强制控制键盘显示隐藏

/**
* 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);
}

}