package com.example.a90678.wechat_group_send_17_07_02_17_35.screenCapture; import android.graphics.Bitmap; import android.graphics.BitmapFactory; import android.graphics.Matrix; import android.media.ExifInterface; import android.net.Uri; import android.os.Build; import android.os.Environment; import android.util.Log; import com.example.a90678.wechat_group_send_17_07_02_17_35.utils.L; import java.io.ByteArrayInputStream; import java.io.ByteArrayOutputStream; import java.io.File; import java.io.FileInputStream; import java.io.FileOutputStream; import java.io.IOException; import java.nio.channels.FileChannel; import java.text.SimpleDateFormat; import java.util.Date; /** * 描述说明 <br/> * Author : luokaixuan <br/> * CreateDate : 9/18/15 10:11 AM<br/> * Modified : luokaixuan <br/> * ModifiedDate : 9/18/15 10:11 AM<br/> * Email : [email protected] <br/> * Version 1.0 */ public class ImageCompressUtil { public static File getThumbUploadPath(File uploadFile) throws Exception { Bitmap bbb = getThumbUploadPathBitmap(uploadFile); String timeStamp = new SimpleDateFormat("yyyyMMdd_HHmmss") .format(new Date()); return saveImg(bbb, timeStamp); } public static File getThumbUploadPath(String filePath) throws Exception { return getThumbUploadPath(new File(filePath)); } public static Bitmap getThumbUploadPathBitmap(File uploadFile) throws Exception { int bitmapMaxWidth = 270; String oldPath = uploadFile.getAbsolutePath(); BitmapFactory.Options options = new BitmapFactory.Options(); options.inJustDecodeBounds = true; BitmapFactory.decodeFile(oldPath, options); int height = options.outHeight; int width = options.outWidth; int reqHeight = 0; int reqWidth = bitmapMaxWidth; reqHeight = (reqWidth * height)/width; // 在内存中创建bitmap对象，这个对象按照缩放大小创建的 // options.inSampleSize = calculateInSampleSize(options, bitmapMaxWidth, reqHeight); // options.inSampleSize = calculateInSampleSize(options, 270, 480); // Timber.d("calculateInSampleSize(options, 480, 800);===" // + calculateInSampleSize(options, 480, 800)); options.inJustDecodeBounds = false; Bitmap bitmap = BitmapFactory.decodeFile(oldPath, options); //Log.e("asdasdas", "reqWidth->"+reqWidth+"---reqHeight->"+reqHeight); if (bitmap == null) { return null; } Bitmap bbb = compressImage(Bitmap.createScaledBitmap(bitmap, bitmapMaxWidth, reqHeight, true)); //旋转图片 int orientation = readPictureDegree(oldPath);//获取旋转角度 if(Math.abs(orientation) > 0){ bbb = rotaingImageView(orientation, bbb);//旋转图片 } return bbb; } private 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) { if (width > height) { inSampleSize = Math.round((float) height / (float) reqHeight); } else { inSampleSize = Math.round((float) width / (float) reqWidth); } } return inSampleSize; } public static Bitmap compressImage(Bitmap image) { ByteArrayOutputStream baos = new ByteArrayOutputStream(); image.compress(Bitmap.CompressFormat.JPEG, 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 > 5) { // 循环判断如果压缩后图片是否大于100kb,大于继续压缩 if (options >10) { options -= 10;// 每次都减少10 } else { break; } baos.reset();// 重置baos即清空baos image.compress(Bitmap.CompressFormat.JPEG, 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; } /** * 得到bitmap的大小 */ public static int getBitmapSize(Bitmap bitmap) { if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT) { //API 19 return bitmap.getAllocationByteCount(); } if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB_MR1) {//API 12 return bitmap.getByteCount(); } // 在低版本中用一行的字节x高度 return bitmap.getRowBytes() * bitmap.getHeight(); //earlier version } /** * @param b Bitmap * @return 图片存储的位置 */ public static File saveImg(Bitmap b, String name) throws Exception { String path = Environment.getExternalStorageDirectory().getPath() + File.separator + "test/headImg/"; File mediaFile = new File(path + File.separator + name + ".jpg"); if (mediaFile.exists()) { mediaFile.delete(); } if (!new File(path).exists()) { new File(path).mkdirs(); } mediaFile.createNewFile(); FileOutputStream fos = new FileOutputStream(mediaFile); b.compress(Bitmap.CompressFormat.PNG, 100, fos); fos.flush(); fos.close(); b.recycle(); b = null; System.gc(); // return mediaFile.getPath(); return mediaFile; } public static int readPictureDegree(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; } } catch (IOException e) { e.printStackTrace(); } return degree; } public static Bitmap rotaingImageView(int angle , Bitmap bitmap) { //旋转图片 动作 Matrix matrix = new Matrix(); matrix.postRotate(angle); System.out.println("angle2=" + angle); // 创建新的图片 Bitmap resizedBitmap = Bitmap.createBitmap(bitmap, 0, 0, bitmap.getWidth(), bitmap.getHeight(), matrix, true); return resizedBitmap; } /** * 图片的压缩 * * @param outputFile * @return */ public static File scal(File outputFile) { long fileSize = outputFile.length(); final long fileMaxSize = 5 * 1024; if (fileSize >= fileMaxSize) { BitmapFactory.Options options = new BitmapFactory.Options(); options.inJustDecodeBounds = true; String oldPath = outputFile.getAbsolutePath(); BitmapFactory.decodeFile(oldPath, options); int height = options.outHeight; int width = options.outWidth; double scale = Math.sqrt((float) fileSize / fileMaxSize); options.outHeight = (int) (height / scale); options.outWidth = (int) (width / scale); options.inSampleSize = (int) (scale + 0.5); options.inJustDecodeBounds = false; Bitmap bitmap = BitmapFactory.decodeFile(oldPath, options); outputFile = new File(createImageFile().getPath()); FileOutputStream fos = null; try { fos = new FileOutputStream(outputFile); bitmap.compress(Bitmap.CompressFormat.JPEG, 100, fos); fos.close(); } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); } Log.d("", "sss ok " + outputFile.length()); if (!bitmap.isRecycled()) { bitmap.recycle(); } else { File tempFile = outputFile; outputFile = new File(createImageFile().getPath()); copyFileUsingFileChannels(tempFile, outputFile); } } return outputFile; } // public static Bitmap scal2Bitmap(File outputFile) { // // long fileSize = outputFile.length(); // final long fileMaxSize = 5 * 1024; // if (fileSize >= fileMaxSize) { // BitmapFactory.Options options = new BitmapFactory.Options(); // options.inJustDecodeBounds = true; // String oldPath = outputFile.getAbsolutePath(); // BitmapFactory.decodeFile(oldPath, options); // int height = options.outHeight; // int width = options.outWidth; // // double scale = Math.sqrt((float) fileSize / fileMaxSize); // options.outHeight = (int) (height / scale); // options.outWidth = (int) (width / scale); // options.inSampleSize = (int) (scale + 0.5); // options.inJustDecodeBounds = false; // // Bitmap bitmap = BitmapFactory.decodeFile(oldPath, options); // outputFile = new File(createImageFile().getPath()); // FileOutputStream fos = null; // try { // fos = new FileOutputStream(outputFile); // bitmap.compress(Bitmap.CompressFormat.JPEG, 100, fos); // fos.close(); // } catch (IOException e) { // // TODO Auto-generated catch block // e.printStackTrace(); // } // Log.d("", "sss ok " + outputFile.length()); // if (!bitmap.isRecycled()) { // bitmap.recycle(); // } else { // File tempFile = outputFile; // outputFile = new File(createImageFile().getPath()); // copyFileUsingFileChannels(tempFile, outputFile); // } // // } // return outputFile; // // } /** * 一切都操作uri * * @return */ public static Uri createImageFile() { // Create an image file name String timeStamp = new SimpleDateFormat("yyyyMMdd_HHmmss").format(new Date()); String imageFileName = "JPEG_" + timeStamp + "_"; File storageDir = Environment.getExternalStoragePublicDirectory( Environment.DIRECTORY_PICTURES); File image = null; try { image = File.createTempFile( imageFileName, /* prefix */ ".jpg", /* suffix */ storageDir /* directory */ ); } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); } // Save Reboot file: path for use with ACTION_VIEW intents return Uri.fromFile(image); } public static void copyFileUsingFileChannels(File source, File dest) { FileChannel inputChannel = null; FileChannel outputChannel = null; try { try { inputChannel = new FileInputStream(source).getChannel(); outputChannel = new FileOutputStream(dest).getChannel(); outputChannel.transferFrom(inputChannel, 0, inputChannel.size()); } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); } } finally { try { inputChannel.close(); outputChannel.close(); } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); } } } public static File getRotateFile(File uploadFile) throws Exception { int bitmapMaxWidth = 150; String oldPath = uploadFile.getAbsolutePath(); BitmapFactory.Options options = new BitmapFactory.Options(); options.inJustDecodeBounds = true; BitmapFactory.decodeFile(oldPath, options); int height = options.outHeight; int width = options.outWidth; int reqHeight = 0; int reqWidth = bitmapMaxWidth; reqHeight = (reqWidth * height)/width; // 在内存中创建bitmap对象，这个对象按照缩放大小创建的 // options.inSampleSize = calculateInSampleSize(options, bitmapMaxWidth, reqHeight); options.inSampleSize = calculateInSampleSize(options, 480, 800); // Timber.d("calculateInSampleSize(options, 480, 800);===" // + calculateInSampleSize(options, 480, 800)); options.inJustDecodeBounds = false; Bitmap bitmap = BitmapFactory.decodeFile(oldPath, options); //旋转图片 int orientation = readPictureDegree(oldPath);//获取旋转角度 if(Math.abs(orientation) > 0){ bitmap = rotaingImageView(orientation, bitmap);//旋转图片 } return saveImg(bitmap, uploadFile.getName()); } }