w = drawable.getIntrinsicWidth();
int h = drawable.getIntrinsicHeight();
Bitmap.Config config = drawable.getOpacity() != PixelFormat.OPAQUE ? Bitmap.Config.ARGB_8888
: Bitmap.Config.RGB_565;
Bitmap bitmap = Bitmap.createBitmap(w, h, config);
Canvas canvas = new Canvas(bitmap);
drawable.setBounds(0, 0, w, h);
drawable.draw(canvas);
return bitmap;
}
/**
* Bitmap to drawable
*
* @param bitmap
* @return
*/
public static Drawable bitmapToDrawable(Bitmap bitmap) {
return new BitmapDrawable(bitmap);
}
/**
* Input stream to bitmap
*
* @param inputStream
* @return
* @throws Exception
*/
public static Bitmap inputStreamToBitmap(InputStream inputStream)
throws Exception {
return BitmapFactory.decodeStream(inputStream);
}
/**
* Byte transfer to bitmap
*
* @param byteArray
* @return
*/
public static Bitmap byteToBitmap(byte[] byteArray) {
if(byteArray!=null){
if (byteArray.length != 0) {
return BitmapFactory
.decodeByteArray(byteArray, 0, byteArray.length);
} else {
return null;
}
}else{
return null;
}
}
/**
* Byte transfer to drawable
*
* @param byteArray
* @return
*/
public static Drawable byteToDrawable(byte[] byteArray) {
ByteArrayInputStream ins = null;
if (byteArray != null) {
ins = new ByteArrayInputStream(byteArray);
}
return Drawable.createFromStream(ins, null);
}
/**
* Bitmap transfer to bytes
*
* @return
*/
public static byte[] bitmapToBytes(Bitmap bm) {
byte[] bytes = null;
if (bm != null) {
ByteArrayOutputStream baos = new ByteArrayOutputStream();
bm.compress(Bitmap.CompressFormat.PNG, 100, baos);
bytes = baos.toByteArray();
}
return bytes;
}
/**
* Drawable transfer to bytes
*
* @param drawable
* @return
*/
public static byte[] drawableToBytes(Drawable drawable) {
BitmapDrawable bitmapDrawable = (BitmapDrawable) drawable;
Bitmap bitmap = bitmapDrawable.getBitmap();
byte[] bytes = bitmapToBytes(bitmap);
;
return bytes;
}
/**
* Base64 to byte[] //
*/
// public static byte[] base64ToBytes(String base64) throws IOException {
// byte[] bytes = Base64.decode(base64);
// return bytes;
// }
//
// /**
// * Byte[] to base64
// */
// public static String bytesTobase64(byte[] bytes) {
// String base64 = Base64.encode(bytes);
// return base64;
// }
/**
* Create reflection images
*
* @param bitmap
* @return
*/
public static Bitmap createReflectionImageWithOrigin(Bitmap bitmap) {
final int reflectionGap = 4;
int w = bitmap.getWidth();
int h = bitmap.getHeight();
Matrix matrix = new Matrix();
matrix.preScale(1, -1);
Bitmap reflectionImage = Bitmap.createBitmap(bitmap, 0, h / 2, w,
h / 2, matrix, false);
Bitmap bitmapWithReflection = Bitmap.createBitmap(w, (h + h / 2),
Config.ARGB_8888);
Canvas canvas = new Canvas(bitmapWithReflection);
canvas.drawBitmap(bitmap, 0, 0, null);
Paint deafalutPaint = new Paint();
canvas.drawRect(0, h, w, h + reflectionGap, deafalutPaint);
canvas.drawBitmap(reflectionImage, 0, h + reflectionGap, null);
Paint paint = new Paint();
LinearGradient shader = new LinearGradient(0, bitmap.getHeight(), 0,
bitmapWithReflection.getHeight() + reflectionGap, 0x70ffffff,
0x00ffffff, TileMode.CLAMP);
paint.setShader(shader);
// Set the Transfer mode to be porter duff and destination in
paint.setXfermode(new PorterDuffXfermode(Mode.DST_IN));
// Draw a rectangle using the paint with our linear gradient
canvas.drawRect(0, h, w, bitmapWithReflection.getHeight()
+ reflectionGap, paint);
return bitmapWithReflection;
}
/**
* Get rounded corner images
*
* @param bitmap
* @param roundPx
* 5 10
* @return
*/
public static Bitmap getRoundedCornerBitmap(Bitmap bitmap, float roundPx) {
