1、非阻塞提示框
symbian定義了幾個(gè)提示類，分別是：
confirm類：CAknConfirmationNote
info類： CAknInformationNote
warning類：CAknWarningNote
error類：CAknErrorNote
頭文件：aknnotewrappers.h
lib： avkon.lib eikcdlg.lib eikctl.lib
Code：
TBuf<32> buf;
buf.Copy(_L("info note"));
CAknInformationNote* iInfoNote = new (ELeave) CAknInformationNote;
iInfoNote->ExecuteLD(buf);
2、阻塞提示框
void CEikonEnv::AlertWin(const TDesC& aMsg);
void CEikonEnv::AlertWin(const TDesC& aMsg1,const TDesC& aMsg2);
static void CEikonEnv::InfoWinL(const TDesC& aFirstLine,const TDesC& aSecondLine);
AlertWin為CEikonEnv類的非靜態(tài)成員函數(shù)，InfoWinL為CEikonEnv類的靜態(tài)成員函數(shù)。
AlertWin只能在ui、view和container中使用，使用方法如下：
Code:
iEikonEnv->AlertWin(_L("text"));
InfoWinL可以在任意類中使用，使用方法如下：
Code:
CEikonEnv::Static()->InfoWinL(_L("note:"), _L("text"));
為方便使用，常定義宏來(lái)使用這類提示框，如：
Code:
#define DEBUG_DIALOG(x) iEikonEnv->AlertWin(##x);
#define DEBUG_DIALOG1(x) CEikonEnv::Static()->InfoWinL(_L("note:"), ##x);
#define DEBUG_DIALOG2(x,y) CEikonEnv::Static()->InfoWinL(##x, ##y);
可以這么使用：
TBuf<32> buf;
buf.Copy(_L("test"));
DEBUG_DIALOG(buf);
DEBUG_DIALOG1(buf);
DEBUG_DIALOG2(buf,_L("text"));
此類提示框阻塞線程，只有用戶按鍵退出提示框后，后面的程序才能接著運(yùn)行。
3、進(jìn)度條對(duì)話框
進(jìn)度條對(duì)話框類為：
CAknProgressDialog
頭文件：aknprogressdialog.h
lib：avkon.lib eikcdlg.lib eikctl.lib
Code:
//初始化進(jìn)度條
CAknProgressDialog* iProgressDialog;
CEikProgressInfo* iProgressInfo;
iProgressDialog = new ( ELeave ) CAknProgressDialog( reinterpret_cast
<CEikDialog**>
( &iProgressDialog ) );
iProgressDialog->SetCallback( this );
iProgressDialog->PrepareLC( R_RESOURCE_PROGRESS_NOTE ); //從資源文件構(gòu)造對(duì)話框，資源見下面的定義
iProgressInfo = iProgressDialog->GetProgressInfoL();
iProgressInfo->SetFinalValue( aMaxValue ); //設(shè)置進(jìn)度條的最大值（結(jié)束值）
iProgressDialog->RunLD();
//更新進(jìn)度條
iProgressInfo->IncrementAndDraw( aStep );
//結(jié)束進(jìn)度條
iProgressDialog->ProcessFinishedL();
delete iProgressDialog;
RESOURCE DIALOG R_RESOURCE_PROGRESS_NOTE //進(jìn)度條對(duì)話框資源
{
flags = EAknProgressNoteFlags;
buttons = R_AVKON_SOFTKEYS_CANCEL;
items =
{
DLG_LINE
{
type = EAknCtNote;
id = EMagicBoxCtrlIdProgressNote;
control = AVKON_NOTE
{
layout = EProgressLayout;
singular_label = "對(duì)話框中顯示的文字";
plural_label = "download";
imagefile = AVKON_BMPFILE_NAME; //第二版中 圖標(biāo)文件為 #define AVKON_BMPFILE_NAME "z:\\system\\data\\avkon.mbm"
imageid = EMbmAvkonQgn_note_sml; //這兩項(xiàng)可更改顯示不同圖標(biāo)
imagemask = EMbmAvkonQgn_note_sml_mask;
};
}
};
}
注意：In Series 60 3rd edition, avkon.mbm was replaced by avkon2.mbm and moved to a different location (and the SDK forgot to mention this and still provides erroneous location).
