From 3a4c2fa0ba796bd3b9a4671c65bf7ab115233853 Mon Sep 17 00:00:00 2001 From: liqi Date: Fri, 3 Nov 2017 13:56:34 +0800 Subject: [PATCH] code optimization code optimization --- README.md | 43 ++ README_CHINESE.md | 41 + .../liql/photograph/PhotographDispose.java | 25 +- .../liql/photograph/utils/ImageDispose.java | 712 +++++++++--------- 4 files changed, 449 insertions(+), 372 deletions(-) diff --git a/README.md b/README.md index c809a79..ad19df8 100644 --- a/README.md +++ b/README.md @@ -70,6 +70,49 @@ OnDisposeOuterListener.startPhoto(); OnDisposeOuterListener.clear() ``` +**3：ImageDispose image manipulation tool object, providing a series of static methods to manipulate the image or image path.**
+ +```java +//Converts the input stream into a byte array +ImageDispose.readStream(InputStream inStream); + +//Converted to Bitmap by byte array and BitmapFactory +ImageDispose.getPicFromBytes(byte[] bytes,BitmapFactory.Options opts); + +//Convert to a specified size Bitmap +ImageDispose.zoomBitmap(Bitmap bitmap, int w, int h); + +//Convert bitmap to byte array +ImageDispose.bitmap2Bytes(Bitmap bm, int quality); + +//Cut a specified size Bitmap object +ImageDispose.cutterBitmap(Bitmap srcBitmap, int limitWidth,int limitHeight); + +//Image compression, return bitmap byte array +ImageDispose.compressBmpFromByte(Bitmap bitmap, long maxsize); + +//Image compression, return compressed bitmap +ImageDispose.compressBmpGetBmp(Bitmap bitmap, long maxsize); + +//Get the specified size of Bitmap by address, the quality of compression +ImageDispose.acquireBitmap(String path, int compressSize); + +//Drawable to Bitmap +ImageDispose.drawableToBitmap(Drawable drawable); + +//Drawable The specified size of the zoom +ImageDispose.zoomDrawable(Drawable drawable, int w, int h); + +//Byte array conversion File object +ImageDispose.acquireByteFile(byte[] byteOne, String filePath); + +//Get the image path to cut out the name of the picture, the path needs to be extended +ImageDispose.getImageName(String path); + +//Generate a random unique picture name, the path needs to be extended +ImageDispose.getImageRandomName(String path); +``` + 6.0 system above need to add their own dynamic permissions ----- ##### If you feel good, please star give me motivation.

thank you very much. diff --git a/README_CHINESE.md b/README_CHINESE.md index 86d5776..2ca369f 100644 --- a/README_CHINESE.md +++ b/README_CHINESE.md @@ -66,6 +66,47 @@ OnDisposeOuterListener.startPhoto(); //注：为了防止内存泄漏,请在Activity生命周期onDestroy()调用。 OnDisposeOuterListener.clear() ``` +**3：ImageDispose图片操作工具对象，提供一系列静态方法对图片或者图片路径进行操作。**
+```java +//通过输入流转换成字节数组 +ImageDispose.readStream(InputStream inStream); + +//通过字节数组和BitmapFactory转换成Bitmap +ImageDispose.getPicFromBytes(byte[] bytes,BitmapFactory.Options opts); + +//转换成指定大小的Bitmap +ImageDispose.zoomBitmap(Bitmap bitmap, int w, int h); + +//把bitmap转换成字节数组 +ImageDispose.bitmap2Bytes(Bitmap bm, int quality); + +//切割指定大小的Bitmap对象 +ImageDispose.cutterBitmap(Bitmap srcBitmap, int limitWidth,int limitHeight); + +//图片压缩，返回bitmap字节数组 +ImageDispose.compressBmpFromByte(Bitmap