最近在做一個項，有一個收藏的功能。後來看到了一點資訊的收藏動畫，可上下彈跳，並在螢幕中央顯示。感覺不錯，所有自己就實現了一下。

這是效果：

附上完整的程式碼，其中Animation_Toast為動畫：

public class CollectToast {

    private static CollectToast toastCollectSucceed = null;

    private Toast toast = null;
    private TextView text;

    private CollectToast() {}

    /**
     * 單例模式
     *
     * @return
 

     */
    public static CollectToast createToast() {
        if (toastCollectSucceed == null) {
            toastCollectSucceed = new CollectToast();
        }
        return toastCollectSucceed;
    }

    /**
     * 顯示Toast
     *
     * @param context
     * @param root
     * @param tvString
     * @param
 
 result 是否成功
     */

    public Toast showToast(Context context, ViewGroup root, String tvString, int duration, boolean result) {
        toast = null;
        int styleId = R.style.Animation_Toast;
        if (toast == null) {
            View layout = LayoutInflater.from(context).inflate(R.layout.toast_collect_layout, root);
            text = (TextView) layout.findViewById(R.id.title_tv);
            ImageView imageView = (ImageView) layout.findViewById(R.id.iv);
            if
 
 (result)
                imageView.setBackgroundDrawable(DrawableUtil.getImageDrawable(context, R.mipmap.doneicon_popup_textpage));
            else
                imageView.setBackgroundDrawable(DrawableUtil.getImageDrawable(context, R.mipmap.close_popup_textpage));
            text.setText(tvString);
            toast = new Toast(context);
            toast.setGravity(Gravity.CENTER_VERTICAL, 0, 0);
            toast.setDuration(duration);
            toast.setView(layout);
            toast.show();
        } else {
            text.setText(tvString);
            toast.show();
        }
        //通過反射給Toast設定動畫
        try {
            Object mTN = null;
            mTN = getField(toast, "mTN");
            if (mTN != null) {
                Object mParams = getField(mTN, "mParams");
                if (mParams != null
                        && mParams instanceof WindowManager.LayoutParams) {
                    WindowManager.LayoutParams params = (WindowManager.LayoutParams) mParams;
                    params.windowAnimations = styleId;
                }
            }
        } catch (Exception e) {
            e.printStackTrace();
        }

        return toast;
    }

    /**
     * 反射欄位
     *
     * @param object    要反射的物件
     * @param fieldName 要反射的欄位名稱
     * @return
     * @throws NoSuchFieldException
     * @throws IllegalAccessException
     */
    private static Object getField(Object object, String fieldName) throws NoSuchFieldException, IllegalAccessException {
        Field field = object.getClass().getDeclaredField(fieldName);
        if (field != null) {
            field.setAccessible(true);
            return field.get(object);
        }
        return null;
    }
}