Old entry:
imagefile = "z:\\system\data\avkon.mbm";
New entry:
imagefile = "z:\\resource\apps\avkon2.mbm";
4、等待對(duì)話框
等待對(duì)話框要用到的類：CAknGlobalNote
頭文件：aknglobalnote.h
lib：aknnotify.lib eiksrv.lib
Code:
//顯示等待對(duì)話框
CAknGlobalNote* globalNote = CAknGlobalNote::NewL();
CleanupStack::PushL( globalNote );
TInt iWaitNoteId = globalNote->ShowNoteL( EAknGlobalWaitNote, _L("對(duì)話框中顯示的文字") );
CleanupStack::PopAndDestroy();
//結(jié)束等待對(duì)話框
CAknGlobalNote * note = CAknGlobalNote::NewL();
CleanupStack::PushL( note );
note->CancelNoteL( iWaitNoteId );
CleanupStack::PopAndDestroy();
注意：
CAknGlobalNote類除了顯示等待對(duì)話框外還可顯示多種類型的全局對(duì)話框，具體類型可通過ShowNoteL的第一個(gè)參數(shù)指定，可能的類型如下：
Code:
enum TAknGlobalNoteType
{
EAknGlobalInformationNote = 1,
EAknGlobalWarningNote,
EAknGlobalConfirmationNote,
EAknGlobalErrorNote,
EAknGlobalChargingNote,
EAknGlobalWaitNote,
EAknGlobalPermanentNote,
EAknGlobalNotChargingNote,
EAknGlobalBatteryFullNote,
EAknGlobalBatteryLowNote,
EAknGlobalRechargeBatteryNote,
EAknCancelGlobalNote,
EAknGlobalTextNote
};
5、詢問對(duì)話框
詢問對(duì)話框用到的類：CAknQueryDialog
頭文件：AknQueryDialog.h
lib：avkon.lib
Code:
CAknQueryDialog* dlg;
dlg = CAknQueryDialog::NewL( CAknQueryDialog::ENoTone );
dlg->PrepareLC( R_RESOURCE_QUERY_DIALOG ); //從資源文件構(gòu)造對(duì)話框，資源見下面的定義
TInt ret = dlg->RunLD(); //若用戶選擇“是”，返回非0，選擇“否”，則返回0
RESOURCE DIALOG R_RESOURCE_QUERY_DIALOG //詢問對(duì)話框資源
{
flags = EGeneralQueryFlags;
buttons = R_AVKON_SOFTKEYS_YES_NO; //CBA顯示“是”和“否”兩個(gè)按鈕
items =
{
DLG_LINE
{
type = EAknCtQuery;
id = EGeneralQuery;
control = AVKON_CONFIRMATION_QUERY //表示這是confirm詢問對(duì)話框，用戶選擇“是”或“否”
{
layout = EConfirmationQueryLayout;
label = "對(duì)話框中顯示的文字";
};
}
};
}
此類對(duì)話框可以有聲音提示，由NewL的const TTone& aTone參數(shù)指定，可能的值如下：
Code:
enum TTone {
/// No tone is played
ENoTone = 0,
/// A confirmation tone is played
EConfirmationTone = EAvkonSIDConfirmationTone,
/// A warning tone is played
EWarningTone = EAvkonSIDWarningTone,
/// An error tone is played
EErrorTone = EAvkonSIDErrorTone
};
通過定義不同的詢問對(duì)話框資源，可實(shí)現(xiàn)不同的詢問對(duì)話框，如讓用戶輸入文字的詢問對(duì)話框資源定義如下：
Code:
RESOURCE DIALOG R_RESOURCE_DATA_QUERY
{
flags = EGeneralQueryFlags;
buttons = R_AVKON_SOFTKEYS_OK_CANCEL; //CBA按鈕顯示“確定”和“取消”
items =
{
DLG_LINE
{
type = EAknCtQuery;
id = EGeneralQuery;
control = AVKON_DATA_QUERY //表示這是data詢問對(duì)話框，需要用戶輸入內(nèi)容
{
layout = EDataLayout;
label = "提示內(nèi)容";
control = EDWIN
{
flags = EEikEdwinNoHorizScrolling | EEikEdwinResizable;
width = 30;
lines = 2;
maxlength = 159;
};
};
}
};
}
Code:
TBuf<128> msg;
CAknTextQueryDialog* dlg = new (ELeave) CAknTextQueryDialog(msg,CAknQueryDialog::ENoTone);
TInt ret = dlg->ExecuteLD(R_RESOURCE_DATA_QUERY);
用戶輸入內(nèi)容后按“確定”，內(nèi)容就存儲(chǔ)到msg中，函數(shù)返回非0；按“取消”，函數(shù)返回0。
這里用到的類是CAknQueryDialog的子類CAknTextQueryDialog。
CAknQueryDialog的子類有：
Code:
CAknFloatingPointQueryDialog //This class should be used when user is reguest to enter a flotaing point number
CAknFixedPointQueryDialog //...
