是否有可能隐藏意图AppChooser一些应用程序？

问题描述：

我想在我的应用程序中打开PDF文件时隐藏web浏览器。我想只显示PDF阅读器应用程序，如果没有则显示警告信息。

What I want is to hide WebBrowser when opening PDF file in my application. I would like to show only PDF reader application, if not have then display alert message.

现在我可以创建AppChooser对话，但我不知道如何隐藏某些应用程序。

Now I can create AppChooser dialog but I don't know how to hide some application.

非常感谢你！

答

您已经开始选择器之前，查询可用的应用程序。而你需要知道一些关于要排除的应用程序。例如包名称

You have to query for available Apps before starting the chooser. And you need to know something about the app you want to exclude. FOr example the packagename

Intent pdfIntent = ...;
PackageManager pm = getPackageManager();
List<ResolveInfo> activities = pm.queryIntentActivities(pdfIntent, 0);

List<Intent> targetPDFIntents = new ArrayList<Intent>();
for (ResolveInfo currentInfo : activities) {
    String packageName = currentInfo.activityInfo.packageName;
if (!"pageToExclude".equals(packageName)) {
        Intent targetPdfIntent = new Intent(android.content.Intent.ACTION_VIEW, exportData);
        targetPdfIntent.setPackage(packageName);
        targetPDFIntents.add(targetPdfIntent);
    }
}

Intent chooserIntent = Intent.createChooser(targetPDFIntents.remove(0), "title");               
chooserIntent.putExtra(Intent.EXTRA_INITIAL_INTENTS, targetPDFIntents.toArray(new Parcelable[] {}));
startActivity(chooserIntent);

随着你开始一个包明确的活动列表的选择器。和他们都可以处理这是在第一行中创建的IntentType pdfIntent。

With that you start a chooser with a list of explicit activity of a packages. And all of them can handle the IntentType pdfIntent which is created in the first line.

是否有可能隐藏意图AppChooser一些应用程序？

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