private void getMetricsWithSize(
DisplayMetrics outMetrics,
CompatibilityInfo compatInfo,
Configuration configuration,
int width,
int height) {
outMetrics.densityDpi = outMetrics.noncompatDensityDpi = logicalDensityDpi;
outMetrics.density =
outMetrics.noncompatDensity = logicalDensityDpi * DisplayMetrics.DENSITY_DEFAULT_SCALE;
outMetrics.scaledDensity = outMetrics.noncompatScaledDensity = outMetrics.density;
outMetrics.xdpi = outMetrics.noncompatXdpi = physicalXDpi;
outMetrics.ydpi = outMetrics.noncompatYdpi = physicalYDpi;
width =
(configuration != null
&& configuration.screenWidthDp != Configuration.SCREEN_WIDTH_DP_UNDEFINED)
? (int) ((configuration.screenWidthDp * outMetrics.density) + 0.5f)
: width;
height =
(configuration != null
&& configuration.screenHeightDp != Configuration.SCREEN_HEIGHT_DP_UNDEFINED)
? (int) ((configuration.screenHeightDp * outMetrics.density) + 0.5f)
: height;
outMetrics.noncompatWidthPixels = outMetrics.widthPixels = width;
outMetrics.noncompatHeightPixels = outMetrics.heightPixels = height;
if (!compatInfo.equals(CompatibilityInfo.DEFAULT_COMPATIBILITY_INFO)) {
compatInfo.applyToDisplayMetrics(outMetrics);
}
}
@Implementation
public DisplayMetrics getDisplayMetrics() {
if (displayMetrics == null) {
if (display == null) {
display = Robolectric.newInstanceOf(Display.class);
}
displayMetrics = new DisplayMetrics();
display.getMetrics(displayMetrics);
}
displayMetrics.density = this.density;
return displayMetrics;
}
/**
* Initializes and acquires the scene, creating various Android objects such as context, inflater,
* and parser.
*
* @param timeout the time to wait if another rendering is happening.
* @return whether the scene was prepared
* @see #acquire(long)
* @see #release()
*/
public Result init(long timeout) {
// acquire the lock. if the result is null, lock was just acquired, otherwise, return
// the result.
Result result = acquireLock(timeout);
if (result != null) {
return result;
}
// setup the ParserFactory
ParserFactory.setParserFactory(mParams.getLayoutlibCallback().getParserFactory());
HardwareConfig hardwareConfig = mParams.getHardwareConfig();
// setup the display Metrics.
DisplayMetrics metrics = new DisplayMetrics();
metrics.densityDpi = metrics.noncompatDensityDpi = hardwareConfig.getDensity().getDpiValue();
metrics.density =
metrics.noncompatDensity = metrics.densityDpi / (float) DisplayMetrics.DENSITY_DEFAULT;
metrics.scaledDensity = metrics.noncompatScaledDensity = metrics.density;
metrics.widthPixels = metrics.noncompatWidthPixels = hardwareConfig.getScreenWidth();
metrics.heightPixels = metrics.noncompatHeightPixels = hardwareConfig.getScreenHeight();
metrics.xdpi = metrics.noncompatXdpi = hardwareConfig.getXdpi();
metrics.ydpi = metrics.noncompatYdpi = hardwareConfig.getYdpi();
RenderResources resources = mParams.getResources();
// build the context
mContext =
new BridgeContext(
mParams.getProjectKey(),
metrics,
resources,
mParams.getAssets(),
mParams.getLayoutlibCallback(),
getConfiguration(),
mParams.getTargetSdkVersion(),
mParams.isRtlSupported());
setUp();
return SUCCESS.createResult();
}
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
AndroidProperties.init(this);
// Set pixel density based on Android device
DisplayMetrics metrics = new DisplayMetrics();
try {
WindowManager winMgr = (WindowManager) getSystemService(Context.WINDOW_SERVICE);
winMgr.getDefaultDisplay().getMetrics(metrics);
} catch (Exception e) {
metrics.density = 1;
}
AndroidProperties.set("pixel_density", String.valueOf(metrics.density), this);
loginWithFacebook();
}
@Test
public void testPropertiesResetToDefault() {
DisplayMetrics displayMetrics = new DisplayMetrics();
displayMetrics.density = 1.0f;
DisplayMetricsHolder.setWindowDisplayMetrics(displayMetrics);
LayoutShadowNode reactShadowNode = spy(new LayoutShadowNode());
ReactStylesDiffMap map =
buildStyles(
"width", 10.0,
"height", 10.0,
"left", 10.0,
"top", 10.0,
"flex", 1.0,
"padding", 10.0,
"marginLeft", 10.0,
"borderTopWidth", 10.0,
"flexDirection", "row",
"alignSelf", "stretch",
"alignItems", "center",
"justifyContent", "space_between",
"position", "absolute");
reactShadowNode.updateProperties(map);
verify(reactShadowNode).setStyleWidth(10.f);
verify(reactShadowNode).setStyleHeight(10.f);
verify(reactShadowNode).setPositionLeft(10.f);
verify(reactShadowNode).setPositionTop(10.f);
verify(reactShadowNode).setFlex(1.0f);
verify(reactShadowNode).setPadding(Spacing.ALL, 10.f);
verify(reactShadowNode).setMargin(Spacing.LEFT, 10.f);
verify(reactShadowNode).setBorder(Spacing.TOP, 10.f);
verify(reactShadowNode).setFlexDirection(CSSFlexDirection.ROW);
verify(reactShadowNode).setAlignSelf(CSSAlign.STRETCH);
verify(reactShadowNode).setAlignItems(CSSAlign.CENTER);
verify(reactShadowNode).setJustifyContent(CSSJustify.SPACE_BETWEEN);
verify(reactShadowNode).setPositionType(CSSPositionType.ABSOLUTE);
map =
buildStyles(
"width", null,
"height", null,
"left", null,
"top", null,
"flex", null,
"padding", null,
"marginLeft", null,
"borderTopWidth", null,
"flexDirection", null,
"alignSelf", null,
"alignItems", null,
"justifyContent", null,
"position", null);
reset(reactShadowNode);
reactShadowNode.updateProperties(map);
verify(reactShadowNode).setStyleWidth(CSSConstants.UNDEFINED);
verify(reactShadowNode).setStyleHeight(CSSConstants.UNDEFINED);
verify(reactShadowNode).setPositionLeft(CSSConstants.UNDEFINED);
verify(reactShadowNode).setPositionTop(CSSConstants.UNDEFINED);
verify(reactShadowNode).setFlex(0.f);
verify(reactShadowNode).setPadding(Spacing.ALL, CSSConstants.UNDEFINED);
verify(reactShadowNode).setMargin(Spacing.LEFT, CSSConstants.UNDEFINED);
verify(reactShadowNode).setBorder(Spacing.TOP, CSSConstants.UNDEFINED);
verify(reactShadowNode).setFlexDirection(CSSFlexDirection.COLUMN);
verify(reactShadowNode).setAlignSelf(CSSAlign.AUTO);
verify(reactShadowNode).setAlignItems(CSSAlign.STRETCH);
verify(reactShadowNode).setJustifyContent(CSSJustify.FLEX_START);
verify(reactShadowNode).setPositionType(CSSPositionType.RELATIVE);
}
public void setDensity(float density) {
this.density = density;
if (displayMetrics != null) {
displayMetrics.density = density;
}
}