val toast = Toast.makeText(this, "", Toast.LENGTH_LONG)

val countDownTimer = object : CountDownTimer(5000, 1000) {
    override fun onTick(millisUntilFinished: Long) { }
    override fun onFinish() { toast.cancel() }
}

toast.show()
countDownTimer.start()

在所有可用的解决方案都失败后，我最终使用递归解决了问题。

代码:

//Recursive function, pass duration in seconds
public void showToast(int duration) {
    if (duration <= 0)
        return;

    Toast.makeText(this, "Hello, it's a toast", Toast.LENGTH_LONG).show();
    Handler handler = new Handler();
    handler.postDelayed(new Runnable() {
        @Override
        public void run() {
            showToast(duration-1);
        }
    }, 1000);
}

这段文字将在5秒内消失。

    final Toast toast = Toast.makeText(getApplicationContext(), "My Text", Toast.LENGTH_SHORT);
    toast.show();

    Handler handler = new Handler();
        handler.postDelayed(new Runnable() {
           @Override
           public void run() {
               toast.cancel(); 
           }
    }, 5000); // Change to what you want

编辑: 正如Itai Spector在评论中所说，它将显示约3.5秒，所以使用以下代码:

    int toastDuration = 5000; // in MilliSeconds
    Toast mToast = Toast.makeText(this, "My text", Toast.LENGTH_LONG);
    CountDownTimer countDownTimer;
    countDownTimer = new CountDownTimer(toastDuration, 1000) {
        public void onTick(long millisUntilFinished) {
            mToast.show();
        }

        public void onFinish() {
            mToast.cancel();
        }
    };

    mToast.show();
    countDownTimer.start();

我知道答案已经很晚了。我也有同样的问题，在研究了android的Toast源代码后，决定实现我自己的裸骨吐司版本。

基本上，您需要创建一个新的窗口管理器，并使用处理程序在所需的持续时间内显示和隐藏窗口

 //Create your handler
 Handler mHandler = new Handler();

//Custom Toast Layout
mLayout = layoutInflater.inflate(R.layout.customtoast, null);

//Initialisation 

mWindowManager = (WindowManager) context.getApplicationContext()
            .getSystemService(Context.WINDOW_SERVICE);
WindowManager.LayoutParams params = new WindowManager.LayoutParams();

params.gravity = Gravity.BOTTOM
params.height = WindowManager.LayoutParams.WRAP_CONTENT;
params.width = WindowManager.LayoutParams.WRAP_CONTENT;
params.flags = WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE
                | WindowManager.LayoutParams.FLAG_NOT_TOUCHABLE
                | WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON;
params.format = PixelFormat.TRANSLUCENT;
params.windowAnimations = android.R.style.Animation_Toast;
params.type = WindowManager.LayoutParams.TYPE_TOAST;

初始化布局后，您可以使用自己的隐藏和显示方法

    public void handleShow() {
    mWindowManager.addView(mLayout, mParams);
    }

    public void handleHide() {
        if (mLayout != null) {
            if (mLayout.getParent() != null) {
                mWindowManager.removeView(mLayout);
            }
                         mLayout = null;
        }

现在你所需要的就是添加两个可运行的线程，分别调用handleShow()和handleHide()，你可以将它们发布到Handler中。

    Runnable toastShowRunnable = new Runnable() {
        public void run() {
            handleShow();
        }
    };

 Runnable toastHideRunnable = new Runnable() {
        public void run() {
            handleHide();
        }
    }; 

最后一部分

public void show() {

    mHandler.post(toastShowRunnable);
    //The duration that you want
    mHandler.postDelayed(toastHideRunnable, mDuration);

}

这是一个快速而肮脏的实现。没有考虑到任何业绩。

为什么要吃吐司，当你可以拥有整个Snackbar: https://developer.android.com/reference/android/support/design/widget/Snackbar.html

小吃店>吐司，定制吐司，油炸面包丁

一个自定义背景和视图的祝酒词对我来说很管用。我在nexus 7平板电脑上测试了它，我注意到在循环过程中没有淡入淡出动画。实现如下:

public static void customToast(Context context, String message, int duration) {

    for (int i = 0; i < duration; i++) {
        Toast toast = new Toast(context);
        toast.setDuration(Toast.LENGTH_LONG);
        toast.setGravity(Gravity.CENTER, 0, 0);
        LayoutInflater inflater = (LayoutInflater) context
                .getSystemService(Context.LAYOUT_INFLATER_SERVICE);
        View view = inflater.inflate(R.layout.toast_layout, null);
        TextView textViewToast = (TextView) view
                .findViewById(R.id.textViewToast);
        textViewToast.setText(message);
        toast.setView(view);
        toast.show();
    }

}

下面是上面代码中使用的自定义textview:

<TextView xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/textViewToast"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:background="@drawable/fragment_background"
android:padding="8dp"
android:text="Large Text"
android:textAppearance="?android:attr/textAppearanceLarge"
android:textColor="@color/blue" />

@drawable/fragment_background正在使我的吐司有圆角，就像kitkat版本一样。您还可以在该文件中添加其他视图。任何改进和评论的修改都是鼓励的，因为我计划在我的live应用程序中实现这一点。