above described was 1 way i tried.
it was to develop customized camera feature as given in Android guide/
camera...
i also tried another way of using existing camera feature but am
getting NullPointerException....
can u tel where am going wrong??
On Nov 29, 10:13 am, rachana govilkar <rachana.govil...@gmail.com>
wrote:
> hey this is my ImageCapture.java......hope u get idea.....
>
> package com.privacygram.activity;
>
> import android.content.Context;
> import android.graphics.PixelFormat;
> import android.hardware.Camera;
> import android.hardware.Camera.Parameters;
> import android.hardware.Camera.PictureCallback;
> import android.hardware.Camera.ShutterCallback;
> import android.view.SurfaceHolder;
> import android.view.SurfaceView;
>
> public class ImageCapture extends SurfaceView{
>
> SurfaceHolder previewHolder;
> Camera camera;
> protected PictureCallback raw;
> protected ShutterCallback shutter;
> protected PictureCallback postview;
> protected PictureCallback jpeg;
>
> public ImageCapture(Context context) {
> super(context);
> // TODO Auto-generated constructor stub
> previewHolder = this.getHolder();
>
>
> previewHolder.setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS);
> previewHolder.addCallback(surfaceHolderListener);
> }
>
> SurfaceHolder.Callback surfaceHolderListener = new
> SurfaceHolder.Callback()
> {
> public void surfaceCreated(SurfaceHolder holder)
> {
> camera=Camera.open();
> try {
> camera.setPreviewDisplay(previewHolder);
> }catch (Exception E ){ }
> }
> public void surfaceDestroyed(SurfaceHolder arg0)
> {
> camera.stopPreview();
> camera.release();
> }
> public void surfaceChanged(SurfaceHolder holder, int
> format,
> int width, int height)
> {
> Parameters params = camera.getParameters();
> params.setPreviewSize(width, height);
> params.setPictureFormat(PixelFormat.JPEG);
> camera.setParameters(params);
> camera.startPreview();
>
> camera.takePicture(shutter, raw, postview, jpeg);
> camera.stopPreview();
> camera.release();
> }
> };
>
> }
>
> On Nov 28, 6:23 pm, Mark Murphy <mmur...@commonsware.com> wrote:
>
>
>
>
>
>
>
> > InstantiationException can mean that the activity class is not public
> > or lacks a public constructor with the appropriate signature.
>
> > On Mon, Nov 28, 2011 at 8:07 AM, Raghav Sood
>
> > <raghavs...@androidactivist.org> wrote:
> > > There is a problem in your instantiating your ImageCapture class. Post the
> > > first 30 lines or so, and you may get some help.
> > > Thanks
>
> > > On Mon, Nov 28, 2011 at 6:13 PM, rachana govilkar
> > > <rachana.govil...@gmail.com> wrote:
>
> > >> when i test on emulator it gives me error as Your application has
> > >> stopped unexpectedly.
