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Android Programming: Touch Driving Drawings and Bitmaps on Canvas

1) Touch driving drawings and bitmaps on canvas 2) Customizing Views to handle touch 3) Capture and consumption of motion events 4) Source code of the ...

User Comments

黃建源 commented on 22 Oct 2013

This is so useful Thank you very much

ธีรพัฒน์ ดีธงทอง commented on 22 Jun 2015

Thank you very much

Jaime Perez commented on 27 Jul 2013

Very nice. :-)

micael pereira commented on 31 Dec 2013

muito bom

Android Application Development Tutorial - 42 - Using BitmapFactory and InputStream to set Bitmap

Visit my website at https://www.thenewboston.com/ for all of my videos and tutorials! Have questions or looking for source code? Check out the forum at ...

User Comments

Lana Murphy commented on 27 Aug 2014

When I hit the set wallpaper button it force closes any sugestions.

Lana Murphy commented on 27 Aug 2014

never mind figured it out . In my mainfest in my permission i had it set to min sdk as 8 . I just took that out and then it worked.

BoredNerdyGames commented on 30 Apr 2014

I fooled around with a different way to fix that error using an 'if' statement and a popup function i found via Google. P.S. also I used WallpaperManager since setWallpaper is apparently old now. if(bmp == null){ Toast.makeText(Camera.this, "FAIL! Try taking a picture first.", Toast.LENGTH_LONG).show(); }else{ myWallpaperManager.setBitmap(bmp); Toast.makeText(Camera.this, "SUCCESS! Wallpaper set.", Toast.LENGTH_LONG).show(); }

Aniket Kaulavkar commented on 15 Apr 2015

+BoredNerdyGames I used the "if " statement in another way and it worked for me ! case R.id.bSetWall: if(bmp != null) { try { getApplicationContext().setWallpaper(bm); } catch (IOException e) { e.printStackTrace(); } } break;

Mihir Borkar commented on 11 Mar 2014

FOR MOST PART!

fantadan commented on 11 Apr 2014

Basically

Ki Ko commented on 05 Mar 2014

Hmm.. Can you just initialize bmp to null, and if bmp == null --> some alert that no image captured. Is this possible ?

BoredNerdyGames commented on 30 Apr 2014

Yep! That's exactly what I did. If you don't initialize bmp to a specific value, it is always 'null' by default.

Yair Tayb commented on 01 Mar 2014

just wanted you to know, your tutorials suck balls, I mean you are not explaining anything, you just tell us to wait and understand while as you go forward you act like we are already familiar with what you showed us in the previous videos but did not explain

Abhishek Sai commented on 25 Aug 2014

Well, if you had prior knowledge of java, this tutorial would be much better for you!So try to learn java first, and then come back and these tutorials will be very helpful

Basti K commented on 20 Nov 2013

i think giving your bitmap an default picture is a really bad way to program such an app. dont know why you didnt surround the onclickmethod for setwallpaper with an if statement and just ask if(bmp == null) and set up an AlertDialog to say hey dude you should make a picture first. would be the proper way in my opinion

Elmer Ståhlberg commented on 10 Dec 2013

+Raymond Phan +1

Raymond Phan commented on 05 Dec 2013

How about a thank you for taking the time and posting these wonderful (AND FREE) tutorials for all of us to enjoy, instead of criticizing his style? If you don't like his style, then watch someone else.

fasicpicture commented on 12 Nov 2013

easy way for this and and better(sorry for bad eng.): make int on start = 0, ask on setBacground is it 1 if it is not don't do naythig if it is setBacground...on TakePic set it to 1...

boki2001 commented on 11 Aug 2014

Prvi domaći!!!!

Android Application Development Tutorial - 65 - Animating a Bitmap

Visit my website at https://www.thenewboston.com/ for all of my videos and tutorials! Have questions or looking for source code? Check out the forum at ...

User Comments

Aditya Patel commented on 19 Jun 2015

why the hell its not moving\\

galder13 commented on 25 Jun 2015

+Aditya Patel Great! :)

Aditya Patel commented on 25 Jun 2015

+galder13 thx buddy it worked

galder13 commented on 25 Jun 2015

+Aditya Patel The command canvas.drawBitmap(gBall, canvas.getWidth()/2, 0, null); should become now canvas.drawBitmap(gBall, canvas.getWidth()/2, changingY, null);

How to create an android camera app using intents - Part 4

This android camera intent tutorial is part 4 of a six part series. In this tutorial we grab the thumbnail image returned back to us from the camera app and assign ...

User Comments

Arch commented on 14 Dec 2015

Hi! Your tutorials are amazing! But I seem to have gotten a bit of a problem here.. I take a picture. I click the tick sign.. The Image shows up too.. the problem is it's too blurry. Before selecting the tick sign, i check the quality and its wonderful. But when the image is displayed.. its all blurred out. Please give me a solution.

