I want to open up a file in my application with a custom extension say .ccf
And read the content of the file. it's a simple text file nothing else but i am changing the extension because i want only my app to read it.
i am using following intent-filter to open that file. but i don't know how to read the contents.
<intent-filter>
<action android:name="android.intent.action.VIEW" />
<category android:name="android.intent.category.DEFAULT"/>
<data android:scheme="http" android:host="*" android:pathPattern=".*\\.ccf" />
<data android:scheme="https" android:host="*" android:pathPattern=".*\\.ccf" />
<data android:scheme="content" android:host="*" android:pathPattern=".*\\.ccf" />
<data android:scheme="file" android:host="*" android:pathPattern=".*\\.ccf" />
</intent-filter>
Just like .PDF file open in Adobe reader.
Need help.
Related
I am trying to figure out the intent-filters I need in order to:
view file or content with *.npk extension
I read loads of the stackoverflow articles about intent-filters, but still can't understand what am I missing.
For example when this is my intent-filter, I expect it to catch files with "*.npk" extension. I know about the bug with the patterns, so I added multiple data lines in order to catch paths where there is 0-4 dots before .npk:
<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="file" android:pathPattern=".*\\.npk" />
<data android:scheme="file" android:pathPattern=".*\\..*\\.npk" />
<data android:scheme="file" android:pathPattern=".*\\..*\\..*\\.npk" />
<data android:scheme="file" android:pathPattern=".*\\..*\\..*\\..*\\.npk" />
<data android:scheme="file" android:pathPattern=".*\\..*\\..*\\..*\\..*\\.npk" />
</intent-filter>
When I open a file from total commander app it works, and it starts my activity as expected (BTW this works even if I only have one pathPattern=".*\\.npk", so maybe the mentioned bug is fixed in lollipop):
{act=android.intent.action.VIEW dat=file:///storage/emulated/0/Android/data/com.fletech.smartbaby.android.pro/files/npk/animal-water-he.npk typ=application/octet-stream flg=0x10000000 cmp=com.fletech.smartbaby.android/.CategorySliderActivity}
However I can't make it work from Dropbox app. This is a "captured" intent from logcat. In order to capture it I added android:mimeType="*/*" so I could chose my app, now every file (also .jpg) wants to open my app.
{act=android.intent.action.VIEW dat=file:///storage/emulated/0/Android/data/com.dropbox.android/files/u123456/scratch/apk/nature_0.npk typ=application/octet-stream flg=0x10000003 cmp=com.fletech.smartbaby.android/.CategorySliderActivity (has extras)}
I don't understand why the above filter doesn't catch this intent. The only difference I see between the total commander intent and the dropbox intent is the flag, extras which should not make a difference IMHO, and that there are 2 vs 4 dots in the path before the file extension, but my intent filter should take care of it.
Note: I am developing and testing on lollipop, but I would like it to work on api 9+.
After another long period of trial and error I found the following solution working. I had to add both android:host="*" and android:mimeType="*/*" to the data elements. It seems that there are some inconsistencies in the official android documentation.
<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="file" android:host="*" android:mimeType="*/*" android:pathPattern=".*\\.npk" />
<data android:scheme="file" android:host="*" android:mimeType="*/*" android:pathPattern=".*\\..*\\.npk" />
<data android:scheme="file" android:host="*" android:mimeType="*/*" android:pathPattern=".*\\..*\\..*\\.npk" />
<data android:scheme="file" android:host="*" android:mimeType="*/*" android:pathPattern=".*\\..*\\..*\\..*\\.npk" />
<data android:scheme="file" android:host="*" android:mimeType="*/*" android:pathPattern=".*\\..*\\..*\\..*\\..*\\.npk" />
</intent-filter>
I am saving a binary to a file with a custom extension for instance .custom. How do I save it to a specific mime type? I want my app to be called to open that custom file. In the manifest I used / as mimeType but the app gets called even when tapping an image. I used octet-stream but the file doesn't get recognized and the app does not get opened. I just want to save a binary with custom extension and the OS would call my app when it encounters this file.
