android-fragments

问题 I'm trying to use Android Navigation instead of fragment transaction. There is one problem however which is starting to be cumbersome. Upon using a slide-in animation for the Enter Animation the new fragment goes beneath the current fragment. Be sure to check the following video to see the bug in action. https://youtu.be/gFnXiEyiypM The bug seems not to be from the Navigation component though the hacky solutions (this and this) which have been introduced for this specific problem doesn't seem

问题 I'm trying to use Android Navigation instead of fragment transaction. There is one problem however which is starting to be cumbersome. Upon using a slide-in animation for the Enter Animation the new fragment goes beneath the current fragment. Be sure to check the following video to see the bug in action. https://youtu.be/gFnXiEyiypM The bug seems not to be from the Navigation component though the hacky solutions (this and this) which have been introduced for this specific problem doesn't seem

问题 I am seeing inconsistent documentation and discussion regarding what happens when Android is low on memory and the steps the OS takes to re-claim memory. More specifically, does Android kill at the granularity of activity/fragment, or entire process? For example, if Activity B is launched in front of Activity A (and both activities are part of the same app/process), can Activity A be killed by the OS while Activity B is in the foreground and the user is interacting with Activity B (assume:

问题 I am seeing inconsistent documentation and discussion regarding what happens when Android is low on memory and the steps the OS takes to re-claim memory. More specifically, does Android kill at the granularity of activity/fragment, or entire process? For example, if Activity B is launched in front of Activity A (and both activities are part of the same app/process), can Activity A be killed by the OS while Activity B is in the foreground and the user is interacting with Activity B (assume:

问题 I'm having a problem when dealing with multiple NavHosts. This issue is very similar to the one asked here. I think the solution for this question would help me as well, but it's a post from 2017 and it still has no answer. Android Developers Documentation doesn't help and searching through the web shows absolutely nothing that could possibly help. So basically I have one Activity and two Fragments. Let's call them FruitsActivity, FruitListFragment, FruitDetailFragment, where FruitsActivity

问题 i have an activity that holds Two Fragments, i want to run ZXING scanner on one of the fragments, currently i do this on another activity like this > new IntentIntegrator(this).initiateScan(); // opens up Scan intent > ZXING how do i do that line but to open up the scan on a fragment ? Also i get the ZXING results on a reciever like this > //results when activity enters a callback sent out to another activity public void onActivityResult(int requestCode, int resultCode, Intent intent) { how

问题 This one is driving me nuts. Basically, I want to create a ViewPager and add a few Fragment s to it. Then, all I want to do, it set a value in one of the Fragment 's TextView s. I can add the Fragment s fine, and they attach, but when I go to findViewById() for one of the TextView s in the first Fragment it throws a NullPointerException . I, for the life of me, can't figure out why. Here's my code so far, let me know if more is needed please. public class SheetActivity extends

问题 I am using the Google Map's Places API's AutoCompleteSearchFragment in a Dialog . The error that I am getting occurs when I launch the dialog, close it, then relaunch it. Error Message: Error inflating class fragment. Caused by: java.lang.IllegalArgumentException: Binary XML file line #69: Duplicate id 0x7f0a0027, tag null, or parent id 0x7f0a00c7 with another fragment for `com.google.android.libraries.places.widget.AutocompleteSearchFragmet My code: Dialog alert = new Dialog(MainActivity

问题 I'm looking for a generic way to create my custom fragment with that has OnBackPressedCallback and viewModel that extends NavHostFragment using navigation graph i intend to put as child fragments into it's back stack. Normally i create NavHostFragment for each tab or fragment with their FragmentContainerView , it's easy but repetitive to create for each host with fragment_nav_host_home.xml <?xml version="1.0" encoding="utf-8"?> <layout xmlns:android="http://schemas.android.com/apk/res/android

问题 I'm looking for a generic way to create my custom fragment with that has OnBackPressedCallback and viewModel that extends NavHostFragment using navigation graph i intend to put as child fragments into it's back stack. Normally i create NavHostFragment for each tab or fragment with their FragmentContainerView , it's easy but repetitive to create for each host with fragment_nav_host_home.xml <?xml version="1.0" encoding="utf-8"?> <layout xmlns:android="http://schemas.android.com/apk/res/android