本文介绍了问题与onClickListner与LableField黑莓的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
我开发一个应用程序中，我需要在特定的电话号码的来电对，我有采取 LableField 并 Number.setChangeListener（本）; 并执行其方法 fieldChanged ，并尝试处理事件，但我不能能与此做 lablefield
这里是code：
进口net.rim.blackberry.api.invoke.Invoke;
进口net.rim.blackberry.api.invoke.PhoneArguments;
进口net.rim.device.api.system.Bitmap;
进口net.rim.device.api.system.Display;
进口net.rim.device.api.ui.Color;
进口net.rim.device.api.ui.Field;
进口net.rim.device.api.ui.FieldChangeListener;
进口net.rim.device.api.ui.Font;
进口net.rim.device.api.ui.FontFamily;
进口net.rim.device.api.ui.Graphics;
进口net.rim.device.api.ui.component.BitmapField;
进口net.rim.device.api.ui.component.Dialog;
进口net.rim.device.api.ui.component.LabelField;
进口net.rim.device.api.ui.component.NullField;
进口net.rim.device.api.ui.container.HorizontalFieldManager;
进口net.rim.device.api.ui.container.MainScreen;
进口net.rim.device.api.ui.container.VerticalFieldManager;
进口net.rim.device.api.ui.decor.BackgroundFactory;公共类AboutM1扩展MainScreen实现FieldChangeListener { VerticalFieldManager TOPVFM，DescriptionVFM，BottomVFM;
HorizontalFieldManager TOPHFM，CallHFM，EmailHFM，VIsitUsHFM; 的labelField toplable，说明，广告描述，数量，愈伤组织，电子邮件，EMAILID，Visitus，VisitLink; 位图logom1;
BitmapField imgField; 公共AboutM1（）{ （（VerticalFieldManager）getMainManager（））
.setBackground（BackgroundFactory
.createSolidBackground（0xEDEDED））; TOPVFM =新VerticalFieldManager（USE_ALL_WIDTH）;
TOPHFM =新HorizontalFieldManager（
FIELD_HCENTER | FIELD_VCENTER）;
AllBITMAPDeclaration（）; toplable =新的LabelField（\\ n欢迎来到，FIELD_BOTTOM）{
公共无效漆（图形G）{
g.setBackgroundColor（0xECECEC）;
g.fillRect（0，0，的getWidth（），的getHeight（））;
g.setColor（Color.RED）; g.clear（）;
super.paint（G）;
}
}; 的FontFamily fontFamily中[] = FontFamily.getFontFamilies（）;
字体的字体= fontFamily中[1] .getFont（FontFamily.CBTF_FONT，20）;
字体= fontFamily中[1] .getFont（Font.BOLD，25）;
toplable.setFont（字体）;
imgField =新BitmapField（logom1，FIELD_BOTTOM）; TOPHFM.add（toplable）;
TOPHFM.add（imgField）; TOPVFM.add（TOPHFM）;
加（TOPVFM）;
莱恩的LabelField =新的LabelField（
_______________________________________）{
保护无效漆（图形G）{
g.setColor（0x324F85）;
super.paint（G）;
} }; 加（绿线）; DescriptionVFM =新VerticalFieldManager（
VERTICAL_SCROLL）;
说明=新的LabelField（
\\ nasdasdasd张大SD ASD一个SD reert儿之三T E，
USE_ALL_WIDTH）;
说明2 =新的LabelField（
\\ n \\ n公司简介\\ n对于客户关怀\\ n \\ n）;
/ *
*添加（说明）;加（说明2）;
* / DescriptionVFM.add（说明）;
DescriptionVFM.add（新NullField（NullField.FOCUSABLE））;
DescriptionVFM.add（说明2）;
/ ******************************底部区域***************** ******** / BottomVFM =新VerticalFieldManager（USE_ALL_WIDTH）;
CallHFM =新HorizontalFieldManager（
FIELD_VCENTER）;
痂=新的LabelField（呼叫，FIELD_VCENTER）;
数=新的LabelField（+ 91-79-30487400，FIELD_VCENTER）{
保护无效漆（图形G）{
g.setColor（0x324F85）; // g.fillRoundRect（0，0，50，5，7，7）;
super.paint（G）;
} };
字体= fontFamily中[2] .getFont（Font.BOLD，18）;
Number.setFont（字体）; CallHFM.add（愈伤组织）;
CallHFM.add（号码）;
Number.setChangeListener（本）; EmailHFM =新HorizontalFieldManager（FIELD_VCENTER）;
电子邮件=新的LabelField（电子邮件：FIELD_VCENTER）;
EMAILID =新的LabelField（[email protected]，FIELD_VCENTER）{
保护无效漆（图形G）{
g.setColor（0x324F85）;
super.paint（G）;
}
}; EmailID.setFont（字体）;
EmailID.setChangeListener（本）;
EmailHFM.add（电子邮件）;
EmailHFM.add（EMAILID）; VIsitUsHFM =新HorizontalFieldManager（FIELD_VCENTER）;
