强制控制键盘显示隐藏

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KeyBoardUtil .java

/** * 操作输入法的工具类。可以方便的关闭和显示输入法. */public class KeyBoardUtil {    private static KeyBoardUtil instance;    private InputMethodManager mInputMethodManager;    private static Activity mActivity;    private KeyBoardUtil() {        mInputMethodManager = (InputMethodManager) mActivity.getSystemService(INPUT_METHOD_SERVICE);    }    public static KeyBoardUtil getInstance(Activity activity) {        mActivity = activity;        if (instance == null) {            instance = new KeyBoardUtil();        }        return instance;    }    /**     * 强制显示输入法     */    public void show() {        show(mActivity.getWindow().getCurrentFocus());    }    public void show(View view) {        mInputMethodManager.showSoftInput(view, InputMethodManager.SHOW_FORCED);    }    /**     * 强制关闭输入法     */    public void hide() {        hide(mActivity.getWindow().getCurrentFocus());    }    public void hide(View view) {        mInputMethodManager.hideSoftInputFromWindow(view.getWindowToken(), 0);    }    /**     * 如果输入法已经显示，那么就隐藏它；如果输入法现在没显示，那么就显示它     */    public void showOrHide() {        mInputMethodManager.toggleSoftInput(0, InputMethodManager.HIDE_NOT_ALWAYS);    }}

使用.hide()会报错，报焦点获取失败时应使用 hide(View view) ，传入EditTeview控件id。

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