Activity之间调用成员方法

先贴代码吧,没什么可说的

public void callMethod()
	{
		try {
			//获取环境变量
			Context ctx = createPackageContext("com.forhope.zhang", Context.CONTEXT_IGNORE_SECURITY|CONTEXT_INCLUDE_CODE);
			
			//载入这个类
			Class clazz = ctx.getClassLoader().loadClass("com.forhope.zhang.MainActivity");
			
			//新建一个实例
			Object owner = clazz.newInstance();
			
			//调用方法，传入参数，得到结果
			clazz.getMethod("print", String.class).invoke(owner, "fuck");
			
			
		} catch (NameNotFoundException e) {
			e.printStackTrace();
		} catch (ClassNotFoundException e) {
			e.printStackTrace();
		} catch (IllegalAccessException e) {
			e.printStackTrace();
		} catch (InstantiationException e) {
			e.printStackTrace();
		} catch (SecurityException e) {
			e.printStackTrace();
		} catch (NoSuchMethodException e) {
			e.printStackTrace();
		} catch (IllegalArgumentException e) {
			e.printStackTrace();
		} catch (InvocationTargetException e) {
			e.printStackTrace();
		}
	}