Removing fragments from an activity –

FragmantClass rSum = new FragmantClass();
getSupportFragmentManager().beginTransaction().remove(rSum).commit() ;

I’m trying to remove this piece when I load the change to another piece. The above excerpt has not been deleted. This is the method I advocate for changing the slices.

public invalid switchContent(Fragment Fragment) {
FragmantClass rSum = new FragmantClass();
getSupportFragmentManager().startTransaction().remove(rSum).commit();
mContent = fragment;
getSupportFragmentManager()
.startTransaction()
.replace(R.id.content_frame, fragment)
.commit();
getSlidingMenu().showContent();
}

How can I solve this problem?

Solution 1:

getSupportFragmentManager().beginTransaction().
remove(getSupportFragmentManager().findFragmentById(R.id.frame)).commit() ;

Try this, it should work.

public invalid switchContent(Fragment) {
getSupportFragmentManager().beginTransaction().
remove(getSupportFragmentManager().findFragmentById(R.id.frame)).commit();
mContent = fragment;
getSupportFragmentManager()
.startTransaction()
.replace(R.id.content_frame, fragment)
.commit();
getSlidingMenu().showContent();
}

Solution 2:

In my personal case, this is how I add and remove an extract:

if(getSupportFragmentManager().findFragmentById(R.id.container) != null) {getSupportFragmentManager().beginTransaction(). remove(getSupportFragmentManager().findFragmentById(R.id.container)).commit();}.getSupportFragmentManager().beginTransaction().replace(R.id.container, fragment).commit() ;

Solution 3:

This is a very simple solution to the SupportFragmentManager. FragmentManager is not as convenient, but still effective:

List fragmentList = getSupportFragmentManager().getFragments();
// All fragments are accessed by their tag,
// in this case, just follow the line below to remove fragment
if (fragmentList == null) {
// code that handles non-existent fragments
}

for (fragment : fragmentList )
{
// To save one of the fragments, add this check
// when validating
, a tag can be added as a third parameter to the fragment if (frag.getTag().equals().

or if you are required to use it (but not recommended) :

.commitAllowingStateLoss() ;

If you repeatedly delete all fragments from the view, you must check that the current fragment is Null or isDetached() or isRemoving(), otherwise NullPointerExceptions may occur.

Update 6-9-15 : The documentation for getSupportFragmentManger().getFragments() is now apparently hidden, but still works well in my code. Here is a screenshot of the documentation:

Update 8-3-15 : Unfortunately, if you’re not using the fragment support library, there’s no way to use getFragments(), but there are a few other options.

1. Give each fragment a tag or identifier when it is created, and repeat to treat each fragment as you wish.
2. Create a listener with the onAttachListener, so that every time a new song is added to the activity, you can save that song and then iterate through this data structure to handle each song as you see fit.

If you do not use getSupportFragmentManager(), you must use getFragmentManager() to process the transaction.

Solution 4:

In other words, you can replace the main content with an empty excerpt so that the main action is just displayed.

getFragmentManager()
.startTransaction()
.replace(main_content,new Fragment())
.commit() ;

Good luck!

Related Tags:

how to remove fragment from container in android, remove current fragment android, fragment remove and replace, fragment lifecycle, remove fragment from backstack, fragment transaction remove, remove fragment from fragment, how to remove fragment from framelayout