Mixing
Initialize button in one fragment but set click on another fragment
I have defined the button in FragmentA but I want to set its click on FragmentB. I have used interfaces for that but it causes null pointer exception. Please suggest me some way.
android 
android-fragments asked Nov 22 '18 at 5:08
Divyank VijayvergiyaDivyank Vijayvergiya
8613
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I have defined the button in FragmentA but I want to set its click on FragmentB. I have used interfaces for that but it causes null pointer exception. Please suggest me some way.
android android-fragments asked Nov 22 '18 at 5:08
Divyank VijayvergiyaDivyank Vijayvergiya
8613
They'll need to have the same parent activity and then just have the click method you want to call in the activity. Calling one fragment from another is a very bad practice.
– Sub 6 Resources
Nov 22 '18 at 5:11
I have two tab layouts into one another so calling fragment from fragment is only choice for me
– Divyank Vijayvergiya
Nov 22 '18 at 5:15
Please post the code you have so far.
– Sub 6 Resources
Nov 22 '18 at 5:16
stackoverflow.com/help/how-to-ask
– dominicoder
Nov 22 '18 at 5:41
Don't do that. Don't try to manipulate one fragment from another fragment. At least use activity for that.
– Vladyslav Matviienko
Nov 22 '18 at 6:25
add a comment |
I have defined the button in FragmentA but I want to set its click on FragmentB. I have used interfaces for that but it causes null pointer exception. Please suggest me some way.
android android-fragments asked Nov 22 '18 at 5:08
Divyank VijayvergiyaDivyank Vijayvergiya
8613
I have defined the button in FragmentA but I want to set its click on FragmentB. I have used interfaces for that but it causes null pointer exception. Please suggest me some way.
android android-fragments android android-fragments asked Nov 22 '18 at 5:08
Divyank VijayvergiyaDivyank Vijayvergiya
8613
asked Nov 22 '18 at 5:08
Divyank VijayvergiyaDivyank Vijayvergiya
8613
asked Nov 22 '18 at 5:08
Divyank VijayvergiyaDivyank Vijayvergiya
8613
asked Nov 22 '18 at 5:08
Divyank VijayvergiyaDivyank Vijayvergiya
8613
asked Nov 22 '18 at 5:08
Divyank VijayvergiyaDivyank Vijayvergiya
8613
8613
They'll need to have the same parent activity and then just have the click method you want to call in the activity. Calling one fragment from another is a very bad practice.
– Sub 6 Resources
Nov 22 '18 at 5:11
I have two tab layouts into one another so calling fragment from fragment is only choice for me
– Divyank Vijayvergiya
Nov 22 '18 at 5:15
Please post the code you have so far.
– Sub 6 Resources
Nov 22 '18 at 5:16
stackoverflow.com/help/how-to-ask
– dominicoder
Nov 22 '18 at 5:41
Don't do that. Don't try to manipulate one fragment from another fragment. At least use activity for that.
– Vladyslav Matviienko
Nov 22 '18 at 6:25
add a comment |
They'll need to have the same parent activity and then just have the click method you want to call in the activity. Calling one fragment from another is a very bad practice.
– Sub 6 Resources
Nov 22 '18 at 5:11
I have two tab layouts into one another so calling fragment from fragment is only choice for me
– Divyank Vijayvergiya
Nov 22 '18 at 5:15
Please post the code you have so far.
– Sub 6 Resources
Nov 22 '18 at 5:16
stackoverflow.com/help/how-to-ask
– dominicoder
Nov 22 '18 at 5:41
Don't do that. Don't try to manipulate one fragment from another fragment. At least use activity for that.
– Vladyslav Matviienko
Nov 22 '18 at 6:25
They'll need to have the same parent activity and then just have the click method you want to call in the activity. Calling one fragment from another is a very bad practice.
– Sub 6 Resources
Nov 22 '18 at 5:11
They'll need to have the same parent activity and then just have the click method you want to call in the activity. Calling one fragment from another is a very bad practice.