Visitus =新的LabelField（访问我们的网站：FIELD_VCENTER）;
VisitLink =新的LabelField（www.asdasd.com，FIELD_VCENTER）{
保护无效漆（图形G）{
g.setColor（0x324F85）;
super.paint（G）;
}
}; VisitLink.setFont（字体）;
VisitLink.setChangeListener（本）;
VIsitUsHFM.add（Visitus）;
VIsitUsHFM.add（VisitLink）;
BottomVFM.add（CallHFM）;
BottomVFM.add（EmailHFM）;
BottomVFM.add（VIsitUsHFM）; //添加（BottomVFM）;
DescriptionVFM.add（BottomVFM）;
/ ********************************* END BOTTOM ************** ********************************** /
加（DescriptionVFM）; } 私人无效AllBITMAPDeclaration（）{
// TODO自动生成方法存根
logom1 = Bitmap.getBitma $ P $的PSource（logo36X36.png）;
} 公共无效fieldChanged（场场，诠释上下文）{
// TODO自动生成方法存根
如果（场数==）
{
Dialog.alert（asdasd）;
/ * PhoneArguments参数=新PhoneArguments（PhoneArguments.ARG_CALL，180065449877）;
Invoke.invokeApplication（Invoke.APP_TYPE_PHONE，参数）; * /
}
如果（场== EMAILID）
{
Dialog.alert（asdasd）;
}
如果（场== VisitLink）
{
Dialog.alert（asdasd）; } }
}
解决方案
试试这个 -
总数的LabelField =新的LabelField（+ 91-79-30345487400a5675675676，FIELD_VCENTER | Field.FOCUSABLE）{
保护无效漆（图形G）{
g.setColor（0x324F85）; // g.fillRoundRect（0，0，50，5，7，7）;
super.paint（G）;
}
保护布尔navigationClick（INT的地位，诠释时间）{
Dialog.alert（点击）;
返回super.navigationClick（状态，时间）;
}
};
加号码）;
I am developing one app in which i need to call at particular phone number for that i have take LableField and make Number.setChangeListener(this); and implement its method fieldChanged and try to handle event but i cant able to do it with this lablefield
Here is code ::
import net.rim.blackberry.api.invoke.Invoke;
import net.rim.blackberry.api.invoke.PhoneArguments;
import net.rim.device.api.system.Bitmap;
import net.rim.device.api.system.Display;
import net.rim.device.api.ui.Color;
import net.rim.device.api.ui.Field;
import net.rim.device.api.ui.FieldChangeListener;
import net.rim.device.api.ui.Font;
import net.rim.device.api.ui.FontFamily;
import net.rim.device.api.ui.Graphics;
import net.rim.device.api.ui.component.BitmapField;
import net.rim.device.api.ui.component.Dialog;
import net.rim.device.api.ui.component.LabelField;
import net.rim.device.api.ui.component.NullField;
import net.rim.device.api.ui.container.HorizontalFieldManager;
import net.rim.device.api.ui.container.MainScreen;
import net.rim.device.api.ui.container.VerticalFieldManager;
import net.rim.device.api.ui.decor.BackgroundFactory;
public class AboutM1 extends MainScreen implements FieldChangeListener {
VerticalFieldManager TOPVFM , DescriptionVFM,BottomVFM;
HorizontalFieldManager TOPHFM,CallHFM,EmailHFM,VIsitUsHFM ;
LabelField toplable,Description,Description2,Number,callus,Email,EmailID,Visitus,VisitLink;
Bitmap logom1;
BitmapField imgField;
public AboutM1() {
((VerticalFieldManager) getMainManager())
.setBackground(BackgroundFactory
.createSolidBackground(0xEDEDED));
TOPVFM = new VerticalFieldManager(USE_ALL_WIDTH);
TOPHFM = new HorizontalFieldManager(
FIELD_HCENTER | FIELD_VCENTER);
AllBITMAPDeclaration();
toplable = new LabelField("\n Welcome to", FIELD_BOTTOM) {
public void paint(Graphics g) {
g.setBackgroundColor(0xECECEC);
g.fillRect(0, 0, getWidth(), getHeight());
g.setColor(Color.RED);
g.clear();
super.paint(g);
}
};
FontFamily fontFamily[] = FontFamily.getFontFamilies();
Font font = fontFamily[1].getFont(FontFamily.CBTF_FONT, 20);
