blocks|key|1138837|text|尝试添加|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1138838|<action+android:name="android.intent.action.VIEW"/>|code-block|syntax|javascript|1138839|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|$]]

Try adding 

<pre><code>&lt;action android:name="android.intent.action.VIEW"/&gt;
</code></pre>

blocks|key|924402|text|您需要多个意图过滤器来处理您想要处理的不同情况。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|924403|示例1，处理不带mimetype的http请求：|924404|++<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="http"+/>
++++<data+android:host="*"+/>
++++<data+android:pathPattern=".*\\.pdf"+/>
++</intent-filter>|code-block|syntax|javascript|924405|处理mimetype，其中后缀是不相关的：|924406|++<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="http"+/>
++++<data+android:host="*"+/>
++++<data+android:mimeType="application/pdf"+/>
++</intent-filter>|924407|处理来自文件浏览器应用程序的意图：|924408|++<intent-filter>
++++<action+android:name="android.intent.action.VIEW"+/>
++++<category+android:name="android.intent.category.DEFAULT"+/>
++++<data+android:scheme="file"+/>
++++<data+android:host="*"+/>
++++<data+android:pathPattern=".*\\.pdf"+/>
++</intent-filter>|924409|entityMap^0|0|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|S|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|T|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|U|8|@]|9|@]|A|$G|H]]|$1|I|3|J|5|6|7|V|8|@]|9|@]|A|$]]|$1|K|3|L|5|F|7|W|8|@]|9|@]|A|$G|H]]|$1|M|3|N|5|6|7|X|8|@]|9|@]|A|$]]|$1|O|3|P|5|F|7|Y|8|@]|9|@]|A|$G|H]]|$1|Q|3|-4|5|6|7|Z|8|@]|9|@]|A|$]]]|R|$]]

You need multiple intent filters to address different situation you want to handle.

Example 1, handle http requests without mimetypes:

<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="http" /&gt;
 &lt;data android:host="*" /&gt;
 &lt;data android:pathPattern=".*\\.pdf" /&gt;
 &lt;/intent-filter&gt;
</code></pre>

Handle with mimetypes, where the suffix is irrelevant:

<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="http" /&gt;
 &lt;data android:host="*" /&gt;
 &lt;data android:mimeType="application/pdf" /&gt;
 &lt;/intent-filter&gt;
</code></pre>

Handle intent from a file browser app:

<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;data android:scheme="file" /&gt;
 &lt;data android:host="*" /&gt;
 &lt;data android:pathPattern=".*\\.pdf" /&gt;
 &lt;/intent-filter&gt;
</code></pre>

blocks|key|1138926|text|The+pathPattern|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|1138927|<data+android:pathPattern=".*\\.pdf"+/>|code-block|syntax|javascript|1138928|如果文件路径在".pdf“前包含一个或多个点，则不起作用。|1138929|这将会起作用：|1138930|<data+android:pathPattern=".*\\.pdf"+/>
<data+android:pathPattern=".*\\..*\\.pdf"+/>
<data+android:pathPattern=".*\\..*\\..*\\.pdf"+/>
<data+android:pathPattern=".*\\..*\\..*\\..*\\.pdf"+/>|1138931|如果你想支持更多的点，可以添加更多的点。|1138932|entityMap^0|4|B|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|U|8|@$9|V|A|W|B|C]]|D|@]|E|$]]|$1|F|3|G|5|H|7|X|8|@]|D|@]|E|$I|J]]|$1|K|3|L|5|6|7|Y|8|@]|D|@]|E|$]]|$1|M|3|N|5|6|7|Z|8|@]|D|@]|E|$]]|$1|O|3|P|5|H|7|10|8|@]|D|@]|E|$I|J]]|$1|Q|3|R|5|6|7|11|8|@]|D|@]|E|$]]|$1|S|3|-4|5|6|7|12|8|@]|D|@]|E|$]]]|T|$]]

The <code>pathPattern</code> 

<pre><code>&lt;data android:pathPattern=".*\\.pdf" /&gt;
</code></pre>

does not work if the file path contains one or more dots before ".pdf".