CAknDurationQueryDialog //This class should be used when user is reguest to enter duration
CAknIpAddressQueryDialog //This class should be used when user is reguest to enter IP address,@since 2.1
CAknMultiLineDataQueryDialog //Query Dialog with data input on more than one line (2 lines at the moment)
Create using NewL methods and passing parameters as appropriate.
Attention: When deriving from this class, you must call SetDataL during
second phase construction.
CAknMultiLineIpQueryDialog //...
CAknNumberQueryDialog //This class should be used when user is reguest to enter number
CAknTextQueryDialog //This class should be used when user is reguest to enter plain text, secret text, phonenumber or PIN-code
CAknTimeQueryDialog //This class should be used when user is reguest to enter time or date
使用不同的類，資源文件會(huì)有所不同。
另外，在資源中定義EDWIN時(shí)，可指定輸入發(fā)，如：
Code:
control = EDWIN
{
flags = EEikEdwinNoHorizScrolling | EEikEdwinResizable;
width = 11;
lines = 1;
maxlength = 11;
avkon_flags = EAknEditorFlagFixedCase |
EAknEditorFlagNoT9 | EAknEditorFlagSupressShiftMenu; //EAknEditorFlagSupressShiftMenu屏蔽切換輸入法鍵
allowed_input_modes = EAknEditorNumericInputMode;
default_input_mode = EAknEditorNumericInputMode;
numeric_keymap = EAknEditorPlainNumberModeKeymap;
};
以上寫法表示默認(rèn)輸入法為數(shù)字，并且屏蔽了輸入法切換鍵，即不能通過輸入法切換鍵來(lái)切換輸入法。
6、編輯框
編輯框使用的類：CEikGlobalTextEditor
頭文件：eikgted.h
Code:
CEikGlobalTextEditor* iGKeyEd;
TBuf<128> iKeyText;
TResourceReader reader;
iCoeEnv->CreateResourceReaderLC( reader, R_RESOURCE_EDITOR ); //從資源文件構(gòu)造編輯框，資源見下面的定義
iGKeyEd = new ( ELeave ) CEikGlobalTextEditor;
iGKeyEd->SetContainerWindowL( *this );
iGKeyEd->ConstructFromResourceL( reader );
CleanupStack::PopAndDestroy(); // Resource reader
//設(shè)置編輯框的初始文本和位置，編輯框大小在資源中定義
TBuf<32> buf;
buf.Copy(_L("demo"));
iGKeyEd->SetTextL(&buf);
iGKeyEd->SetExtent( TPoint(5,2), iGKeyEd->MinimumSize() );
iGKeyEd->SetFocus(ETrue);
// iGKeyEd->SetReadOnly(ETrue); //設(shè)置編輯框?yàn)橹蛔x
//使文字居中
CParaFormat paraFormat;
TParaFormatMask paraFormatMask;
paraFormatMask.SetAttrib( EAttAlignment ); // set mask
paraFormat.iHorizontalAlignment = CParaFormat::ECenterAlign;
iGKeyEd->ApplyParaFormatL( ¶Format, paraFormatMask );
iGKeyEd->GetText(iKeyText); //獲取編輯框中的內(nèi)容，保存到iKeyText中
RESOURCE GTXTED R_RESOURCE_EDITOR //編輯框資源
{
flags = EAknEditorFlagDefault;
width = 53;
height = 16;
numlines = 1;
textlimit= 1;
fontcontrolflags = EGulFontControlAll;
fontnameflags = EGulNoSymbolFonts;
//這里也可設(shè)置輸入法
// avkon_flags = EAknEditorFlagFixedCase |
EAknEditorFlagNoT9 | EAknEditorFlagSupressShiftMenu; //EAknEditorFlagSupressShiftMenu屏蔽切換輸入法鍵
// allowed_input_modes = EAknEditorNumericInputMode;
// default_input_mode = EAknEditorNumericInputMode;
// numeric_keymap = EAknEditorPlainNumberModeKeymap;
}
注意，要使編輯框正常顯示，記得更改container的CountComponentControls和ComponentControl函數(shù)，正確處理控件數(shù)目和編輯框指針。另外，要使編輯框能正常接收按鍵事件，要顯示調(diào)用編輯框的OfferKeyEventL函數(shù)，如下：
Code:
TKeyResponse CMobileGuardSetKeyContainer::OfferKeyEventL( const TKeyEvent& aKeyEvent, TEventCode aType )
{
return iGKeyEd->OfferKeyEventL( aKeyEvent, aType );
}