答对了!!我解决的问题可以直接使用打开pdfBufferedInputStream
我创建了两个活动,第一个活动以在 webview 中加载所有 pdf。当用户单击 pdf 的链接时,pdfurl
获取 url 作为字符串,将字符串传递给下一个活动。
PdfActivity.java
final String pdfurl = view.getHitTestResult().getExtra();
Intent intent = new Intent(PdfActivity.this,PdfViewer.class);
intent.putExtra("PDFURL",pdfurl);
startActivity(intent);
第二个Activity是PdfViewer,bateksc pdfviewer从url加载pdf,编辑如上
PdfViewer.java
package ak.wp.meto.activity;
import android.app.Activity;
import android.os.AsyncTask;
import android.os.Bundle;
import android.view.KeyEvent;
import android.widget.TextView;
import android.widget.Toast;
import com.github.barteksc.pdfviewer.PDFView;
import java.io.BufferedInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.net.HttpURLConnection;
import java.net.URL;
import ak.wp.meto.R;
public class PdfViewer extends Activity {
private TextView txt; // You can remove if you don't want this
private PDFView pdf;
String value = null;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_custom_pdf);
Bundle bundle = getIntent().getExtras();
if (bundle != null) {
value = bundle.getString("PDFURL");
}
System.out.println("PRINT PDFVIEWER DATA" +value);
pdf = (PDFView) findViewById(R.id.pdfView); //github.barteksc
txt = findViewById(R.id.txtPdf);
String pdfUrl = value;
try{
new RetrievePdfStream().execute(pdfUrl);
}
catch (Exception e){
Toast.makeText(this, "Failed to load Url :" + e.toString(), Toast.LENGTH_SHORT).show();
}
}
class RetrievePdfStream extends AsyncTask<String, Void, InputStream> {
@Override
protected InputStream doInBackground(String... strings) {
InputStream inputStream = null;
try {
URL url = new URL(strings[0]);
HttpURLConnection urlConnection = (HttpURLConnection) url.openConnection();
if (urlConnection.getResponseCode() == 200) {
inputStream = new BufferedInputStream(urlConnection.getInputStream());
}
} catch (IOException e) {
return null;
}
return inputStream;
}
@Override
protected void onPostExecute(InputStream inputStream) {
pdf.fromStream(inputStream).load();
}
}
}