FragmentKey | FragmentKey一款解决使用newInstance创建fragment定义key传值问题的apt框架
kandi X-RAY | FragmentKey Summary
kandi X-RAY | FragmentKey Summary
FragmentKey
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Top functions reviewed by kandi - BETA
- Defines the onAttach method
- Gets field bundles
- Gets the property name
- Gets the origin name
- Gets the type of the attribute
- Gets the package name
- Build a new instance of TFragment
- Creates the content view
- Attaches the username from the context
- Initialize helper
- Overridden to createView
- Returns the list of supported annotation types
FragmentKey Key Features
FragmentKey Examples and Code Snippets
Community Discussions
Trending Discussions on FragmentKey
QUESTION
I try to understand the Room persistence library with this course, however, I stuck with updating RecyclerView and populate it with data in Room. Sorry for this boilerplate code.
Data passing to Room successfully and kept there as Android Database Inspector show to me, but at the same time, Rycyclerview is empty. Here is my code :
Item:
ANSWER
Answered 2021-Jan-31 at 18:16public void setListContent(List pad_list) {
this.pad_list = pad_list;
notifyItemChanged(getItemCount());
}
QUESTION
Every Thing was working fine before, and now when i run my app it starts producing this error and my app is keep crashing.
This error is keep coming
android.content.Intent android.content.Intent.putExtra(java.lang.String, int)' on a null object reference
Here is my Splash Activity Code.
Oncreate Method code is below
@Override protected void onCreate(Bundle savedInstanceState) {
...ANSWER
Answered 2020-Sep-01 at 11:27//update by this
new Handler().postDelayed(() -> {
if(redirectingIntent != null && fragmentKey != null)
{
redirectingIntent.putExtra("fragmentKey", fragmentKey);
startActivity(redirectingIntent);
finish();
}
}, 3000);
QUESTION
I'm using the new Dagger2 (ver 2.11) and I'm using the new features like AndroidInjector, and ContributesAndroidInjector. I have an activity subcomponent,
ANSWER
Answered 2017-Oct-09 at 19:39@Binds and @ContributesAndroidInjector methods must be abstract, because they don't have method bodies. That means that they must go on an interface or abstract class. @Provides methods may be static, which means they can go on abstract classes and Java-8-compiled interfaces, but non-static ("instance") @Provides methods don't work on abstract classes. This is explicitly listed in the Dagger FAQ, under the sections "Why can’t @Binds and instance @Provides methods go in the same module?" and "What do I do instead?".
If your @Provides method doesn't use instance state, you can mark it static, and it can go onto an abstract class adjacent to your @Binds methods. If not, consider putting the bindings like @Binds and @ContributesAndroidInjector into a separate class--possibly a static nested class--and including that using the includes attribute on Dagger's @Module annotation.
QUESTION
I created an application in which i had 1 ACTIVITY and 8 Fragment in which i am inflating every fragment into the activity. but my problem is that every fragment is overlapping each other. I change the background color of every fragment but when i am clicking the vacant spaces button of my previous fragment get clicked.
please suggest me some thing to get out of this situation.
Main_Activity.class
...ANSWER
Answered 2019-Mar-04 at 06:57Don't forget to add android:clickable="true" and android:focusable="true" to the parent view of your second fragment so it catches the clicks and they don't get propagated to the fragment below. Something like this:
QUESTION
I want to pass some data from fragment parent to dialog fragment child. The trouble is I cannot pass the data through bundle since dagger instantiates fragment dialog, so the bundle is always null. I am using dagger 2.12..
I'm new to Dagger 2, so this might be something trivial. I am still trying to wrap my head around it.
I followed this tutorial, and adopted it to suit my application. To keep it simple here is my MainFragment:
...ANSWER
Answered 2018-Sep-06 at 10:12Create a fragment using static newInstance in your ConfirmationFragmentDialog class like this
QUESTION
In my efforts to follow the good and official advice for injecting and avoiding cumbersome code (which I had) from the authors themselves, I ran into a wall when trying to use the support library.
