android-bitmap

[Edit: I've made a minimal project to try to narrow down what's going on. The code at the bottom still generates the same artifacts when saved] I have an app that draws simple 2D geometry using Paths. The shapes are all solid colors, sometimes with alpha < 255, and may be decorated with lines. In the View that draws the geometry, there has never been an issue with how things get drawn. However, when I use the same code to draw to a Bitmap, and then save it as either a JPEG (with 100 quality) or PNG, there is always the same artifacting in the solid-colored areas of the output files. It's a

In Xamarin , what is the best way to enable pinch zooming for an image? Currently I have just an ImageView that has a Bitmap image as an image. I have done some research, and I have found a few examples where people have used some other libraries but would like some advice on the best way to enable pinch zooming on an image before I start writing this code. So, what is the best way to enable pinch zooming on an image in Android , specifically Xamarin ? Thank in advance You can get ImageView zoom-in capabilities and panning of the zoomed in image by using the Monodroidtoolkit ScaleImageView.

I wanted to simply convert a bitmap from Android to a Mat object for OpenCV. This topic is often adressed on Stack Overflow. For example: convert Mat to Bitmap Opencv for Android ; convert Bitmap to Mat after capture image using android camera ; templateMatching mattoBitmap opencv for android There is even more to find. I followed the instrcutions in this answers, but I'm still unable to get is done the right way. Minimal code: //First convert Bitmap to Mat Mat ImageMat = new Mat ( image.getHeight(), image.getWidth(), CvType.CV_8U, new Scalar(4)); Bitmap myBitmap32 = image.copy(Bitmap.Config

I am able to convert a Layout with a TextView into a Bitmap , as long as the event that happens after onCreate() . But when I try during on create, it does not work. Is there a way to get this to work? I have tried using inflate() in various ways with no joy. There are various answered questions including this one that address the technique that I'm successfully using in my code. But the success does not include employing the technique from onCreate() . public class MainActivity extends AppCompatActivity { private static final String TAG = MainActivity.class.getSimpleName(); private

I am trying to copy Image i receive from Intent to another directory. But I am unable to get it working yet. Need Help. My Logcat: 04-29 14:56:22.778 31620-31620/com.example.krupal.sqlitetest I/Choreographer: Skipped 42 frames! The application may be doing too much work on its main thread. 04-29 14:56:24.944 31620-31633/com.example.krupal.sqlitetest W/EGL_emulation: eglSurfaceAttrib not implemented 04-29 14:56:24.944 31620-31633/com.example.krupal.sqlitetest W/OpenGLRenderer: Failed to set EGL_SWAP_BEHAVIOR on surface 0x7f5170636740, error=EGL_SUCCESS 04-29 14:56:26.370 31620-31633/com.example

I need to change the default cross-icon in ChromeCustomTab Android, I am changing it with back-icon using the code below: Bitmap icon = BitmapFactory.decodeResource(context.getResources(),R.drawable.ic_arrow_back_white_24dp); It is working fine with PNGs but not with SVGs. As per this documentation, we have to maintain size of image according to this documentation. https://developer.android.com/reference/android/support/customtabs/CustomTabsIntent.html#KEY_ICON I think it is not working because they are not following the dimensions given in Documentation. You need to return a valid Bitmap .