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Evaluate lazily android specific global values

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This commit is contained in:
Jason Zhekov
2016-04-20 17:21:29 +03:00
parent 615bbc9f2e
commit 826ab252e4
7 changed files with 55 additions and 36 deletions
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37
ui/transition/slide-transition.android.ts
View File

@@ -1,8 +1,9 @@
import transition = require("ui/transition");
import platform = require("platform");
import lazy from "utils/lazy";
var screenWidth = platform.screen.mainScreen.widthPixels;
var screenHeight = platform.screen.mainScreen.heightPixels;
var screenWidth = lazy(() => platform.screen.mainScreen.widthPixels);
var screenHeight = lazy(() => platform.screen.mainScreen.heightPixels);
export class SlideTransition extends transition.Transition {
private _direction: string;
@@ -18,80 +19,80 @@ export class SlideTransition extends transition.Transition {
case "left":
switch (transitionType) {
case transition.AndroidTransitionType.enter:
translationValues[0] = screenWidth;
translationValues[0] = screenWidth();
translationValues[1] = 0;
break;
case transition.AndroidTransitionType.exit:
translationValues[0] = 0;
translationValues[1] = -screenWidth;
translationValues[1] = -screenWidth();
break;
case transition.AndroidTransitionType.popEnter:
translationValues[0] = -screenWidth;
translationValues[0] = -screenWidth();
translationValues[1] = 0;
break;
case transition.AndroidTransitionType.popExit:
translationValues[0] = 0;
translationValues[1] = screenWidth;
translationValues[1] = screenWidth();
break;
}
break;
case "right":
switch (transitionType) {
case transition.AndroidTransitionType.enter:
translationValues[0] = -screenWidth;
translationValues[0] = -screenWidth();
translationValues[1] = 0;
break;
case transition.AndroidTransitionType.exit:
translationValues[0] = 0;
translationValues[1] = screenWidth;
translationValues[1] = screenWidth();
break;
case transition.AndroidTransitionType.popEnter:
translationValues[0] = screenWidth;
translationValues[0] = screenWidth();
translationValues[1] = 0;
break;
case transition.AndroidTransitionType.popExit:
translationValues[0] = 0;
translationValues[1] = -screenWidth;
translationValues[1] = -screenWidth();
break;
}
break;
case "top":
switch (transitionType) {
case transition.AndroidTransitionType.enter:
translationValues[0] = screenHeight;
translationValues[0] = screenHeight();
translationValues[1] = 0;
break;
case transition.AndroidTransitionType.exit:
translationValues[0] = 0;
translationValues[1] = -screenHeight;
translationValues[1] = -screenHeight();
break;
case transition.AndroidTransitionType.popEnter:
translationValues[0] = -screenHeight;
translationValues[0] = -screenHeight();
translationValues[1] = 0;
break;
case transition.AndroidTransitionType.popExit:
translationValues[0] = 0;
translationValues[1] = screenHeight;
translationValues[1] = screenHeight();
break;
}
break;
case "bottom":
switch (transitionType) {
case transition.AndroidTransitionType.enter:
translationValues[0] = -screenHeight;
translationValues[0] = -screenHeight();
translationValues[1] = 0;
break;
case transition.AndroidTransitionType.exit:
translationValues[0] = 0;
translationValues[1] = screenHeight;
translationValues[1] = screenHeight();
break;
case transition.AndroidTransitionType.popEnter:
translationValues[0] = screenHeight;
translationValues[0] = screenHeight();
translationValues[1] = 0;
break;
case transition.AndroidTransitionType.popExit:
translationValues[0] = 0;
translationValues[1] = -screenHeight;
translationValues[1] = -screenHeight();
break;
}
break;