According to the article:
AppCompat users should continue to implement
AndroidInjector.Factory and not(orFragmentActivity).
I'm sticking to an MVP architecture where views are always Fragments and I don't want to involve my Activity in any DI business, but I wonder if it's necessary for this to work but so far I haven't been able to. If I skip the whole support thing, the app crashes at runtime because the instance of the fragment is support (in case it's not obvious). Then I went into the task of trying to try to implement HasSupportFragmentInjector instead of HasFragmentInjector with a whole bunch of changes due to compile errors my mind has forgotten for the sake of my mental health. After a while I come to a point of thinking how can a non-support Activity host a support fragment. Ah! Those tricky wildcards. But no matter how I've tried to follow the advice, I can't come up with a way without an EmptyModule that I also would need to setup in the Activity so it would be visible to the fragment by dagger and its (really, for me still, magic). Why I haven't tried it? I might as well have, but I'm tired of hopeless changes and I need help at this point.
AppModule.kt
...ANSWER
Answered 2018-Jul-17 at 00:40As @EpicPandaForce mentioned in the comments, you need to use AndroidSupportInjectionModule for support Fragments. You'll also need to use the FragmentKey in dagger.android.support, not the one in dagger.android. That should get you past the problem in your edit.
To your broader point, support Fragments do not extend base Fragments (which are deprecated anyway in API 28 and beyond). This paints them in contrast to AppCompatActivity and its superclass, the support library's FragmentActivity, which both extend the framework Activity as introduced in Android API level 1. Thus, whether you're using support Fragments or built-in Fragments, you might not have a parent AppCompatActivity, but you'll always have an Activity of some sort. This is important because Android reserves the right to instantiate your Fragment using its necessary public no-arg constructor, which means that the Fragment can only self-inject using things that it can find inside onAttach (i.e. its parent fragments, its Activity, or its Application).
dagger.android is unconcerned whether your Activity is an AppCompatActivity because it does not use the Activity other than looking for its own injector. You can see that in the AndroidSupportInjection.findHasFragmentInjector private method, which checks (in order) the hierarchy of parent fragments, then the Activity, then the Application. Consequently, even though practically speaking Support Fragments will only function properly on support Activities, dagger.android can bind its keys based on the superclass Activity because there's no reason to differentiate them and set up two separate maps (Activity vs AppCompatActivity). Even if there were a separation like that, you could bind AppCompatActivity injectors into your Activity map, and everything would get terribly confusing.
You should also take from that search order that if you do not have Activity-scoped bindings, you do not need to create an Activity-scoped component; you can have your Application implement HasSupportFragmentInjector, install your FooFragmentModule directly into AppComponent, and remove HasSupportFragmentInjector from your MainActivity. This is atypical only because most apps have some sense of Activity state or controllers that should be injectable (even just injecting the Activity instance itself, or its Context or Resources). If you only have your @ActivityScope annotation because you're trying to make this work, you can skip that step entirely and only use an Application component and several Fragment subcomponents. However, I think it is very likely that you will eventually need @ActivityScope, so creating a Component for it early-on is pretty reasonable.
QUESTION
I am trying to create a RecyclerView in a fragment but I am getting a null error on the RecyclerView. I was able to create the fragment successfully using the new Navigation architecture component with a bottom navigation bar. I am running Android Studio canary 3.2 Beta 1.
Note sure where I have gone wrong as I am not getting any red lines in Android Studio.