font = fontFamily[1].getFont(Font.BOLD, 25);
toplable.setFont(font);
imgField = new BitmapField(logom1, FIELD_BOTTOM);
TOPHFM.add(toplable);
TOPHFM.add(imgField);
TOPVFM.add(TOPHFM);
add(TOPVFM);
LabelField Greenline = new LabelField(
"_______________________________________") {
protected void paint(Graphics g) {
g.setColor(0x324F85);
super.paint(g);
}
};
add(Greenline);
DescriptionVFM = new VerticalFieldManager(
VERTICAL_SCROLL);
Description = new LabelField(
"\nasdasdasd as da sd asd a sd reert er ter t e",
USE_ALL_WIDTH);
Description2 = new LabelField(
"\n\n About Us \n For customer care \n\n");
/*
* add(Description); add(Description2);
*/
DescriptionVFM.add(Description);
DescriptionVFM.add(new NullField(NullField.FOCUSABLE));
DescriptionVFM.add(Description2);
/******************************Bottom Area******************************************/
BottomVFM = new VerticalFieldManager(USE_ALL_WIDTH );
CallHFM = new HorizontalFieldManager(
FIELD_VCENTER);
callus = new LabelField("Call: ", FIELD_VCENTER);
Number = new LabelField("+91-79-30487400", FIELD_VCENTER) {
protected void paint(Graphics g) {
g.setColor(0x324F85);
// g.fillRoundRect(0, 0, 50, 5, 7, 7);
super.paint(g);
}
};
font = fontFamily[2].getFont(Font.BOLD, 18);
Number.setFont(font);
CallHFM.add(callus);
CallHFM.add(Number);
Number.setChangeListener(this);
EmailHFM = new HorizontalFieldManager(FIELD_VCENTER);
Email = new LabelField("Email: ", FIELD_VCENTER);
EmailID = new LabelField("[email protected]", FIELD_VCENTER) {
protected void paint(Graphics g) {
g.setColor(0x324F85);
super.paint(g);
}
};
EmailID.setFont(font);
EmailID.setChangeListener(this);
EmailHFM.add(Email);
EmailHFM.add(EmailID);
VIsitUsHFM = new HorizontalFieldManager(FIELD_VCENTER);
Visitus = new LabelField("Visit us at: ", FIELD_VCENTER);
VisitLink = new LabelField("www.asdasd.com", FIELD_VCENTER) {
protected void paint(Graphics g) {
g.setColor(0x324F85);
super.paint(g);
}
};
VisitLink.setFont(font);
VisitLink.setChangeListener(this);
VIsitUsHFM.add(Visitus);
VIsitUsHFM.add(VisitLink);
BottomVFM.add(CallHFM);
BottomVFM.add(EmailHFM);
BottomVFM.add(VIsitUsHFM);
// add(BottomVFM);
DescriptionVFM.add(BottomVFM);
/********************************* END BOTTOM ************************************************/
add(DescriptionVFM);
}
private void AllBITMAPDeclaration() {
// TODO Auto-generated method stub
logom1 = Bitmap.getBitmapResource("logo36X36.png");
}
public void fieldChanged(Field field, int context) {
// TODO Auto-generated method stub
if(field == Number )
{
Dialog.alert("asdasd");
/* PhoneArguments arguments = new PhoneArguments(PhoneArguments.ARG_CALL, "180065449877");
Invoke.invokeApplication(Invoke.APP_TYPE_PHONE, arguments);*/
}
if(field == EmailID)
{
Dialog.alert("asdasd");
}
if(field == VisitLink)
{
Dialog.alert("asdasd");
}
}
}
解决方案
try this -
LabelField Number = new LabelField("+91-79-30345487400a5675675676", FIELD_VCENTER|Field.FOCUSABLE) {
protected void paint(Graphics g) {
g.setColor(0x324F85);
// g.fillRoundRect(0, 0, 50, 5, 7, 7);
super.paint(g);
}
protected boolean navigationClick(int status, int time) {
Dialog.alert("clicked");
return super.navigationClick(status, time);
}
};
add(Number);
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