bitmap, long maxsize); + +//图片压缩，返回压缩的bitmap +ImageDispose.compressBmpGetBmp(Bitmap bitmap, long maxsize); + +//通过地址获取指定大小的Bitmap(质量压缩) +ImageDispose.acquireBitmap(String path, int compressSize); + +//Drawable转Bitmap +ImageDispose.drawableToBitmap(Drawable drawable); + +//Drawable 指定大小的缩放 +ImageDispose.zoomDrawable(Drawable drawable, int w, int h); + +//字节数组转换File对象 +ImageDispose.acquireByteFile(byte[] byteOne, String filePath); + +//获取图片路径切割出来的图片名字，路径需要带扩展名 +ImageDispose.getImageName(String path); + +//产生随机唯一图片名称，路径需要带扩展名 +ImageDispose.getImageRandomName(String path); +``` 6.0系统以上需要自己动态添加权限 ----- diff --git a/utils/src/main/java/com/liql/photograph/PhotographDispose.java b/utils/src/main/java/com/liql/photograph/PhotographDispose.java index 459ba4c..714f7a5 100644 --- a/utils/src/main/java/com/liql/photograph/PhotographDispose.java +++ b/utils/src/main/java/com/liql/photograph/PhotographDispose.java @@ -113,13 +113,13 @@ public void run() { switch (requestCode) { case SDK_19_BOTTOM: if (null != data) - file = getFile(new PhotoSDKBottomListener(activity, + file = getFile(new PhotoSDKBottomListener<>(activity, PhotographDispose.this), data.getData()); break; case SDK_19_TOP: if (null != data) - file = getFile(new PhotoSDKTopListener(activity, + file = getFile(new PhotoSDKTopListener<>(activity, PhotographDispose.this), data.getData()); break; case SDK_PHOTOGRAPH: @@ -200,7 +200,7 @@ public File getPhotographDisposeData(String path) { if (mPhotographConfigura == null) return null; - File file = getPath(getImageName(path), mPhotographConfigura.getCompressPath()); + File file = getPath(ImageDispose.getImageName(path), mPhotographConfigura.getCompressPath()); // 判断用户选择的图片是否已经压缩过 if (!file.exists()) { Bitmap bitmap = ImageDispose.acquireBitmap(path, 0, 0); @@ -248,25 +248,12 @@ private File getPath(String imageName, String path) { } File file = new File(mSystemPath + File.separator + path); // 判断存储图片的文件夹是否存在 - if (!file.exists()) + if (!file.exists()) { file.mkdirs(); - + } return new File(file.getPath(), imageName); } - /** - * 获取图片路径切割出来的图片名字 - * - * @param path 图片路径 - * @return - */ - private String getImageName(String path) { - String imageName = ""; - String[] split = path.split("/"); - if (null != split) - imageName = split[split.length - 1]; - return imageName; - } /** * 获取手机存储图片保存路径 @@ -274,7 +261,7 @@ private String getImageName(String path) { * @return */ private String getSystemPath() { - String path = ""; + String path; // 判断是否安装有SD卡 if (Environment.getExternalStorageState().equals( Environment.MEDIA_MOUNTED)) { diff --git a/utils/src/main/java/com/liql/photograph/utils/ImageDispose.java b/utils/src/main/java/com/liql/photograph/utils/ImageDispose.java index 2d5fdd4..603a7b3 100644 --- a/utils/src/main/java/com/liql/photograph/utils/ImageDispose.java +++ b/utils/src/main/java/com/liql/photograph/utils/ImageDispose.java @@ -22,381 +22,387 @@ import java.net.HttpURLConnection; import java.net.URL; +/** + * 图片一系列操作处理对象 + */ public class ImageDispose { - /** - * 通过Ulr路径获取图片 - * - * @param urlStr - * ：图片的Url - * @return ：byte[] - */ - public static byte[] getImageFromBuffer(String urlStr) throws Exception { - // 从网络获取，在返回 - URL url = new URL(urlStr); - HttpURLConnection conn = (HttpURLConnection) url.openConnection(); - conn.setRequestMethod("GET"); - conn.setUseCaches(false); - conn.setConnectTimeout(10 * 1000); - // 开辟输出流，用于写图片到缓存 - System.out.println("从网络获取图片"); - if (conn.getResponseCode() == HttpURLConnection.HTTP_OK) { - System.out.println("从网络获取图片++++++++++++++++"); - return readStream(conn.getInputStream());// 获取图片的输入流 - } else { - Log.e("网络错误", conn.getErrorStream().toString()); - return null; - } - } + /** + * 通过输入流转换成字节数组 + * + * @param inStream + * @return + * @throws Exception + */ + public static byte[] readStream(InputStream inStream) throws Exception { + byte[] buffer = new byte[1024]; + int len = -1; + ByteArrayOutputStream outStream = new ByteArrayOutputStream(); + while ((len = inStream.read(buffer)) != -1) { + outStream.write(buffer, 0, len); + } + byte[] data = outStream.toByteArray(); + outStream.close(); + inStream.close(); + System.out.println("data转换" + data == null); + return data; - /** - * 通过输入流转换成字节数组 - * - * @param inStream - * @return - * @throws Exception - */ - public static byte[] readStream(InputStream inStream) throws Exception { - byte[] buffer = new byte[1024]; - int len = -1; - ByteArrayOutputStream outStream = new ByteArrayOutputStream(); - while ((len = inStream.read(buffer)) != -1) { - outStream.write(buffer, 0, len); - } - byte[] data = outStream.toByteArray(); - outStream.close(); - inStream.close(); - System.out.println("data转换" + data == null); - return data; + } - } + /** + * 通过字节数组和BitmapFactory转换成Bitmap + * + * @param bytes + * @param opts + * @return + */ + public static Bitmap getPicFromBytes(byte[] bytes, + BitmapFactory.Options opts) { + if (bytes != null) + if (opts != null) { + opts.inJustDecodeBounds = false; + return BitmapFactory.decodeByteArray(bytes, 0, bytes.length, + opts); + } else + return BitmapFactory.decodeByteArray(bytes, 0, bytes.length); + return null; + } - /** - * 通过字节数组和BitmapFactory转换成Bitmap - * - * @param bytes - * @param opts - * @return - */ - public static Bitmap getPicFromBytes(byte[] bytes, - BitmapFactory.Options opts) { - if (bytes != null) - if (opts != null) { - opts.inJustDecodeBounds = false; - return BitmapFactory.decodeByteArray(bytes, 0, bytes.length, - opts); - } else - return BitmapFactory.decodeByteArray(bytes, 0, bytes.length); - return null; - } + /** + * 转换成指定大小的Bitmap + * + * @param bitmap + * @param w + * @param h + * @return + */ + public static Bitmap zoomBitmap(Bitmap bitmap, int w, int h) { + int width = bitmap.getWidth(); + int height = bitmap.getHeight(); + Matrix matrix = new Matrix(); + float scaleWidth = ((float) w / width); + float scaleHeight = ((float) h / height); + matrix.postScale(scaleWidth, scaleHeight); + Bitmap newBmp = Bitmap.createBitmap(bitmap, 0, 0, width, height, + matrix, true); + return newBmp; + } - /** - * 转换成指定大小的Bitmap - * - * @param bitmap - * @param w - * @param h - * @return - */ - public