Debug Error
E/AndroidRuntime: FATAL EXCEPTION: main Process: com.projects.arise.mytestapp, PID: 28285 java.lang.RuntimeException: Unable to start activity ComponentInfo{com.projects.arise.mytestapp/com.projects.arise.mytestapp.MainActivity}: java.lang.IllegalStateException: rview_keys must not be null at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2817) at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2892) at android.app.ActivityThread.-wrap11(Unknown Source:0) at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1593) at android.os.Handler.dispatchMessage(Handler.java:105) at android.os.Looper.loop(Looper.java:164) at android.app.ActivityThread.main(ActivityThread.java:6541) at java.lang.reflect.Method.invoke(Native Method) at com.android.internal.os.Zygote$MethodAndArgsCaller.run(Zygote.java:240) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:767) Caused by: java.lang.IllegalStateException: rview_keys must not be null at com.projects.arise.mytestapp.MainActivity.onCreate(MainActivity.kt:55) at android.app.Activity.performCreate(Activity.java:6975) at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1213) at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2770) at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2892) at android.app.ActivityThread.-wrap11(Unknown Source:0) at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1593) at android.os.Handler.dispatchMessage(Handler.java:105) at android.os.Looper.loop(Looper.java:164) at android.app.ActivityThread.main(ActivityThread.java:6541) at java.lang.reflect.Method.invoke(Native Method) at com.android.internal.os.Zygote$MethodAndArgsCaller.run(Zygote.java:240) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:767)
MainActivity.kt
...ANSWER
Answered 2018-Jun-23 at 16:13you are getting the error because you commented this
//val rview_keys: RecyclerView = findViewById(R.id.rview_keys)
there is no declaration of rview_keys as a variable. So it is considering rview_keys as a view because in your activity you have a view with id rview_keys.
Following lines from error just confirm it.
java.lang.IllegalStateException: rview_keys must not be null at com.projects.arise.mytestapp.MainActivity.onCreate(MainActivity.kt:55) at
Check code at line number 55 of MainActivity.
The reason these people don't have that line is that they are using it as a view. And you can't use it as a view in onActivityCreated().
QUESTION
Given BaseFragment and its subclasses: DerivedFragmentA, DerivedFragmentB, ...
Let's say, that most of @Inject fields are common for each fragment and hence declared in BaseFragment:
ANSWER
Answered 2018-Mar-07 at 20:50Injection with Dagger 2 always works with the type you specify. inject(fragment : BaseFragment) will only ever inject the fields of BaseFragment and none of the fields declared in any subclasses. That's just something you have to keep in mind.
You say you would like to just declare one component and inject things into the BaseFragment only, so that's exactly what you can do. Instead of creating a subcomponent for your DerivedFragment you create one for your BaseFragment...
QUESTION
I've written a sample app to familiarize myself with Dagger Android. I have 2 activities with a simple fragment each, a Main Activity that has a button to launch a Details activity, which has a button that just finishes the activity. What I see is that when I finish the Details activity, it is still in memory, and every time I click the button to go to Details, a new instance is created (as expected), but not released when exiting.
I have defined the Dagger modules as follows:
AppComponent:
...ANSWER
Answered 2018-Jan-12 at 01:34After digging a bit more, it turns out there is no leak, I'm not sure why the memory profiler shows 3 allocations and no deallocations.
To test that there is no leak I overrode the finalize method in DetailsActivity and added a log to console - when I trigger a GC from the memory analyzer, after having left the Details activity, I see the log being printed, so the activity is being garbage collected.
I'll have to spend some time to figure out the profiler output for the details activity to better understand it, but at least the memory leak is disproved.
QUESTION
I need help with Dagger2.13 for Android.
I am following several examples on the internet but I am now facing an error that I can not solve.
Error:(23, 14) error: @Subcomponent.Builder is missing setters for required modules or subcomponents: [com.hugothomaz.fipe.Module.DIMarcaModulo]
I thought it best to post the problem classes in GITHub and include the repository link here.
https://github.com/hugothomaz/FIPE_Test_Dagger2.11
-FipeApplication-
...ANSWER
Answered 2017-Dec-21 at 18:43You require your Module:
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Vulnerabilities
No vulnerabilities reported
Install FragmentKey
You can use FragmentKey like any standard Java library. Please include the the jar files in your classpath. You can also use any IDE and you can run and debug the FragmentKey component as you would do with any other Java program. Best practice is to use a build tool that supports dependency management such as Maven or Gradle. For Maven installation, please refer maven.apache.org. For Gradle installation, please refer gradle.org .
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