mirror of https://github.com/ThmmyNoLife/mTHMMY
2 changed files with 236 additions and 90 deletions
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package gr.thmmy.mthmmy.activities.upload; |
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import android.content.Context; |
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import android.content.res.AssetFileDescriptor; |
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import android.database.Cursor; |
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import android.graphics.Bitmap; |
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import android.graphics.BitmapFactory; |
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import android.graphics.Matrix; |
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import android.media.ExifInterface; |
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import android.net.Uri; |
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import android.provider.OpenableColumns; |
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import android.support.annotation.NonNull; |
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import android.support.annotation.Nullable; |
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import android.widget.Toast; |
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import java.io.BufferedInputStream; |
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import java.io.BufferedOutputStream; |
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import java.io.File; |
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import java.io.FileNotFoundException; |
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import java.io.FileOutputStream; |
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import java.io.IOException; |
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import java.io.InputStream; |
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import timber.log.Timber; |
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class UploadsHelper { |
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private static final int DEFAULT_MIN_WIDTH_QUALITY = 400; |
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private static final String TEMP_IMAGE_NAME = "tempUploadFile.jpg"; |
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@NonNull |
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static String filenameFromUri(Context context, Uri uri) { |
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String filename = null; |
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if (uri.getScheme().equals("content")) { |
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try (Cursor cursor = context.getContentResolver().query(uri, null, null, null, null)) { |
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if (cursor != null && cursor.moveToFirst()) { |
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filename = cursor.getString(cursor.getColumnIndex(OpenableColumns.DISPLAY_NAME)); |
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} |
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} |
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} |
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if (filename == null) { |
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filename = uri.getPath(); |
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int cut = filename.lastIndexOf('/'); |
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if (cut != -1) { |
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filename = filename.substring(cut + 1); |
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} |
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} |
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return filename; |
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} |
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@SuppressWarnings("ResultOfMethodCallIgnored") |
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@Nullable |
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static String createTempFile(Context context, Uri fileUri, String newFilename) { |
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String oldFilename = filenameFromUri(context, fileUri); |
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String fileExtension = oldFilename.substring(oldFilename.indexOf(".")); |
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String destinationFilename = android.os.Environment.getExternalStorageDirectory().getPath() + |
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File.separatorChar + "~tmp_mThmmy_uploads" + File.separatorChar + newFilename + fileExtension; |
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File tempDirectory = new File(android.os.Environment.getExternalStorageDirectory().getPath() + |
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File.separatorChar + "~tmp_mThmmy_uploads"); |
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if (!tempDirectory.exists()) { |
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if (!tempDirectory.mkdirs()) { |
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Timber.w("Temporary directory build returned false in %s", UploadActivity.class.getSimpleName()); |
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Toast.makeText(context, "Couldn't create temporary directory", Toast.LENGTH_SHORT).show(); |
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return null; |
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} |
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} |
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InputStream inputStream; |
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BufferedInputStream bufferedInputStream = null; |
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BufferedOutputStream bufferedOutputStream = null; |
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try { |
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inputStream = context.getContentResolver().openInputStream(fileUri); |
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if (inputStream == null) { |
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Timber.w("Input stream was null, %s", UploadActivity.class.getSimpleName()); |
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return null; |
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} |
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bufferedInputStream = new BufferedInputStream(inputStream); |
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bufferedOutputStream = new BufferedOutputStream(new FileOutputStream(destinationFilename, false)); |
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byte[] buf = new byte[1024]; |
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bufferedInputStream.read(buf); |
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do { |
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bufferedOutputStream.write(buf); |
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} while (bufferedInputStream.read(buf) != -1); |
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} catch (IOException exception) { |
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exception.printStackTrace(); |
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} finally { |
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try { |
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if (bufferedInputStream != null) bufferedInputStream.close(); |
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if (bufferedOutputStream != null) bufferedOutputStream.close(); |
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} catch (IOException exception) { |
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exception.printStackTrace(); |
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} |
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} |
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return destinationFilename; |
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} |
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static File getTempFile(Context context) { |
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File imageFile = new File(context.getExternalCacheDir(), TEMP_IMAGE_NAME); |
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//noinspection ResultOfMethodCallIgnored
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imageFile.getParentFile().mkdirs(); |
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return imageFile; |
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} |
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static boolean deleteTempFile(String destinationFilename) { |
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File file = new File(destinationFilename); |
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return file.delete(); |
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} |
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/** |
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* Resize to avoid using too much memory loading big images (e.g.: 2560*1920) |
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**/ |
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static Bitmap getImageResized(Context context, Uri selectedImage) { |
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Bitmap bm; |
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int[] sampleSizes = new int[]{5, 3, 2, 1}; |
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int i = 0; |
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do { |
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bm = decodeBitmap(context, selectedImage, sampleSizes[i]); |
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i++; |
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} while (bm.getWidth() < DEFAULT_MIN_WIDTH_QUALITY && i < sampleSizes.length); |
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return bm; |
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} |
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private static Bitmap decodeBitmap(Context context, Uri theUri, int sampleSize) { |
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BitmapFactory.Options options = new BitmapFactory.Options(); |
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options.inSampleSize = sampleSize; |
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AssetFileDescriptor fileDescriptor = null; |
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try { |
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fileDescriptor = context.getContentResolver().openAssetFileDescriptor(theUri, "r"); |
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} catch (FileNotFoundException e) { |
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e.printStackTrace(); |
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} |
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assert fileDescriptor != null; |
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return BitmapFactory.decodeFileDescriptor( |
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fileDescriptor.getFileDescriptor(), null, options); |
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} |
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static int getRotation(Context context, Uri imageUri) { |
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int rotation = 0; |
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try { |
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context.getContentResolver().notifyChange(imageUri, null); |
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ExifInterface exif = new ExifInterface(imageUri.getPath()); |
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int orientation = exif.getAttributeInt( |
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ExifInterface.TAG_ORIENTATION, |
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ExifInterface.ORIENTATION_NORMAL); |
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switch (orientation) { |
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case ExifInterface.ORIENTATION_ROTATE_270: |
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rotation = 270; |
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break; |
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case ExifInterface.ORIENTATION_ROTATE_180: |
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rotation = 180; |
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break; |
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case ExifInterface.ORIENTATION_ROTATE_90: |
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rotation = 90; |
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break; |
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} |
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} catch (Exception e) { |
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e.printStackTrace(); |
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} |
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return rotation; |
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} |
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static Bitmap rotate(Bitmap bm, int rotation) { |
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if (rotation != 0) { |
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Matrix matrix = new Matrix(); |
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matrix.postRotate(rotation); |
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return Bitmap.createBitmap(bm, 0, 0, bm.getWidth(), bm.getHeight(), matrix, true); |
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} |
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return bm; |
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} |
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} |
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