获取上下文中的非活性类 [英] get Context in non-Activity class

问题描述

在一个Android应用程序，有没有什么办法让android的情况下在非活性类，如果该活动的类名被称为？

In an android Application, is there any way to get the context in android in a non-activity class if the activity class name is known?

推荐答案

如果你的类是非活性的类，并且从activiy创建它的实例，您可以按如下通过后的构造函数通过上下文的实例

If your class is non-activity class, and creating an instance of it from the activiy, you can pass an instance of context via constructor of the later as follows:

class YourNonActivityClass{

// variable to hold context
private Context context;

//save the context recievied via constructor in a local variable

public YourNonActivityClass(Context context){
    this.context=context;
}

}

您可以从该活动创建该类的实例如下：

You can create instance of this class from the activity as follows:

new YourNonActivityClass(this);

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