Exception : OutOfMemoryError

Question

I have published my app in play store. Now In Crashes and ANRs I am getting following errors on 2 devices (Galaxy Note3 and Galaxy Note II). I dont know how to solve these e

Answer 1

One problem I've had a couple of times is having a lot of MDPI drawable resources but no HDPI / XHDPI versions. When loading these on an HDPI or XHDPI device, Android will scale them up by loading the original, then making a a scaled up copy in memory, meaning you've got two copies in memory at once, the original and a scaled up version. If the drawable is being stretched by the renderer (e.g. If it's a background for a view), then there's no need for Android to scale it up when it's loaded, as the renderer does that anyway. So if you only have one MDPI copy of the image and don't want Android to scale it up, you should put it in the drawable-nodpi folder instead of the drawable or drawable-mdpi folders.

EDIT:

You can use the render time scaling available on an image view by setting the android:scaleType attribute. E.g. you could set the image view's width and height to match_parent, then set the scale type to centerCrop or centerInside to have the image scale up when it's drawn while maintaining its aspect ratio. centerCrop will totally fill the image view but potentially cut off some of the image, whereas centerInside ensures that the whole image is visible, but may leave some blank space. The scaling will be done at render time, so won't use any extra memory.

It can all be done in the layout XML like so:

android:layout_height="match_parent"
android:layout_width="match_parent"
android:scaleType="centerCrop"

To have the image displayed fully inside the image view without cropping, change the last line to:

android:scaleType="centerInside"

Finally, if you don't want to maintain the aspect ratio, you can use the following scale type:

android:scaleType="fitXY"