Why imageView.setLayerType(View.LAYER_TYPE_SOFTWARE, null); and <application android:hardwareAccelerated=“false” have different effect?

问题

I wonder why if I set

<application
   android:hardwareAccelerated="false"

using svg-android i see no image (due to hw acceleration problem?), but if I set

imageView.setLayerType(View.LAYER_TYPE_SOFTWARE, null);

I can get it to work.

Does View.LAYER_TYPE_SOFTWARE disables the hw acceleration or not?

回答1:

The direct answer to your question (Does View.LAYER_TYPE_SOFTWARE disables the hw acceleration or not?) is YES. It actually disable hw acceleration, but only at a view level, i.e. hw accl is disabled in imageView in your case, while setting android:hardwareAccelerated="false" will disable hw accl for your whole application.

For more detailed, please refer this link.

来源：https://stackoverflow.com/questions/17814680/why-imageview-setlayertypeview-layer-type-software-null-and-application-and