static Bitmap zoomBitmap(Bitmap bitmap, int w, int h) { - int width = bitmap.getWidth(); - int height = bitmap.getHeight(); - Matrix matrix = new Matrix(); - float scaleWidth = ((float) w / width); - float scaleHeight = ((float) h / height); - matrix.postScale(scaleWidth, scaleHeight); - Bitmap newBmp = Bitmap.createBitmap(bitmap, 0, 0, width, height, - matrix, true); - return newBmp; - } + /** + * 把bitmap转换成字节数组 + * + * @param bm bitmap + * @param quality 压缩质量百分比 + * @return + */ + public static byte[] bitmap2Bytes(Bitmap bm, int quality) { + ByteArrayOutputStream baos = new ByteArrayOutputStream(); + bm.compress(Bitmap.CompressFormat.PNG, quality, baos); + return baos.toByteArray(); + } - /** - * 把bitmap转换成字节数组 - * - * @param bm - * bitmap - * @param quality - * 压缩质量百分比 - * @return - */ - public static byte[] Bitmap2Bytes(Bitmap bm, int quality) { - ByteArrayOutputStream baos = new ByteArrayOutputStream(); - bm.compress(Bitmap.CompressFormat.PNG, quality, baos); - return baos.toByteArray(); - } + public static void getFileFromBytes(byte[] b, File file) { + BufferedOutputStream stream = null; + try { + FileOutputStream fstream = new FileOutputStream(file); + stream = new BufferedOutputStream(fstream); + stream.write(b); + } catch (Exception e) { + e.printStackTrace(); + } finally { + if (stream != null) { + try { + stream.close(); + } catch (IOException e1) { + e1.printStackTrace(); + } + } + } + } - public static void getFileFromBytes(byte[] b, File file) { - BufferedOutputStream stream = null; - try { - FileOutputStream fstream = new FileOutputStream(file); - stream = new BufferedOutputStream(fstream); - stream.write(b); - } catch (Exception e) { - e.printStackTrace(); - } finally { - if (stream != null) { - try { - stream.close(); - } catch (IOException e1) { - e1.printStackTrace(); - } - } - } - } + /** + * 切割指定大小的Bitmap对象 + * + * @param srcBitmap + * @param limitWidth + * @param limitHeight + * @return + */ + public static Bitmap cutterBitmap(Bitmap srcBitmap, int limitWidth, + int limitHeight) { + float width = srcBitmap.getWidth(); + float height = srcBitmap.getHeight(); - /** - * 切割指定大小的Bitmap对象 - * - * @param srcBitmap - * @param limitWidth - * @param limitHeight - * @return - */ - public static Bitmap cutterBitmap(Bitmap srcBitmap, int limitWidth, - int limitHeight) { - float width = srcBitmap.getWidth(); - float height = srcBitmap.getHeight(); + float limitScale = limitWidth / limitHeight; + float srcScale = width / height; - float limitScale = limitWidth / limitHeight; - float srcScale = width / height; + if (limitScale > srcScale) { + // 高小了，所以要去掉多余的高度 + height = limitHeight / ((float) limitWidth / width); + } else { + // 宽度小了，所以要去掉多余的宽度 + width = limitWidth / ((float) limitHeight / height); + } - if (limitScale > srcScale) { - // 高小了，所以要去掉多余的高度 - height = limitHeight / ((float) limitWidth / width); - } else { - // 宽度小了，所以要去掉多余的宽度 - width = limitWidth / ((float) limitHeight / height); - } + Bitmap bitmap = Bitmap.createBitmap((int) width, (int) height, + Config.ARGB_8888); + Canvas canvas = new