Toast快速点击会不显示

在Android系统7.0及以上机型，快速点击显示toast，发现前面的toast覆盖显示，后面的几个Toast就不再显示。
其处理方法是在每次toast的时候，如果tosat isShowing，就调用cancle方法把之前的close

   /**
     * Close the view if it's showing, or don't show it if it isn't showing yet.
     * You do not normally have to call this.  Normally view will disappear on its own
     * after the appropriate duration.
     */
    public void cancel() {
        mTN.cancel();
    }

这里按照此方法封装一下就可以解决了

private Toast mShowingToast;
    // 主线程的Handler对象
    private Handler mHandler = new Handler(Looper.getMainLooper());

    public Toast showToastText(CharSequence text) {
        if (!canToast) {
            return null;
        }
        if (TextUtils.isEmpty(text)) {
            return mToast;
        }
        if (mShowingToast == null) {
            mShowingToast = Toast.makeText(this, "", Toast.LENGTH_SHORT);
        }
        mShowingToast.cancel();
        mShowingToast.setText(text);
        //mShowingToast.setDuration(Toast.LENGTH_SHORT);
        mHandler.postDelayed(new Runnable() {
            @Override
            public void run() {
                mShowingToast.show();
            }
        }, 300);
        return mShowingToast;
    }

有问题欢迎指正