Android：指定分辨率和清晰度的图片压缩方法源码
16lz
2021-01-23
http://www.wizzer.cn/?p=1792
public void transImage(String fromFile, String toFile, int width, int height, int quality){try{Bitmap bitmap = BitmapFactory.decodeFile(fromFile);int bitmapWidth = bitmap.getWidth();int bitmapHeight = bitmap.getHeight();// 缩放图片的尺寸float scaleWidth = (float) width / bitmapWidth;float scaleHeight = (float) height / bitmapHeight;Matrix matrix = new Matrix();matrix.postScale(scaleWidth, scaleHeight);// 产生缩放后的Bitmap对象Bitmap resizeBitmap = Bitmap.createBitmap(bitmap, 0, 0, bitmapWidth, bitmapHeight, matrix, false);// save fileFile myCaptureFile = new File(toFile);FileOutputStream out = new FileOutputStream(myCaptureFile);if(resizeBitmap.compress(Bitmap.CompressFormat.JPEG, quality, out)){out.flush();out.close();}if(!bitmap.isRecycled()){bitmap.recycle();//记得释放资源，否则会内存溢出}if(!resizeBitmap.isRecycled()){resizeBitmap.recycle();}}catch (FileNotFoundException e){e.printStackTrace();}catch (IOException ex){ex.printStackTrace();}} 更多相关文章
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