@Override 我自己的方法？
我的设置与您在下面看到的类似。我刚刚注意到“YourClass”实际上是在“MyClass”中实现我的一些逻辑。啊。我尝试在“YourClass”中的 setupViews() 上方抛出 @Override，但它不会编译，并指出“DataManagerActivity 类型的方法 setupViews() 必须覆盖超类方法”
代码已更改。这是一个例子。我刚刚输入了错误的内容。同样的问题。如何防止扩展 MyClass 的 YourClass 从 MyClass 实现 setupViews() ？
public class MyClass extends Activity {
@Override
public void onCreate(Bundle savedInstanceState){
super.onCreate(savedInstanceState);
setupViews();
...
}
private void setupViews() {
....
}
}
public class YourClass extends MyClass {
@Override
public void onCreate(Bundle savedInstanceState){
super.onCreate(savedInstanceState);
setupViews();
...
}
private void setupViews() {
....
}
}
I have a setup similar to what you see below. I have just noticed that "YourClass" is actually implementing some of my logic from "MyClass." Ugh. I tried to throw an @Override above setupViews() in "YourClass" but it won't compile stating, "The method setupViews() of type DataManagerActivity must override a superclass method"
Code changed. It was an example. I just typed the wrong thing. Same question. How can I keep YourClass that extends MyClass from implementing setupViews() from MyClass?
public class MyClass extends Activity {
@Override
public void onCreate(Bundle savedInstanceState){
super.onCreate(savedInstanceState);
setupViews();
...
}
private void setupViews() {
....
}
}
public class YourClass extends MyClass {
@Override
public void onCreate(Bundle savedInstanceState){
super.onCreate(savedInstanceState);
setupViews();
...
}
private void setupViews() {
....
}
}
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评论（2）
@Override指示编译器失败，除非其下面的方法重写超类（您扩展的超类）中的方法或接口之一>它实现了。编辑：抱歉我可能误解了你的意思。您无法覆盖
setupViews()的原因是它在MyClass中是private，因此您无法访问或从任何子类覆盖它。如果这就是您想要的，那么您希望您的方法受到
保护- 例如，可以在定义它的类的子类中访问和重写，但不能从外部访问。编辑 2'：所以底线：
如果您希望在子类（例如
YourClass）中可覆盖setupViews()，请使其受保护。否则，将其设为私有。@Overrideinstructs the compiler to fail unless the method underneath it overrides a method in the superclass (the one youextendfrom) or one of theinterfaces it implements.Edit: sorry I may have misinterpreted what you meant. The reason why you can't override
setupViews()is that it'sprivateinMyClassso that you cannot access or override it from any subclasses.If that's what you want, then you want your method to be
protected- as in, accesible and overrideable in subclasses of the class it's defined in, but not accessible from outside.Edit 2': so bottom line:
If you want
setupViews()to be overridable in subclasses (such asYourClass), make itprotected. Otherwise, make itprivate.我想你想用
this.setupViews();I think you want to use
this.setupViews();