This will work:

<pre><code>&lt;data android:pathPattern=".*\\.pdf" /&gt;
&lt;data android:pathPattern=".*\\..*\\.pdf" /&gt;
&lt;data android:pathPattern=".*\\..*\\..*\\.pdf" /&gt;
&lt;data android:pathPattern=".*\\..*\\..*\\..*\\.pdf" /&gt;
</code></pre>

Add more if you want to support more dots.

blocks|key|1138962|text|其他的解决方案对我来说并不可靠，直到我添加了：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1138963|android:mimeType="*/*"+|code-block|syntax|javascript|1138964|在此之前，它在一些应用程序中工作，在一些应用程序中不起作用。|1138965|为我提供完整的解决方案：|1138966|<intent-filter>
++<action+android:name="android.intent.action.VIEW"+/>
++<category+android:name="android.intent.category.DEFAULT"+/>
++<data+android:scheme="file"++android:host="*"+android:pathPattern=".*\\.EXT"+android:mimeType="*/*"++/>
</intent-filter>|1138967|entityMap^0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|O|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|P|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|Q|8|@]|9|@]|A|$]]|$1|I|3|J|5|6|7|R|8|@]|9|@]|A|$]]|$1|K|3|L|5|D|7|S|8|@]|9|@]|A|$E|F]]|$1|M|3|-4|5|6|7|T|8|@]|9|@]|A|$]]]|N|$]]

The other solutions did not work reliably for me until I added:

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

Before that it worked in some applications, in some not...

complete solution for me:

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

blocks|key|924521|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|924522|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)。|924523|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。|924524|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。|924525|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。|924526|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="nofollow 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.

blocks|key|924567|text|对于Gmail附件，您可以使用：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|924568|<intent-filter+android:label="@string/app_name">
++<action+android:name="android.intent.action.VIEW"+/>
++<category+android:name="android.intent.category.DEFAULT"+/>
++<data+android:scheme="content"+/>
++<data+android:mimeType="application/pdf"+/>+
++<data+android:mimeType="application/msword"+/>+
++<data+android:mimeType="application/vnd.openxmlformats-officedocument.wordprocessingml.document"+/>+
++<data+android:mimeType="application/vnd.ms-excel"+/>++
++<data+android:mimeType="application/vnd.openxmlformats-officedocument.spreadsheetml.sheet"+/>++
++<data+android:mimeType="application/vnd.ms-powerpoint"+/>++
++<data+android:mimeType="application/vnd.openxmlformats-officedocument.presentationml.presentation"+/>+
++<data+android:mimeType="application/vnd.openxmlformats-officedocument.presentationml.slideshow"+/>+
++<data+android:mimeType="application/zip"+/>+
++<data+android:mimeType="image/jpeg"+/>+
++<data+android:mimeType="image/png"+/>+
++<data+android:mimeType="image/gif"+/>+
++<data+android:mimeType="text/plain"+/>+|code-block|syntax|javascript|924569|​|924570|根据需要添加任意数量的mime类型。我只需要为我的项目。|924571|entityMap^0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|N|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|O|8|@]|9|@]|A|$]]|$1|I|3|J|5|6|7|P|8|@]|9|@]|A|$]]|$1|K|3|-4|5|6|7|Q|8|@]|9|@]|A|$]]]|L|$]]

For Gmail attachment, you can use:

<pre><code>&lt;intent-filter android:label="@string/app_name"&gt;
 &lt;action android:name="android.intent.action.VIEW" /&gt;
 &lt;category android:name="android.intent.category.DEFAULT" /&gt;
 &lt;data android:scheme="content" /&gt;
 &lt;data android:mimeType="application/pdf" /&gt; &lt;!-- .pdf --&gt;
 &lt;data android:mimeType="application/msword" /&gt; &lt;!-- .doc / .dot --&gt;
 &lt;data android:mimeType="application/vnd.openxmlformats-officedocument.wordprocessingml.document" /&gt; &lt;!-- .docx --&gt;
 &lt;data android:mimeType="application/vnd.ms-excel" /&gt; &lt;!-- .xls / .xlt / .xla --&gt;
 &lt;data android:mimeType="application/vnd.openxmlformats-officedocument.spreadsheetml.sheet" /&gt; &lt;!-- .xlsx --&gt;
 &lt;data android:mimeType="application/vnd.ms-powerpoint" /&gt; &lt;!-- .ppt / .pps / .pot / .ppa --&gt;
 &lt;data android:mimeType="application/vnd.openxmlformats-officedocument.presentationml.presentation" /&gt; &lt;!-- .pptx --&gt;
 &lt;data android:mimeType="application/vnd.openxmlformats-officedocument.presentationml.slideshow" /&gt; &lt;!-- .ppsx --&gt;
 &lt;data android:mimeType="application/zip" /&gt; &lt;!-- .zip --&gt;
 &lt;data android:mimeType="image/jpeg" /&gt; &lt;!-- .jpeg --&gt;
 &lt;data android:mimeType="image/png" /&gt; &lt;!-- .png --&gt;
 &lt;data android:mimeType="image/gif" /&gt; &lt;!-- .gif --&gt;
 &lt;data android:mimeType="text/plain" /&gt; &lt;!-- .txt / .text / .log / .c / .c++ / ... --&gt;
</code></pre>



