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处理照片工具ImageTool
/**
* Tools for handler picture
* 工具来处理照片
* @author Ryan.Tang
*
*/
public final class ImageTools {
/**
* Transfer drawable to bitmap
* 转让可拉的位图
* @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
* 位图,可拉的
* @param bitmap
* @return
*/
public static Drawable bitmapToDrawable(Bitmap bitmap) {
return new BitmapDrawable(bitmap);
}
/**
* Input stream to bitmap
* 输入流,位图
* @param inputStream
* @return
* @throws Exception
*/
public static Bitmap inputStreamToBitmap(InputStream inputStream)
throws Exception {
return BitmapFactory.decodeStream(inputStream);
}
/**
* Byte transfer to bitmap
* 字节传输位图
* @param byteArray
* @return
*/
public static Bitmap byteToBitmap(byte[] byteArray) {
if (byteArray.length != 0) {
return BitmapFactory
.decodeByteArray(byteArray, 0, byteArray.length);
} else {
return null;
}
}
/**
* Byte transfer to drawable
* 字节传输可拉的
* @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
* 位图转移到字节
* @param byteArray
* @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
* 可拉的转移到字节
* @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
* 创建反射映像
* @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
* 得到圆角图片
* @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
* 调整位图
* @param bitmap
* @param width
* @param height
* @return
*/
public static Bitmap zoomBitmap(Bitmap bitmap, int width, int height) {
int w = bitmap.getWidth();
int h = bitmap.getHeight();
Matrix matrix = new Matrix();
float scaleWidth = ((float) width / w);
float scaleHeight = ((float) height / h);
matrix.postScale(scaleWidth, scaleHeight);
Bitmap newbmp = Bitmap.createBitmap(bitmap, 0, 0, w, h, matrix, true);
return newbmp;
}
/**调整的
* 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从SD卡获得图像的路径和名称的形象
* @return
*/
public static Bitmap getPhotoFromSDCard(String path,String photoName){
Bitmap photoBitmap = BitmapFactory.decodeFile(path + "/" +photoName +".png");
if (photoBitmap == null) {
return null;
}else {
return photoBitmap;
}
}
/**
* Check the SD card
* @return
* 检查SD卡
*/
public static boolean checkSDCardAvailable(){
return android.os.Environment.getExternalStorageState().equals(android.os.Environment.MEDIA_MOUNTED);
}
/**从SD卡获得图像的路径和名称的形象
* Get image from SD card by path and the name of image
* @param fileName
* @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 将图像保存到SD卡
* @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 + ".png");
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从SD卡删除的图像
* @param context
* @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++) {
System.out.println(files[i].getName());
if (files[i].getName().equals(fileName)) {
files[i].delete();
}
}
}
}
}处理照片工具ImageTool
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