/*
- * Copyright © 2020 Soren Stoutner <soren@stoutner.com>.
+ * Copyright © 2020-2021 Soren Stoutner <soren@stoutner.com>.
*
* This file is part of Privacy Browser <https://www.stoutner.com/privacy-browser>.
*
package com.stoutner.privacybrowser.asynctasks;
import android.app.Activity;
-import android.content.ContentResolver;
-import android.content.Context;
-import android.content.Intent;
+import android.database.Cursor;
import android.graphics.Bitmap;
import android.graphics.Canvas;
import android.net.Uri;
import android.os.AsyncTask;
import android.os.Build;
-import android.view.View;
+import android.provider.OpenableColumns;
import android.widget.LinearLayout;
-import androidx.core.content.FileProvider;
-
import com.google.android.material.snackbar.Snackbar;
import com.stoutner.privacybrowser.R;
import java.io.ByteArrayOutputStream;
-import java.io.File;
-import java.io.FileOutputStream;
+import java.io.OutputStream;
import java.lang.ref.WeakReference;
public class SaveAboutVersionImage extends AsyncTask<Void, Void, String> {
- // Declare the weak references.
- private WeakReference<Context> contextWeakReference;
- private WeakReference<Activity> activityWeakReference;
- private WeakReference<LinearLayout> aboutVersionLinearLayoutWeakReference;
-
// Declare the class constants.
private final String SUCCESS = "Success";
+ // Declare the weak references.
+ private final WeakReference<Activity> activityWeakReference;
+ private final WeakReference<LinearLayout> aboutVersionLinearLayoutWeakReference;
+
// Declare the class variables.
private Snackbar savingImageSnackbar;
private Bitmap aboutVersionBitmap;
- private String filePathString;
+ private final Uri fileNameUri;
+ private final String fileNameString;
// The public constructor.
- public SaveAboutVersionImage(Context context, Activity activity, String filePathString, LinearLayout aboutVersionLinearLayout) {
+ public SaveAboutVersionImage(Activity activity, Uri fileNameUri, LinearLayout aboutVersionLinearLayout) {
// Populate the weak references.
- contextWeakReference = new WeakReference<>(context);
activityWeakReference = new WeakReference<>(activity);
aboutVersionLinearLayoutWeakReference = new WeakReference<>(aboutVersionLinearLayout);
// Store the class variables.
- this.filePathString = filePathString;
+ this.fileNameUri = fileNameUri;
+
+ // Query the exact file name if the API >= 26.
+ if (Build.VERSION.SDK_INT >= 26) {
+ // Get a cursor from the content resolver.
+ Cursor contentResolverCursor = activity.getContentResolver().query(fileNameUri, null, null, null);
+
+ // Move to the first row.
+ contentResolverCursor.moveToFirst();
+
+ // Get the file name from the cursor.
+ fileNameString = contentResolverCursor.getString(contentResolverCursor.getColumnIndex(OpenableColumns.DISPLAY_NAME));
+
+ // Close the cursor.
+ contentResolverCursor.close();
+ } else {
+ // Use the URI last path segment as the file name string.
+ fileNameString = fileNameUri.getLastPathSegment();
+ }
}
// `onPreExecute()` operates on the UI thread.
}
// Create a saving image snackbar.
- savingImageSnackbar = Snackbar.make(aboutVersionLinearLayout, activity.getString(R.string.processing_image) + " " + filePathString, Snackbar.LENGTH_INDEFINITE);
+ savingImageSnackbar = Snackbar.make(aboutVersionLinearLayout, activity.getString(R.string.processing_image) + " " + fileNameString, Snackbar.LENGTH_INDEFINITE);
// Display the saving image snackbar.
savingImageSnackbar.show();
// Convert the bitmap to a PNG. `0` is for lossless compression (the only option for a PNG). This compression takes a long time. Once the minimum API >= 30 this could be replaced with WEBP_LOSSLESS.
aboutVersionBitmap.compress(Bitmap.CompressFormat.PNG, 0, aboutVersionByteArrayOutputStream);
- // Get a file for the image.
- File imageFile = new File(filePathString);
-
- // Delete the current file if it exists.
- if (imageFile.exists()) {
- //noinspection ResultOfMethodCallIgnored
- imageFile.delete();
- }
-
// Create a file creation disposition string.
String fileCreationDisposition = SUCCESS;
try {
- // Create an image file output stream.
- FileOutputStream imageFileOutputStream = new FileOutputStream(imageFile);
+ // Open an output stream.
+ OutputStream outputStream = activity.getContentResolver().openOutputStream(fileNameUri);
// Write the webpage image to the image file.
- aboutVersionByteArrayOutputStream.writeTo(imageFileOutputStream);
-
- // Create a media scanner intent, which adds items like pictures to Android's recent file list.
- Intent mediaScannerIntent = new Intent(Intent.ACTION_MEDIA_SCANNER_SCAN_FILE);
-
- // Add the URI to the media scanner intent.
- mediaScannerIntent.setData(Uri.fromFile(imageFile));
+ aboutVersionByteArrayOutputStream.writeTo(outputStream);
- // Make it so.
- activity.sendBroadcast(mediaScannerIntent);
+ // Close the output stream.
+ outputStream.close();
} catch (Exception exception) {
// Store the error in the file creation disposition string.
fileCreationDisposition = exception.toString();
@Override
protected void onPostExecute(String fileCreationDisposition) {
// Get handles for the weak references.
- Context context = contextWeakReference.get();
Activity activity = activityWeakReference.get();
LinearLayout aboutVersionLinearLayout = aboutVersionLinearLayoutWeakReference.get();
// Display a file creation disposition snackbar.
if (fileCreationDisposition.equals(SUCCESS)) {
// Create a file saved snackbar.
- Snackbar imageSavedSnackbar = Snackbar.make(aboutVersionLinearLayout, activity.getString(R.string.file_saved) + " " + filePathString, Snackbar.LENGTH_SHORT);
-
- // Add an open action.
- imageSavedSnackbar.setAction(R.string.open, (View view) -> {
- // Get a file for the file path string.
- File file = new File(filePathString);
-
- // Declare a file URI variable.
- Uri fileUri;
-
- // Get the URI for the file according to the Android version.
- if (Build.VERSION.SDK_INT >= 24) { // Use a file provider.
- fileUri = FileProvider.getUriForFile(context, activity.getString(R.string.file_provider), file);
- } else { // Get the raw file path URI.
- fileUri = Uri.fromFile(file);
- }
-
- // Get a handle for the content resolver.
- ContentResolver contentResolver = context.getContentResolver();
-
- // Create an open intent with `ACTION_VIEW`.
- Intent openIntent = new Intent(Intent.ACTION_VIEW);
-
- // Autodetect the MIME type.
- openIntent.setDataAndType(fileUri, contentResolver.getType(fileUri));
-
- // Allow the app to read the file URI.
- openIntent.setFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
-
- // Show the chooser.
- activity.startActivity(Intent.createChooser(openIntent, context.getString(R.string.open)));
- });
-
- // Show the image saved snackbar.
- imageSavedSnackbar.show();
+ Snackbar.make(aboutVersionLinearLayout, activity.getString(R.string.file_saved) + " " + fileNameString, Snackbar.LENGTH_SHORT).show();
} else {
Snackbar.make(aboutVersionLinearLayout, activity.getString(R.string.error_saving_file) + " " + fileCreationDisposition, Snackbar.LENGTH_INDEFINITE).show();
}
projects / PrivacyBrowserAndroid.git / blobdiff