如何在 android 中延迟秒数？

Question

我想延时显示Toast，我尝试SystemClock.sleep

但它只显示最后一条消息（“10s”）...

Toast.makeText(MainActivity.this,"1s", Toast.LENGTH_SHORT).show();
SystemClock.sleep(5000);
Toast.makeText(MainActivity.this,"5s", Toast.LENGTH_SHORT).show();
SystemClock.sleep(5000);
Toast.makeText(MainActivity.this,"10s", Toast.LENGTH_SHORT).show();

那应该是按1s,5s,10s顺序显示的吧？

我也参考了这个做法，但是实现不了... How to set delay in android?

那么问题出在哪里？

Answer 1

尝试处理程序

public void showToast(final String message, int timeInMilliSeconds, final Context context) {
    Runnable runnable = new Runnable() {
        @Override
        public void run() {
            Toast.makeText(context, message, Toast.LENGTH_SHORT).show();
        }
    };
    Handler handler = new Handler();
    handler.postDelayed(runnable, timeInMilliSeconds);
}

用法：

showToast("1s, 1000, this);
showToast("5s, 5000, this);
showToast("10s, 10000, this);

如何在 android 中延迟秒数？

How to delay seconds in android?

android

delay

system-clock