With the help of "pro Android.Media", i tried, but it gave me force close error, here is my code and logcat
// Camera arg conversion to Bitmap Bitmap cameraBitmap = BitmapFactory.decodeByteArray(arg0, 0, arg0.length); Bitmap back = Bitmap.createBitmap(cameraBitmap.getWidth(), cameraBitmap.getHeight(), Bitmap.Config.ARGB_8888); Canvas cam = new Canvas(back); cam.drawBitmap(cameraBitmap, matrix, null); // FrameLayout to Bitmap FrameLayout mainLayout = (FrameLayout) findViewById(R.id.frame); Bitmap foreground = Bitmap.createBitmap(mainLayout.getWidth(), mainLayout.getHeight(), Bitmap.Config.ARGB_8888); Canvas c = new Canvas(foreground); mainLayout.draw(c); Bitmap cs = Bitmap.createBitmap(cameraBitmap.getWidth(), cameraBitmap.getHeight(), Bitmap.Config.ARGB_8888); Canvas canvas = new Canvas(cs); Paint paint = new Paint(); canvas.drawBitmap(cameraBitmap, 0, 0, paint); paint.setXfermode(new PorterDuffXfermode(android.graphics.PorterDuff.Mode.MULTIPLY)); canvas.drawBitmap(foreground, 0, 0, paint); view.setImageBitmap(cs); and log cat 08-01 04:46:07.969: E/AndroidRuntime(737): FATAL EXCEPTION: main 08-01 04:46:07.969: E/AndroidRuntime(737): java.lang.NullPointerException 08-01 04:46:07.969: E/AndroidRuntime(737): at com.exercise.AndroidCamera.AndroidCamera$4.onPictureTaken(AndroidCamera.java:263) 08-01 04:46:07.969: E/AndroidRuntime(737): at android.hardware.Camera$EventHandler.handleMessage(Camera.java:320) 08-01 04:46:07.969: E/AndroidRuntime(737): at android.os.Handler.dispatchMessage(Handler.java:99) 08-01 04:46:07.969: E/AndroidRuntime(737): at android.os.Looper.loop(Looper.java:123) 08-01 04:46:07.969: E/AndroidRuntime(737): at android.app.ActivityThread.main(ActivityThread.java:4627) 08-01 04:46:07.969: E/AndroidRuntime(737): at java.lang.reflect.Method.invokeNative(Native Method) 08-01 04:46:07.969: E/AndroidRuntime(737): at java.lang.reflect.Method.invoke(Method.java:521) 08-01 04:46:07.969: E/AndroidRuntime(737): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:868) 08-01 04:46:07.969: E/AndroidRuntime(737): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:626) 08-01 04:46:07.969: E/AndroidRuntime(737): at dalvik.system.NativeStart.main(Native Method) Can you please help me to figure out the issue? Thanks On Tue, Jul 31, 2012 at 8:44 PM, Jim Graham <[email protected]> wrote: > On Tue, Jul 31, 2012 at 05:57:47AM -0700, Numair Qadir wrote: > > I want to merge two bitmaps, here is my code > > I was just going to point you to the right page in the dev guide, but I > don't remember if there even is one (I learned this from a book, "Pro > Android Media"). Be advised that with larger bitmaps, you can easily > cause an Out Of Memory error and, if that isn't caught, a force close, > so if you need to do this with LARGE bitmaps, you'll have to use the NDK. > > // blend src1 and src2 into dest (must be same size and, I think they > // have to be the same configuration, too, e.g., both ARGB_8888) > > Bitmap dest = Bitmap.createBitmap(width, height, src1.getConfig()); > Canvas canvas = new Canvas(src2); > Paint paint = new Paint(); > > canvas = new Canvas(src2); > paint = new Paint(); > canvas.drawBitmap(src1, 0, 0, paint); > paint.setXfermode(new > PorterDuffXfermode(android.graphics.PorterDuff.Mode.SRC_OVER)); > canvas.drawBitmap(dest, 0, 0, paint); > > PorterDuff has quite a few different modes, so check out the dev guide's > page on PorterDuff.Mode for more information. > > Later, > --jim > > -- > THE SCORE: ME: 2 CANCER: 0 > 73 DE N5IAL (/4) MiSTie #49997 < Running Mac OS X Lion > > [email protected] ICBM/Hurricane: 30.44406N 86.59909W > > "'Wrong' is one of those concepts that depends on witnesses." > --Catbert: Evil Director of Human Resources (Dilbert, 05Nov09) > > Android Apps Listing at http://www.jstrack.org/barcodes.html > > -- > You received this message because you are subscribed to the Google > Groups "Android Developers" group. > To post to this group, send email to [email protected] > To unsubscribe from this group, send email to > [email protected] > For more options, visit this group at > http://groups.google.com/group/android-developers?hl=en > -- You received this message because you are subscribed to the Google Groups "Android Developers" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
