package com.xjf.repository.utils;
import android.annotation.TargetApi;
import android.content.Context;
import android.content.res.Resources;
import android.graphics.Bitmap;
import android.graphics.Bitmap.CompressFormat;
import android.graphics.Bitmap.Config;
import android.graphics.BitmapFactory;
import android.graphics.BitmapShader;
import android.graphics.Canvas;
import android.graphics.Color;
import android.graphics.LinearGradient;
import android.graphics.Matrix;
import android.graphics.Paint;
import android.graphics.PorterDuff;
import android.graphics.PorterDuffColorFilter;
import android.graphics.PorterDuffXfermode;
import android.graphics.Rect;
import android.graphics.RectF;
import android.graphics.Shader;
import android.graphics.drawable.BitmapDrawable;
import android.graphics.drawable.Drawable;
import android.media.ExifInterface;
import android.os.Build;
import android.renderscript.Allocation;
import android.renderscript.Element;
import android.renderscript.RenderScript;
import android.renderscript.ScriptIntrinsicBlur;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
/**
* <pre>
* author: Blankj
* blog : http://blankj.com
* time : 2016/8/12
* desc : 图片相关工具类
* </pre>
*/
public class ImageUtils {
private ImageUtils() {
throw new UnsupportedOperationException("u can't fuck me...");
}
/**
* bitmap转byteArr
*
* @param bitmap bitmap对象
* @param format 格式
* @return 字节数组
*/
public static byte[] bitmap2Bytes(Bitmap bitmap, CompressFormat format) {
if (bitmap == null) return null;
ByteArrayOutputStream baos = new ByteArrayOutputStream();
bitmap.compress(format, 100, baos);
return baos.toByteArray();
}
/**
* byteArr转bitmap
*
* @param bytes 字节数组
* @return bitmap对象
*/
public static Bitmap bytes2Bitmap(byte[] bytes) {
return (bytes == null || bytes.length == 0) ? null : BitmapFactory.decodeByteArray(bytes, 0, bytes.length);
}
/**
* drawable转bitmap
*
* @param drawable drawable对象
* @return bitmap对象
*/
public static Bitmap drawable2Bitmap(Drawable drawable) {
return drawable == null ? null : ((BitmapDrawable) drawable).getBitmap();
}
/**
* bitmap转drawable
*
* @param resources resources对象
* @param bitmap bitmap对象
* @return drawable对象
*/
public static Drawable bitmap2Drawable(Resources resources, Bitmap bitmap) {
return bitmap == null ? null : new BitmapDrawable(resources, bitmap);
}
/**
* drawable转byteArr
*
* @param drawable drawable对象
* @param format 格式
* @return 字节数组
*/
public static byte[] drawable2Bytes(Drawable drawable, CompressFormat format) {
return bitmap2Bytes(drawable2Bitmap(drawable), format);
}
/**
* byteArr转drawable
*
* @param resources resources对象
* @param bytes 字节数组
* @return drawable对象
*/
public static Drawable bytes2Drawable(Resources resources, byte[] bytes) {
return bitmap2Drawable(resources, bytes2Bitmap(bytes));
}
/**
* 根据文件路径获取bitmap
*
* @param filePath 文件路径
* @return bitmap
*/
public static Bitmap getBitmapByFile(String filePath) {
return getBitmapByFile(FileUtils.getFileByPath(filePath));
}
/**
* 根据文件路径获取bitmap
*
* @param file 文件路径
* @return bitmap
*/
public static Bitmap getBitmapByFile(File file) {
if (file == null) return null;
try {
return BitmapFactory.decodeStream(new FileInputStream(file));
} catch (FileNotFoundException e) {
e.printStackTrace();
return null;
}
}
/**
* 根据文件路径获取bitmap
*
* @param filePath 文件路径
* @return bitmap
*/
public static Bitmap getBitmapByFile(String filePath, int reqWidth, int reqHeight) {
if (StringUtils.isSpace(filePath)) return null;
final BitmapFactory.Options options = new BitmapFactory.Options();
options.inJustDecodeBounds = true;
BitmapFactory.decodeFile(filePath, options);
options.inSampleSize = calculateInSampleSize(options, reqWidth, reqHeight);
options.inJustDecodeBounds = false;
return BitmapFactory.decodeFile(filePath, options);
}
public static int calculateInSampleSize(
BitmapFactory.Options options, int reqWidth, int reqHeight) {
// Raw height and width of image
final int height = options.outHeight;
final int width = options.outWidth;
int inSampleSize = 1;
if (height > reqHeight || width > reqWidth) {
final int halfHeight = height / 2;
final int halfWidth = width / 2;
// Calculate the largest inSampleSize value that is a power of 2 and keeps both
// height and width larger than the requested height and width.