Mobile Application Tutorials commented on 16 Dec 2015

Glad to hear you completed the series, good news is that there are a few more for you to check out :-D

Arch commented on 16 Dec 2015

I just completed the tutorial series and everything works like a charm!! Thanks a lot for the tutorials!

Mobile Application Tutorials commented on 16 Dec 2015

+Arch Ok, the image that is returned in part 4 is only a thumbnail of limited resolution which is probably why you are seeing the blurriness. Try moving forward to part 5 & part 6 which should give you the full image.

Arnoldo Gonzalez commented on 10 Nov 2015

Hi, great tutorial, i got an error while running the code at the last step, i followed you with the code, i don't know what might be causing it, maybe i forgot something, could you please help me? here's the logcat 11-10 03:08:48.170 5769-5769/com.example.alba.cameraintenttutorial E/AndroidRuntime: FATAL EXCEPTION: main 11-10 03:08:48.170 5769-5769/com.example.alba.cameraintenttutorial E/AndroidRuntime: Process: com.example.alba.cameraintenttutorial, PID: 5769 11-10 03:08:48.170 5769-5769/com.example.alba.cameraintenttutorial E/AndroidRuntime: java.lang.RuntimeException: Failure delivering result ResultInfo{who=null, request=0, result=-1, data=Intent { act=inline-data (has extras) }} to activity {com.example.alba.cameraintenttutorial/com.example.alba.cameraintenttutorial.CameraIntentActivity}: java.lang.NullPointerException 11-10 03:08:48.170 5769-5769/com.example.alba.cameraintenttutorial E/AndroidRuntime: at android.app.ActivityThread.deliverResults(ActivityThread.java:3432) 11-10 03:08:48.170 5769-5769/com.example.alba.cameraintenttutorial E/AndroidRuntime: at android.app.ActivityThread.handleSendResult(ActivityThread.java:3475) 11-10 03:08:48.170 5769-5769/com.example.alba.cameraintenttutorial E/AndroidRuntime: at android.app.ActivityThread.access$1300(ActivityThread.java:139) 11-10 03:08:48.170 5769-5769/com.example.alba.cameraintenttutorial E/AndroidRuntime: at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1258) 11-10 03:08:48.170 5769-5769/com.example.alba.cameraintenttutorial E/AndroidRuntime: at android.os.Handler.dispatchMessage(Handler.java:102) 11-10 03:08:48.170 5769-5769/com.example.alba.cameraintenttutorial E/AndroidRuntime: at android.os.Looper.loop(Looper.java:136) 11-10 03:08:48.170 5769-5769/com.example.alba.cameraintenttutorial E/AndroidRuntime: at android.app.ActivityThread.main(ActivityThread.java:5086) 11-10 03:08:48.170 5769-5769/com.example.alba.cameraintenttutorial E/AndroidRuntime: at java.lang.reflect.Method.invokeNative(Native Method) 11-10 03:08:48.170 5769-5769/com.example.alba.cameraintenttutorial E/AndroidRuntime: at java.lang.reflect.Method.invoke(Method.java:515) 11-10 03:08:48.170 5769-5769/com.example.alba.cameraintenttutorial E/AndroidRuntime: at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:785) 11-10 03:08:48.170 5769-5769/com.example.alba.cameraintenttutorial E/AndroidRuntime: at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:601) 11-10 03:08:48.170 5769-5769/com.example.alba.cameraintenttutorial E/AndroidRuntime: at dalvik.system.NativeStart.main(Native Method) 11-10 03:08:48.170 5769-5769/com.example.alba.cameraintenttutorial E/AndroidRuntime: Caused by: java.lang.NullPointerException 11-10 03:08:48.170 5769-5769/com.example.alba.cameraintenttutorial E/AndroidRuntime: at com.example.alba.cameraintenttutorial.CameraIntentActivity.onActivityResult(CameraIntentActivity.java:71) 11-10 03:08:48.170 5769-5769/com.example.alba.cameraintenttutorial E/AndroidRuntime: at android.app.Activity.dispatchActivityResult(Activity.java:5446) 11-10 03:08:48.170 5769-5769/com.example.alba.cameraintenttutorial E/AndroidRuntime: at android.app.ActivityThread.deliverResults(ActivityThread.java:3428) 11-10 03:08:48.170 5769-5769/com.example.alba.cameraintenttutorial E/AndroidRuntime: at android.app.ActivityThread.handleSendResult(ActivityThread.java:3475) 11-10 03:08:48.170 5769-5769/com.example.alba.cameraintenttutorial E/AndroidRuntime: at android.app.ActivityThread.access$1300(ActivityThread.java:139) 11-10 03:08:48.170 5769-5769/com.example.alba.cameraintenttutorial E/AndroidRuntime: at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1258) 11-10 03:08:48.170 5769-5769/com.example.alba.cameraintenttutorial E/AndroidRuntime: at android.os.Handler.dispatchMessage(Handler.java:102) 11-10 03:08:48.170 5769-5769/com.example.alba.cameraintenttutorial E/AndroidRuntime: at android.os.Looper.loop(Looper.java:136) 11-10 03:08:48.170 5769-5769/com.example.alba.cameraintenttutorial E/AndroidRuntime: at android.app.ActivityThread.main(ActivityThread.java:5086) 11-10 03:08:48.170 5769-5769/com.example.alba.cameraintenttutorial E/AndroidRuntime: at java.lang.reflect.Method.invokeNative(Native Method) 11-10 03:08:48.170 5769-5769/com.example.alba.cameraintenttutorial E/AndroidRuntime: at java.lang.reflect.Method.invoke(Method.java:515) 11-10 03:08:48.170 5769-5769/com.example.alba.cameraintenttutorial E/AndroidRuntime: at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:785) 11-10 03:08:48.170 5769-5769/com.example.alba.cameraintenttutorial E/AndroidRuntime: at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:601) 11-10 03:08:48.170 5769-5769/com.example.alba.cameraintenttutorial E/AndroidRuntime: at dalvik.system.NativeStart.main(Native Method)

