[android-developers] Re: WebView/Browser: How to browse files from the sdcard?
Hi Mariano, Can you please tell us what is the final result and how u had implement those API to run your code Thanks, Asif On Jan 12, 12:21 am, Mariano Kamp mariano.k...@gmail.com wrote: Once again, thanks. I found this tutorial:http://www.anddev.org/tutproviding_data_in_a_contentprovider-t4073.html and will try that. I checked that the ContentProvider is called from the Browser... So the rest should work. On Sun, Jan 11, 2009 at 7:58 PM, Mark Murphy mmur...@commonsware.comwrote: Mariano Kamp wrote: I don't see how that should work? Wouldn't that be the same as the FileContentProvider? I cannot find a FileContentProvider class in the SDK or SDK samples. I see where there is one in the source code, and, yes, I think that's the basic idea. How would WebView learn about this provider. I believe you feed it a URL, like: content://your.provider.here/path/to/something.html But, again, I have not tried this myself, though I recall seeing some posts in this group, and maybe a blog post, covering this technique to some degree. -- Mark Murphy (a Commons Guy) http://commonsware.com Android Training in Sweden --http://www.sotrium.com/training.php- Hide quoted text - - Show quoted text - --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en -~--~~~~--~~--~--~---
[android-developers] Re: WebView/Browser: How to browse files from the sdcard?
As I said by private mail already. I am not there yet, but that doesn't matter as I found this discussion: http://groups.google.com/group/android-developers/browse_thread/thread/beae7de5e2500cb6/9891024d8ddfeefb which talks exactly about using a homegrown content provider to serve files directly. Inside this article you'll find a link to this blogpost ( http://lucabelluccini.blogspot.com/2008/09/android-developers-google-group-focus.html) which contains the working code. On Mon, Jan 12, 2009 at 12:50 PM, Asif k asifk1...@gmail.com wrote: Hi Mariano, Can you please tell us what is the final result and how u had implement those API to run your code Thanks, Asif On Jan 12, 12:21 am, Mariano Kamp mariano.k...@gmail.com wrote: Once again, thanks. I found this tutorial: http://www.anddev.org/tutproviding_data_in_a_contentprovider-t4073.html and will try that. I checked that the ContentProvider is called from the Browser... So the rest should work. On Sun, Jan 11, 2009 at 7:58 PM, Mark Murphy mmur...@commonsware.com wrote: Mariano Kamp wrote: I don't see how that should work? Wouldn't that be the same as the FileContentProvider? I cannot find a FileContentProvider class in the SDK or SDK samples. I see where there is one in the source code, and, yes, I think that's the basic idea. How would WebView learn about this provider. I believe you feed it a URL, like: content://your.provider.here/path/to/something.html But, again, I have not tried this myself, though I recall seeing some posts in this group, and maybe a blog post, covering this technique to some degree. -- Mark Murphy (a Commons Guy) http://commonsware.com Android Training in Sweden --http://www.sotrium.com/training.php- Hide quoted text - - Show quoted text - --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en -~--~~~~--~~--~--~---
[android-developers] Re: WebView/Browser: How to browse files from the sdcard?
I was recently able to solve this problem. I displayed an image saved on the local file system in a WebView, the steps are same for html file as well. I wrote about it step by step here http://www.techjini.com/blog/2009/01/10/android-tip-1-contentprovider-accessing-local-file-system-from-webview-showing-image-in-webview-using-content/ you dont need to implement the ContentProvider in so much details just one method. HTH On Jan 12, 5:45 pm, Mariano Kamp mariano.k...@gmail.com wrote: As I said by private mail already. I am not there yet, but that doesn't matter as I found this discussion:http://groups.google.com/group/android-developers/browse_thread/threa... which talks exactly about using a homegrown content provider to serve files directly. Inside this article you'll find a link to this blogpost (http://lucabelluccini.blogspot.com/2008/09/android-developers-google-...) which contains the working code. On Mon, Jan 12, 2009 at 12:50 PM, Asif k asifk1...@gmail.com wrote: Hi Mariano, Can you please tell us what is the final result and how u had implement those API to run your code Thanks, Asif On Jan 12, 12:21 am, Mariano Kamp mariano.k...@gmail.com wrote: Once again, thanks. I found this tutorial: http://www.anddev.org/tutproviding_data_in_a_contentprovider-t4073.html and will try that. I checked that the ContentProvider is called from the Browser... So the rest should work. On Sun, Jan 11, 2009 at 7:58 PM, Mark Murphy mmur...@commonsware.com wrote: Mariano Kamp wrote: I don't see how that should work? Wouldn't that be the same as the FileContentProvider? I cannot find a FileContentProvider class in the SDK or SDK samples. I see where there is one in the source code, and, yes, I think that's the basic idea. How would WebView learn about this provider. I believe you feed it a URL, like: content://your.provider.here/path/to/something.html But, again, I have not tried this myself, though I recall seeing some posts in this group, and maybe a blog post, covering this technique to some degree. -- Mark Murphy (a Commons Guy) http://commonsware.com Android Training in Sweden --http://www.sotrium.com/training.php-Hide quoted text - - Show quoted text - --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en -~--~~~~--~~--~--~---
[android-developers] Re: WebView/Browser: How to browse files from the sdcard?
