安卓开发小问题：关闭/打开输入法弹窗

//设置输入法,如果当前页面输入法打开则关闭
    public void hideInputMethod(Activity activity){
        View a = activity.getCurrentFocus();
        if(a != null){
            InputMethodManager imm = (InputMethodManager) activity.getApplicationContext().getSystemService(Context.INPUT_METHOD_SERVICE);
            try {
                imm.hideSoftInputFromWindow(activity.getCurrentFocus().getWindowToken(), InputMethodManager.HIDE_NOT_ALWAYS);
            } catch (Exception e) {
                e.printStackTrace();
            }
        }
    }
           

/**
     * 强制显示输入法
     * @param activity
     */
    public void toggleSoftInput(View view){
        try {
            InputMethodManager imm = (InputMethodManager) getSystemService(Context.INPUT_METHOD_SERVICE);
            imm.showSoftInput(view,InputMethodManager.SHOW_FORCED);
        } catch (Exception e) {

        }
    }