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plusminus
Site Admin
Joined: 14 Nov 2007
Posts: 2624
Location: College Park, MD
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 Posted: Thu Jan 03, 2008 11:48 am Post subject: |
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Hello Katharnavas,
saving takes place here:
| Java: | FileOutputStream stream = super.openFileOutput("picture" + i++ + ".png", MODE_PRIVATE);
camera.capture(canvas);
myPic.compress(CompressFormat.PNG, 100, stream);
stream.flush();
stream.close(); |
Simply alter the Parameter of super.openFileOutput(...);. If you want to write to the SD-Card, there is no need for using "openFileOutput", because you can use standard java methods, like new FileOutputStream(...)...
Regards,
plusminus
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Last edited by plusminus on Thu Jan 03, 2008 2:02 pm; edited 1 time in total |
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Katharnavas
Senior Developer
Joined: 04 Dec 2007
Posts: 100
Location: India
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| Posted: Thu Jan 03, 2008 1:11 pm Post subject: |
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Hi,
Its nice to have you after a pleasant new year ...
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Lex
Developer
Joined: 16 Nov 2007
Posts: 30
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| Posted: Thu Jan 03, 2008 1:29 pm Post subject: |
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| Thank you for this tutorial. Very helpful !
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bavarol
Experienced Developer
Joined: 10 Dec 2007
Posts: 52
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| Posted: Thu Mar 06, 2008 12:10 pm Post subject: |
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| plusminus wrote: | Hello Katharnavas,
saving takes place here:
| Java: | FileOutputStream stream = super.openFileOutput("picture" + i++ + ".png", MODE_PRIVATE);
camera.capture(canvas);
myPic.compress(CompressFormat.PNG, 100, stream);
stream.flush();
stream.close(); |
Simply alter the Parameter of super.openFileOutput(...);. If you want to write to the SD-Card, there is no need for using "openFileOutput", because you can use standard java methods, like new FileOutputStream(...)...
Regards,
plusminus |
Hi, I have written "-sdcard <path of sdcard.img>" on command line as ever, then I altered super.OpenFileOutput by new FileOutputStream(...) in all possible variants (new FileOutputStream(String), new FileOputputStream(File), etc) but I still get FileNotFoundException, why?
Regards
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bavarol
Experienced Developer
Joined: 10 Dec 2007
Posts: 52
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drhu00
Junior Developer
Joined: 12 Feb 2008
Posts: 11
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| Posted: Sat Mar 08, 2008 5:31 pm Post subject: How to retrieve the png file that I saved? |
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I can save these png files as said in this post
picture0.png
picture1.png
etc.
but how can I get back these pictures?
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plusminus
Site Admin
Joined: 14 Nov 2007
Posts: 2624
Location: College Park, MD
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drhu00
Junior Developer
Joined: 12 Feb 2008
Posts: 11
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| Posted: Sat Mar 08, 2008 6:11 pm Post subject: |
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Thank you plusminus. The question is that when I use your filebrowser
http://www.anddev.org/android_filebrowser__v20-t101.html
under the data, I find it is empty so I can't find the
/data/data/org.picture/files/picture0.png
That's why I am wounder where is the file stored.
Does your filebrowser can retrive all the directory and files under data? Why it is empty? When I use the eclipse DDMS shows all the files and directory.
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plusminus
Site Admin
Joined: 14 Nov 2007
Posts: 2624
Location: College Park, MD
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| Posted: Sun Mar 09, 2008 1:35 pm Post subject: |
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Hello drhu00,
the reason for that is the rights, the application is running with.
You need administrator-priviledges to browse that folder, which a normal application has not.
Regards,
plusminus
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Steel
Developer
Joined: 28 Dec 2007
Posts: 43
Location: Copenhagen, Denmark
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| Posted: Tue Mar 11, 2008 4:24 pm Post subject: |
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A fine tutorial indeed.
I wonder about the quality hint in the Bitmap.compress(...)-function though. The javadoc says:
quality Hint to the compressor, 0-100. 0 meaning compress for small size, 100 meaning compress for max quality.
Now thats fine and logical for the JPEG-compressor, but for the PNG-compressor shouldn't it be 1-8 (BitsPerPixel for PNG-8) or 24 (for PNG-24)?
Issue 443 filed.
