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Merge pull request #2 from kredibel-id/compress
[Update] compress, stable. Walhamdulillah.
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121 changes: 121 additions & 0 deletions
121
picker/src/main/java/io/kredibel/picker/FileCompressor.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,121 @@ | ||
| package io.kredibel.picker; | ||
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| import android.content.Context; | ||
| import android.graphics.Bitmap; | ||
| import android.graphics.BitmapFactory; | ||
| import android.graphics.Matrix; | ||
| import android.media.ExifInterface; | ||
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|
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| import java.io.File; | ||
| import java.io.FileOutputStream; | ||
| import java.io.IOException; | ||
| import java.util.Objects; | ||
|
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| public class FileCompressor { | ||
| //max width and height values of the compressed image is taken as 612x816 | ||
| private final Bitmap.CompressFormat compressFormat = Bitmap.CompressFormat.JPEG; | ||
| private final String destinationDirectoryPath; | ||
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| public FileCompressor(Context context) { | ||
| destinationDirectoryPath = context.getCacheDir().getPath() + File.separator + "images"; | ||
| } | ||
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| /*public static Bitmap getBitmapData(Context context, Intent data) { | ||
| Uri photoUri = null; | ||
| if (data != null && data.getData() != null) { | ||
| photoUri = data.getData(); | ||
| } | ||
| String path = photoUri.getPath(); | ||
| try { | ||
| InputStream imageStream = context.getContentResolver().openInputStream(photoUri); | ||
| Bitmap bitmap = BitmapFactory.decodeStream(imageStream); | ||
| imageStream.close(); | ||
| return bitmap; | ||
| } catch (IOException e) { | ||
| e.printStackTrace(); | ||
| return null; | ||
| } | ||
| }*/ | ||
|
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| static File compressImage(File imageFile, Bitmap.CompressFormat compressFormat, int quality, String destinationPath) throws IOException { | ||
| FileOutputStream fileOutputStream = null; | ||
| File file = new File(destinationPath).getParentFile(); | ||
| if (!Objects.requireNonNull(file).exists()) { | ||
| file.mkdirs(); | ||
| } | ||
| try { | ||
| fileOutputStream = new FileOutputStream(destinationPath); | ||
| // write the compressed bitmap at the destination specified by destinationPath. | ||
| decodeSampledBitmapFromFile(imageFile).compress(compressFormat, quality, fileOutputStream); | ||
| } finally { | ||
| if (fileOutputStream != null) { | ||
| fileOutputStream.flush(); | ||
| fileOutputStream.close(); | ||
| } | ||
| } | ||
| return new File(destinationPath); | ||
| } | ||
|
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| static Bitmap decodeSampledBitmapFromFile(File imageFile) throws IOException { | ||
| // First decode with inJustDecodeBounds=true to check dimensions | ||
| BitmapFactory.Options options = new BitmapFactory.Options(); | ||
| options.inJustDecodeBounds = true; | ||
| BitmapFactory.decodeFile(imageFile.getAbsolutePath(), options); | ||
| // Calculate inSampleSize | ||
| options.inSampleSize = calculateInSampleSize(options); | ||
| // Decode bitmap with inSampleSize set | ||
| options.inJustDecodeBounds = false; | ||
| Bitmap scaledBitmap = BitmapFactory.decodeFile(imageFile.getAbsolutePath(), options); | ||
| //check the rotation of the image and display it properly | ||
| ExifInterface exif; | ||
| exif = new ExifInterface(imageFile.getAbsolutePath()); | ||
| int orientation = exif.getAttributeInt(ExifInterface.TAG_ORIENTATION, 0); | ||
| Matrix matrix = new Matrix(); | ||
| if (orientation == 6) { | ||
| matrix.postRotate(90); | ||
| } else if (orientation == 3) { | ||
| matrix.postRotate(180); | ||
| } else if (orientation == 8) { | ||
| matrix.postRotate(270); | ||
| } | ||
| scaledBitmap = Bitmap.createBitmap(scaledBitmap, 0, 0, scaledBitmap.getWidth(), scaledBitmap.getHeight(), matrix, true); | ||
| return scaledBitmap; | ||
| } | ||
|
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| private static int calculateInSampleSize(BitmapFactory.Options options) { | ||
| // Raw height and width of image | ||
| final int height = options.outHeight; | ||
| final int width = options.outWidth; | ||
| int inSampleSize = 1; | ||
| if (height > 816 || width > 612) { | ||
| 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) >= 816 && (halfWidth / inSampleSize) >= 612) { | ||
| inSampleSize *= 2; | ||
| } | ||
| } | ||
| return inSampleSize; | ||
| } | ||
|
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| /*public FileCompressor setDestinationDirectoryPath(String destinationDirectoryPath) { | ||
| this.destinationDirectoryPath = destinationDirectoryPath; | ||
| return this; | ||
| }*/ | ||
|
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| public File compressToFile(File imageFile) throws IOException { | ||
| return compressToFile(imageFile, imageFile.getName()); | ||
| } | ||
|
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| public File compressToFile(File imageFile, String compressedFileName) throws IOException { | ||
| int quality = 50; | ||
| return compressImage(imageFile, compressFormat, quality, destinationDirectoryPath + File.separator + compressedFileName); | ||
| } | ||
|
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| /*public Bitmap compressToBitmap(File imageFile) throws IOException { | ||
| return decodeSampledBitmapFromFile(imageFile); | ||
| }*/ | ||
| } |
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