while ((halfHeight / inSampleSize) > reqHeight
&& (halfWidth / inSampleSize) > reqWidth) {
inSampleSize *= 2;
}
}
return inSampleSize;
}
/**
* 缩放图片
*
* @param src 源图片
* @param newWidth 新宽度
* @param newHeight 新高度
* @return 缩放后的图片
*/
public static Bitmap scaleImage(Bitmap src, int newWidth, int newHeight) {
return scaleImage(src, (float) newWidth / src.getWidth(), (float) newHeight / src.getHeight());
}
/**
* 缩放图片
*
* @param src 源图片
* @param scaleWidth 缩放宽度比
* @param scaleHeight 缩放高度比
* @return 缩放后的图片
*/
public static Bitmap scaleImage(Bitmap src, float scaleWidth, float scaleHeight) {
if (src == null) return null;
Matrix matrix = new Matrix();
matrix.postScale(scaleWidth, scaleHeight);
Bitmap res = Bitmap.createBitmap(src, 0, 0, src.getWidth(), src.getHeight(), matrix, true);
if (!src.isRecycled()) src.recycle();
return res;
}
/**
* 旋转图片
*
* @param src 源图片
* @param degrees 旋转角度
*/
public static Bitmap rotateBitmap(Bitmap src, int degrees) {
if (src == null || degrees == 0) return src;
Matrix matrix = new Matrix();
matrix.setRotate(degrees, src.getWidth() / 2, src.getHeight() / 2);
Bitmap res = Bitmap.createBitmap(src, 0, 0, src.getWidth(), src.getHeight(), matrix, true);
if (!src.isRecycled()) src.recycle();
return res;
}
/**
* 获取图片旋转角度
*
* @param path 路径
*/
public static int getRotateDegree(String path) {
int degree = 0;
try {
ExifInterface exifInterface = new ExifInterface(path);
int orientation = exifInterface.getAttributeInt(
ExifInterface.TAG_ORIENTATION,
ExifInterface.ORIENTATION_NORMAL);
switch (orientation) {
case ExifInterface.ORIENTATION_ROTATE_90:
degree = 90;
break;
case ExifInterface.ORIENTATION_ROTATE_180:
degree = 180;
break;
case ExifInterface.ORIENTATION_ROTATE_270:
degree = 270;
break;
default:
degree = 0;
}
} catch (IOException e) {
e.printStackTrace();
}
return degree;
}
/**
* 转为圆形图片
*
* @param src 源图片
* @return 圆形图片
*/
public static Bitmap toRound(Bitmap src) {
if (src == null) return null;
int width = src.getWidth();
int height = src.getHeight();
Bitmap output = Bitmap.createBitmap(width, height, Config.ARGB_8888);
Canvas canvas = new Canvas(output);
final Paint paint = new Paint();
final Rect rect = new Rect(0, 0, width, height);
paint.setAntiAlias(true);
canvas.drawARGB(0, 0, 0, 0);
paint.setColor(Color.TRANSPARENT);
canvas.drawCircle(width / 2, height / 2, width / 2, paint);
paint.setXfermode(new PorterDuffXfermode(PorterDuff.Mode.SRC_IN));
canvas.drawBitmap(src, rect, rect, paint);
if (!src.isRecycled()) src.recycle();
return output;
}
/**
* 转为圆角图片
*
* @param src 源图片
* @param ret 圆角的度数
* @return 圆角图片
*/
public static Bitmap toRoundCorner(Bitmap src, float ret) {
if (null == src) return null;
int width = src.getWidth();
int height = src.getHeight();
Bitmap out = Bitmap.createBitmap(width, height,
Config.ARGB_8888);
BitmapShader bitmapShader = new BitmapShader(src,
Shader.TileMode.CLAMP, Shader.TileMode.CLAMP);
Paint paint = new Paint();
paint.setAntiAlias(true);
paint.setShader(bitmapShader);
RectF rectf = new RectF(0, 0, width, height);
Canvas canvas = new Canvas(out);