Add as many mime types as needed. I only need those for my project.

blocks|key|1139131|text|+++++++++
++++++++<intent-filter>
++++++++++++<action+android:name="android.intent.action.VIEW"+/>
++++++++++++<category+android:name="android.intent.category.DEFAULT"+/>
++++++++++++<data+android:scheme="file"+/>
++++++++++++<data+android:mimeType="*/*"+/>
++++++++++++<data+android:host="*"+/>
++++++++++++<data+android:pathPattern=".*\\.teamz"+/>
++++++++</intent-filter>

++++++++
++++++++<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:host="gmail-ls"+android:scheme="content"+android:mimeType="application/octet-stream"/>
++++++++</intent-filter>|type|code-block|depth|inlineStyleRanges|entityRanges|data|syntax|javascript|1139132|请注意，这将使您的应用程序打开所有gmail文件附件，没有办法解决此问题|unstyled|1139133|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$B|C]]|$1|D|3|E|5|F|7|J|8|@]|9|@]|A|$]]|$1|G|3|-4|5|F|7|K|8|@]|9|@]|A|$]]]|H|$]]

<pre><code> &lt;!--
 Works for Files, Drive and DropBox
 --&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" /&gt;
 &lt;data android:mimeType="*/*" /&gt;
 &lt;data android:host="*" /&gt;
 &lt;data android:pathPattern=".*\\.teamz" /&gt;
 &lt;/intent-filter&gt;

 &lt;!--
 Works for Gmail
 --&gt;
 &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:host="gmail-ls" android:scheme="content" android:mimeType="application/octet-stream"/&gt;
 &lt;/intent-filter&gt;
</code></pre>

Notice that this will get your app open all gmail file attachments, there is no way to work around it

blocks|key|924671|text|Markus+Ressel是正确的。Android+7.0+Nougat不再允许使用文件URI在应用程序之间共享文件。必须使用内容URI。但是，内容URI不允许共享文件路径，只允许共享mime类型。因此，您无法使用内容URI将您的应用程序与您自己的文件扩展名相关联。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|924672|Drobpox在Android7.0上有一个有趣的行为。当它遇到未知的文件扩展名时，它似乎形成了一个文件URI意图，但它并没有启动意图，而是调用操作系统来找出哪些应用程序可以接受该意图。如果只有一个应用程序可以接受该文件URI，那么它将直接向该应用程序发送一个显式的内容URI。因此，要使用Dropbox，您不需要更改应用程序上的意图过滤器。它不需要内容URI意图过滤器。只要确保应用程序可以接收内容URI，并且您的应用程序具有自己的文件扩展名，就可以像在Android+7.0之前一样使用Dropbox。|924673|下面是我的文件加载代码的一个示例，修改后的代码接受内容URI：|924674|Uri+uri+=+getIntent().getData();
if+(uri+!=+null)+{
++++File+myFile+=+null;
++++String+scheme+=+uri.getScheme();
++++if+(scheme.equals("file"))+{
++++++++String+fileName+=+uri.getEncodedPath();
++++++++myFile+=+new+File(filename);
++++}
++++else+if+(!scheme.equals("content"))+{
++++++++//error
++++++++return;
++++}
++++try+{
++++++++InputStream+inStream;
++++++++if+(myFile+!=+null)+inStream+=+new+FileInputStream(myFile);
++++++++else+inStream+=+getContentResolver().openInputStream(uri);
++++++++InputStreamReader+rdr+=+new+InputStreamReader(inStream);
++++++++...
++++}
}|code-block|syntax|javascript|924675|entityMap^0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|N|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|O|8|@]|9|@]|A|$]]|$1|F|3|G|5|H|7|P|8|@]|9|@]|A|$I|J]]|$1|K|3|-4|5|6|7|Q|8|@]|9|@]|A|$]]]|L|$]]

Markus Ressel is correct. Android 7.0 Nougat no longer permits file sharing between apps using a file URI. A content URI must be used. However, a content URI does not allow a file path to be shared, only a mime type. So you cannot use a content URI to associate your app with your own file extension.