<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="application/octet-stream" />
<data android:pathPattern=".*\\.test" />
<data android:host="*" />
</intent-filter>
Finally, after several views only without answers I figured it out. The post on this link helped me resolve my issue.
https://publish.illinois.edu/weiyang-david/2013/04/11/how-to-write-intent-filter-dealing-with-mime-type-problem/
This example was it
<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>
I replaced the scheme to "file" and replaced with my pathPattern. Removing the mimeType was key to solving my issue. File browsers now suggests to open the custom file with my app.
Want to create an android application, which opens a custom-build file extension (for example, I want to open .abcd files)
It is something like Adobe Reader that opens .pdf files, or Photo Viewer that opens .jpg files
Specific conditions:
1. The .abcd file should be outside / external from the application itself. (as .pdf is to Adobe Reader)
2. The .abcd file would be a zipped file, which contains few folders and .xml, .txt, and .jpg files. I think I want to extract it - maybe temporarily - to somewhere in the storage (definitely need a zipper/unzipper library), then read the individual .xml, .txt, and .jpg files.
Looking for insights and answers for this problem.
Additional information:
I am relatively new to Android programming.
I think you need to do that type of customization via intent-filter something like:
<intent-filter android:icon="your_drawable-resource"
android:label="your_string_resource"
android:priority="integer">
<action android:name="android.intent.action.VIEW" />
<category android:name="android.intent.category.DEFAULT" />
<data android:scheme="file" />
<data android:host="*" />
<data android:pathPattern=".*\\.YOUR_CUSTOM_FILE_EXTENSION" />
</intent-filter>
Also you should look:
Custom Filetype in Android not working
Android intent filter for a particular file extension?
android intent filter for custom file extension
One possible answer is shown
here
. Try some customisation for intent filters.
<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>
I have a file with extension .abc and I trying to read this file in my personal app. I have the following intent filter in my manifest xml.
<intent-filter>
<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=".*\\.abc" />
<data android:host="*" />
</intent-filter>
This filter catches all the intents sent from a file browser, 3rd party email clients etc. except for the native email client. the only difference between a file browser application and native email client is that, the scheme for the file browser is "file" and the scheme for native email client is "content". When I click a file with extension .abc in attachments in the native email client, it doesnt even download the file and no intent is fired. Any suggestions on where the issue could be?
If I am missing any information, I will be happy to add to the question.
This was solution to the problem. The mime type for the files with custom extension was application/. Adding the below filter to the manifest file solved the issue.
<intent-filter>
<action android:name="android.intent.action.VIEW" />
<category android:name="android.intent.category.DEFAULT" />
<data android:scheme="file" />
<data android:mimeType="application/abc" />
<data android:host="*" />
</intent-filter>
I have seen numerous answers on here about creating an intent filter for a custom file extension, but none of them seem to be answering my question:
I have an intent filter that works right now... when I browse for my file or when I open it from an email attachment, my app will appear in the list. The file itself has a custom extension of "tgtp", but it is basically just an xml file.
The problem I am having is that although this intent filter works, it also appears to add my app to every chooser for every type of file on my phone. An example would be if I clear my contacts app defaults and click on one of my contacts, it says my app can open it.
I've tried dozens of different combinations of intent filters with different schemes, mime types, etc... and some still let me open the file if i browse with a file browser, but I specifically need to be able to open email attachments and open as file browser. I am yet to find an intent filter(s) that allow me to do that without making my app available for every other intent chooser.
Here is my current intent-filter that uses my app to open everything:
<intent-filter>
<action android:name="android.intent.action.VIEW" />
<category android:name="android.intent.category.DEFAULT" />
<data android:mimeType="*/*" />
<data android:pathPattern=".*\\.tgtp" />
</intent-filter>
Thank you in advance
The only way to solve this problem is add scheme and host attributes to your intent filter:
<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:pathPattern=".*\\.tgtp" />
<data android:host="*" />
</intent-filter>
That is because in documentation says that android:pathPattern only works if has an scheme and host defined.
http://developer.android.com/guide/topics/manifest/data-element.html
Hope it helps.