canvas.drawRoundRect(rectf, ret, ret, paint);
canvas.save();
canvas.restore();
if (!src.isRecycled()) src.recycle();
return out;
}
/**
* 快速模糊
* <p>先缩小原图，对小图进行模糊，再放大回原先尺寸</p>
*
* @param context 上下文
* @param src 源图片
* @param scale 缩小倍数
* @param radius 模糊半径
* @return 模糊后的图片
*/
public static Bitmap fastBlur(Context context, Bitmap src, int scale, float radius) {
if (isEmptyBitmap(src)) return null;
int width = src.getWidth();
int height = src.getHeight();
int scaleWidth = width / scale;
int scaleHeight = height / scale;
if (scaleWidth == 0 || scaleHeight == 0) return null;
Bitmap scaled = Bitmap.createBitmap(scaleWidth, scaleHeight, Config.ARGB_8888);
Canvas canvas = new Canvas(scaled);
canvas.scale(1 / (float) scale, 1 / (float) scale);
Paint paint = new Paint();
paint.setFlags(Paint.FILTER_BITMAP_FLAG | Paint.ANTI_ALIAS_FLAG);
PorterDuffColorFilter filter = new PorterDuffColorFilter(
Color.TRANSPARENT, PorterDuff.Mode.SRC_ATOP);
paint.setColorFilter(filter);
canvas.drawBitmap(src, 0, 0, paint);
if (!src.isRecycled()) src.recycle();
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN_MR1) {
scaled = renderScriptBlur(context, scaled, radius);
} else {
scaled = stackBlur(scaled, (int) radius, true);
}
if (scale == 1) return scaled;
Bitmap res = Bitmap.createScaledBitmap(scaled, width, height, true);
if (scaled != null && !scaled.isRecycled()) scaled.recycle();
return res;
}
/**
* renderScript模糊图片
* <p>API大于17</p>
*
* @param context 上下文
* @param src 源图片
* @param radius 模糊度(0...25)
* @return 模糊后的图片
*/
@TargetApi(Build.VERSION_CODES.JELLY_BEAN_MR1)
public static Bitmap renderScriptBlur(Context context, Bitmap src, float radius) {
if (isEmptyBitmap(src)) return null;
RenderScript rs = null;
try {
rs = RenderScript.create(context);
rs.setMessageHandler(new RenderScript.RSMessageHandler());
Allocation input = Allocation.createFromBitmap(rs, src, Allocation.MipmapControl.MIPMAP_NONE, Allocation
.USAGE_SCRIPT);
Allocation output = Allocation.createTyped(rs, input.getType());
ScriptIntrinsicBlur blurScript = ScriptIntrinsicBlur.create(rs, Element.U8_4(rs));
if (radius > 25) {
radius = 25.0f;
} else if (radius <= 0) {
radius = 1.0f;
}
blurScript.setInput(input);
blurScript.setRadius(radius);
blurScript.forEach(output);
output.copyTo(src);
} finally {
if (rs != null) {
rs.destroy();
}
}
return src;
}
/**
* stack模糊图片
*
* @param src 源图片
* @param radius 模糊半径
* @param canReuseInBitmap 是否回收
* @return stackBlur模糊图片
*/
public static Bitmap stackBlur(Bitmap src, int radius, boolean canReuseInBitmap) {
Bitmap bitmap;
if (canReuseInBitmap) {
bitmap = src;
} else {
bitmap = src.copy(src.getConfig(), true);
}
if (radius < 1) {
return (null);
}
int w = bitmap.getWidth();
int h = bitmap.getHeight();
int[] pix = new int[w * h];
bitmap.getPixels(pix, 0, w, 0, 0, w, h);
int wm = w - 1;
int hm = h - 1;
int wh = w * h;
int div = radius + radius + 1;
int r[] = new int[wh];
int g[] = new int[wh];
int b[] = new int[wh];
int rsum, gsum, bsum, x, y, i, p, yp, yi, yw;
int vmin[] = new int[Math.max(w, h)];
int divsum = (div + 1) >> 1;
divsum *= divsum;
int dv[] = new int[256 * divsum];
