在非上下文类中使用上下文类构造函数

发布于 2024-12-23 07:19:24 字数 708 浏览 0 评论 0原文

可能的重复：
在android上获取上下文的静态方式？

不确定答案是否是正确，但这件事已经阻止我好几天了。

我有两个类：

公共类 CfmDbAdapter，其中包括：
- 私有静态类DatabaseHelper扩展了SQLiteOpenHelper
- 一系列服务数据库的方法
public class DataToArray 扩展了 Application

我扩展了 Application 只是为了访问 Context，但我必须访问 CfmDbadapter 中的方法。在我所有的 Activity 类中，我都是这样做的：

private CfmDbAdapter db;    
db = new CfmDbAdapter(this);
db.open(); //one of the methods I need to access

我不能在 DataToArray 类中这样做，因为它的父类不是 Context 类（我猜）。我也无法静态访问方法，它会破坏整个代码。

原文

Possible Duplicate:
Static Way to get Context on android?

Not sure if the answer is correct, but this thing is stopping me from progress for days already.

I got two classes:

public class CfmDbAdapter which consist:
- private static class DatabaseHelper extends SQLiteOpenHelper
- series of methods to service the database
public class DataToArray extends Application

I extended Application just to have access to Context but I have to access methods from CfmDbadapter. In all my Activity classes I do it by:

private CfmDbAdapter db;    
db = new CfmDbAdapter(this);
db.open(); //one of the methods I need to access

I can't do that in my DataToArray class since it's parent is not a Context class (I gues). I can't acess methods staticly aswell, it would fck up whole code.

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