Canvas(bitmap); + canvas.drawBitmap(srcBitmap, 0, 0, new Paint()); + return bitmap; + } - Bitmap bitmap = Bitmap.createBitmap((int) width, (int) height, - Config.ARGB_8888); - Canvas canvas = new Canvas(bitmap); - canvas.drawBitmap(srcBitmap, 0, 0, new Paint()); - return bitmap; - } + /** + * 图片压缩->返回bitmap字节数组 + * + * @param bitmap + * @param maxsize 指定多大 + * @return + */ + public static byte[] compressBmpFromByte(Bitmap bitmap, long maxsize) { + ByteArrayOutputStream baos = new ByteArrayOutputStream(); + int compress = 100; + bitmap.compress(Bitmap.CompressFormat.JPEG, 100, baos); + System.out.println("没有压缩前>>>>" + baos.toByteArray().length); + while (baos.toByteArray().length > maxsize) { + baos.reset(); + compress -= 10; + bitmap.compress(Bitmap.CompressFormat.JPEG, compress, baos); + } + System.out.println("压缩之后>>>>" + baos.toByteArray().length); + return baos.toByteArray(); + } - /** - * 图片压缩->返回bitmap字节数组 - * - * @param bitmap - * @param maxsize - * 指定多大 - * @return - */ - public static byte[] compressBmpFromByte(Bitmap bitmap, long maxsize) { - ByteArrayOutputStream baos = new ByteArrayOutputStream(); - int compress = 100; - bitmap.compress(Bitmap.CompressFormat.JPEG, 100, baos); - System.out.println("没有压缩前>>>>" + baos.toByteArray().length); - while (baos.toByteArray().length > maxsize) { - baos.reset(); - compress -= 10; - bitmap.compress(Bitmap.CompressFormat.JPEG, compress, baos); - } - System.out.println("压缩之后>>>>" + baos.toByteArray().length); - return baos.toByteArray(); - } + /** + * 图片压缩->返回压缩的bitmap + * + * @param bitmap + * @param maxsize 指定多大 + * @return + */ + public static Bitmap compressBmpGetBmp(Bitmap bitmap, long maxsize) { + if (null != bitmap) { + ByteArrayOutputStream baos = new ByteArrayOutputStream(); + int compress = 100; + bitmap.compress(Bitmap.CompressFormat.JPEG, 100, baos); + while (baos.toByteArray().length > maxsize) { + baos.reset(); + compress -= 10; + bitmap.compress(Bitmap.CompressFormat.JPEG, compress, baos); + } + } + return bitmap; + } - /** - * 图片压缩->返回压缩的bitmap - * - * @param bitmap - * @param maxsize - * 指定多大 - * @return - */ - public static Bitmap compressBmpGetBmp(Bitmap bitmap, long maxsize) { - if (null != bitmap) { - ByteArrayOutputStream baos = new ByteArrayOutputStream(); - int compress = 100; - bitmap.compress(Bitmap.CompressFormat.JPEG, 100, baos); - while (baos.toByteArray().length > maxsize) { - baos.reset(); - compress -= 10; - bitmap.compress(Bitmap.CompressFormat.JPEG, compress, baos); - } - } - return bitmap; - } + /** + * 通过地址获取指定大小的Bitmap(没有压缩) + * + * @param path 地址 + * @param reqWidth 指定宽(无效果) + * @param reqHeight 指定高(无效果) + * @return + */ + public static Bitmap acquireBitmap(String path, int reqWidth, int reqHeight) { + final BitmapFactory.Options options = new BitmapFactory.Options(); + options.inDither = false; // 不进行图片抖动处理 + options.inPreferredConfig = null; // 设置让解码器以最佳方式解码 + if (reqWidth > 0 || reqHeight > 0) { + options.inJustDecodeBounds = true; + options.inSampleSize = calculateInSampleSize(options, reqWidth, + reqHeight); + } + options.inJustDecodeBounds = false; - /** - * 通过地址获取指定大小的Bitmap(没有压缩) - * - * @param path - * 地址 - * @param reqWidth - * 指定宽(无效果) - * @param reqHeight - * 指定高(无效果) - * @return - */ - public static Bitmap acquireBitmap(String path, int reqWidth, int reqHeight) { - final BitmapFactory.Options options = new BitmapFactory.Options(); - options.inDither = false; // 不进行图片抖动处理 - options.inPreferredConfig = null; // 设置让解码器以最佳方式解码 - if (reqWidth > 0 || reqHeight > 0) { - options.inJustDecodeBounds = true; - options.inSampleSize = calculateInSampleSize(options, reqWidth, - reqHeight); - } - options.inJustDecodeBounds = false; + return BitmapFactory.decodeFile(path, options); + } - return BitmapFactory.decodeFile(path, options); - } + /** + * 通过地址获取指定大小的Bitmap(质量压缩) + * + * @param path 本地路径 + * @param compressSize 设置位图缩放比例 width，hight设为原来的四分一（该参数请使用2的整数倍）,这也减小了位图占用的内存大小； + * 例如，一张 + * 分辨率为2048*1536px的图像使用inSampleSize值为4的设置来解码，产生的Bitmap大小约为512 + * *384px。 相较于完整图片占用12M的内存，这种方式只需0.75M内存(假设Bitmap配置为//ARGB_8888)。 + * @return + */ + public static Bitmap acquireBitmap(String path, int compressSize) { + FileInputStream is = null; + try { + is = new FileInputStream(path); + } catch (FileNotFoundException e) { + e.printStackTrace(); + } + // 2.为位图设置100K的缓存 + BitmapFactory.Options opts = new BitmapFactory.Options(); + opts.inTempStorage = new byte[100 * 1024]; + // 3.设置位图颜色显示优化方式 + // ALPHA_8：每个像素占用1byte内存（8位） + // ARGB_4444:每个像素占用2byte内存（16位） + // ARGB_8888:每个像素占用4byte内存（32位） + // RGB_565:每个像素占用2byte内存（16位） + // Android默认的颜色模式为ARGB_8888，这个颜色模式色彩最细腻，显示质量最高。但同样的，占用的内存//也最大。也就意味着一个像素点占用4个字节的内存。我们来做一个简单的计算题：3200*2400*4 + // bytes //=30M。如此惊人的数字！哪怕生命周期超不过10s，Android也不会答应的。 + opts.inPreferredConfig = Config.RGB_565; + // 4.设置图片可以被回收，创建Bitmap用于存储Pixel的内存空间在系统内存不足时可以被回收 + opts.inPurgeable = true; + // 5.设置位图缩放比例 + // width，hight设为原来的四分一（该参数请使用2的整数倍）,这也减小了位图占用的内存大小；例如，一张//分辨率为2048*1536px的图像使用inSampleSize值为4的设置来解码，产生的Bitmap大小约为//512*384px。相较于完整图片占用12M的内存，这种方式只需0.75M内存(假设Bitmap配置为//ARGB_8888)。 + opts.inSampleSize = compressSize; + // 6.设置解码位图的尺寸信息 + opts.inInputShareable = true; + // 7.解码位图 + Bitmap btp = BitmapFactory.decodeStream(is, null, opts); + try { + if (is != null) { + is.close(); + is = null; + } + } catch (IOException e) { + e.printStackTrace(); + } + return btp; + } - /** - * 通过地址获取指定大小的Bitmap(质量压缩) - * - * @param path - * 本地路径 - * @param compressSize - * 设置位图缩放比例 width，hight设为原来的四分一（该参数请使用2的整数倍）,这也减小了位图占用的内存大小； - * 例如，一张 - * 分辨率为2048*1536px的图像使用inSampleSize值为4的设置来解码，产生的Bitmap大小约为512 - * *384px。 相较于完整图片占用12M的内存，这种方式只需0.75M内存(假设Bitmap配置为//ARGB_8888)。 - * @return - */ - public static Bitmap acquireBitmap(String path, int compressSize) { - FileInputStream is = null; - try { - is = new FileInputStream(path); - } catch (FileNotFoundException e) { - e.printStackTrace(); - } - // 2.为位图设置100K的缓存 - BitmapFactory.Options opts = new BitmapFactory.Options(); - opts.inTempStorage = new byte[100 * 1024]; - // 3.设置位图颜色显示优化方式 - // ALPHA_8：每个像素占用1byte内存（8位） - // ARGB_4444:每个像素占用2byte内存（16位） - // ARGB_8888:每个像素占用4byte内存（32位） - // RGB_565:每个像素占用2byte内存（16位） - // Android默认的颜色模式为ARGB_8888，这个颜色模式色彩最细腻，显示质量最高。