for (i = 0; i < 256 * divsum; i++) {
dv[i] = (i / divsum);
}
yw = yi = 0;
int[][] stack = new int[div][3];
int stackpointer;
int stackstart;
int[] sir;
int rbs;
int r1 = radius + 1;
int routsum, goutsum, boutsum;
int rinsum, ginsum, binsum;
for (y = 0; y < h; y++) {
rinsum = ginsum = binsum = routsum = goutsum = boutsum = rsum = gsum = bsum = 0;
for (i = -radius; i <= radius; i++) {
p = pix[yi + Math.min(wm, Math.max(i, 0))];
sir = stack[i + radius];
sir[0] = (p & 0xff0000) >> 16;
sir[1] = (p & 0x00ff00) >> 8;
sir[2] = (p & 0x0000ff);
rbs = r1 - Math.abs(i);
rsum += sir[0] * rbs;
gsum += sir[1] * rbs;
bsum += sir[2] * rbs;
if (i > 0) {
rinsum += sir[0];
ginsum += sir[1];
binsum += sir[2];
} else {
routsum += sir[0];
goutsum += sir[1];
boutsum += sir[2];
}
}
stackpointer = radius;
for (x = 0; x < w; x++) {
r[yi] = dv[rsum];
g[yi] = dv[gsum];
b[yi] = dv[bsum];
rsum -= routsum;
gsum -= goutsum;
bsum -= boutsum;
stackstart = stackpointer - radius + div;
sir = stack[stackstart % div];
routsum -= sir[0];
goutsum -= sir[1];
boutsum -= sir[2];
if (y == 0) {
vmin[x] = Math.min(x + radius + 1, wm);
}
p = pix[yw + vmin[x]];
sir[0] = (p & 0xff0000) >> 16;
sir[1] = (p & 0x00ff00) >> 8;
sir[2] = (p & 0x0000ff);
rinsum += sir[0];
ginsum += sir[1];
binsum += sir[2];
rsum += rinsum;
gsum += ginsum;
bsum += binsum;
stackpointer = (stackpointer + 1) % div;
sir = stack[(stackpointer) % div];
routsum += sir[0];
goutsum += sir[1];
boutsum += sir[2];
rinsum -= sir[0];
ginsum -= sir[1];
binsum -= sir[2];
yi++;
}
yw += w;
}
for (x = 0; x < w; x++) {
rinsum = ginsum = binsum = routsum = goutsum = boutsum = rsum = gsum = bsum = 0;
yp = -radius * w;
for (i = -radius; i <= radius; i++) {
yi = Math.max(0, yp) + x;
sir = stack[i + radius];
sir[0] = r[yi];
sir[1] = g[yi];
sir[2] = b[yi];
rbs = r1 - Math.abs(i);
rsum += r[yi] * rbs;
gsum += g[yi] * rbs;
bsum += b[yi] * rbs;
if (i > 0) {
rinsum += sir[0];
ginsum += sir[1];
binsum += sir[2];
} else {
routsum += sir[0];
goutsum += sir[1];
boutsum += sir[2];
}
if (i < hm) {
yp += w;
}
}
yi = x;
stackpointer = radius;
for (y = 0; y < h; y++) {
// Preserve alpha channel: ( 0xff000000 & pix[yi] )
pix[yi] = (0xff000000 & pix[yi]) | (dv[rsum] << 16) | (dv[gsum] << 8) | dv[bsum];
rsum -= routsum;
gsum -= goutsum;
bsum -= boutsum;
stackstart = stackpointer - radius + div;
sir = stack[stackstart % div];
routsum -= sir[0];
goutsum -= sir[1];
boutsum -= sir[2];
if (x == 0) {
vmin[y] = Math.min(y + r1, hm) * w;
}
p = x + vmin[y];
sir[0] = r[p];
sir[1] = g[p];
sir[2] = b[p];
rinsum += sir[0];
ginsum += sir[1];
binsum += sir[2];
rsum += rinsum;
gsum += ginsum;
bsum += binsum;
stackpointer = (stackpointer + 1) % div;
sir = stack[stackpointer];
routsum += sir[0];
goutsum += sir[1];
boutsum += sir[2];
rinsum -= sir[0];
ginsum -= sir[1];
binsum -= sir[2];
yi += w;
}
}
bitmap.setPixels(pix, 0, w, 0, 0, w, h);
return (bitmap);
}
/**
* 添加颜色边框
*
* @param src 源图片
* @param borderWidth 边框宽度
* @param color 边框的颜色值
* @return 带颜色边框图
*/
public static Bitmap addFrame(Bitmap src, int borderWidth, int color) {
