早些时候这段代码可以工作,但现在它突然停止工作了。片段未与父活动分离。
public void reLoadFragment(Fragment fragment)
{
Log.i(LogGeneratorHelper.INFO_TAG, "reloading fragment");
// Reload current fragment
Fragment frg = null;
frg = getSupportFragmentManager().findFragmentByTag(fragment.getClass().getName());
frg.onDetach();
final FragmentTransaction ft = getSupportFragmentManager().beginTransaction();
ft.detach(frg);
ft.attach(frg);
ft.commit();
Log.i(LogGeneratorHelper.INFO_TAG, "reloading fragment finish");
}
ft.detach()
支持库更新 25.1.0 后不起作用。此解决方案在更新后工作正常:
getSupportFragmentManager().beginTransaction().detach(oldFragment).commitNowAllowingStateLoss();
getSupportFragmentManager().beginTransaction().attach(oldFragment).commitAllowingStateLoss();
信用:刷新或强制重绘片段
您可以使用以下
方法简单地刷新当前片段
FragmentTransaction ft = getFragmentManager().beginTransaction();
ft.detach(this).attach(this).commit();
另外,在您的情况下,您可以做这样的事情,
public void reLoadFragment(Fragment fragment)
{
Log.i(LogGeneratorHelper.INFO_TAG, "reloading fragment");
Fragment currentFragment = fragment;
if (currentFragment instanceof "FRAGMENT CLASS NAME") {
FragmentTransaction fragTransaction = (getActivity()).getFragmentManager().beginTransaction();
fragTransaction.detach(currentFragment);
fragTransaction.attach(currentFragment);
fragTransaction.commit();
Log.i(LogGeneratorHelper.INFO_TAG, "reloading fragment finish");
}
else Log.i(LogGeneratorHelper.INFO_TAG, "fragment reloading failed");
}
在 yout 主要活动中使用它:
frag_name frag_name = new frag_name();
FragmentManager manager = this.getSupportFragmentManager();
manager.beginTransaction().replace(R.id.youtframelayout, frag_name, frag_name.getTag()).commit();
它初始化fragment
并将其替换为您的FrameLayout
像这样,您再次替换碎片:)
希望它有效! :)
这将刷新当前片段:
FragmentTransaction ft = getFragmentManager().beginTransaction();
ft.detach(this).attach(this).commit();
对于 kotlin,请使用以下代码。
fragmentManager!!.beginTransaction().detach(this).attach(this).commit()
对于 kotlin:
supportFragmentManager.beginTransaction().detach(fragment).attach(fragment).commit()