android中为什么出现这个错误Cannot resolve method 'makeText(anonymous java.lang.Runnable, int, int)'

这个错误通常是因为调用了错误的方法或参数类型不匹配。makeText方法需要三个参数：Context、String和int。如果其中任何一个参数不正确，就会出现该错误。

可能的原因包括：

1. 上下文参数不正确或为空。

2. 第二个参数应该是字符串，但错误地传递了另一种类型的数据。

3. 第三个参数应该是Toast.LENGTH_SHORT或Toast.LENGTH_LONG中的一个，但传递了不正确的数值。

检查以上问题并修复错误的参数，应该可以解决这个问题。

相关问题

Cannot resolve method 'makeText(anonymous java.lang.Runnable, int, int)'

This error occurs when you are trying to call the method `makeText()` on an anonymous `Runnable` object, but the method signature does not match any of the available `makeText()` methods.

The `makeText()` method is used to display a toast message in an Android application. It takes three arguments:

1. A `Context` object
2. A string message to be displayed
3. An integer value representing the duration of the message display

To resolve this error, you need to ensure that you are calling the `makeText()` method with the correct arguments. Check that the first argument is a `Context` object and that the second argument is a string. Also, ensure that the third argument is one of the available duration constants defined in the `Toast` class.

For example, to display a short toast message in an activity, you can use the following code:

Toast.makeText(this, "Hello World!", Toast.LENGTH_SHORT).show();

Here, `this` refers to the current activity context, "Hello World!" is the message to be displayed, and `Toast.LENGTH_SHORT` is the duration constant.