Activity 上未调用 OnCreate

Question

我已经创建了 AbstractActivity 和一个 AbstractFormActivity 来删除一些样板代码，它们的内容可能与问题无关，但我还是 post 它，也许我误解了一些东西，他们在那里：

public abstract class AbstractActivity extends ActionBarActivity {

    protected ObjectGraph graph;

    @Inject
    public Bus bus;

    @Inject
    public App app;

    @Override
    public void onCreate(Bundle savedInstanceState, PersistableBundle persistentState) {
        super.onCreate(savedInstanceState, persistentState);
        setContentView(getLayout());
        setupInjection();
    }

    public void setupInjection() {
        graph = ((App) getApplication()).createScopedGraph(getModule());
        graph.inject(this);
        bus.register(this);
        ButterKnife.inject(this);
    }

    protected abstract Object getModule();
    protected abstract int getLayout();
}

和

public abstract class AbstractFormActivity<T extends EntidadeBase> extends AbstractActivity implements Form<T> {

    protected T entity;
    protected Map<View, Boolean> formValidations;
    protected AbstractFormActivity() {
       formValidations = new HashMap<View, Boolean>();
    }

    @Override
    public void onCreate(Bundle savedInstanceState, PersistableBundle persistentState) {
        super.onCreate(savedInstanceState, persistentState);
    }

    protected boolean passedValidations() {
        for (View key : formValidations.keySet()) {
            if (!formValidations.get(key)) {
                return false;
            }
        }
        return true;
    }

    protected void validateAndSolidify() {
        if (passedValidations()) {
            solidify();
        }
        entity = null;
    }

    @Override
    public void validateMoreComplexFields() {
    }
}

最后我创建了那些母活动的实现：

public class MercadoriaFormActivity extends AbstractFormActivity<Mercadoria> {

...

   @Override
   public void onCreate(Bundle savedInstanceState, PersistableBundle persistentState) {
        super.onCreate(savedInstanceState, persistentState);
    }

...

}

我的问题是 onCreate 方法没有被调用。

非常感谢任何帮助。

Answer 1

onCreate() 您当前使用的版本已添加到 Android 21。您应该改用以下版本：

protected void onCreate (Bundle savedInstanceState)

Answer 2

我也遇到了同样的问题。几个小时后，我发现我的错误，而不是 (savedInstanceState: Bundle, persistentState: PersistableBundle) 函数必须覆盖下面的函数。

override fun onCreate(savedInstanceState: Bundle?) {
    super.onCreate(savedInstanceState)
}

Activity 上未调用 OnCreate

OnCreate not called on Activity

android

oncreate

android-activity