How Can I Display a PDF File Within My Android Activity?

Viewing PDF in Android Activities

In Android applications, it's possible to receive binary data as a stream and save it as a PDF file on the device. However, simply saving is insufficient, as you'll need to render the PDF and display it within your activity.

For certain Android devices, such as the Nexus One, rendering is simplified due to pre-installed versions of Quickoffice. To exploit this, follow these steps once the PDF is saved on the SD card:

1. Create an Intent to open the appropriate file.
2. Specify the file path and MIME type (application/pdf).
3. Set flags to handle the intent appropriately.

Below is a sample Java code snippet demonstrating these steps:

public class OpenPdf extends Activity {
    public void onCreate(Bundle savedInstanceState) {
        File file = new File("/sdcard/example.pdf");
        if (file.exists()) {
            Uri path = Uri.fromFile(file);
            Intent intent = new Intent(Intent.ACTION_VIEW);
            intent.setDataAndType(path, "application/pdf");
            intent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
            try {
                startActivity(intent);
            } catch (ActivityNotFoundException e) {
                Toast.makeText(OpenPdf.this, 
                    "No Application Available to View PDF", 
                    Toast.LENGTH_SHORT).show();
            }
        }
    }
}

By following these steps, you can seamlessly render and display PDF files within your Android application, allowing users to view them conveniently within the context of your activity.

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