android-image

I am reusing ImageView s for my displays, but at some point I don't have values to put it. So how to clear an ImageView in Android? I've tried: mPhotoView.invalidate(); mPhotoView.setImageBitmap(null); None of them have cleared the view, it still shows previous image. Mario Lenci I used to do it with the dennis.sheppard solution: viewToUse.setImageResource(0); it works but it is not documented so it isn't really clear if it effects something else in the view (you can check the ImageView code if you like, i didn't). I think the best solution is: viewToUse.setImageResource(android.R.color

I have extracted image uri, now I would like to open image with Android's default image viewer. Or even better, user could choose what program to use to open the image. Something like File Explorers offer you if you try to open a file. Accepted answer was not working for me, What had worked: Intent intent = new Intent(); intent.setAction(Intent.ACTION_VIEW); intent.setDataAndType(Uri.parse("file://" + "/sdcard/test.jpg"), "image/*"); startActivity(intent); Ask myself, answer myself also: startActivity(new Intent(Intent.ACTION_VIEW, Uri.parse("content://media/external/images/media/16"))); /**

How can I read an image file into bitmap from sdcard? _path = Environment.getExternalStorageDirectory().getAbsolutePath(); System.out.println("pathhhhhhhhhhhhhhhhhhhh1111111112222222 " + _path); _path= _path + "/" + "flower2.jpg"; System.out.println("pathhhhhhhhhhhhhhhhhhhh111111111 " + _path); Bitmap bitmap = BitmapFactory.decodeFile(_path, options ); I am getting a NullPointerException for bitmap. It means that the bitmap is null. But I have an image ".jpg" file stored in sdcard as "flower2.jpg". What's the problem? The MediaStore API is probably throwing away the alpha channel (i.e.

During runtime, I am trying to put an image in the surface view. When I tried using the image from the Drawable folder I got Out of memory error. After a quick search in the stackoverflow, I found that there will be some relief if we access the image from the asset folder. But still I get the Out of memory error during runtime. I have analyzed and found that scaling will help in resolving this kind of memory related issues. The thing is that I have the image size of 1280 x 720 and the device size also the same. Hence I feel like the scaling will not have any effect. As we have experts in this

I'm loading a bitmap into an ImageView, and seeing this error. I gather this limit relates to a size limit for OpenGL hardware textures (2048x2048). The image I need to load is a pinch-zoom image of about 4,000 pixels high. I've tried turning off hardware acceleration in the manifest, but no joy. <application android:hardwareAccelerated="false" .... > Is it possible to load an image larger than 2048 pixels into an ImageView? jptsetung All rendering is based on OpenGL, so no you can't go over this limit ( GL_MAX_TEXTURE_SIZE depends on the device, but the minimum is 2048x2048, so any image