blocks|key|1407303|text|尝试使用android:mimeType，而不是android:path，它的值是这段特定内容的MIME类型。此外，android:path不接受通配符--为此使用android:pathPattern。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|1407304|entityMap|0|LINK|mutability|MUTABLE|url|http://developer.android.com/guide/topics/manifest/data-element.html#mime|1|http://developer.android.com/guide/topics/manifest/data-element.html#path^0|4|G|O|C|1M|C|2A|J|4|G|0|2A|J|1|0^^$0|@$1|2|3|4|5|6|7|P|8|@$9|Q|A|R|B|C]|$9|S|A|T|B|C]|$9|U|A|V|B|C]|$9|W|A|X|B|C]]|D|@$9|Y|A|Z|1|10]|$9|11|A|12|1|13]]|E|$]]|$1|F|3|-4|5|6|7|14|8|@]|D|@]|E|$]]]|G|$H|$5|I|J|K|E|$L|M]]|N|$5|I|J|K|E|$L|O]]]]

Rather than <code>android:path</code>, try <a href="http://developer.android.com/guide/topics/manifest/data-element.html#mime" rel="noreferrer"><code>android:mimeType</code></a>, with a value of the MIME type of this particular piece of content. Also, <code>android:path</code> does not accept wildcards -- use <a href="http://developer.android.com/guide/topics/manifest/data-element.html#path" rel="noreferrer"><code>android:pathPattern</code></a> for that.

blocks|key|1191978|text|下面是我如何在我的AndroidManifest.xml中定义我的活动以使其正常工作。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1191979|<activity+android:name="com.keepassdroid.PasswordActivity">
++++<intent-filter>
++++++++<action+android:name="android.intent.action.VIEW"+/>
++++++++<category+android:name="android.intent.category.DEFAULT"+/>
++++++++<category+android:name="android.intent.category.BROWSABLE"+/>
++++++++<data+android:scheme="file"+/>
++++++++<data+android:mimeType="*/*"+/>
++++++++<data+android:pathPattern=".*\\.kdb"+/>
++++++++<data+android:host="*"+/>
++++</intent-filter>
</activity>|code-block|syntax|javascript|1191980|file的scheme指示这应该在打开本地文件时发生(而不是像HTTP这样的协议)。|offset|length|style|CODE|1191981|可以将mimeType设置为*/*以匹配任何mime类型。|1191982|在pathPattern中，您可以指定要匹配的扩展名(本例中为.kdb)。开头的.*匹配任何字符序列。这些字符串需要双重转义，因此\\\\.匹配文字句点。然后，以您的文件扩展名结束。关于pathPattern的一个警告是，.*不是一个贪婪的匹配，如果这是一个正则表达式，您会认为它是一个贪婪的匹配。此模式将无法匹配在.kdb之前包含.的路径。有关此问题的更详细讨论和解决方法，请参阅here|1191983|最后，根据Android文档，host和scheme属性都是pathPattern属性工作所必需的，所以只需将其设置为通配符就可以匹配任何内容。|1191984|现在，如果你在像Linda+file+Manager这样的应用程序中选择了一个.kdb文件，我的应用程序就会显示为一个选项。我应该注意的是，这本身并不允许您在浏览器中下载此文件类型，因为这只在文件方案中注册。在你的手机上安装一个像Linda+File+Manager这样的应用程序，通常会让你下载任何类型的文件。|1191985|entityMap|0|LINK|mutability|MUTABLE|url|https://stackoverflow.com/questions/3400072/pathpattern-to-match-file-extension-does-not-work-if-a-period-exists-elsewhere-i/8599921#8599921^0|0|0|0|4|5|6|0|3|8|E|3|0|1|B|V|4|14|2|1T|5|33|2|4E|4|4M|1|5B|4|0|0|F|4|K|6|U|B|0|13|4|0^^$0|@$1|2|3|4|5|6|7|12|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|13|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|14|8|@$I|15|J|16|K|L]|$I|17|J|18|K|L]]|9|@]|A|$]]|$1|M|3|N|5|6|7|19|8|@$I|1A|J|1B|K|L]|$I|1C|J|1D|K|L]]|9|@]|A|$]]|$1|O|3|P|5|6|7|1E|8|@$I|1F|J|1G|K|L]|$I|1H|J|1I|K|L]|$I|1J|J|1K|K|L]|$I|1L|J|1M|K|L]|$I|1N|J|1O|K|L]|$I|1P|J|1Q|K|L]|$I|1R|J|1S|K|L]]|9|@$I|1T|J|1U|1|1V]]|A|$]]|$1|Q|3|R|5|6|7|1W|8|@$I|1X|J|1Y|K|L]|$I|1Z|J|20|K|L]|$I|21|J|22|K|L]]|9|@]|A|$]]|$1|S|3|T|5|6|7|23|8|@$I|24|J|25|K|L]]|9|@]|A|$]]|$1|U|3|-4|5|6|7|26|8|@]|9|@]|A|$]]]|V|$W|$5|X|Y|Z|A|$10|11]]]]

