是否AsyncTask的运行doInBackground相应地它的每一个参数顺序或随机？ [英] Does AsyncTask run the doInBackground accordingly to each of its parameter order or randomly?

问题描述

例如有一个的AsyncTask 字符串的... 参数，如果我做这样的呼吁

For example there is an AsyncTask of a String... parameters , if I make a call like this :

AsyncTask<String, Void, Void> someTask = new myTask(myActivity.this);
someTask.execute(string1 , string2 , string3);

什么是执行 doInBackground 的内部秩序这个任务里面的：它把字符串1首则字符串2等sequencely因为他们是所谓的时候提供，或者不它对待参数随机？

What is the internal order of execution of the doInBackground inside this task : does it treat string1 first then string2 and so on sequencely as they are provided when called , or does it treat the parameters randomly ?

推荐答案

字符串... 是一个的可变参数，在这个例子中所有的各个参数转换成的String [] ，其中的条目的阵列是他们得到了传递到方法的顺序。

String... is a "vararg", which in this example converts all individual parameters into a String[], where the entries to the array are in the order they got passed into the method.

因此​​，使用你的榜样，（字符串[]）参数[0] == <$ C C $>字符串1 ，参数[1] == 字符串2 ，参数[2] == STRING3 等<$ C C $>。这对于参数项的顺序，至于如何在每个条目参数时，这完全取决于你的code。

So using your example, (String[]) param[0] == string1, param[1] == string2, param[2] == string3 and so forth. This is for the ordering of param entries, as to how each entry in param is used, it depends entirely on your code.

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