但同样的，占用的内存//也最大。也就意味着一个像素点占用4个字节的内存。我们来做一个简单的计算题：3200*2400*4 - // bytes //=30M。如此惊人的数字！哪怕生命周期超不过10s，Android也不会答应的。 - opts.inPreferredConfig = Config.RGB_565; - // 4.设置图片可以被回收，创建Bitmap用于存储Pixel的内存空间在系统内存不足时可以被回收 - opts.inPurgeable = true; - // 5.设置位图缩放比例 - // width，hight设为原来的四分一（该参数请使用2的整数倍）,这也减小了位图占用的内存大小；例如，一张//分辨率为2048*1536px的图像使用inSampleSize值为4的设置来解码，产生的Bitmap大小约为//512*384px。相较于完整图片占用12M的内存，这种方式只需0.75M内存(假设Bitmap配置为//ARGB_8888)。 - opts.inSampleSize = compressSize; - // 6.设置解码位图的尺寸信息 - opts.inInputShareable = true; - // 7.解码位图 - Bitmap btp = BitmapFactory.decodeStream(is, null, opts); - try { - if (is!=null) { - is.close(); - is = null; - } - } catch (IOException e) { - e.printStackTrace(); - } - return btp; - } + // 计算图片的缩放值 + private static int calculateInSampleSize(BitmapFactory.Options options, + int reqWidth, int reqHeight) { + final int height = options.outHeight; + final int width = options.outWidth; + int inSampleSize = 1; - // 计算图片的缩放值 - private static int calculateInSampleSize(BitmapFactory.Options options, - int reqWidth, int reqHeight) { - final int height = options.outHeight; - final int width = options.outWidth; - int inSampleSize = 1; + if (height > reqHeight || width > reqWidth) { + final double heightRatio = Math.ceil((float) height + / (float) reqHeight); + final double widthRatio = Math.ceil((float) width + / (float) reqWidth); + inSampleSize = (int) Math.ceil(Math.max(heightRatio, widthRatio)); + } + return inSampleSize; + } - if (height > reqHeight || width > reqWidth) { - final double heightRatio = Math.ceil((float) height - / (float) reqHeight); - final double widthRatio = Math.ceil((float) width - / (float) reqWidth); - inSampleSize = (int) Math.ceil(Math.max(heightRatio, widthRatio)); - } - return inSampleSize; - } + /** + * Drawable转Bitmap + * + * @param drawable + * @return + */ + public static Bitmap drawableToBitmap(Drawable drawable) { + // 取 drawable 的长宽 + int w = drawable.getIntrinsicWidth(); + int h = drawable.getIntrinsicHeight(); - /** - * Drawable转Bitmap - * - * @param drawable - * @return - */ - public static Bitmap drawableToBitmap(Drawable drawable) { - // 取 drawable 的长宽 - int w = drawable.getIntrinsicWidth(); - int h = drawable.getIntrinsicHeight(); + // 取 drawable 的颜色格式 + Config config = drawable.getOpacity() != PixelFormat.OPAQUE ? Config.ARGB_8888 + : Config.RGB_565; + // 建立对应 bitmap + Bitmap bitmap = Bitmap.createBitmap(w, h, config); + // 建立对应 bitmap 的画布 + Canvas canvas = new Canvas(bitmap); + drawable.setBounds(0, 0, w, h); + // 把 drawable 内容画到画布中 + drawable.draw(canvas); + return bitmap; + } - // 取 drawable 的颜色格式 - Config config = drawable.getOpacity() != PixelFormat.OPAQUE ? Config.ARGB_8888 - : Config.RGB_565; - // 建立对应 bitmap - Bitmap bitmap = Bitmap.createBitmap(w, h, config); - // 建立对应 bitmap 的画布 - Canvas canvas = new Canvas(bitmap); - drawable.setBounds(0, 0, w, h); - // 把 drawable 内容画到画布中 - drawable.draw(canvas); - return bitmap; - } + /** + * Drawable 指定大小的缩放 + * + * @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(); + // drawable转换成bitmap + Bitmap oldbmp = drawableToBitmap(drawable); + // 创建操作图片用的Matrix对象 + Matrix matrix = new Matrix(); + // 计算缩放比例 + float sx = ((float) w / width); + float sy = ((float) h / height); + // 设置缩放比例 + matrix.postScale(sx, sy); + // 建立新的bitmap，其内容是对原bitmap的缩放后的图 + Bitmap newbmp = Bitmap.createBitmap(oldbmp, 0, 0, width, height, + matrix, true); + return new BitmapDrawable(newbmp); + } - /** - * Drawable 指定大小的缩放 - * - * @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(); - // drawable转换成bitmap - Bitmap oldbmp = drawableToBitmap(drawable); - // 创建操作图片用的Matrix对象 - Matrix matrix = new Matrix(); - // 计算缩放比例 - float sx = ((float) w / width); - float sy = ((float) h / height); - // 设置缩放比例 - matrix.postScale(sx, sy); - // 建立新的bitmap，其内容是对原bitmap的缩放后的图 - Bitmap newbmp = Bitmap.createBitmap(oldbmp, 0, 0, width, height, - matrix, true); - return new BitmapDrawable(newbmp); - } + /** + * 字节数组转换File对象 + * + * @param byteOne + * @param filePath + * @return + * @throws Exception + */ + public static File acquireByteFile(byte[] byteOne, String filePath) { + File file = null; + FileOutputStream fos = null; + BufferedOutputStream bos = null; + try { + file = new File(filePath); + fos = new FileOutputStream(file); + bos = new BufferedOutputStream(fos); + bos.write(byteOne); + } catch (Exception e) { + e.printStackTrace(); + } finally { + if (fos != null) { + try { + fos.close(); + } catch (IOException e) { + e.printStackTrace(); + } + } + if (bos != null) { + try { + bos.close(); + } catch (IOException e) { + e.printStackTrace(); + } + } + } - /** - * 字节数组转换File对象 - * - * @param byteOne - * @param filePath - * @return - * @throws Exception - */ - public static File acquireByteFile(byte[] byteOne, String filePath) { - File file = null; - FileOutputStream fos = null; - BufferedOutputStream bos = null; - try { - file = new File(filePath); - fos = new FileOutputStream(file); - bos = new BufferedOutputStream(fos); - bos.write(byteOne); - } catch (Exception e) { - e.printStackTrace(); - } finally { - if (fos != null) { - try { - fos.close(); - } catch (IOException e) { - e.printStackTrace(); - } - } - if (bos != null) { - try { - bos.close(); - } catch (IOException e) { - e.printStackTrace(); - } - } - } + return file; + } - return file; - } + /** + * 获取图片路径切割出来的图片名字 + * + * @param path 图片路径-->需要带扩展名 + * @return + */ + public static String getImageName(String path) { + String imageName = ""; + String[] split = path.split("/"); + if (split.length > 0) { + imageName = split[split.length - 1]; + } + return imageName; + } + /** + * 产生随机唯一图片名称 + * + * @param path 图片路径-->需要带扩展名 + * @return + */ + public static String getImageRandomName(String path) { + String randomName = System.currentTimeMillis() + ""; + String imageName = getImageName(path); + if (!"".equals(imageName.trim())) { + String[] split = imageName.split("\\."); + if (split.length > 1) { + String extendName = split[split.length - 1]; + if (!"".equals(split[split.length - 1].trim())) { + randomName += "." + extendName; + } + } + } else { + randomName += ".jpg"; + } + return randomName; + } }