android 一键发布应用程序,快速构建适用于Android的Word转PDF应用程序！Aspose.Words轻松搞定...

将以下Java代码粘贴到MainActivity.java中。 package com.example.wordtopdf;

import androidx.annotation.RequiresApi;

import androidx.appcompat.app.AppCompatActivity;

import android.annotation.TargetApi;

import android.app.Activity;

import android.content.Intent;

import android.net.Uri;

import android.os.Build;

import android.os.Bundle;

import java.io.File;

import java.io.FileNotFoundException;

import java.io.IOException;

import java.io.InputStream;

import com.aspose.words.Document;

import com.aspose.words.License;

import com.github.barteksc.pdfviewer.PDFView;

import com.google.android.material.floatingactionbutton.FloatingActionButton;

import android.os.Environment;

import android.view.View;

import android.widget.TextView;

import android.widget.Toast;

@TargetApi(Build.VERSION_CODES.FROYO)

public class MainActivity extends AppCompatActivity {

private static final int PICK_PDF_FILE = 2;

private final String storageDir = Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_DOWNLOADS) + File.separator;

private final String outputPDF = storageDir + "Converted_PDF.pdf";

private TextView textView = null;

private Uri document = null;

@Override

protected void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.activity_main);

// apply the license if you have the Aspose.Words license...

applyLicense();

// get treeview and set its text

textView = (TextView) findViewById(R.id.textView);

textView.setText("Select a Word DOCX file...");

// define click listener of floating button

FloatingActionButton myFab = (FloatingActionButton) findViewById(R.id.fab);

myFab.setOnClickListener(new View.OnClickListener() {

@Override

public void onClick(View view) {

try {

// open Word file from file picker and convert to PDF

openaAndConvertFile(null);

} catch (Exception e) {

e.printStackTrace();

}

}

});

}

private void openaAndConvertFile(Uri pickerInitialUri) {

// create a new intent to open document

Intent intent = new Intent(Intent.ACTION_OPEN_DOCUMENT);

intent.addCategory(Intent.CATEGORY_OPENABLE);

// mime types for MS Word documents

String[] mimetypes = {"application/vnd.openxmlformats-officedocument.wordprocessingml.document", "application/msword"};

intent.setType("*/*");

intent.putExtra(Intent.EXTRA_MIME_TYPES, mimetypes);

// start activiy

startActivityForResult(intent, PICK_PDF_FILE);

}

@RequiresApi(api = Build.VERSION_CODES.KITKAT)

@Override

public void onActivityResult(int requestCode, int resultCode,

Intent intent) {

super.onActivityResult(requestCode, resultCode, intent);

if (resultCode == Activity.RESULT_OK) {

if (intent != null) {

document = intent.getData();

// open the selected document into an Input stream

try (InputStream inputStream =

getContentResolver().openInputStream(document);) {

Document doc = new Document(inputStream);

// save DOCX as PDF

doc.save(outputPDF);

// show PDF file location in toast as well as treeview (optional)

Toast.makeText(MainActivity.this, "File saved in: " + outputPDF, Toast.LENGTH_LONG).show();

textView.setText("PDF saved at: " + outputPDF);

// view converted PDF

viewPDFFile();

} catch (FileNotFoundException e) {

e.printStackTrace();

Toast.makeText(MainActivity.this, "File not found: " + e.getMessage(), Toast.LENGTH_LONG).show();

} catch (IOException e) {

e.printStackTrace();

Toast.makeText(MainActivity.this, e.getMessage(), Toast.LENGTH_LONG).show();

} catch (Exception e) {

e.printStackTrace();

Toast.makeText(MainActivity.this, e.getMessage(), Toast.LENGTH_LONG).show();

}

}

}

}

public void viewPDFFile() {

// load PDF into the PDFView

PDFView pdfView = (PDFView) findViewById(R.id.pdfView);

pdfView.fromFile(new File(outputPDF)).load();

}

public void applyLicense()

{

// set license

License lic= new License();

InputStream inputStream = getResources().openRawResource(R.raw.license);

try {

lic.setLicense(inputStream);

} catch (Exception e) {

e.printStackTrace();

}

}

}