Drobpox has an interesting behavior on Android 7.0. When it meets an unknown file extension it appears to form a file URI intent but instead of launching the intent it calls the operating system to find out which apps can accept the intent. If there is only one app that can accept that file URI it then sends an explicit content URI directly to that app. So to work with Dropbox you do not need to change the intent filters on your app. It does not require a content URI intent filter. Just make sure the app can receive a content URI and your app with your own file extension will work with Dropbox just like it did before Android 7.0.

Here is an example of my file loading code modified to accept a content URI:

<pre><code>Uri uri = getIntent().getData();
if (uri != null) {
 File myFile = null;
 String scheme = uri.getScheme();
 if (scheme.equals("file")) {
 String fileName = uri.getEncodedPath();
 myFile = new File(filename);
 }
 else if (!scheme.equals("content")) {
 //error
 return;
 }
 try {
 InputStream inStream;
 if (myFile != null) inStream = new FileInputStream(myFile);
 else inStream = getContentResolver().openInputStream(uri);
 InputStreamReader rdr = new InputStreamReader(inStream);
 ...
 }
}
</code></pre>

blocks|key|924744|text|那些对其他文件管理器\资源管理器应用程序有问题的人，如@yuku和@phyrum-tea回答|type|unstyled|depth|inlineStyleRanges|entityRanges|data|924745|这适用于LG默认文件管理器应用程序|924746|+++++<intent-filter+android:label="@string/app_name_decrypt">
++++++++++++<action+android:name="android.intent.action.VIEW"+/>
++++++++++++<category+android:name="android.intent.category.DEFAULT"+/>
++++++++++++<data+android:scheme="file"+/>
++++++++++++<data+android:pathPattern=".*\\.lock"+/>
++++++++++++<data+android:pathPattern=".*\\..*\\.lock"+/>
++++++++++++<data+android:pathPattern=".*\\..*\\..*\\.lock"+/>
++++++++</intent-filter>|code-block|syntax|javascript|924747|但是无法使用ES文件资源管理器和其他文件管理器，所以我添加了|924748|+android:mimeType="*/*"|924749|但LG文件管理器无法检测到文件类型，所以我的解决方案是|924750|+++++<intent-filter+android:label="@string/app_name_decrypt">
++++++++++++<action+android:name="android.intent.action.VIEW"+/>
++++++++++++<category+android:name="android.intent.category.DEFAULT"+/>
++++++++++++<data+android:scheme="file"+/>
++++++++++++<data+android:pathPattern=".*\\.lock"+/>
++++++++++++<data+android:pathPattern=".*\\..*\\.lock"+/>
++++++++++++<data+android:pathPattern=".*\\..*\\..*\\.lock"+/>
++++++++</intent-filter>
++++++++<intent-filter+android:label="@string/app_name_decrypt">
++++++++++++<action+android:name="android.intent.action.VIEW"+/>
++++++++++++<category+android:name="android.intent.category.DEFAULT"+/>
++++++++++++<data+android:scheme="file"/>
++++++++++++<data+android:scheme="content"+/>
++++++++++++<data+android:mimeType="*/*"+/>
++++++++++++<data+android:pathPattern=".*\\.lock"+/>
++++++++++++<data+android:pathPattern=".*\\..*\\.lock"+/>
++++++++++++<data+android:pathPattern=".*\\..*\\..*\\.lock"+/>
++++++++</intent-filter>|924751|entityMap^0|0|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|S|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|T|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|U|8|@]|9|@]|A|$G|H]]|$1|I|3|J|5|6|7|V|8|@]|9|@]|A|$]]|$1|K|3|L|5|F|7|W|8|@]|9|@]|A|$G|H]]|$1|M|3|N|5|6|7|X|8|@]|9|@]|A|$]]|$1|O|3|P|5|F|7|Y|8|@]|9|@]|A|$G|H]]|$1|Q|3|-4|5|6|7|Z|8|@]|9|@]|A|$]]]|R|$]]

Those who having issue with other File Manager\Explorer apps, as @yuku and @phyrum-tea answered