Great, that looks good Amit. You mentioned in your blog post the security circumvention. Do you have any idea about what kind of security risk we are talking here? On Mon, Jan 12, 2009 at 1:56 PM, A R amit.r...@gmail.com wrote: I was recently able to solve this problem. I displayed an image saved on the local file system in a WebView, the steps are same for html file as well. I wrote about it step by step here http://www.techjini.com/blog/2009/01/10/android-tip-1-contentprovider-accessing-local-file-system-from-webview-showing-image-in-webview-using-content/ you dont need to implement the ContentProvider in so much details just one method. HTH On Jan 12, 5:45 pm, Mariano Kamp mariano.k...@gmail.com wrote: As I said by private mail already. I am not there yet, but that doesn't matter as I found this discussion: http://groups.google.com/group/android-developers/browse_thread/threa... which talks exactly about using a homegrown content provider to serve files directly. Inside this article you'll find a link to this blogpost ( http://lucabelluccini.blogspot.com/2008/09/android-developers-google-...) which contains the working code. On Mon, Jan 12, 2009 at 12:50 PM, Asif k asifk1...@gmail.com wrote: Hi Mariano, Can you please tell us what is the final result and how u had implement those API to run your code Thanks, Asif On Jan 12, 12:21 am, Mariano Kamp mariano.k...@gmail.com wrote: Once again, thanks. I found this tutorial: http://www.anddev.org/tutproviding_data_in_a_contentprovider-t4073.html and will try that. I checked that the ContentProvider is called from the Browser... So the rest should work. On Sun, Jan 11, 2009 at 7:58 PM, Mark Murphy mmur...@commonsware.com wrote: Mariano Kamp wrote: I don't see how that should work? Wouldn't that be the same as the FileContentProvider? I cannot find a FileContentProvider class in the SDK or SDK samples. I see where there is one in the source code, and, yes, I think that's the basic idea. How would WebView learn about this provider. I believe you feed it a URL, like: content://your.provider.here/path/to/something.html But, again, I have not tried this myself, though I recall seeing some posts in this group, and maybe a blog post, covering this technique to some degree. -- Mark Murphy (a Commons Guy) http://commonsware.com Android Training in Sweden -- http://www.sotrium.com/training.php-Hide quoted text - - Show quoted text - --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en -~--~~~~--~~--~--~---
[android-developers] Re: WebView/Browser: How to browse files from the sdcard?
Mariano Kamp wrote: Hi, I am trying to browse files from the sd card, but haven't had any success so far. Maybe I am doing something wrong, so I'd like to write down the steps for your feedback. The sample contains of an html file that references a png. (1) localhost:~ mkamp$ cat test.html html pHello World!img src=test.png/p /html (2) I transfer the two files to the sdcard like this: localhost:~ mkamp$ adb push test.html /sdcard/. 10 KB/s (57 bytes in 0.005s) localhost:~ mkamp$ adb push test.png /sdcard/. 709 KB/s (3180 bytes in 0.004s) (3) To check if they are there I get them back and compare the version I pulled back with the version I pushed doing the following: localhost:~ mkamp$ adb pull /sdcard/test.png test2.png 829 KB/s (3180 bytes in 0.003s) localhost:~ mkamp$ adb pull /sdcard/test.html test2.html 0 KB/s (57 bytes in 0.110s) localhost:~ mkamp$ diff test.html test2.html localhost:~ mkamp$ md5 test.png test2.png MD5 (test.png) = 49cde2f11086e4ebcb1aff45deaae750 MD5 (test2.png) = 49cde2f11086e4ebcb1aff45deaae750 So life should be good, right? (4) Well, when trying to browse those files in the Android browser with the url file:///sdcard/test.html I get Web page not available. The Web page at file:///scard/test.html could not be loaded as: The requested file was not found. (5) The system logs shows: E/browser ( 239): onReceivedError code:-13 The requested file was not found. D/browser ( 239): updating cursor I feel really stupid failing at something so simple, but I just don't see what I am missing. You cannot use the built-in Browser application to view local content, apparently for security reasons. -- Mark Murphy (a Commons Guy) http://commonsware.com _The Busy Coder's Guide to Android Development_ Version 2.0 Available! --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en -~--~~~~--~~--~--~---
[android-developers] Re: WebView/Browser: How to browse files from the sdcard?