Mobile Application Tutorials commented on 12 Nov 2015

+Neo Herakles I think this is one of the biggest issues with android for both users & developers alike. There are number of devices that behave in manner not compliant with Android OS. The nexus phones are provided as a guideline for manufacturers to implement their devices. Now if you are using the google camera application and it's not providing you with the thumbnail data it's a bug in the implementation of your device which should be raised against the manufacturer.Workarounds are never a nice solution for particular problems like this, it means extra unnecessary code which has to be maintained and may induce new bugs.The tutorials I will be adding will be more of the intermediate / advanced levels but they will definitely give people more insight to issues such as these.

Arnoldo Gonzalez commented on 12 Nov 2015

i'm using a Motorola Moto G 1st gen and i have Android 5.1 installed, i look forward to that tutorial, since i won't be able to continue further with this one until i am able to figure out a workaround

Mobile Application Tutorials commented on 11 Nov 2015

+Neo Heracles Thanks for that link, its the first I had heard of this one. I still have to implement the thumbnail support for camera2 but camera2 should work for part 6.What kind of hardware & android version are you using?The next tutorial series I will be releasing will be about the file & MediaStore providers and implementing their features in camera_intent & camera2. That may help resolve or provide a work around to these issues.

Arnoldo Gonzalez commented on 11 Nov 2015

+Mobile Application Tutorials yes, just tested it, it takes pictures correctly, the errors seem similar to these https://kevinpotgieter.wordpress.com/2011/03/30/null-intent-passed-back-on-samsung-galaxy-tab/, although i'm a beginner and i can't really tell how could i fix it, should i try to implement an app using camera2 instead?

Mobile Application Tutorials commented on 11 Nov 2015

I suspect the camera application you are calling is not responding correctly. have you tried this with google's camera app?

Arnoldo Gonzalez commented on 10 Nov 2015

+Neo Herakles i look forward to continue with this tutorial and to do many others, i like the pace that you do these tutorials, very beginner friendly, thank you :)

I Don't Like Spam commented on 23 Oct 2015

Nigel, thank you for making tutorials like this! I have made the same camera app, but I would test it with a different phone and the photo appears sideways. Is this caused by the phone I am debugging with?

I Don't Like Spam commented on 24 Oct 2015

+Mobile Application Tutorials Oh awesome! Thanks for taking that explanation into consideration and for your quick response. I hope to see more from you soon.

Mobile Application Tutorials commented on 24 Oct 2015

+I Don't Like Spam Yes you should not see this behaviour with a nexus phone but will with some other devices. Unfortunately there is not really any consistent behaviour across all of the phones. Ideally the camera app should save the images at the correct orientation but that's not really happening. Therefore it's up to the gallery app to do the rotation before displaying the image. I'll look into an doing providing another tutorial at the end of this series explaining how to rotate to images to the correct orientations.

Ferdie Abalos commented on 19 Oct 2015

Great Camera apps..!! good job!.. Can you help on how will be able to send this captured image to the server? By using php code..Thanks and more power!

Mobile Application Tutorials commented on 20 Oct 2015

+Ferdie Abalos This channel is exclusively focused on mobile applications and those being android at this moment in time so I don't envisage seeing any server side php code here. That saying there could be a case for an android app communicating with a server api's either by using android third party libraries or by using JSON. Or by creating something using google app engine (java) which provides a good fit with android.

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