savedInstanceState) Log.e("CardFragmentTag", "onCreate:$tag") } override fun onActivityCreated...{ super.onActivityCreated(savedInstanceState) Log.e("CardFragmentTag", "onActivityCreated...CardFragmentTag: onCreate:f0 E/CardFragmentTag: onCreateView:CardFragment{7ccd71c} f0} E/CardFragmentTag: onActivityCreated...CardFragmentTag: onCreate:f1 E/CardFragmentTag: onCreateView:CardFragment{3bdad9} f1} E/CardFragmentTag: onActivityCreated...onStop 最后再回调当前页面的onStop E/CardFragmentTag: onCreateView:CardFragment{520735b} f0} E/CardFragmentTag: onActivityCreated
验证 为了验证这个想法,分别在onActivityCreated和onViewCreated中做了打印和修改背景颜色的操作 override fun onActivityCreated(savedInstanceState...{ super.onActivityCreated(savedInstanceState) LogUtilKt.i("onActivityCreated--------"...} 结论 运行发现,以上两个方法都是执行的,结论得出,我们通常把initView方法写在onCreateView方法中,但是这个时候view可能并没有返回,所以就找不到了,所以我们可以把初始化操作放在onActivityCreated
App里面的代码根据网址链接进行网页跳转是比较常用的方式,而且这种方式也比较简单,这里按照facebook来进行举例说明,具体代码如下所示: @Override public void onActivityCreated...(@Nullable Bundle savedInstanceState) { super.onActivityCreated(savedInstanceState);...height="wrap\_content"> 2、java文件里面的实现部分: @Override public void onActivityCreated...(@Nullable Bundle savedInstanceState) { super.onActivityCreated(savedInstanceState);
inflater.inflate(R.layout.fragment_fragment1, container, false); } @Override public void onActivityCreated...(Bundle savedInstanceState) { super.onActivityCreated(savedInstanceState); Log.e(TAG,..."onActivityCreated:====Fragment1 "); } @Override public void onStart() { super.onStart...(Bundle savedInstanceState) { super.onActivityCreated(savedInstanceState); Log.e(TAG,..."onActivityCreated:>>>>>Fragment2 "); } @Override public void onStart() { super.onStart
App里面的代码根据网址链接进行网页跳转是比较常用的方式,而且这种方式也比较简单,这里按照facebook来进行举例说明,具体代码如下所示: @Override public void onActivityCreated...(@Nullable Bundle savedInstanceState) { super.onActivityCreated(savedInstanceState);...layout_height="wrap_content"> 2、java文件里面的实现部分: @Override public void onActivityCreated...(@Nullable Bundle savedInstanceState) { super.onActivityCreated(savedInstanceState);
的方法处理Fragment Fragment的生命周期 它的生命周期会受到Activity的影响 启动Fragment: onAttach()->onCreate()->onCreateView()->onActivityCreated...()->onStart()->onResume() 关掉: onAttach()->onCreate()->onCreateView()->onActivityCreated()->onStart...()->onResume() onPause()->onStop() 重启: onAttach()->onCreate()->onCreateView()->onActivityCreated(...onPause()->onStop()->onDestroyView()->onDestroy()->onDetach()->onAttach()->onCreate()->onCreateView()->onActivityCreated
所以我们在第一个Fragment创建成功之后,需要设置下下一个页面是否展示 public void onActivityCreated(Bundle savedInstanceState) {...// TODO Auto-generated method stub setUserVisibleHint(true); super.onActivityCreated(...savedInstanceState) { super.onCreate(savedInstanceState); } @Override public void onActivityCreated...(Bundle savedInstanceState) { super.onActivityCreated(savedInstanceState); isViewInitiated
textView.setText(this.getClass().getSimpleName()); // 获取当前对象对应的类名称 return textView; } public void onActivityCreated...(Bundle savedInstanceState) { super.onActivityCreated(savedInstanceState); }; } 另外5个Fragment的代码都一样就是直接继承...{ View view; private String tag = "MenuFragment"; /** * 当activity创建的时候加载数据 */ @Override public void onActivityCreated...(Bundle savedInstanceState) { super.onActivityCreated(savedInstanceState); Log.i(tag, "onActivityCreated
· onActivityCreated():Fragment所在的Activity启动完成后回调。 · onStart():每次启动或恢复Fragment时被回调。 ...container, false); 30 return rootView; 31 } 32 33 @Override 34 public void onActivityCreated...(Bundle savedInstanceState) { 35 super.onActivityCreated(savedInstanceState); 36 System.out.println...(TAG + ":onActivityCreated()"); 37 } 38 39 @Override 40 public void onStart() { 41
Activity建立关联的时候调用(获得activity的传递的值) onCreateView方法 为Fragment创建视图(加载布局)时调用(给当前的fragment绘制UI布局,可以使用线程更新UI) onActivityCreated...解除关联的时候调用(脱离activity) fragment生命周期解析 当一个fragment被创建的时候: onAttach() onCreate() onCreateView() onActivityCreated...onCreate() onCreateView() onActivityCreated() 其他场景的调用 屏幕灭掉 onPause() onSaveInstanceState() onStop...onStart() onResume() 切换到其他Fragment onPause() onStop() onDestroyView() 切换回本身的Fragment onCreateView() onActivityCreated
onCreate():Fragment被创建时调用 onActivityCreated():当Activity完成onCreate()时调用 onStart():当Fragment可见时调用。...()中获取,其回调在onCreate()执行后再执行 public void onActivityCreated(Bundle savedInstanceState) { super.onActivityCreated...()回调函数中 public void onActivityCreated(Bundle savedInstanceState) { super.onActivityCreated(savedInstanceState...} 总的实现示例如下: public void onActivityCreated(Bundle savedInstanceState) { super.onActivityCreated(savedInstanceState...(Bundle savedInstanceState) { super.onActivityCreated(savedInstanceState); listView = (ListView
onAttach() onCreate() onCreateView() onActivityCreated() 当这个fragment对用户可见的时候,它会经历以下状态。...onCreate() onCreateView() onActivityCreated() fragment新的状态。...时调用(在这个方法中可以获得所在的activity onCreateView() —— 当activity要得到fragment的layout时,调用此方法,fragment在其中创建自己的layout onActivityCreated...Fragment中onActivityCreated与onViewCreated调用顺序是 onViewCreated要优先于onActivityCreated调用 比如: 直接使用ViewPager
下面开始我们的操作: 创建一个基类继承与Fragment,并重写其中的 setUserVisibleHint() 与 onActivityCreated() 方法 public abstract...extends Fragment { private boolean isvisible; //与碎片关联的活动创建完毕时调用 @Override public void onActivityCreated...(@Nullable Bundle savedInstanceState) { super.onActivityCreated(savedInstanceState);...我们在onActivityCreated处打印Log,然后在 setUserVisibleHint处也打印一句Log,观察结果: 这是因为setUserVisibleHint 在Fragment...开始前已经调用了,即就是Viewapager.setAdapter之后就已经调用,但是当时还没有初始化完成,我们的子碎片还没有缓存好,所以我们在fragment基类里面定义了一个变量,只有当 onActivityCreated
onActivityCreated() 确保与碎片相关联的活动一定已经创建完毕的时候调用。 onDestroyView() 当与碎片关联的视图被移除的时候调用。...container, false ); return view; } @Override public void onActivityCreated...(@Nullable Bundle savedInstanceState) { super.onActivityCreated(savedInstanceState);...Log.d(TAG, "onActivityCreated: 活动建立"); } @Override public void onStart() { super.onStart
savedInstanceState) { super.onCreate(savedInstanceState); Log.d(TAG, "onCreate"); } @Override public void onActivityCreated...(Bundle savedInstanceState) { super.onActivityCreated(savedInstanceState); Log.d(TAG, "onActivityCreated...onActivityCreated方法:当Activity中的onCreate方法执行完后调用。 onDestroyView方法:Fragment中的布局被移除时调用。...android:textColor="#000000" android:textSize="25sp" /> 接着打开Fragment2.java,添加onActivityCreated...(Bundle savedInstanceState) { super.onActivityCreated(savedInstanceState); Button button = (Button
@Override public void onActivityCreated(Bundle savedInstanceState) { super.onActivityCreated...} }).start(); } 但是,如果我们让线程等待2秒后再更新UI,则会发生报错,代码如下所示: @Override public void onActivityCreated...(Bundle savedInstanceState) { super.onActivityCreated(savedInstanceState); init();...ViewRootImp什么时候创建的,在onActivityCreated方法后面吗?...小伙子理解讲得还不错哦 那ViewRootImp是在onActivityCreated方法后面创建的吗?
这时 ActivityLifecycleCallbacks 就派上用场了, App 中的所有 Activity 只要执行完生命周期就一定会调用这个接口实现类的对应方法, 那你就可以在 onActivityCreated...方法中,判断了 ToolBar 的 Id 找不到就不执行设置 ToolBar 的逻辑,但是未免不够优雅 自定义接口 其实我们可以让 Activity 实现对应的自定义接口, 在 onActivityCreated...到底是哪个 Activity ,所以 ActivityLifecycleCallbacks 每个方法都会传入 Activity 做为参数,我们就可以用来区分 Activity public void onActivityCreated...interface IActivity { int initView(); void initData(); } 然后在 ActivityLifecycleCallbacks 的 onActivityCreated...方法中进行的,所以在 Activity 的 onCreate 方法中使用 setContentView 必须在 super.onCreate(savedInstanceState); 之前,不然在 onActivityCreated
当我们使用activity加fragment的时候,每个界面都要建立一个fragment,每个fragment里面都要重写onCreate(),onCreateView(),onActivityCreated...abstract class BaseFragment extends Fragment { public Context context; @Override public void onActivityCreated...(@Nullable Bundle savedInstanceState) { // TODO Auto-generated method stub super.onActivityCreated
super.onCreateView(inflater, container, savedInstanceState); } @Override public void onActivityCreated...(Bundle savedInstanceState) { super.onActivityCreated(savedInstanceState); Log.e...("HJJ", "ArrayListFragment **** onActivityCreated..."); String[] array = new String[]{"C++...10315): ArrayListFragment **** onCreateView... 01-22 15:30:28.123: E/HJJ(10315): ArrayListFragment **** onActivityCreated
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