In my android application I have to allow the user to click a button to open the Gallery and to select an image. And then needs to load that specific selected image to an Image View in my layout(UI). and i have some code but it comes java.lang.outofmemory.Please anyone can help me?
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The bitmaps you're loading might be too big for the amount of memory available on your test device. Alternatively, you might be loading too many bitmaps into the gallery at a time. People often run in to this, you have to put some forethought into your code when dealing with bitmaps on Android. Here's a presentation by Romain Guy that touches on this topic: dl.google.com/io/2009/pres/…Turnsole– Turnsole2013-10-17 14:50:44 +00:00Commented Oct 17, 2013 at 14:50
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2 Answers
You should decode the image uri on onActivityResult() method. Call this method to decodeBitmap.
/**
* This is very useful to overcome Memory waring issue while selecting image
* from Gallery
*
* @param selectedImage
* @param context
* @return Bitmap
* @throws FileNotFoundException
*/
public static Bitmap decodeBitmap(Uri selectedImage, Context context)
throws FileNotFoundException {
BitmapFactory.Options o = new BitmapFactory.Options();
o.inJustDecodeBounds = true;
BitmapFactory.decodeStream(context.getContentResolver()
.openInputStream(selectedImage), null, o);
final int REQUIRED_SIZE = 100;
int width_tmp = o.outWidth, height_tmp = o.outHeight;
int scale = 1;
while (true) {
if (width_tmp / 2 < REQUIRED_SIZE || height_tmp / 2 < REQUIRED_SIZE) {
break;
}
width_tmp /= 2;
height_tmp /= 2;
scale *= 2;
}
BitmapFactory.Options o2 = new BitmapFactory.Options();
o2.inSampleSize = scale;
return BitmapFactory.decodeStream(context.getContentResolver()
.openInputStream(selectedImage), null, o2);
}
For more details go though the topic Displaying Bitmaps Efficiently
http://developer.android.com/training/displaying-bitmaps/index.html
Hope this Help.
Comments
Here you'll find why you get this exception and how to correctly display bitmaps: http://developer.android.com/training/displaying-bitmaps/index.html
