work_weipa_viewpager

来源：互联网发布：录音机软件手机编辑：程序博客网时间：2024/05/17 00:10

问题3：如何实现viewpager中点击其中一个fragment上的按钮，替换成另一个与viewpager不相关且自定义的fragment?

回答：在MainActivity中写一个方法，是的view层能找到不相关的fragment，在点击事件中使用getParentFragment()来获取对象

例子：

if ("login".equals(tag)) {fragmentTag = fragmentManager.findFragmentByTag("register");if (fragmentTag != null) {RegisterFragment fragment = new RegisterFragment();fragmentManager.beginTransaction().remove(fragmentTag).commit();fragmentManager.beginTransaction().setTransition(FragmentTransaction.TRANSIT_FRAGMENT_FADE).add(R.id.main_content, fragment, "register").commit();this.replaceMain("register");} else {// 获取login对fragment对象fragmentTag = fragmentManager.findFragmentByTag(tag);}}

tv_reg.setOnClickListener(new OnClickListener() {@Overridepublic void onClick(View v) {RegisterFragment fragment = new RegisterFragment();Bundle bundle = new Bundle();Fragment yfragment = getParentFragment().getFragmentManager().findFragmentByTag("register");// 判断是否为nullif (yfragment != null) {// 移除getParentFragment().getFragmentManager().beginTransaction().remove(yfragment).commit();}// 添加getParentFragment().getFragmentManager().beginTransaction().setTransition(FragmentTransaction.TRANSIT_FRAGMENT_FADE).add(R.id.main_content, fragment, "register").commit();// 显示MainActivity activity = (MainActivity) getActivity();activity.replaceMain("register");}});

0 0