if (isEmptyBitmap(src)) return null;
int newWidth = src.getWidth() + borderWidth;
int newHeight = src.getHeight() + borderWidth;
Bitmap out = Bitmap.createBitmap(newWidth, newHeight, Config.ARGB_8888);
Canvas canvas = new Canvas(out);
Rect rec = canvas.getClipBounds();
rec.bottom--;
rec.right--;
Paint paint = new Paint();
paint.setColor(color);
paint.setStyle(Paint.Style.STROKE);
paint.setStrokeWidth(borderWidth);
canvas.drawRect(rec, paint);
canvas.drawBitmap(src, borderWidth / 2, borderWidth / 2, null);
canvas.save(Canvas.ALL_SAVE_FLAG);
canvas.restore();
if (!src.isRecycled()) src.recycle();
return out;
}
/**
* 添加倒影
*
* @param src 源图片的
* @param reflectionHeight 倒影高度
* @return 倒影图
*/
public static Bitmap addReflection(Bitmap src, int reflectionHeight) {
if (isEmptyBitmap(src)) return null;
final int REFLECTION_GAP = 0;
int srcWidth = src.getWidth();
int srcHeight = src.getHeight();
if (0 == srcWidth || srcHeight == 0) return null;
Matrix matrix = new Matrix();
matrix.preScale(1, -1);
Bitmap reflectionBitmap = Bitmap.createBitmap(src, 0, srcHeight - reflectionHeight,
srcWidth, reflectionHeight, matrix, false);
if (null == reflectionBitmap) return null;
Bitmap out = Bitmap.createBitmap(srcWidth, srcHeight + reflectionHeight,
Config.ARGB_8888);
if (null == out) return null;
Canvas canvas = new Canvas(out);
canvas.drawBitmap(src, 0, 0, null);
canvas.drawBitmap(reflectionBitmap, 0, srcHeight + REFLECTION_GAP, null);
Paint paint = new Paint();
paint.setAntiAlias(true);
LinearGradient shader = new LinearGradient(0, srcHeight, 0,
out.getHeight() + REFLECTION_GAP,
0x70FFFFFF, 0x00FFFFFF, Shader.TileMode.MIRROR);
paint.setShader(shader);
paint.setXfermode(new PorterDuffXfermode(
PorterDuff.Mode.DST_IN));
canvas.save();
canvas.drawRect(0, srcHeight, srcWidth,
out.getHeight() + REFLECTION_GAP, paint);
canvas.restore();
if (!src.isRecycled()) src.recycle();
if (!reflectionBitmap.isRecycled()) reflectionBitmap.recycle();
return out;
}
/**
* 添加水印文字
*
* @param src 源图片
* @param text 文本
* @param textSize 字体大小
* @param color 颜色
* @param x 起始坐标x
* @param y 起始坐标y
* @return 带有水印文字的图片
*/
public static Bitmap addText(Bitmap src, String text, int textSize, int color, float x, float y) {
Config bitmapConfig = src.getConfig();
if (bitmapConfig == null) bitmapConfig = Config.ARGB_8888;
src = src.copy(bitmapConfig, true);
Canvas canvas = new Canvas(src);
Paint paint = new Paint(Paint.ANTI_ALIAS_FLAG);
paint.setColor(color);
paint.setTextSize(textSize);
paint.setShadowLayer(1f, 0f, 1f, Color.WHITE);
Rect bounds = new Rect();
paint.getTextBounds(text, 0, text.length(), bounds);
canvas.drawText(text, x, y, paint);
return src;
}
/**
* 压缩图片
*
* @param src 源图片
* @param format 格式
* @param topLimit 允许最大值
* @param unit 最大值单位
* @return 压缩过的图片
*/
private Bitmap compress(Bitmap src, CompressFormat format, long topLimit, ConstUtils.MemoryUnit unit) {
ByteArrayOutputStream os = new ByteArrayOutputStream();
src.compress(format, 100, os);
long upperSize = FileUtils.size2Byte(topLimit, unit);
while (os.toByteArray().length > upperSize) {
os.reset();