OMG. That is such a blow. I didn't read anything like that in the WebView documentation. I spent my vacation writing an offline client for Google Reader. Puh. I already paid for a logo etc. Man that sucks ;-( Any idea how to work around that? I actually don't need it to work in the browser just in the WebView. Would this help to work around the security issue? What kind of issue is that anyway? Mariano On Sun, Jan 11, 2009 at 5:46 PM, Mark Murphy mmur...@commonsware.comwrote: Mariano Kamp wrote: Hi, I am trying to browse files from the sd card, but haven't had any success so far. Maybe I am doing something wrong, so I'd like to write down the steps for your feedback. The sample contains of an html file that references a png. (1) localhost:~ mkamp$ cat test.html html pHello World!img src=test.png/p /html (2) I transfer the two files to the sdcard like this: localhost:~ mkamp$ adb push test.html /sdcard/. 10 KB/s (57 bytes in 0.005s) localhost:~ mkamp$ adb push test.png /sdcard/. 709 KB/s (3180 bytes in 0.004s) (3) To check if they are there I get them back and compare the version I pulled back with the version I pushed doing the following: localhost:~ mkamp$ adb pull /sdcard/test.png test2.png 829 KB/s (3180 bytes in 0.003s) localhost:~ mkamp$ adb pull /sdcard/test.html test2.html 0 KB/s (57 bytes in 0.110s) localhost:~ mkamp$ diff test.html test2.html localhost:~ mkamp$ md5 test.png test2.png MD5 (test.png) = 49cde2f11086e4ebcb1aff45deaae750 MD5 (test2.png) = 49cde2f11086e4ebcb1aff45deaae750 So life should be good, right? (4) Well, when trying to browse those files in the Android browser with the url file:///sdcard/test.html I get Web page not available. The Web page at file:///scard/test.html could not be loaded as: The requested file was not found. (5) The system logs shows: E/browser ( 239): onReceivedError code:-13 The requested file was not found. D/browser ( 239): updating cursor I feel really stupid failing at something so simple, but I just don't see what I am missing. You cannot use the built-in Browser application to view local content, apparently for security reasons. -- Mark Murphy (a Commons Guy) http://commonsware.com _The Busy Coder's Guide to Android Development_ Version 2.0 Available! --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en -~--~~~~--~~--~--~---
[android-developers] Re: WebView/Browser: How to browse files from the sdcard?
Hey Mark. Mariano Kamp wrote: OMG. That is such a blow. I didn't read anything like that in the WebView documentation. I didn't say WebView. I said Browser. Browser != WebView. Sorry, I know, I didn't want to imply otherwise. Any idea how to work around that? Writing a ContentProvider to serve your content appears to be the standard answer. I haven't used that technique myself as yet, though. I don't see how that should work? Wouldn't that be the same as the FileContentProvider? How would WebView learn about this provider. Anyway, thanks for taking the time to think answer my question. Cheers, Mariano --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en -~--~~~~--~~--~--~---
[android-developers] Re: WebView/Browser: How to browse files from the sdcard?
Mariano Kamp wrote: I don't see how that should work? Wouldn't that be the same as the FileContentProvider? I cannot find a FileContentProvider class in the SDK or SDK samples. I see where there is one in the source code, and, yes, I think that's the basic idea. How would WebView learn about this provider. I believe you feed it a URL, like: content://your.provider.here/path/to/something.html But, again, I have not tried this myself, though I recall seeing some posts in this group, and maybe a blog post, covering this technique to some degree. -- Mark Murphy (a Commons Guy) http://commonsware.com Android Training in Sweden -- http://www.sotrium.com/training.php --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en -~--~~~~--~~--~--~---
[android-developers] Re: WebView/Browser: How to browse files from the sdcard?
Once again, thanks. I found this tutorial: http://www.anddev.org/tutproviding_data_in_a_contentprovider-t4073.html and will try that. I checked that the ContentProvider is called from the Browser... So the rest should work. On Sun, Jan 11, 2009 at 7:58 PM, Mark Murphy mmur...@commonsware.comwrote: Mariano Kamp wrote: I don't see how that should work? Wouldn't that be the same as the FileContentProvider? I cannot find a FileContentProvider class in the SDK or SDK samples. I see where there is one in the source code, and, yes, I think that's the basic idea. How would WebView learn about this provider. I believe you feed it a URL, like: content://your.provider.here/path/to/something.html But, again, I have not tried this myself, though I recall seeing some posts in this group, and maybe a blog post, covering this technique to some degree. -- Mark Murphy (a Commons Guy) http://commonsware.com Android Training in Sweden -- http://www.sotrium.com/training.php --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en -~--~~~~--~~--~--~---