Here is how I defined my activity in my AndroidManifest.xml to get this to work.
<pre><code>&lt;activity android:name=&quot;com.keepassdroid.PasswordActivity&quot;&gt;
 &lt;intent-filter&gt;
 &lt;action android:name=&quot;android.intent.action.VIEW&quot; /&gt;
 &lt;category android:name=&quot;android.intent.category.DEFAULT&quot; /&gt;
 &lt;category android:name=&quot;android.intent.category.BROWSABLE&quot; /&gt;
 &lt;data android:scheme=&quot;file&quot; /&gt;
 &lt;data android:mimeType=&quot;*/*&quot; /&gt;
 &lt;data android:pathPattern=&quot;.*\\.kdb&quot; /&gt;
 &lt;data android:host=&quot;*&quot; /&gt;
 &lt;/intent-filter&gt;
&lt;/activity&gt;
</code></pre>
The <code>scheme</code> of <code>file</code> indicates that this should happen when a local file is opened (rather than protocol like HTTP).
<code>mimeType</code> can be set to <code>*/*</code> to match any mime type.
<code>pathPattern</code> is where you specify what extension you want to match (in this example <code>.kdb</code>). The <code>.*</code> at the beginning matches any squence of characters. These strings require double escaping, so <code>\\\\.</code> matches a literal period. Then, you end with your file extension. One caveat with pathPattern is that <code>.*</code> is not a greedy match like you would expect if this was a regular expression. This pattern will fail to match paths that contain a <code>.</code> before the <code>.kdb</code>. For a more detailed discussion of this issue and a workaround see <a href="https://stackoverflow.com/questions/3400072/pathpattern-to-match-file-extension-does-not-work-if-a-period-exists-elsewhere-i/8599921#8599921">here</a>
Finally, according to the Android documentation, both <code>host</code> and <code>scheme</code> attributes are required for the <code>pathPattern</code> attribute to work, so just set that to the wildcard to match anything.
Now, if you select a <code>.kdb</code> file in an app like Linda File Manager, my app shows up as an option. I should note that this alone does not allow you to download this filetype in a browser, since this only registers with the file scheme. Having an app like Linda File Manager on your phone resisters itself generically allowing you to download any file type.

blocks|key|1407449|text|Brian上面的回答让我走了90%25的路。为了完成它，对于我使用的mime类型|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1407450|android:mimeType="*/*"|code-block|syntax|javascript|1407451|我怀疑之前的帖子试图发布相同的细节，但引用了星号斜杠作为代码，stackoverflow显示它只是一个斜杠。|1407452|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|K|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|L|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|M|8|@]|9|@]|A|$]]|$1|I|3|-4|5|6|7|N|8|@]|9|@]|A|$]]]|J|$]]

Brian's answer above got me 90% of the way there. To finish it off, for mime type I used

<pre><code>android:mimeType="*/*"
</code></pre>

I suspect that previous posters have attempted to post the same detail, but the withough qoting the star slash star as code, stackoverflow diplays it as just a slash.

