1、AppcompatActivity有标题栏,Activity没有标题栏
2、AppcompatActivity本质继承与Activity
public class AppCompatActivity extends FragmentActivity implements AppCompatCallback,
TaskStackBuilder.SupportParentable, ActionBarDrawerToggle.DelegateProvider
public class FragmentActivity extends ComponentActivity implements
ViewModelStoreOwner,
ActivityCompat.OnRequestPermissionsResultCallback,
ActivityCompat.RequestPermissionsRequestCodeValidator
public class ComponentActivity extends Activity
implements LifecycleOwner, KeyEventDispatcher.Component
本文探讨了AppCompatActivity与普通Activity在标题栏显示上的区别,并深入解析了AppCompatActivity作为FragmentActivity和ActionBarDrawerToggle.DelegateProvider的继承关系。同时,揭示了ComponentActivity与LifecycleOwner的角色。
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