src.compress(format, 50, os);
}
if (!src.isRecycled()) src.recycle();
return BitmapFactory.decodeStream(new ByteArrayInputStream(os.toByteArray()));
}
/**
* 保存图片
*
* @param src 源图片
* @param filePath 要保存到的文件路径
* @param format 格式
* @return {@code true}: 成功<br>{@code false}: 失败
*/
public static boolean save(Bitmap src, String filePath, CompressFormat format) {
return save(src, FileUtils.getFileByPath(filePath), format);
}
/**
* 保存图片
*
* @param src 源图片
* @param file 要保存到的文件
* @param format 格式
* @return {@code true}: 成功<br>{@code false}: 失败
*/
public static boolean save(Bitmap src, File file, CompressFormat format) {
if (isEmptyBitmap(src) || file == null) return false;
System.out.println(src.getWidth() + "," + src.getHeight());
FileOutputStream fos = null;
try {
fos = new FileOutputStream(file);
return src.compress(format, 100, fos);
} catch (Exception e) {
e.printStackTrace();
return false;
} finally {
FileUtils.closeIO(fos);
}
}
/**
* 判断文件是否为图片
*
* @param file 文件
*/
public static boolean isImage(File file) {
return file != null && isImage(file.getPath());
}
/**
* 判断文件是否为图片
*
* @param filePath 文件路径
*/
public static boolean isImage(String filePath) {
String path = filePath.toUpperCase();
return path.endsWith(".PNG") || path.endsWith(".JPG") ||
path.endsWith(".JPEG") || path.endsWith(".BMP");
}
/**
* 获取图片类型
*
* @param filePath 文件路径
* @return 图片类型
*/
public static String getImageType(String filePath) {
return getImageType(FileUtils.getFileByPath(filePath));
}
/**
* 获取图片类型
*
* @param file 文件
* @return 文件类型
*/
public static String getImageType(File file) {
if (file == null || !file.exists()) return null;
InputStream is = null;
try {
is = new FileInputStream(file);
return getImageType(is);
} catch (IOException e) {
e.printStackTrace();
return null;
} finally {
FileUtils.closeIO(is);
}
}
public static String getImageType(InputStream is) {
if (is == null) return null;
try {
byte[] bytes = new byte[8];
is.read(bytes);
return getImageType(bytes);
} catch (IOException e) {
e.printStackTrace();
return null;
}
}
public static String getImageType(byte[] bytes) {
if (isJPEG(bytes)) {
return "JPEG";
}
if (isGIF(bytes)) {
return "GIF";
}
if (isPNG(bytes)) {
return "PNG";
}
if (isBMP(bytes)) {
return "BMP";
}
return null;
}
private static boolean isJPEG(byte[] b) {
return b.length >= 2
&& (b[0] == (byte) 0xFF) && (b[1] == (byte) 0xD8);
}
private static boolean isGIF(byte[] b) {
return b.length >= 6
&& b[0] == 'G' && b[1] == 'I'
&& b[2] == 'F' && b[3] == '8'
&& (b[4] == '7' || b[4] == '9') && b[5] == 'a';
}
private static boolean isPNG(byte[] b) {
return b.length >= 8
&& (b[0] == (byte) 137 && b[1] == (byte) 80
&& b[2] == (byte) 78 && b[3] == (byte) 71
&& b[4] == (byte) 13 && b[5] == (byte) 10
&& b[6] == (byte) 26 && b[7] == (byte) 10);
}
private static boolean isBMP(byte[] b) {
return b.length >= 2
&& (b[0] == 0x42) && (b[1] == 0x4d);
}
/**
* 判断bitmap对象是否为空
*
* @param src 源图片
* @return {@code true}: 是<br>{@code false}: 否
*/
private static boolean isEmptyBitmap(Bitmap src) {
return src == null || src.getWidth() == 0 || src.getHeight() == 0;
}
}