I've been struggling with this quite a bit for a custom file extension, myself. After a lot of searching, I found this web page where the poster discovered that Android's patternMatcher class (which is used for the pathPattern matching in Intent-Filters) has unexpected behavior when your path contains the first character of your match pattern elsewhere in the path (like if you're trying to match "*.xyz", the patternMatcher class stops if there's an "x" earlier in your path). Here's what he found for a workaround, and worked for me, although it is a bit of a hack:
PatternMatcher is used for pathPattern at IntentFilter But,
PatternMatcher's algorithm is quite strange to me. Here is algorithm
of Android PatternMatcher.
If there is 'next character' of '.*' pattern in the middle of string,
PatternMatcher stops loop at that point. (See PatternMatcher.java of
Android framework.)
Ex. string : "this is a my attachment" pattern : ".att.". Android
PatternMatcher enter loop to match '.' pattern until meet the next
character of pattern (at this example, 'a') So, '.' matching loop
stops at index 8 - 'a' between 'is' and 'my'. Therefore result of this
match returns 'false'.
Quite strange, isn't it. To workaround this - actually reduce
possibility - developer should use annoying stupid pathPattern.
Ex. Goal : Matching uri path which includes 'message'.
<intent-filter>
...
<data android:pathPattern=".*message.*" />
<data android:pathPattern=".*m.*message.*" />
<data android:pathPattern=".*m.*m.*message.*" />
<data android:pathPattern=".*m.*m.*m.*message.*" />
<data android:pathPattern=".*m.*m.*m.*m.*message.*" />
...
</intent-filter>
This is especially issued when matching with custom file extention.
I have the exact same problem, and in my case, both other answers don't work. The closest I came is when I combine both benjamin and sabadow's answers, -and- leave out the dot in the extension, so like this: (i'm using my custom ".trk" extension)
<!-- For opening/viewing only trk-files: (works in google drive and "File Manager", not gmail) -->
<intent-filter>
<action android:name="android.intent.action.VIEW" />
<action android:name="android.intent.action.SEND" />
<action android:name="android.intent.action.SEND_MULTIPLE" />
<action android:name="android.intent.action.SENDTO" />
<category android:name="android.intent.category.DEFAULT" />
<category android:name="android.intent.category.BROWSABLE" />
<data android:scheme="file" android:mimeType="*/*" android:pathPattern=".*trk" android:host="*" />
<data android:scheme="file" android:mimeType="*/*" android:pathPattern=".*t.*trk" android:host="*" />
<data android:scheme="file" android:mimeType="*/*" android:pathPattern=".*t.*t.*trk" android:host="*" />
<data android:scheme="file" android:mimeType="*/*" android:pathPattern=".*t.*t.*t.*trk" android:host="*" />
<data android:scheme="file" android:mimeType="*/*" android:pathPattern=".*t.*t.*t.*t.*trk" android:host="*" />
<data android:scheme="file" android:mimeType="*/*" android:pathPattern=".*t.*t.*t.*t.*t.*trk" android:host="*" />
<data android:scheme="file" android:mimeType="*/*" android:pathPattern=".*t.*t.*t.*t.*t.*t.*trk" android:host="*" />
<data android:scheme="file" android:mimeType="*/*" android:pathPattern=".*t.*t.*t.*t.*t.*t.*t.*trk" android:host="*" />
</intent-filter>
<!-- For catching attachments in Gmail: (also triggers non-trk-files that aren't associated with some other app, but not non-trk-files that already have one of more associations, strangely) -->
<intent-filter>
<action android:name="android.intent.action.VIEW" />
<action android:name="android.intent.action.SEND" />
<action android:name="android.intent.action.SEND_MULTIPLE" />
<action android:name="android.intent.action.SENDTO" />
<category android:name="android.intent.category.DEFAULT" />
<category android:name="android.intent.category.BROWSABLE" />
<data android:mimeType="*/*" android:scheme="content" />
</intent-filter>
<!-- For catching share actions from apps: (also triggered by sharing actions for all other file types) -->
<intent-filter>
<action android:name="android.intent.action.SEND" />
<category android:name="android.intent.category.DEFAULT" />
<data android:mimeType="application/*" />
</intent-filter>
It's a bit long, but you might not need all lines, like the SENDTO and SEND_MULTIPLE actions. I just need it to work in all cases where it could work. Sadly it also triggers in some, but not all, other cases.
One possible answer is shown
here
. Basically, try the following intent filter inside the desired activity tag to open:
<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>