如何通过按Shift键更改android中的键盘布局

我目前正在开发自己的

输入法编辑器（IME）

，或者在Android中可以称为

软键盘

，我已经阅读并下载了作为SDK的一部分提供的

软键盘示例代码。我有以下代码来自：

现在我不知道如何摆脱上面提到的异常，并让我的代码正常工作。请解决这个问题
 对于您的问题，可能还有其他一些解决方案，但我已经做了一个技巧，并得出了以下结论：

步骤1您必须删除对方法的所有调用
updateShiftKeyState（getCurrentInputEditor（））在您的代码中，例如：

private void handleCharacter(int primaryCode, int[] keyCodes) {
if (isInputViewShown()) {
    if (mInputView.isShifted()) {
        primaryCode = Character.toUpperCase(primaryCode);
    }
}
if (isAlphabet(primaryCode) && mPredictionOn) {
    /**
     * Swapping here with my desired unicode character
     * */
    if (primaryCode >= 97 && primaryCode <= 122 ) {
        mComposing.append(Swap.swapLetters(primaryCode));
    }else{
        mComposing.append((char) primaryCode);
    }
    getCurrentInputConnection().setComposingText(mComposing, 1);
    //updateShiftKeyState(getCurrentInputEditorInfo()); // you can delete this method from your class and clean-up all the occurances of that 
    updateCandidates();
} else {
    getCurrentInputConnection().commitText(
            String.valueOf((char) primaryCode), 1);
}}

仅此而已，希望这对您有用…
您的问题可能还有其他解决方案，但我已经完成了一个技巧，并得出以下结论：

步骤1您必须删除对方法的所有调用
updateShiftKeyState（getCurrentInputEditor（））在您的代码中，例如：

private void handleCharacter(int primaryCode, int[] keyCodes) {
if (isInputViewShown()) {
    if (mInputView.isShifted()) {
        primaryCode = Character.toUpperCase(primaryCode);
    }
}
if (isAlphabet(primaryCode) && mPredictionOn) {
    /**
     * Swapping here with my desired unicode character
     * */
    if (primaryCode >= 97 && primaryCode <= 122 ) {
        mComposing.append(Swap.swapLetters(primaryCode));
    }else{
        mComposing.append((char) primaryCode);
    }
    getCurrentInputConnection().setComposingText(mComposing, 1);
    //updateShiftKeyState(getCurrentInputEditorInfo()); // you can delete this method from your class and clean-up all the occurances of that 
    updateCandidates();
} else {
    getCurrentInputConnection().commitText(
            String.valueOf((char) primaryCode), 1);
}}

就这些，希望这对你有用

private void handleShift() {
    if (mInputView == null) {
        return;
    }

    Keyboard currentKeyboard = mInputView.getKeyboard();
    if (mQwertyKeyboard == currentKeyboard) {
        // Alphabet keyboard
        checkToggleCapsLock();          
        mInputView.setKeyboard(mSindhi);            
    } else if (currentKeyboard == mSymbolsKeyboard) {
        mSymbolsKeyboard.setShifted(true);
        mInputView.setKeyboard(mSymbolsShiftedKeyboard);
        mSymbolsShiftedKeyboard.setShifted(true);
    } else if (currentKeyboard == mSymbolsShiftedKeyboard) {
        mSymbolsShiftedKeyboard.setShifted(false);
        mInputView.setKeyboard(mSymbolsKeyboard);
        mSymbolsKeyboard.setShifted(false);
    }
}

private void handleCharacter(int primaryCode, int[] keyCodes) {
if (isInputViewShown()) {
    if (mInputView.isShifted()) {
        primaryCode = Character.toUpperCase(primaryCode);
    }
}
if (isAlphabet(primaryCode) && mPredictionOn) {
    /**
     * Swapping here with my desired unicode character
     * */
    if (primaryCode >= 97 && primaryCode <= 122 ) {
        mComposing.append(Swap.swapLetters(primaryCode));
    }else{
        mComposing.append((char) primaryCode);
    }
    getCurrentInputConnection().setComposingText(mComposing, 1);
    //updateShiftKeyState(getCurrentInputEditorInfo()); // you can delete this method from your class and clean-up all the occurances of that 
    updateCandidates();
} else {
    getCurrentInputConnection().commitText(
            String.valueOf((char) primaryCode), 1);
}}

private void handleShift() {
    if (mInputView == null) {
        return;
    }

    Keyboard currentKeyboard = mInputView.getKeyboard();
    if (mQwertyKeyboard == currentKeyboard) {           
        mInputView.setKeyboard(mSindhi);

    } else if (currentKeyboard == mSymbolsKeyboard) {
        mInputView.setKeyboard(mSymbolsShiftedKeyboard);
    } else if (currentKeyboard == mSymbolsShiftedKeyboard) {
        mInputView.setKeyboard(mSymbolsKeyboard);
    }
}