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Merge pull request #2211 from NativeScript/layer-type

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Fixed:  Android layerType should not be changed if there is no need
This commit is contained in:
Rossen Hristov
2016-05-31 09:14:04 +03:00
parent f1f588e65e e2f1e272b4
commit fd9a0c98e6
4 changed files with 64 additions and 11 deletions
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19
tns-core-modules/ui/styling/background.android.ts
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@ -238,8 +238,14 @@ export module ad {
var _defaultBackgrounds = new Map<string, android.graphics.drawable.Drawable>();
interface CacheLayerType {
layerType: number;
}
export function onBackgroundOrBorderPropertyChanged(v: view.View) {
var nativeView = <android.view.View>v._nativeView;
var cache = <CacheLayerType>v._nativeView;
if (!nativeView) {
return;
}
@ -278,14 +284,12 @@ export module ad {
bkg.background = backgroundValue;
bkg.clipPath = clipPathValue;
if (getSDK() < 18) {
if ((v.borderWidth !== 0 || v.borderRadius !== 0 || clipPathValue) && getSDK() < 18) {
// Switch to software because of unsupported canvas methods if hardware acceleration is on:
// http://developer.android.com/guide/topics/graphics/hardware-accel.html
cache.layerType = nativeView.getLayerType();
nativeView.setLayerType(android.view.View.LAYER_TYPE_SOFTWARE, null);
}
else {
nativeView.setLayerType(android.view.View.LAYER_TYPE_HARDWARE, null);
}
}
else {
// reset the value with the default native value
@ -300,9 +304,10 @@ export module ad {
}
}
if (getSDK() < 18) {
// Reset layer type to hardware
nativeView.setLayerType(android.view.View.LAYER_TYPE_HARDWARE, null);
if (cache.layerType !== undefined) {
// Reset layer type
nativeView.setLayerType(cache.layerType, null);
cache.layerType = undefined;
}
}