在我的应用程序中打开并查看pdf

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中文
English

问题描述

使用此代码:

try {

    URL url = new URL(aurl[0]);
    URLConnection conexion = url.openConnection();
    conexion.connect();

    int lenghtOfFile = conexion.getContentLength();
    Log.d("ANDRO_ASYNC", "Lenght of file: " + lenghtOfFile);

    InputStream input = new BufferedInputStream(url.openStream());
    FileOutputStream fos = openFileOutput("try.pdf", Context.MODE_PRIVATE);
    //PARA DESCARGARLO EN SD//
//  OutputStream output = new FileOutputStream("/sdcard/prueba.pdf");

    byte data[] = new byte[1024];

    long total = 0;

        while ((count = input.read(data)) != -1) {
            total += count;
            publishProgress(""+(int)((total*100)/lenghtOfFile));
            fos.write(data, 0, count);
        }

        fos.flush();
        fos.close();
        input.close();
    } catch (Exception e) {}
    return null;

我在申请中保持8 MB大小的PDF.我用了几个代码来试图打开它并查看它，但找不到方式.

任何建议?

其他推荐答案

嗨，请尝试以下代码.

Intent intent = new Intent(Intent.ACTION_VIEW);
intent.setDataAndType(Uri.fromFile(new File("mnt/sdcard/try.pdf")), "application/pdf");
try 
{
    startActivity(intent);
} 
catch (ActivityNotFoundException e) 
{
    // Toast Message
}

这里sFile是 sdcard路径.

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问题描述

Using this code:

try {

    URL url = new URL(aurl[0]);
    URLConnection conexion = url.openConnection();
    conexion.connect();

    int lenghtOfFile = conexion.getContentLength();
    Log.d("ANDRO_ASYNC", "Lenght of file: " + lenghtOfFile);

    InputStream input = new BufferedInputStream(url.openStream());
    FileOutputStream fos = openFileOutput("try.pdf", Context.MODE_PRIVATE);
    //PARA DESCARGARLO EN SD//
//  OutputStream output = new FileOutputStream("/sdcard/prueba.pdf");

    byte data[] = new byte[1024];

    long total = 0;

        while ((count = input.read(data)) != -1) {
            total += count;
            publishProgress(""+(int)((total*100)/lenghtOfFile));
            fos.write(data, 0, count);
        }

        fos.flush();
        fos.close();
        input.close();
    } catch (Exception e) {}
    return null;

I keep in the application a PDF of 8 MB size. I've used several codes to try to open it and view it but can not find the way.

Any suggestions?

其他推荐答案

Hi Please try below code.

Intent intent = new Intent(Intent.ACTION_VIEW);
intent.setDataAndType(Uri.fromFile(new File("mnt/sdcard/try.pdf")), "application/pdf");
try 
{
    startActivity(intent);
} 
catch (ActivityNotFoundException e) 
{
    // Toast Message
}

Here sFile is SDcard Path.

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