javascript/NativeScript
1
0
Fork 0
mirror of https://github.com/NativeScript/NativeScript.git synced 2025-11-05 13:26:48 +08:00
Code Issues Packages Projects Releases Wiki Activity

scroll event implemented

Browse Source
This commit is contained in:
Vladimir Enchev
2015-11-10 09:19:54 +02:00
parent c85d2a7afc
commit 77852c9672
5 changed files with 195 additions and 45 deletions
Download Patch File Download Diff File Expand all files Collapse all files

56
ui/scroll-view/scroll-view.android.ts
View File

@@ -1,9 +1,9 @@
import dependencyObservable = require("ui/core/dependency-observable");
import definition = require("ui/scroll-view");
import contentView = require("ui/content-view");
import common = require("./scroll-view-common");
import utils = require("utils/utils");
import enums = require("ui/enums");
import proxy = require("ui/core/proxy");
global.moduleMerge(common, exports);
@@ -11,9 +11,10 @@ common.orientationProperty.metadata.onValueChanged = function scrollViewOrientat
(<ScrollView>data.object)._onOrientationChanged(data.oldValue, data.newValue);
}
export class ScrollView extends contentView.ContentView implements definition.ScrollView {
export class ScrollView extends common.ScrollView implements definition.ScrollView {
private _android: org.nativescript.widgets.VerticalScrollView | org.nativescript.widgets.HorizontalScrollView;
private _androidViewId: number;
private handler: android.view.ViewTreeObserver.OnScrollChangedListener;
get android(): android.view.ViewGroup {
return this._android;
@@ -23,13 +24,6 @@ export class ScrollView extends contentView.ContentView implements definition.Sc
return this._android;
}
get orientation(): string {
return this._getValue(common.orientationProperty);
}
set orientation(value: string) {
this._setValue(common.orientationProperty, value);
}
get horizontalOffset(): number {
if (!this._android) {
return 0;
@@ -68,8 +62,7 @@ export class ScrollView extends contentView.ContentView implements definition.Sc
if (animated) {
this._android.smoothScrollTo(0, value);
}
else {
} else {
this._android.scrollTo(0, value);
}
}
@@ -81,8 +74,7 @@ export class ScrollView extends contentView.ContentView implements definition.Sc
if (animated) {
this._android.smoothScrollTo(value, 0);
}
else {
} else {
this._android.scrollTo(value, 0);
}
}
@@ -91,8 +83,7 @@ export class ScrollView extends contentView.ContentView implements definition.Sc
public _createUI() {
if (this.orientation === enums.Orientation.horizontal) {
this._android = new org.nativescript.widgets.HorizontalScrollView(this._context);
}
else {
} else {
this._android = new org.nativescript.widgets.VerticalScrollView(this._context);
}
@@ -101,17 +92,6 @@ export class ScrollView extends contentView.ContentView implements definition.Sc
}
this._android.setId(this._androidViewId);
var that = new WeakRef(this);
this._android.getViewTreeObserver().addOnScrollChangedListener(new android.view.ViewTreeObserver.OnScrollChangedListener({
onScrollChanged: function () {
var rootScrollView = that.get();
if (rootScrollView && rootScrollView.android) {
var scrollX = rootScrollView.android.getScrollX(); //for horizontalScrollView
var scrollY = rootScrollView.android.getScrollY(); //for verticalScrollView
}
}
});
}
public _onOrientationChanged(oldValue: string, newValue: string) {
@@ -127,4 +107,28 @@ export class ScrollView extends contentView.ContentView implements definition.Sc
}
}
}
protected attachNative() {
var that = new WeakRef(this);
this.handler = new android.view.ViewTreeObserver.OnScrollChangedListener({
onScrollChanged: function () {
var rootScrollView = that.get();
if (rootScrollView && rootScrollView.android) {
rootScrollView.notify(<definition.ScrollEventData>{
object: rootScrollView,
eventName: definition.ScrollView.scrollEvent,
scrollX: rootScrollView.android.getScrollX() / utils.layout.getDisplayDensity(),
scrollY: rootScrollView.android.getScrollY() / utils.layout.getDisplayDensity()
});
}
}
});
this._android.getViewTreeObserver().addOnScrollChangedListener(this.handler);
}
protected dettachNative() {
this._android.getViewTreeObserver().removeOnScrollChangedListener(this.handler);
this.handler = null;
}
}