int w = bitmap.getWidth();
int h = bitmap.getHeight();
Bitmap output = Bitmap.createBitmap(w, h, Config.ARGB_8888);
Canvas canvas = new Canvas(output);
final int color = 0xff424242;
final Paint paint = new Paint();
final Rect rect = new Rect(0, 0, w, h);
final RectF rectF = new RectF(rect);
paint.setAntiAlias(true);
canvas.drawARGB(0, 0, 0, 0);
paint.setColor(color);
canvas.drawRoundRect(rectF, roundPx, roundPx, paint);
paint.setXfermode(new PorterDuffXfermode(Mode.SRC_IN));
canvas.drawBitmap(bitmap, rect, rect, paint);
return output;
}
/**
* Resize the bitmap
*
* @param bitmap
* @param width
* @param height
* @return
*/
public static Bitmap zoomBitmap(Bitmap bitmap, int width, int height) {
Bitmap newbmp = null;
int w = bitmap.getWidth();
int h = bitmap.getHeight();
// 960*1280
if (w > 960 && h > 1280) {
Matrix matrix = new Matrix();
float scaleWidth = ((float) width / w);
float scaleHeight = ((float) height / h);
matrix.postScale(scaleWidth, scaleHeight);
newbmp = Bitmap.createBitmap(bitmap, 0, 0, w, h, matrix, true);
bitmap.recycle();
} else {
newbmp = bitmap;
}
return newbmp;
}
/**
* Resize the drawable
*
* @param drawable
* @param w
* @param h
* @return
*/
public static Drawable zoomDrawable(Drawable drawable, int w, int h) {
int width = drawable.getIntrinsicWidth();
int height = drawable.getIntrinsicHeight();
Bitmap oldbmp = drawableToBitmap(drawable);
Matrix matrix = new Matrix();
float sx = ((float) w / width);
float sy = ((float) h / height);
matrix.postScale(sx, sy);
Bitmap newbmp = Bitmap.createBitmap(oldbmp, 0, 0, width, height,
matrix, true);
return new BitmapDrawable(newbmp);
}
/**
* Get images from SD card by path and the name of image
*
* @param photoName
* @return
*/
public static Bitmap getPhotoFromSDCard(String path, String photoName) {
Bitmap photoBitmap = BitmapFactory.decodeFile(path + "/" + photoName
+ ".png");
if (photoBitmap == null) {
return null;
} else {
return photoBitmap;
}
}
public static Bitmap getPhotoFromSDCard(String path) {
Bitmap photoBitmap = BitmapFactory.decodeFile(path);
if (photoBitmap == null) {
return null;
} else {
return photoBitmap;
}
}
/**
* Check the SD card
*
* @return
*/
public static boolean checkSDCardAvailable() {
return android.os.Environment.getExternalStorageState().equals(
android.os.Environment.MEDIA_MOUNTED);
}
/**
* Get image from SD card by path and the name of image
*
* @param path
* @return
*/
public static boolean findPhotoFromSDCard(String path, String photoName) {
boolean flag = false;
if (checkSDCardAvailable()) {
File dir = new File(path);
if (dir.exists()) {
File folders = new File(path);
File photoFile[] = folders.listFiles();
for (int i = 0; i < photoFile.length; i++) {
String fileName = photoFile[i].getName().split("\\.")[0];
if (fileName.equals(photoName)) {
flag = true;
}
}
} else {
flag = false;
}
// File file = new File(path + "/" + photoName + ".jpg" );
// if (file.exists()) {
// flag = true;
// }else {
// flag = false;
// }
} else {
flag = false;
}
return flag;
}
/**
* Save image to the SD card
*
* @param photoBitmap
* @param photoName
* @param path
*/
public static void savePhotoToSDCard(Bitmap photoBitmap, String path,
String photoName) {
if (checkSDCardAvailable()) {
File dir = new File(path);
if (!dir.exists()) {
dir.mkdirs();
}
File photoFile = new File(path, photoName);
FileOutputStream fileOutputStream = null;
try {
fileOutputStream = new FileOutputStream(photoFile);
if (photoBitmap != null) {
if (photoBitmap.compress(Bitmap.CompressFormat.PNG, 100,
fileOutputStream)) {
fileOutputStream.flush();
