我需要在浏览器窗口调整大小时调整大小.我在我的弹出构造函数中添加了ResizeHandler,但在几个浏览器调整大小center()函数后创建新的弹出窗口,而不是居中当前.这里有一些我已经尝试过的代码.

请告诉我如何解决这个问题或建议一些解决方案.

public BigPopup() {

...

final BigPopup self = this;

Window.addResizeHandler(new ResizeHandler() {

@Override

public void onResize(ResizeEvent event) {

self.setHeight(getNewHeight());

self.setWidth(getNewWidth());

self.center();

}

});

...

}

public BigPopup() {

...

Window.addResizeHandler(new ResizeHandler() {

@Override

public void onResize(ResizeEvent event) {

BigPopup.this.setHeight(getNewHeight());

BigPopup.this.setWidth(getNewWidth());

BigPopup.this.center();

}

});

...

}

添加：

我创建了一个简单的项目来说明问题：

弹出类

package tesr.client;

import com.google.gwt.core.client.GWT;

import com.google.gwt.event.dom.client.ClickEvent;

import com.google.gwt.event.logical.shared.ResizeEvent;

import com.google.gwt.event.logical.shared.ResizeHandler;

import com.google.gwt.uibinder.client.UiBinder;

import com.google.gwt.uibinder.client.UiField;

import com.google.gwt.uibinder.client.UiHandler;

import com.google.gwt.user.client.Window;

import com.google.gwt.user.client.ui.Button;

import com.google.gwt.user.client.ui.PopupPanel;

import com.google.gwt.user.client.ui.Widget;

public class BigPopup extends PopupPanel {

private static BigPopupUiBinder uiBinder = GWT

.create(BigPopupUiBinder.class);

interface BigPopupUiBinder extends UiBinder {

}

@UiField

Button tstBtn;

@UiHandler("tstBtn")

void click(ClickEvent event) {

this.hide();

}

public int[] getSize() {

int[] mas = new int[2];

int x = Window.getClientWidth();

int y = Window.getClientHeight();

if (x >= 1024) {

mas[0] = x - 100;

mas[1] = y - 100;

} else {

mas[0] = 1024;

mas[1] = 768;

}

return mas;

}

public BigPopup() {

setWidget(uiBinder.createAndBindUi(this));

Window.addResizeHandler(new ResizeHandler() {

@Override

public void onResize(ResizeEvent event) {

BigPopup.this.setHeight(getSize()[1] + "px");

BigPopup.this.setWidth(getSize()[0] + "px");

BigPopup.this.center();

}

});

this.setHeight(getSize()[1] + "px");

this.setWidth(getSize()[0] + "px");

this.setAnimationEnabled(true);

this.setGlassEnabled(true);

this.setAutoHideEnabled(false);

}

}

用于uibinder的XML

xmlns:g="urn:import:com.google.gwt.user.client.ui">

和主要班级

package tesr.client;

import com.google.gwt.core.client.EntryPoint;

import com.google.gwt.event.dom.client.ClickEvent;

import com.google.gwt.event.dom.client.ClickHandler;

import com.google.gwt.user.client.ui.Button;

import com.google.gwt.user.client.ui.RootPanel;

public class AAA implements EntryPoint {

public void onModuleLoad() {

Button btn = new Button("Show Popup");

btn.addClickHandler(new ClickHandler() {

@Override

public void onClick(ClickEvent event) {

BigPopup popup = new BigPopup();

popup.center();

}

});

RootPanel.get().add(btn);

}

}

我犯了什么错？或许它是GWT的错误？