Fragment one=newFragmentOne();//自定义的Fragment类//要先获取FragmentManager对象FragmentManager fragmentManager=getSupportFragmentManager();//开启一个FragmentTransaction事务FragmentTransaction transaction=fragmentManager.beginT
activity必须继承FragmentActivity, 必须调用getSupportFragmentManager获取fragment随便管理器FragmentManager. 而过期的Fragment的方式是: A Fragment is a piece of an application's user interface or behavior that can be placed in an Activity. Interaction with fragments is done through FragmentManager, which can...
观察上图我们可以发现,同级的Fragment_1、Fragment_2、Fragment_3 都调用了onAttach...onResume系列方法,也就是说,如果我们没有对 Fragment 进行懒加载处理,那么我们就会无缘无故的加载一些并不可见的 Fragment , 也就会造成用户流量的无故消耗(我们会在 Fragment 相关生命周期函数中,请求网络或其他数据操作)。 这...
clss, args); if (mAttached) { // If we are already attached to the window, then check to make // sure this tab's fragment is inactive if it exists. This shouldn't // normally happen. info.fragment = mFragmentManager.findFragmentByTag...
官方已经把Activity#getFragmentManager设置为Deprecated了,并添加了link到v4.Fragment,这说明Google爸爸不想让我们再用app.Fragment了,而是希望我们用v4.Fragment。 Fragment源码分析 由于Google爸爸都建议我们使用v4.Fragment了,那就只分析一下v4.Fragment的源码吧。
Interface for interacting with Fragment objects inside of an Activity<div class="special reference"> <h3>Developer Guides</h3>
主要的操作都是FragmentTransaction的方法: 1//v4包中,getSupportFragmentManager2FragmentManager fm =getFragmentManager();3//开启一个事务 (主要的操作都是FragmentTransaction的方法)4FragmentTransaction transaction =fm.benginTransatcion();56//往Activity中添加一个Fragment7transaction.add(Fragment fragment);8//...
解决方法：用Fragment来代替TabActivity，先装上更新包android-support-v4.jar，步骤如下：1.在Eclipse中选Windows->Android SDK Manager,选择Repository，找到最下面的Android Support，点击安装这个package。2.装完之后，在project里面建立一个叫libs的文件夹，路径为XXXXX/libs，和src、res等文件夹并列...
Inheritance Object Object FragmentManager.FragmentLifecycleCallbacks Attributes RegisterAttribute RemarksCallback interface for listening to fragment state changes that happen within a given FragmentManager. This member is deprecated. Use the Support Libraryandroidx.fragment.app.FragmentManager.FragmentLifecycle...
Inheritance Object Object FragmentManager.FragmentLifecycleCallbacks Attributes RegisterAttribute RemarksCallback interface for listening to fragment state changes that happen within a given FragmentManager. This member is deprecated. Use the Support Libraryandroidx.fragment.app.FragmentManager.FragmentLifecycle...