android中的activity裏獲得context方法

activity的方法中用getBaseContext();

Context context=getBaseContext();

在activity中用this即可

FileService fileService=new FileService(this);

public class FileService {
	private Context context;
	
	public FileService() {
		super();
	}

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