Read a PDF File from Assets Folder
Problem:
In an Android application, attempts to read a PDF file from the assets folder using the provided code result in the error message "The file path is not valid."
Code:
The relevant code section is as follows:
1 2 3 4 5 | <code class = "java" >File file = new File( "android.resource://com.project.datastructure/assets/abc.pdf" );
Intent intent = new Intent(Intent.ACTION_VIEW);
intent.setDataAndType(Uri.fromFile(file), "application/pdf" );
startActivity(intent);</code>
|
Copy after login
Solution:
The issue lies in the path provided to the File object. The correct path should retrieve the PDF file from the assets folder using getAssets().
1 2 3 4 5 6 7 8 9 10 11 12 | <code class = "java" >AssetManager assetManager = getAssets();
InputStream in = assetManager.open( "abc.pdf" );
OutputStream out = openFileOutput( "abc.pdf" , Context.MODE_WORLD_READABLE);
copyFile(in, out);
Intent intent = new Intent(Intent.ACTION_VIEW);
intent.setDataAndType(Uri.parse( "file://" + getFilesDir() + "/abc.pdf" ), "application/pdf" );
startActivity(intent);</code>
|
Copy after login
Additional Notes:
- Don't forget to add the WRITE_EXTERNAL_STORAGE permission to the manifest file.
- The copyFile() method is used to copy the PDF file from the assets folder to internal storage, making it accessible by the Intent.
- The URI is constructed using Uri.parse() to point to the file's location in internal storage.
The above is the detailed content of Why is my Android app throwing a 'The file path is not valid' error when trying to read a PDF from the assets folder?. For more information, please follow other related articles on the PHP Chinese website!