从我的Android应用程序中调用Adobe Reader

Question

我正在编写一个Android应用程序来在设备上显示pdf文件.我需要使用Adobe Reader的当前版本代码(35498)来显示pdf文件.我有代码来显示屏幕上的文件列表.现在我需要调用每个文档的Adobe Reader(而不是设备上安装的任何其他pdf阅读器).我不确定我是如何编码的.我是一个Android新手.任何帮助将不胜感激.

感谢提前,纳文

Answer 1

请尝试以下代码

private void loadDocInReader(String doc)
     throws ActivityNotFoundException, Exception {

    try {
                Intent intent = new Intent();

                intent.setPackage("com.adobe.reader");
                intent.setDataAndType(Uri.parse(doc), "application/pdf");

                startActivity(intent);

    } catch (ActivityNotFoundException activityNotFoundException) {
                activityNotFoundException.printStackTrace();

                throw activityNotFoundException;
    } catch (Exception otherException) {
                otherException.printStackTrace();

                throw otherException;
    }
}

Answer 2

我看到你想要专门打开Adobe,但你可能想要考虑采用类似于Android的方式来打开一般意图并允许用户选择它如何打开.供您参考,您可以使用以下代码执行此操作:

private void openFile(File f, String mimeType)
{
    Intent viewIntent = new Intent();
    viewIntent.setAction(Intent.ACTION_VIEW);
    viewIntent.setDataAndType(Uri.fromFile(file), mimeType);
    // using the packagemanager to query is faster than trying startActivity
    // and catching the activity not found exception, which causes a stack unwind.
    List<ResolveInfo> resolved = getPackageManager().queryIntentActivities(viewIntent, 0);
    if(resolved != null && resolved.size() > 0)
    {
        startActivity(viewIntent);
    }
    else
    {
        // notify the user they can't open it.
    }
}

如果您确实需要专门使用Abode Reader和特定版本,则需要使用它来查询它 PackageManager.getPackageInfo(String, int)

Answer 3

如果您处于"在线模式",这是一个使用Google文档的有趣替代解决方案.

String myPDFURL = "http://{link of your pdf file}";

String link;
try {
    link = "http://docs.google.com/viewer?url="
    + URLEncoder.encode(myPDFURL, "UTF-8")
    + "&embedded=true";
} catch (Exception e) {
    e.printStackTrace();
}

Uri uri = Uri.parse(link);
Intent intent = new Intent(Intent.ACTION_VIEW, uri);
startActivity(intent);