// fileOutputStream.close();
}
}
} catch (FileNotFoundException e) {
photoFile.delete();
e.printStackTrace();
} catch (IOException e) {
photoFile.delete();
e.printStackTrace();
} finally {
try {
fileOutputStream.close();
} catch (IOException e) {
e.printStackTrace();
}
}
}
}
/**
* Delete the image from SD card
*
* @param path
* file:///sdcard/temp.jpg
*/
public static void deleteAllPhoto(String path) {
if (checkSDCardAvailable()) {
File folder = new File(path);
File[] files = folder.listFiles();
for (int i = 0; i < files.length; i++) {
files[i].delete();
}
}
}
public static void deletePhotoAtPathAndName(String path, String fileName) {
if (checkSDCardAvailable()) {
File folder = new File(path);
File[] files = folder.listFiles();
for (int i = 0; i < files.length; i++) {
LogUtil.d("libImageTools", files[i].getName());
if (files[i].getName().equals(fileName)) {
files[i].delete();
}
}
}
}
public static Bitmap getBitmap(String localStr){
Bitmap photoBitmap = BitmapFactory.decodeFile(localStr);
return photoBitmap;
}
public static Bitmap getImagesFromSDCard(String path, String photoName) {
Bitmap photoBitmap = BitmapFactory.decodeFile(path.concat(photoName));
if (photoBitmap == null) {
return null;
} else {
return compressBitmap(path.concat(photoName));
}
}
public static Bitmap compressBitmap(String photoPath) {
BitmapFactory.Options newOpts = new BitmapFactory.Options();
// 开始读入图片，此时把options.inJustDecodeBounds 设回true了
newOpts.inJustDecodeBounds = true;
Bitmap bitmap = BitmapFactory.decodeFile(photoPath, newOpts);// 此时返回bm为空
newOpts.inJustDecodeBounds = false;
int w = newOpts.outWidth;
int h = newOpts.outHeight;
// 现在主流手机比较多是800*480分辨率，所以高和宽我们设置为
float hh = 320f;// 这里设置高度为800f
float ww = 240f;// 这里设置宽度为480f
// 缩放比。由于是固定比例缩放，只用高或者宽其中一个数据进行计算即可
int be = 1;// be=1表示不缩放
if (w > h && w > ww) {// 如果宽度大的话根据宽度固定大小缩放
be = (int) (newOpts.outWidth / ww);
} else if (w < h && h > hh) {// 如果高度高的话根据宽度固定大小缩放
be = (int) (newOpts.outHeight / hh);
}
if (be <= 0)
be = 1;
newOpts.inSampleSize = be;// 2;// 设置缩放比例 width，hight设为原来的十分一
// 重新读入图片，注意此时已经把options.inJustDecodeBounds 设回false了
bitmap = BitmapFactory.decodeFile(photoPath, newOpts);
// BitmapFactory.Options options = new BitmapFactory.Options();
// options.inJustDecodeBounds = true;
// Bitmap bitmap = BitmapFactory.decodeFile(photoPath, options);
// //此时返回bm为空
// options.inJustDecodeBounds = false;
// //缩放比
// int be = (int)(options.outHeight / (float)200);
// if (be <= 0)
// be = 1;
// options.inSampleSize = be;
// //重新读入图片，注意这次要把options.inJustDecodeBounds 设为 false哦
// bitmap=BitmapFactory.decodeFile(photoPath,options);
return bitmap;// compressImage(bitmap);
}
public static DisplayImageOptions getChatDisplayImageOptions() {
return mChatDiaplayOptions;
}
static DisplayImageOptions mChatDiaplayOptions = new DisplayImageOptions.Builder()
.cacheInMemory(true)// 设置下载的图片是否缓存在内存中
.cacheOnDisk(true)// 设置下载的图片是否缓存在SD卡中
.considerExifParams(true) // 是否考虑JPEG图像EXIF参数（旋转，翻转）
.imageScaleType(ImageScaleType.EXACTLY_STRETCHED)// 设置图片以如何的编码方式显示
.bitmapConfig(Bitmap.Config.RGB_565)// 设置图片的解码类型//
.displayer(new FadeInBitmapDisplayer(500))
.build();
public static DisplayImageOptions.Builder getChatDisplayImageOptionsBuilder() {
return new DisplayImageOptions.Builder().cacheInMemory(true)// 设置下载的图片是否缓存在内存中
.cacheOnDisk(true)// 设置下载的图片是否缓存在SD卡中
.considerExifParams(true) // 是否考虑JPEG图像EXIF参数（旋转，翻转）
.imageScaleType(ImageScaleType.EXACTLY_STRETCHED)// 设置图片以如何的编码方式显示
.bitmapConfig(Bitmap.Config.RGB_565)// 设置图片的解码类型//
.displayer(new FadeInBitmapDisplayer(500));
}
}