blocks|key|1192119|text|Brian的回答非常接近，但这里有一个干净且无错误的方法，可以让你的应用程序在尝试使用自己的自定义扩展名打开文件时调用(不需要方案或主机)：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1192120|<intent-filter>
++++<action+android:name="android.intent.action.VIEW"+/>
++++<category+android:name="android.intent.category.DEFAULT"+/>
++++<category+android:name="android.intent.category.BROWSABLE"+/>
++++<data+android:mimeType="*/*"+/>
++++<data+android:pathPattern="*.*\\.kdb"+/>
</intent-filter>|code-block|syntax|javascript|1192121|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

Brian's answer is very close, but here's a clean and error-free way to have your app invoked when trying to open a file with your own custom extension (no need for scheme or host): 

<pre><code>&lt;intent-filter&gt;
 &lt;action android:name="android.intent.action.VIEW" /&gt;
 &lt;category android:name="android.intent.category.DEFAULT" /&gt;
 &lt;category android:name="android.intent.category.BROWSABLE" /&gt;
 &lt;data android:mimeType="*/*" /&gt;
 &lt;data android:pathPattern="*.*\\.kdb" /&gt;
&lt;/intent-filter&gt;
</code></pre>

blocks|key|1192189|text|如果后缀没有在Android的system=wide+MIME数据库中注册为MIME类型，那么对于查看或发送操作，上述方法都无法正常工作。我发现在指定后缀时触发的唯一设置包括android:mimeType="*/*"，但随后该操作将在所有文件中触发。显然不是你想要的！|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|1192190|如果不将mime和后缀添加到Android+mime数据库中，我无法找到任何合适的解决方案，到目前为止，我还没有找到这样做的方法。如果有人知道，那么指针就太棒了。|1192191|entityMap^0|2F|M|0|0^^$0|@$1|2|3|4|5|6|7|J|8|@$9|K|A|L|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|M|8|@]|D|@]|E|$]]|$1|H|3|-4|5|6|7|N|8|@]|D|@]|E|$]]]|I|$]]

None of the above work properly, for VIEW or SEND actions, if the suffix is not registered with a MIME type in Android's system=wide MIME database. The only settings I've found that fire for the specified suffix include <code>android:mimeType="*/*"</code>, but then the action fires for ALL files. Clearly NOT what you want!

I can't find any proper solution without adding the mime and suffix to the Android mime database, so far, I haven't found a way to do that. If anyone knows, a pointer would be terrific.

blocks|key|1192230|text|在Android4上，规则变得比以前更加严格。使用：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1192231|++++<data
++++++android:host=""
++++++android:mimeType="*/*"
++++++android:pathPattern=".*\\.ext"
++++++android:scheme="file"
++++></data>|code-block|syntax|javascript|1192232|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

On Android 4 the rules became more strict then they used to be. Use:

<pre><code> &lt;data
 android:host=""
 android:mimeType="*/*"
 android:pathPattern=".*\\.ext"
 android:scheme="file"
 &gt;&lt;/data&gt;
</code></pre>

blocks|key|1407694|text|如果你想直接从Gmail，dropbox或任何内置的android文件工具中打开文件，那么使用下面的代码(删除'android:host="*"‘，这使得gmail无法访问文件)：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1407695|<intent-filter>
++++<action+android:name="android.intent.action.VIEW"/>
++++<category+android:name="android.intent.category.BROWSABLE"/>
++++<category+android:name="android.intent.category.DEFAULT"/>
++++<data+android:scheme="content"+android:pathPattern=".*\\.kdb"+
++++++++++android:mimeType="application/octet-stream"/>


</intent-filter>

<intent-filter>
++++<action+android:name="android.intent.action.VIEW"/>
++++<category+android:name="android.intent.category.DEFAULT"/>
++++<data+android:scheme="file"+android:mimeType="*/*"+++++
++++++++++android:pathPattern=".*\\.kdb"/>
</intent-filter>|code-block|syntax|javascript|1407696|根据Android版本4.x，数据过滤器必须在一条语句中编写|1407697|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|K|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|L|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|M|8|@]|9|@]|A|$]]|$1|I|3|-4|5|6|7|N|8|@]|9|@]|A|$]]]|J|$]]

If you want the files to be opened directly from Gmail, dropbox or any of the buildin android file tools, then use the following code (delete 'android:host="*"' that made the file unreachable for gmail) :

