當我們進行全屏程序開發的時候,對編輯框中當前的輸入法要時行判斷,以方便我們在界面上貼圖表現,通過下面的三步可以完成這個功能:
1、在.h文件中加入相關的頭文件
#include // for CAknEnv::Static()
#include //for CAknIndicatorContainer
2、在.h文件中加入用到的類定義
struct S_uid: public TUid
{
S_uid(int i)
{
iUid = i;
}
};
class MAknEditingStateIndicator
{
public:
virtual void SetState(TAknEditingState aState) = 0;
virtual CAknIndicatorContainer *IndicatorContainer() = 0;
};
在系統的頭文件(C:/Symbian/7.0s/Series60_v20/Epoc32/include/aknenv.h )中類CAknEnv用到了類MAknEditingStateIndicator,但SDK中沒有提供這個類定義,所以要在這裏加上。
3、在.cpp文件中實現
void TestInputMethod()
{
MAknEditingStateIndicator * ei = CAknEnv::Static()->EditingStateIndicator() ;
if (!ei) return;
CAknIndicatorContainer *ic = ei->IndicatorContainer();
if (!ic) return;
if(ic->IndicatorState(S_uid(EAknNaviPaneEditorIndicatorT9) ))
{
//to do ... if input method = T9 (即拼音和筆畫)
}
else if(ic->IndicatorState(S_uid(EAknNaviPaneEditorIndicatorLowerCase)))
{
//to do ... if input method = "abc";
}
else if(ic->IndicatorState(S_uid(EAknNaviPaneEditorIndicatorUpperCase)))
{
//to do ... if input method = "ABC";
}
else if(ic->IndicatorState(S_uid(EAknNaviPaneEditorIndicatorTextCase)))
{
//to do ... if input method = "Abc";
}
else if(ic->IndicatorState(S_uid(EAknNaviPaneEditorIndicatorNumberCase)))
{
//to do ... if input method = "123";
}
}
用這種方法,當前的輸入法是拼音和筆畫時,IndicatorState(S_uid(EAknNaviPaneEditorIndicatorT9) )都爲TRUE,因爲輸入法的切換是按一定的順序的,所以可以考慮用順序來進一步判斷這兩種輸入法。
在SDK中的目錄C:/Symbian/7.0s/Series60_v20/Epoc32/include/avkon.hrh(或C:/Symbian/8.0a/S60_2nd_FP2_SC/epoc32/include/avkon.hrh)中定義上面用到的一些枚舉值。
// Navi pane editor indicators
EAknNaviPaneEditorIndicatorT9 = 100,
EAknNaviPaneEditorIndicatorUpperCase,
EAknNaviPaneEditorIndicatorLowerCase,
EAknNaviPaneEditorIndicatorTextCase,
EAknNaviPaneEditorIndicatorNumberCase,
EAknNaviPaneEditorIndicatorQuery,
EAknNaviPaneEditorIndicatorQwertyShift,
EAknNaviPaneEditorIndicatorArabicCase = 130,
EAknNaviPaneEditorIndicatorHebrewCase,
EAknNaviPaneEditorIndicatorArabicIndicNumberCase,