> > >> n LogCat is:-
>
> > >> 11-28 18:10:06.265: E/AndroidRuntime(313): FATAL EXCEPTION: main
> > >> 11-28 18:10:06.265: E/AndroidRuntime(313): java.lang.RuntimeException:
> > >> Unable to instantiate activity ComponentInfo{com.privacygram.activity/
> > >> com.privacygram.activity.ImageCapture}:
> > >> java.lang.InstantiationException:
> > >> com.privacygram.activity.ImageCapture
> > >> 11-28 18:10:06.265: E/AndroidRuntime(313): at
> > >> android.app.ActivityThread.performLaunchActivity(ActivityThread.java:
> > >> 2585)
> > >> 11-28 18:10:06.265: E/AndroidRuntime(313): at
> > >> android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:
> > >> 2679)
> > >> 11-28 18:10:06.265: E/AndroidRuntime(313): at
> > >> android.app.ActivityThread.access$2300(ActivityThread.java:125)
> > >> 11-28 18:10:06.265: E/AndroidRuntime(313): at
> > >> android.app.ActivityThread$H.handleMessage(ActivityThread.java:2033)
> > >> 11-28 18:10:06.265: E/AndroidRuntime(313): at
> > >> android.os.Handler.dispatchMessage(Handler.java:99)
> > >> 11-28 18:10:06.265: E/AndroidRuntime(313): at
> > >> android.os.Looper.loop(Looper.java:123)
> > >> 11-28 18:10:06.265: E/AndroidRuntime(313): at
> > >> android.app.ActivityThread.main(ActivityThread.java:4627)
> > >> 11-28 18:10:06.265: E/AndroidRuntime(313): at
> > >> java.lang.reflect.Method.invokeNative(Native Method)
> > >> 11-28 18:10:06.265: E/AndroidRuntime(313): at
> > >> java.lang.reflect.Method.invoke(Method.java:521)
> > >> 11-28 18:10:06.265: E/AndroidRuntime(313): at
> > >> com.android.internal.os.ZygoteInit
> > >> $MethodAndArgsCaller.run(ZygoteInit.java:868)
> > >> 11-28 18:10:06.265: E/AndroidRuntime(313): at
> > >> com.android.internal.os.ZygoteInit.main(ZygoteInit.java:626)
> > >> 11-28 18:10:06.265: E/AndroidRuntime(313): at
> > >> dalvik.system.NativeStart.main(Native Method)
> > >> 11-28 18:10:06.265: E/AndroidRuntime(313): Caused by:
> > >> java.lang.InstantiationException:
> > >> com.privacygram.activity.ImageCapture
> > >> 11-28 18:10:06.265: E/AndroidRuntime(313): at
> > >> java.lang.Class.newInstanceImpl(Native Method)
> > >> 11-28 18:10:06.265: E/AndroidRuntime(313): at
> > >> java.lang.Class.newInstance(Class.java:1429)
> > >> 11-28 18:10:06.265: E/AndroidRuntime(313): at
> > >> android.app.Instrumentation.newActivity(Instrumentation.java:1021)
> > >> 11-28 18:10:06.265: E/AndroidRuntime(313): at
> > >> android.app.ActivityThread.performLaunchActivity(ActivityThread.java:
> > >> 2577)
> > >> 11-28 18:10:06.265: E/AndroidRuntime(313): ... 11 more
>
> > >> On Nov 28, 4:45 pm, Raghav Sood <raghavs...@androidactivist.org>
> > >> wrote:
> > >> > Try installing it via ADB and post the LogCat.
>
> > >> > Thanks
>
> > >> > On Mon, Nov 28, 2011 at 5:12 PM, rachana govilkar <
>
> > >> > rachana.govil...@gmail.com> wrote:
> > >> > > helo....
> > >> > > i developd a small application n started testing on LG 2.2 android
> > >> > > device.....
> > >> > > but i am getting this error "there is problem parsing the package"
> > >> > > when installing .apk file.....
> > >> > > i searched this group but i dint get any satisfactory answer.....
>
> > >> > > <uses-sdk android:minSdkVersion="8" />
> > >> > > i hope this is not causing error....as 2.2 device has same API
> > >> > > level...
> > >> > > please reply soon....
> > >> > > thnk u in advance
>
> > >> > > --
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> > >> > > For more options, visit this group at
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>
> > >> > --
> > >> > Raghav Soodhttp://www.androidactivist.org/-
> > >> > Authorhttp://www.appaholics.in/-Founder
>
> > >> --
> > >> You received this message because you are subscribed to the Google
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>
> > > --
> > > Raghav Sood
> > >http://www.androidactivist.org/-Author
> > >http://www.appaholics.in/-Founder
>
> > > --
> > > You received this message because you are subscribed to the Google
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> > > For more options, visit this group at
> > >http://groups.google.com/group/android-developers?hl=en
>
> > --
> > Mark Murphy (a Commons
> > Guy)http://commonsware.com|http://github.com/commonsguyhttp://commonsware.com/blog|http://twitter.com/commonsguy
>
> > Warescription: Three Android Books, Plus Updates, One Low Price!
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