17
ui/transition/transition.android.ts
View File

@@ -5,9 +5,10 @@ import pageModule = require("ui/page");
import * as animationModule from "ui/animation";
import types = require("utils/types");
import trace = require("trace");
import lazy from "utils/lazy";
var _sdkVersion = parseInt(platform.device.sdkVersion);
var _defaultInterpolator = new android.view.animation.AccelerateDecelerateInterpolator();
var _sdkVersion = lazy(() => parseInt(platform.device.sdkVersion));
var _defaultInterpolator = lazy(() => new android.view.animation.AccelerateDecelerateInterpolator());
var ENTER_POPEXIT_TRANSITION = "ENTER_POPEXIT_TRANSITION";
var EXIT_POPENTER_TRANSITION = "EXIT_POPENTER_TRANSITION";
@@ -31,7 +32,7 @@ export function _clearForwardTransitions(fragment: any): void {
fragment[EXIT_POPENTER_TRANSITION] = undefined;
}
if (_sdkVersion >= 21) {
if (_sdkVersion() >= 21) {
var exitTransition = (<any>fragment).getExitTransition();
if (exitTransition) {
trace.write(`Cleared Exit ${exitTransition.getClass().getSimpleName()} transition for ${fragment.getTag()}`, trace.categories.Transition);
@@ -51,7 +52,7 @@ export function _setAndroidFragmentTransitions(navigationTransition: frameModule
name = navigationTransition.name.toLowerCase();
}
var useLollipopTransition = name && (name.indexOf("slide") === 0 || name === "fade" || name === "explode") && _sdkVersion >= 21;
var useLollipopTransition = name && (name.indexOf("slide") === 0 || name === "fade" || name === "explode") && _sdkVersion() >= 21;
if (useLollipopTransition) {
// setEnterTransition: Enter
// setExitTransition: Exit
@@ -197,7 +198,7 @@ function _setUpNativeTransition(navigationTransition: frameModule.NavigationTran
nativeTransition.setInterpolator(interpolator);
}
else {
nativeTransition.setInterpolator(_defaultInterpolator);
nativeTransition.setInterpolator(_defaultInterpolator());
}
}
@@ -208,7 +209,7 @@ export function _onFragmentShown(fragment: android.app.Fragment, isBack: boolean
trace.write(`${fragment.getTag()} has been shown when going ${isBack ? "back" : "forward"}, but there is ${transitionType} ${fragment[relevantTransition]}. Will complete page addition when transition ends.`, trace.categories.Transition);
fragment[COMPLETE_PAGE_ADDITION_WHEN_TRANSITION_ENDS] = { isBack: isBack };
}
else if (_sdkVersion >= 21) {
else if (_sdkVersion() >= 21) {
var nativeTransition = isBack ? (<any>fragment).getReenterTransition() : (<any>fragment).getEnterTransition();
if (nativeTransition) {
trace.write(`${fragment.getTag() } has been shown when going ${isBack ? "back" : "forward"}, but there is ${transitionType} ${nativeTransition.getClass().getSimpleName()} transition. Will complete page addition when transition ends.`, trace.categories.Transition);
@@ -228,7 +229,7 @@ export function _onFragmentHidden(fragment: android.app.Fragment, isBack: boolea
trace.write(`${fragment.getTag()} has been hidden when going ${isBack ? "back" : "forward"}, but there is ${transitionType} ${fragment[relevantTransition]}. Will complete page removal when transition ends.`, trace.categories.Transition);
fragment[COMPLETE_PAGE_REMOVAL_WHEN_TRANSITION_ENDS] = true;
}
else if (_sdkVersion >= 21) {
else if (_sdkVersion() >= 21) {
var nativeTransition = isBack ? (<any>fragment).getReturnTransition() : (<any>fragment).getExitTransition();
if (nativeTransition) {
trace.write(`${fragment.getTag()} has been hidden when going ${isBack ? "back" : "forward"}, but there is ${transitionType} ${nativeTransition.getClass().getSimpleName()} transition. Will complete page removal when transition ends.`, trace.categories.Transition);
@@ -373,7 +374,7 @@ export class Transition implements definition.Transition {
this._interpolator = animation._resolveAnimationCurve(curve);
}
else {
this._interpolator = _defaultInterpolator;
this._interpolator = _defaultInterpolator();
}
this._id = transitionId++;
}