<pre><code>&lt;intent-filter&gt;
 &lt;action android:name="android.intent.action.VIEW"/&gt;
 &lt;category android:name="android.intent.category.BROWSABLE"/&gt;
 &lt;category android:name="android.intent.category.DEFAULT"/&gt;
 &lt;data android:scheme="content" android:pathPattern=".*\\.kdb" 
 android:mimeType="application/octet-stream"/&gt;


&lt;/intent-filter&gt;

&lt;intent-filter&gt;
 &lt;action android:name="android.intent.action.VIEW"/&gt;
 &lt;category android:name="android.intent.category.DEFAULT"/&gt;
 &lt;data android:scheme="file" android:mimeType="*/*" 
 android:pathPattern=".*\\.kdb"/&gt;
&lt;/intent-filter&gt;
</code></pre>

The data filter must be written in one statement as per Android version 4.x

blocks|key|1192305|text|使用下面的过滤器从浏览器，gmail和文件浏览器(测试)打开。注意:请不要合并两个过滤器，这将使浏览器忽略您的应用程序(测试)。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1192306|++++++++<intent-filter>
++++++++++++<action+android:name="android.intent.action.VIEW"/>
++++++++++++<category+android:name="android.intent.category.DEFAULT"/>
++++++++++++<category+android:name="android.intent.category.BROWSABLE"/>

++++++++++++<data+android:scheme="file"+android:pathPattern=".*\\.ext"+android:mimeType="application/*"/>
++++++++++++<data+android:scheme="content"+android:pathPattern=".*\\.ext"+android:mimeType="application/*"/>
++++++++</intent-filter>

++++++++<intent-filter>
++++++++++++++++<action+android:name="android.intent.action.VIEW"/>
++++++++++++++++<category+android:name="android.intent.category.DEFAULT"/>
++++++++++++++++<category+android:name="android.intent.category.BROWSABLE"/>
++++++++++++<data+android:scheme="http"
++++++++++++++++++android:host="*"
++++++++++++++++++android:pathPattern=".*\\.ext"+/>
++++++++++++<data+android:scheme="https"
++++++++++++++++++android:host="*"
++++++++++++++++++android:pathPattern=".*\\.ext"+/>
++++++++++++<data+android:scheme="ftp"
++++++++++++++++++android:host="*"
++++++++++++++++++android:pathPattern=".*\\.ext"+/>

++++++++</intent-filter>|code-block|syntax|javascript|1192307|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

Using the filter as below to open from browser, gmail &amp; file browser (Tested).
NOTE: Please do not merge two filters, that will make browser ignored your app(Tested). 

<pre><code> &lt;intent-filter&gt;
 &lt;action android:name="android.intent.action.VIEW"/&gt;
 &lt;category android:name="android.intent.category.DEFAULT"/&gt;
 &lt;category android:name="android.intent.category.BROWSABLE"/&gt;

 &lt;data android:scheme="file" android:pathPattern=".*\\.ext" android:mimeType="application/*"/&gt;
 &lt;data android:scheme="content" android:pathPattern=".*\\.ext" android:mimeType="application/*"/&gt;
 &lt;/intent-filter&gt;

 &lt;intent-filter&gt;
 &lt;action android:name="android.intent.action.VIEW"/&gt;
 &lt;category android:name="android.intent.category.DEFAULT"/&gt;
 &lt;category android:name="android.intent.category.BROWSABLE"/&gt;
 &lt;data android:scheme="http"
 android:host="*"
 android:pathPattern=".*\\.ext" /&gt;
 &lt;data android:scheme="https"
 android:host="*"
 android:pathPattern=".*\\.ext" /&gt;
 &lt;data android:scheme="ftp"
 android:host="*"
 android:pathPattern=".*\\.ext" /&gt;