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Eclipse is a fork, IntelliJ is the ninja sword. Which weapon are you going into battle with? |
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plusminus
Site Admin
Joined: 14 Nov 2007
Posts: 2624
Location: College Park, MD
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| Posted: Tue Mar 11, 2008 5:21 pm Post subject: |
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Hello Steel,
I don't know. Maybe they are wrapping the values internally , depending on what file-type was selected.
Regards,
plusminus
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Pere
Freshman
Joined: 11 Apr 2008
Posts: 2
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| Posted: Fri Apr 11, 2008 6:11 pm Post subject: |
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Hi,
I'm an absolute beginner with Android. I found this site and started practicing with the nice tutorials it provides. Then I found this one which has something to do with what I wanted to do with Android, so I think it would be a good start point to base my project on.
But I'm having problems getting it to work right from the beginning. I downloaded camera.zip, put into my Eclipse project folder and tried to run it. First of all I got a problem because the android.jar folder was configured in another path (probably for a Unix system). After fixing that, I get the following errors:
"the method setCallback(Preview) is undefined for the type SurfaceHolder" (file CameraPreview.java, line 136).
"the return type is incompatible with SurfaceHolder.Callback.surfaceCreated(SurfaceHolder)" (file CameraPreview.java, line 164).
About the 1st error, as Eclipse gives me the option to change the method to "addCallback", I supposed the method just could had changed its name in a newer version of the API or whatsoever; I am using last version of the API and maybe this tutorial could have been done using an older version.
For the 2nd one, I have no clue. I simply tried changing the return type to "void" to try to run it... and then, after I try to run the project from the "Run" dialog, I get a "Project is not an Android Project. Aborting!" error in Eclipse.
I would be very happy if someone could enlight me with some help to get this running...
Thanks a lot!
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Stephen.Ada
Junior Developer
Joined: 10 Mar 2008
Posts: 10
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| Posted: Sun Apr 20, 2008 5:55 am Post subject: |
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a nice tut.
I did save some pictures in the dir . but the picutre did't display what it is as i capture in android.
the first picture display like this:
but the successive captured picture can't display ,however....
have u guys ever encourtered this problem?
any help appreciate!
| Description: |
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| Filesize: |
1.31 KB |
| Viewed: |
1968 Time(s) |
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Pere
Freshman
Joined: 11 Apr 2008
Posts: 2
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| Posted: Fri Apr 25, 2008 4:56 pm Post subject: |
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Hi again,
Please, can anyone give me some hint in getting my problem solved? I haven't touched a line of the source code provided, but still I am not able to run it.
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bavarol
Experienced Developer
Joined: 10 Dec 2007
Posts: 52
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| Posted: Wed Jun 04, 2008 7:30 pm Post subject: |
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| Pere wrote: | Hi again,
Please, can anyone give me some hint in getting my problem solved? I haven't touched a line of the source code provided, but still I am not able to run it. |
| Pere wrote: | Hi,
I'm an absolute beginner with Android. I found this site and started practicing with the nice tutorials it provides. Then I found this one which has something to do with what I wanted to do with Android, so I think it would be a good start point to base my project on.
But I'm having problems getting it to work right from the beginning. I downloaded camera.zip, put into my Eclipse project folder and tried to run it. First of all I got a problem because the android.jar folder was configured in another path (probably for a Unix system). After fixing that, I get the following errors:
"the method setCallback(Preview) is undefined for the type SurfaceHolder" (file CameraPreview.java, line 136).
"the return type is incompatible with SurfaceHolder.Callback.surfaceCreated(SurfaceHolder)" (file CameraPreview.java, line 164).
About the 1st error, as Eclipse gives me the option to change the method to "addCallback", I supposed the method just could had changed its name in a newer version of the API or whatsoever; I am using last version of the API and maybe this tutorial could have been done using an older version.
For the 2nd one, I have no clue. I simply tried changing the return type to "void" to try to run it... and then, after I try to run the project from the "Run" dialog, I get a "Project is not an Android Project. Aborting!" error in Eclipse.
I would be very happy if someone could enlight me with some help to get this running...
Thanks a lot! |
Hi Pere (are you from Catalonia? ), you should use CameraPreview of APIDemo, start the emulator and then click over ApiDemo and go to "graphic", and you'll find CameraPReview. I think it's still there.
I still work under m3rc22 cause of my Project.
So you have not to download cameraPreview.zip from this post.
Bye
Adios
Adeu
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