This works with LG default file manager app

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

but could not work with ES File Explorer and other File Managers so i added 

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

then it works with ES Explorer but LG file manager could not detect file type so my solution is 

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

blocks|key|924792|text|内容URI+ftw，以及清单中的意图筛选器...如果您的文件具有自定义扩展名.xyz，请添加匹配的mime类型：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|924793|++++++++<intent-filter>
++++++++++++<action+android:name="android.intent.action.VIEW"+/>

++++++++++++<category+android:name="android.intent.category.DEFAULT"+/>

++++++++++++<data
++++++++++++++++android:host="*"
++++++++++++++++android:mimeType="application/xyz"
++++++++++++++++android:scheme="content"+/>
++++++++</intent-filter>|code-block|syntax|javascript|924794|一些应用程序，如电子邮件，似乎将扩展名转换为mime类型。现在，我可以点击电子邮件中的附件，并在我的应用程序中打开它。|924795|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|$]]

Content URI ftw, and with the intent filter in the manifest... if your files have a custom extension .xyz, add a matching mime type:

<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;data
 android:host="*"
 android:mimeType="application/xyz"
 android:scheme="content" /&gt;
 &lt;/intent-filter&gt;
</code></pre>

Some apps such as email seem to convert the extension into a mime type. Now I can click on the attachment in email and have it open in my app.

blocks|key|924824|text|将这个意图过滤器放在你想要打开的清单中的activity标签中，接触文件：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|924825|<intent-filter+android:priority="999">
++++<action+android:name="android.intent.action.VIEW"+/>

++++<category+android:name="android.intent.category.DEFAULT"+/>
++++<category+android:name="android.intent.category.BROWSABLE"+/>
++++<category+android:name="android.intent.category.OPENABLE"+/>

++++<data+android:host="*"+/>
++++<data+android:mimeType="application/octet-stream"+/>
++++<data+android:pathPattern=".*\\..*\\..*\\..*\\..*\\.yourextension"+/>
++++<data+android:pathPattern=".*\\..*\\..*\\..*\\.yourextension"+/>
++++<data+android:pathPattern=".*\\..*\\..*\\.yourextension"+/>
++++<data+android:pathPattern=".*\\..*\\.yourextension"+/>
++++<data+android:pathPattern=".*\\.yourextension"+/>
++++<data+android:scheme="content"+/>
</intent-filter>|code-block|syntax|javascript|924826|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|$]]

Put this intent filter inside the activity tag in manifest you'd like to open touching the file:

<pre><code>&lt;intent-filter android:priority="999"&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;category android:name="android.intent.category.OPENABLE" /&gt;

 &lt;data android:host="*" /&gt;
 &lt;data android:mimeType="application/octet-stream" /&gt;
 &lt;data android:pathPattern=".*\\..*\\..*\\..*\\..*\\.yourextension" /&gt;
 &lt;data android:pathPattern=".*\\..*\\..*\\..*\\.yourextension" /&gt;
 &lt;data android:pathPattern=".*\\..*\\..*\\.yourextension" /&gt;
 &lt;data android:pathPattern=".*\\..*\\.yourextension" /&gt;
 &lt;data android:pathPattern=".*\\.yourextension" /&gt;
 &lt;data android:scheme="content" /&gt;
&lt;/intent-filter&gt;
</code></pre>

blocks|key|924889|text|//我已经尝试过此代码。它工作得很好。你可以用这个代码来接受pdf文件。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|924890|<intent-filter>
+++<action+android:name="android.intent.action.SEND"+/>
+++<category+android:name="android.intent.category.DEFAULT"+/>
+++<data+android:mimeType="application/pdf"+/>
+++<data+android:pathPattern=".*\\.pdf"+/>
+++<data+android:pathPattern=".*\\..*\\.pdf"+/>
+++<data+android:pathPattern=".*\\..*\\..*\\.pdf"+/>
+++<data+android:pathPattern=".*\\..*\\..*\\..*\\.pdf"+/>
</intent-filter>|code-block|syntax|javascript|924891|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|$]]

// I have tried this code. And it is working well. You can use this code to accept pdf file.