 &lt;/intent-filter&gt;
</code></pre>

blocks|key|1407764|text|我已经尝试了很长时间了，基本上尝试了所有建议的解决方案，但仍然无法让Android识别特定的文件扩展名。我有一个带有"*/*"+mimetype的意图过滤器，这似乎是唯一有效的东西，文件浏览器现在将我的应用程序列为打开文件的选项，但是我的应用程序现在显示为打开任何类型的文件的选项，即使我已经使用pathPattern标签指定了特定的文件扩展名。即使当我试图查看/编辑联系人列表中的联系人时，Android也会询问我是否要使用我的应用程序查看联系人，这只是发生这种情况的众多情况之一，非常非常恼人。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|1407765|最终，我发现了谷歌小组的这篇帖子，里面有一个类似的问题，一个实际的Android框架工程师回答了这个问题。她解释说，安卓根本不知道什么是文件扩展名，只知道MIME类型(https://groups.google.com/forum/#!topic/android-developers/a7qsSl3vQq0)。|1407766|所以，根据我所见、所试、所读，安卓根本无法区分文件扩展名和pathPattern标签，这基本上是对时间和精力的巨大浪费。如果您足够幸运地只需要特定mime类型的文件(比如文本、视频或音频)，那么您可以使用带有mime类型的意图过滤器。但是，如果您需要Android不知道的特定文件扩展名或mime类型，那么您就不走运了。|1407767|如果我对此有任何错误，请告诉我，到目前为止，我已经阅读了每一篇文章，并尝试了我能找到的每一个建议的解决方案，但都没有奏效。|1407768|我可以再写一两个页面，讲述这类事情在Android中有多常见，以及开发人员的体验有多糟糕，但我会省去我愤怒的抱怨;)。希望我给别人省了点麻烦。|1407769|entityMap|0|LINK|mutability|MUTABLE|url|https://groups.google.com/forum/#!topic/android-developers/a7qsSl3vQq0^0|1M|5|0|2C|1Y|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|V|8|@$9|W|A|X|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|Y|8|@]|D|@$9|Z|A|10|1|11]]|E|$]]|$1|H|3|I|5|6|7|12|8|@]|D|@]|E|$]]|$1|J|3|K|5|6|7|13|8|@]|D|@]|E|$]]|$1|L|3|M|5|6|7|14|8|@]|D|@]|E|$]]|$1|N|3|-4|5|6|7|15|8|@]|D|@]|E|$]]]|O|$P|$5|Q|R|S|E|$T|U]]]]

I've been trying to get this to work for ages and have tried basicly all the suggested solutions and still cannot get Android to recognise specific file extensions. I have an intent-filter with a <code>"*/*"</code> mimetype which is the only thing that seems to work and file-browsers now list my app as an option for opening files, however my app is now shown as an option for opening ANY KIND of file even though I've specified specific file extensions using the pathPattern tag. This goes so far that even when I try to view/edit a contact in my contacts list Android asks me if I want to use my app to view the contact, and that is just one of many situations where this occurs, VERY VERY annoying.

Eventually I found this google groups post with a similar question to which an actual Android framework engineer replied. She explains that android simply does not know anything about file-extensions, only MIME-types (<a href="https://groups.google.com/forum/#!topic/android-developers/a7qsSl3vQq0" rel="noreferrer">https://groups.google.com/forum/#!topic/android-developers/a7qsSl3vQq0</a>).

So from what I've seen, tried and read, Android simply cannot distinguish between file-extensions and the pathPattern tag is basicly a gigantic waste of time and energy. If you are fortunate enough to only need files of a certain mime-type (say text, video or audio), you can use an intent-filter with a mime-type. If you need a specific file-extension or a mime-type not known by Android however then you're out of luck.

If I'm wrong about any of this please tell me, so far I've read every post and tried every proposed solution I could find but none have worked.

I could write another page or two about how common these kinds of things seem to be in Android and how screwed up the developer experience is, but I'll save you my angry rantings ;). Hope I saved someone some trouble.

I want to be able to download a file with a particular extension from the 'net, and have it passed to my application to deal with it, but I haven't been able to figure out the intent filter. The filetype is not included in the mimetypes, and I tried using 

<pre><code>&lt;data android:path="*.ext" /&gt;
</code></pre>

but I couldn't get that to work.

Android intent filter for a particular file extension?

数据库

Android

我希望能够从网络上下载一个具有特定扩展名的文件，并将其传递给我的应用程序来处理它，但我还没能弄清楚意图过滤器。<data android:path="*.ext" />但我不能让它起作用。

问针对特定文件扩展名的Android intent filter？
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