隐藏系统软键盘工具类

public class KeyboardUtil {

/**
 * 根据EditText所在坐标和用户点击的坐标相对比，来判断是否隐藏键盘，因为当用户点击EditText时则不能隐藏
 *
 * @param v
 * @param event
 * @return
 */
public static boolean isShouldHideKeyboard(View v, MotionEvent event) {
    if (v != null && (v instanceof EditText)) {
        int[] l = {0, 0};
        v.getLocationInWindow(l);
        int left = l[0],
                top = l[1],
                bottom = top + v.getHeight(),
                right = left + v.getWidth();
        return !(event.getX() > left && event.getX()                 && event.getY() > top && event.getY()     }
    // 如果焦点不是EditText则忽略，这个发生在视图刚绘制完，第一个焦点不在EditText上，和用户用轨迹球选择其他的焦点
    return false;
}

/**
 * 获取InputMethodManager，隐藏软键盘
 *
 * @param token
 */
public static void hideKeyboard(Activity context, IBinder token) {
    if (token != null) {
        InputMethodManager imm = (InputMethodManager) context.getSystemService(Context.INPUT_METHOD_SERVICE);
        imm.hideSoftInputFromWindow(token,0);
    }
}
/**
 * 获取InputMethodManager，隐藏软键盘
 *
 * @param token
 */
public static void hideKeyboard(Activity context, IBinder token,int flags) {
    if (token != null) {
        InputMethodManager im = (InputMethodManager) context.getSystemService(Context.INPUT_METHOD_SERVICE);
        im.hideSoftInputFromWindow(token, InputMethodManager.HIDE_NOT_ALWAYS);
    }
}

public static void showKeyBoard(Activity activity, View view){
    if(activity != null && view != null) {
        InputMethodManager imm = (InputMethodManager) activity.getSystemService(Context.INPUT_METHOD_SERVICE);
        imm.showSoftInput(view, InputMethodManager.SHOW_FORCED);
    }
}

/**
 * 关闭键盘
 * @param context
 */
public static void closeSoftKeyBoard(Activity context)
{
    View view = context.getWindow().peekDecorView();
    if (view != null)
    {
        InputMethodManager imm = (InputMethodManager) context.getSystemService(Activity.INPUT_METHOD_SERVICE);
        imm.hideSoftInputFromWindow(view.getWindowToken(), 0);
    }
}
/**
 * 打开键盘
 * @param context
 */
public static void openSoftKeyBoard(Activity context)
{
    InputMethodManager imm = (InputMethodManager) context.getSystemService(Activity.INPUT_METHOD_SERVICE);
    imm.toggleSoftInput(0, InputMethodManager.HIDE_NOT_ALWAYS);
}

}