android: hardwareAccelerated = "false" cause CardView, Dialog not rounded

Since a screen (a large number of picture) where OOM appeared 
so the use of 
<file application 
　　Android: hardwareAccelerated = "to false" /> 
resulting in a large number of CardView, Dialog not rounded 

finally found may be used in a single ACTIVITY 
　　　　such fine processing too much

android:hardwareAccelerated="false"