load image from web

Android Processing

timmsta

in Android Processing • 3 years ago

Hi there,

I'm trying to simply load an image from the web, but somehow it doesn't work on my mobile. using this code:

PImage img1;

void setup(){
size(575, 370);
img1 = loadImage("http://www.wollle.com/images/stories/interactive/schaller_seite_old.jpg");
}

void draw(){
image(img1, 0, 0);
}

and setting the permission for INTERNET it is working on the emulator. But when trying this code on my mobile, i'm getting a NullPointerException. Is there something I forgot? (Im using a samsung galaxy)

cheers+thanks
Timm

Replies(8)

ben.fry

Re: load image from web

3 years ago

Hm, that should work fine, so long as you have the permission set.

I'd try opening a terminal/console window on your OS, and run 'adb logcat' while trying to run the app, to see if there's anything else around the NPE that might give you a clue as to what's happening.

matthewba..

Re: load image from web

2 years ago

I'm experiencing the same issue loading images from the web using my motorola droid, version 2.2.1
I have activated the sketch permissions: INTERNET
When I 'Present' I get:
'cannot find symbol'
& line 7 is highlighted.

Any help is much appreciated :)

^{PImage img001;}
^{void setup() {}
^{//size(screenWidth, screenHeight, P2D);}
^{size(screenWidth, screenHeight, A2D);}
^{background (0);}
^{String url = "http://curiositycan.com/files/gimgs/42_vision006.jpg";}
^{img001 = loadImage(url, "jpg");}
^noLoop();
^}
^{void draw() {}
^{imageMode(CENTER);}
^{image(img001, width/2, height/2);}
^}

ben.fry

Re: load image from web

2 years ago

That's a different issue. You can't specify a file extension with loadImage() on Android, so it's not part of the API. Change it to loadImage(url) and you'll be fine.

matthewba..

Re: Re: load image from web

2 years ago

Works great now - Thanks!

m.lima

Re: load image from web

1 year ago

I've tried the code but it doesn't work.. Could anyone help me?

java.net.SocketException: The operation timed out

at org.apache.harmony.luni.platform.OSNetworkSystem.connectStreamWithTimeoutSocketImpl(Native Method)

at org.apache.harmony.luni.platform.OSNetworkSystem.connect(OSNetworkSystem.java:115)

at org.apache.harmony.luni.net.PlainSocketImpl.connect(PlainSocketImpl.java:244)

at org.apache.harmony.luni.net.PlainSocketImpl.connect(PlainSocketImpl.java:533)

at java.net.Socket.connect(Socket.java:1055)

at org.apache.http.conn.scheme.PlainSocketFactory.connectSocket(PlainSocketFactory.java:119)

at org.apache.http.impl.conn.DefaultClientConnectionOperator.openConnection(DefaultClientConnectionOperator.java:143)

at org.apache.http.impl.conn.AbstractPoolEntry.open(AbstractPoolEntry.java:164)

at org.apache.http.impl.conn.AbstractPooledConnAdapter.open(AbstractPooledConnAdapter.java:119)

at org.apache.http.impl.client.DefaultRequestDirector.execute(DefaultRequestDirector.java:348)

at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:555)

at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:487)

at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:465)

at processing.core.PApplet.createInputRaw(Unknown Source)

at processing.core.PApplet.createInput(Unknown Source)

at processing.core.PApplet.loadImage(Unknown Source)

at changethispackage.beforesubmitting.tothemarket.loadimagenet.LoadImageNet.setup(LoadImageNet.java:28)

at processing.core.PApplet.handleDraw(Unknown Source)

at processing.core.PGraphicsAndroid2D.requestDraw(Unknown Source)

at processing.core.PApplet.run(Unknown Source)

at java.lang.Thread.run(Thread.java:1096)

Could not find the image http://www.wollle.com/images/stories/interactive/schaller_seite_old.jpg.

FATAL EXCEPTION: Animation Thread

java.lang.NullPointerException

at processing.core.PGraphics.image(Unknown Source)

at processing.core.PApplet.image(Unknown Source)

at changethispackage.beforesubmitting.tothemarket.loadimagenet.LoadImageNet.draw(LoadImageNet.java:31)

at processing.core.PApplet.handleDraw(Unknown Source)

at processing.core.PGraphicsAndroid2D.requestDraw(Unknown Source)

at processing.core.PApplet.run(Unknown Source)

at java.lang.Thread.run(Thread.java:1096)

PhiLho

Re: load image from web

1 year ago

" Could not find the image" and my browser doesn't find it either. Try with another URL.

m.lima

Re: load image from web

1 year ago

It seems that processing when compile on Android Mode puts a 'dot' at the urls end.

PhiLho

Re: Re: load image from web

1 year ago

OK, my bad, that's Zoho including the dot with the URL generation (logically) in the forum message. But the message is still the core of the issue: the image is accessible from desktop, so perhaps Android blocks the access. Here, I reach the limits of my competence, having no Android device.

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