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

blocks|key|924922|text|阅读kotlin中的打开文件：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|924923|private+fun+checkFileOpening(intent:+Intent)+{
++++if+(intent.action+==+Intent.ACTION_VIEW+&&+(intent.scheme+==+ContentResolver.SCHEME_FILE
++++++++++++++++++++%7C%7C+intent.scheme+==+ContentResolver.SCHEME_CONTENT))+{

++++++++val+text+=+intent.data?.let+{
++++++++++++contentResolver.openInputStream(it)?.bufferedReader()?.use(BufferedReader::readText)+
++++++++}
++++}
}|code-block|syntax|javascript|924924|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|$]]

Read opening file in kotlin:

<pre><code>private fun checkFileOpening(intent: Intent) {
 if (intent.action == Intent.ACTION_VIEW &amp;&amp; (intent.scheme == ContentResolver.SCHEME_FILE
 || intent.scheme == ContentResolver.SCHEME_CONTENT)) {

 val text = intent.data?.let {
 contentResolver.openInputStream(it)?.bufferedReader()?.use(BufferedReader::readText) 
 }
 }
}
</code></pre>

blocks|key|1139508|text|上面的解决方案对我来说都不起作用，我不得不将它们组合在一起，让它像这样工作：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1139509|++++++++++++<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="http"/>
++++++++++++<data+android:host="*"/>
++++++++++++<data+android:pathPattern=".*\\.pdf"/>
++++++++</intent-filter>
++++++++<intent-filter>
++++++++++++<action+android:name="android.intent.action.VIEW"/>
++++++++++++<category+android:name="android.intent.category.DEFAULT"/>
++++++++++++<data+android:scheme="content"/>
++++++++++++<data+android:scheme="file"/>
++++++++++++<data+android:mimeType="application/pdf"/>
++++++++</intent-filter>
++++++++<intent-filter>
++++++++++++<action+android:name="android.intent.action.VIEW"/>
++++++++++++<category+android:name="android.intent.category.DEFAULT"/>
++++++++++++<data+android:scheme="content"/>
++++++++++++<data+android:scheme="file"/>
++++++++++++<data+android:host="*"/>
++++++++++++<data+android:pathPattern=".*\\.pdf"/>
++++++++</intent-filter>|code-block|syntax|javascript|1139510|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|$]]

none of the above solution worked for me, i had to combine all of them to make it work like this:
<pre><code> &lt;intent-filter&gt;
 &lt;action android:name=&quot;android.intent.action.VIEW&quot;/&gt;
 &lt;category android:name=&quot;android.intent.category.BROWSABLE&quot;/&gt;
 &lt;category android:name=&quot;android.intent.category.DEFAULT&quot;/&gt;
 &lt;data android:scheme=&quot;http&quot;/&gt;
 &lt;data android:host=&quot;*&quot;/&gt;
 &lt;data android:pathPattern=&quot;.*\\.pdf&quot;/&gt;
 &lt;/intent-filter&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;data android:scheme=&quot;content&quot;/&gt;
 &lt;data android:scheme=&quot;file&quot;/&gt;
 &lt;data android:mimeType=&quot;application/pdf&quot;/&gt;
 &lt;/intent-filter&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;data android:scheme=&quot;content&quot;/&gt;
 &lt;data android:scheme=&quot;file&quot;/&gt;
 &lt;data android:host=&quot;*&quot;/&gt;
 &lt;data android:pathPattern=&quot;.*\\.pdf&quot;/&gt;
 &lt;/intent-filter&gt;
</code></pre>

I have a custom file type/extension that I want to associate my app with.

As far as I know, the data element is made for this purpose, but I can't get it working.
<a href="http://developer.android.com/guide/topics/manifest/data-element.html" rel="noreferrer">http://developer.android.com/guide/topics/manifest/data-element.html</a>
According to the docs, and a lot of forum posts, it should work like this:

<pre><code>&lt;intent-filter&gt;
 &lt;action android:name="android.intent.action.MAIN" /&gt;
 &lt;category android:name="android.intent.category.DEFAULT" /&gt;
 &lt;category android:name="android.intent.category.BROWSABLE" /&gt;
 &lt;data android:mimeType="application/pdf" /&gt;
&lt;/intent-filter&gt;
</code></pre>

Well, it does not work. What did I do wrong? I simply want to declare my own file type.

Android intent filter: associate app with file extension

Android

我有一个自定义文件类型/扩展名，我想要将我的应用程序与其关联。据我所知，数据元素就是为了这个目的而创建的，但是我不能让它工作。根据文档和许多论坛的帖子，它应该是这样工作的：<intent-filter> <action android:name="android.intent.action.MAIN" /> ...

问Android意图过滤器:将app与文件扩展名关联
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