Question

我已经从FTP服务器上下载了一些Office文件（doc，xls，pdf等），现在我想使用第三方应用程序查看这些文件。

我正在使用以下代码进行Intent（在本例中为PDF文件）：

PackageManager packageManager = getPackageManager();
        Intent intent = new Intent(Intent.ACTION_VIEW);
        intent.setType("application/pdf");


        List list = packageManager.queryIntentActivities(intent,PackageManager.MATCH_DEFAULT_ONLY);


        if (list.size() > 0) 
        {
            Uri uri_path = Uri.parse(path);
            intent.setDataAndType(uri_path, "application/pdf");
            try
            {
                startActivity(intent);
            } 
            catch (ActivityNotFoundException e)
            {
                Toast.makeText(getApplicationContext(),"No Application Available to View PDF", Toast.LENGTH_SHORT).show();
            }
        }

但是当我尝试打开文件时，白屏会出现并消失。在DDMS中，我得到以下内容：

01-14 16:14:17.900: ERROR/Quickoffice(1204): java.lang.NullPointerException
01-14 16:14:17.900: ERROR/Quickoffice(1204):     at s.a(Unknown Source)
01-14 16:14:17.900: ERROR/Quickoffice(1204):     at com.qo.android.quickcommon.OfficeActivity.a(Unknown Source)
01-14 16:14:17.900: ERROR/Quickoffice(1204):     at com.qo.android.quickcommon.OfficeActivity.a(Unknown Source)
01-14 16:14:17.900: ERROR/Quickoffice(1204):     at com.qo.android.quickword.Quickword.onCreate(Unknown Source)
01-14 16:14:17.900: ERROR/Quickoffice(1204):     at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1048)
01-14 16:14:17.900: ERROR/Quickoffice(1204):     at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1715)
01-14 16:14:17.900: ERROR/Quickoffice(1204):     at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1767)
01-14 16:14:17.900: ERROR/Quickoffice(1204):     at android.app.ActivityThread.access$1500(ActivityThread.java:122)
01-14 16:14:17.900: ERROR/Quickoffice(1204):     at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1005)
01-14 16:14:17.900: ERROR/Quickoffice(1204):     at android.os.Handler.dispatchMessage(Handler.java:99)
01-14 16:14:17.900: ERROR/Quickoffice(1204):     at android.os.Looper.loop(Looper.java:132)
01-14 16:14:17.900: ERROR/Quickoffice(1204):     at android.app.ActivityThread.main(ActivityThread.java:4028)
01-14 16:14:17.900: ERROR/Quickoffice(1204):     at java.lang.reflect.Method.invokeNative(Native Method)
01-14 16:14:17.900: ERROR/Quickoffice(1204):     at java.lang.reflect.Method.invoke(Method.java:491)
01-14 16:14:17.900: ERROR/Quickoffice(1204):     at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:844)
01-14 16:14:17.900: ERROR/Quickoffice(1204):     at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:602)
01-14 16:14:17.900: ERROR/Quickoffice(1204):     at dalvik.system.NativeStart.main(Native Method)

请帮我解决这个问题。我不明白这个问题。当我使用“ES文件资源管理器”转到SDCard并打开文件时，它会被打开。所有文件（doc xls和PDF）都可以正确打开。

Answer 1

得到了我的回答。我需要为我的URI添加以下内容：

File file = new File(path);
Uri uri_path = Uri.fromFile(file);
intent.setDataAndType(uri_path, "application/pdf");
try
{
    startActivity(intent);
} 
catch (ActivityNotFoundException e)
{
    Toast.makeText(getApplicationContext(),"No Application Available to View PDF", Toast.LENGTH_SHORT).show();
}

无法使用第三方应用程序打开office文档

1 个答案: