根据已安装的 Android 包名称自定义过滤意图选择器 [英] Custom filtering of intent chooser based on installed Android package name

问题描述

我想利用内置的意图选择器来显示自定义过滤的应用列表，供用户选择和启动.

I'd like to leverage the built-in intent chooser to display a custom filtered list of apps for user to select from and launch.

我知道如何获取已安装软件包的列表:

I know how to get a list of installed packages:

final Intent myIntent = new Intent(android.content.Intent.ACTION_MAIN);  
List<ResolveInfo> resInfoList = getPackageManager().queryIntentActivities(myIntent, 0);

此时我想根据包名称中包含的特定字符串(或字符串的变体)过滤列表，我也可以弄清楚如何做.

At this point I want to filter the list based on a specific string (or variation of strings) contained within the package name, which I can figure out how to do as well.

但这就是我卡住的地方.据我所知，Intent.createChooser() 只接受一个目标 Intent 作为参数.我希望有一个基于包和类名或其他东西的意图列表的重载.但我没有看到类似的东西.我在某个地方错过了吗?

But here's where I get stuck. As far as I know, Intent.createChooser() takes only a single target Intent as a parameter. I was hoping there was an overload that took a list of intents based on package and class names or something. But I don't see anything like that. Did I miss that somewhere?

所以问题是，这是否可以使用内置选择器来实现，还是我必须使用 AlertDialog Builder 构建自己的选择器?我希望避免后者.

So the question is, is this possible to do with a built-in chooser, or do I have to construct my own with AlertDialog Builder? I'm hoping to avoid the later.

提前致谢.

推荐答案

选择器唯一的一个附加参数是 Intent.EXTRA_INITIAL_INTENTS.它的描述是:

The only one additional parameter for the chooser is Intent.EXTRA_INITIAL_INTENTS. Its description is:

Intent 或 LabeledIntent 对象的 Parcelable[] 与 putExtra(String, Parcelable[]) 附加活动的集合，以放置一个选项列表的前面，当显示给用户时带有 ACTION_CHOOSER.

A Parcelable[] of Intent or LabeledIntent objects as set with putExtra(String, Parcelable[]) of additional activities to place a the front of the list of choices, when shown to the user with a ACTION_CHOOSER.

我没有在 Android 资源中找到任何方法从列表中排除其他活动，因此似乎无法使用选择器执行您想做的事情.

I haven't found any way in Android sources to exclude other activities from the list, so it seems there's no way to do what you want to do using the chooser.

编辑:这很容易找到.只需检查 Choosera> 和 Resolver> 源代码.这些课程相当小.

EDIT: That's really easy to find out. Just check ChooserActivity and ResolverActivity source code. These classes are rather small.

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