– Sub 6 Resources
Nov 22 '18 at 5:11
I have two tab layouts into one another so calling fragment from fragment is only choice for me
– Divyank Vijayvergiya
Nov 22 '18 at 5:15
I have two tab layouts into one another so calling fragment from fragment is only choice for me
– Divyank Vijayvergiya
Nov 22 '18 at 5:15
Please post the code you have so far.
– Sub 6 Resources
Nov 22 '18 at 5:16
Please post the code you have so far.
– Sub 6 Resources
Nov 22 '18 at 5:16
stackoverflow.com/help/how-to-ask
– dominicoder
Nov 22 '18 at 5:41
stackoverflow.com/help/how-to-ask
– dominicoder
Nov 22 '18 at 5:41
Don't do that. Don't try to manipulate one fragment from another fragment. At least use activity for that.
– Vladyslav Matviienko
Nov 22 '18 at 6:25
Don't do that. Don't try to manipulate one fragment from another fragment. At least use activity for that.
– Vladyslav Matviienko
Nov 22 '18 at 6:25
add a comment |
1 Answer
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This is very common in Android and can be called inter component communication, where you can trigger event or message from one component to another component.
Though there are many ways to achieve it like using static entities, in your case it will be coded at parent activity because both fragment case see it, but it is not good practice and have many side effects.
You may consider to use event handler specific libraries such as EventBus, Otto, RxJava and RxAndroid.
As a beginner you may start with EventBus, though personally I like to use Rxjava.
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1 Answer
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1 Answer
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active
oldest
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oldest
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active
oldest
votes
This is very common in Android and can be called inter component communication, where you can trigger event or message from one component to another component.
Though there are many ways to achieve it like using static entities, in your case it will be coded at parent activity because both fragment case see it, but it is not good practice and have many side effects.
You may consider to use event handler specific libraries such as EventBus, Otto, RxJava and RxAndroid.
As a beginner you may start with EventBus, though personally I like to use Rxjava.
add a comment |
This is very common in Android and can be called inter component communication, where you can trigger event or message from one component to another component.
Though there are many ways to achieve it like using static entities, in your case it will be coded at parent activity because both fragment case see it, but it is not good practice and have many side effects.
You may consider to use event handler specific libraries such as EventBus, Otto, RxJava and RxAndroid.
As a beginner you may start with EventBus, though personally I like to use Rxjava.
add a comment |
This is very common in Android and can be called inter component communication, where you can trigger event or message from one component to another component.
Though there are many ways to achieve it like using static entities, in your case it will be coded at parent activity because both fragment case see it, but it is not good practice and have many side effects.
You may consider to use event handler specific libraries such as EventBus, Otto, RxJava and RxAndroid.
As a beginner you may start with EventBus, though personally I like to use Rxjava.
This is very common in Android and can be called inter component communication, where you can trigger event or message from one component to another component.
Though there are many ways to achieve it like using static entities, in your case it will be coded at parent activity because both fragment case see it, but it is not good practice and have many side effects.
You may consider to use event handler specific libraries such as EventBus, Otto, RxJava and RxAndroid.
As a beginner you may start with EventBus, though personally I like to use Rxjava.
edited Nov 22 '18 at 5:25
answered Nov 22 '18 at 5:20
user7154703
add a comment |
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They'll need to have the same parent activity and then just have the click method you want to call in the activity. Calling one fragment from another is a very bad practice.
– Sub 6 Resources
Nov 22 '18 at 5:11
I have two tab layouts into one another so calling fragment from fragment is only choice for me
– Divyank Vijayvergiya
Nov 22 '18 at 5:15
Please post the code you have so far.
– Sub 6 Resources
Nov 22 '18 at 5:16
stackoverflow.com/help/how-to-ask
– dominicoder
Nov 22 '18 at 5:41
Don't do that. Don't try to manipulate one fragment from another fragment. At least use activity for that.
– Vladyslav Matviienko
Nov 22 '18 at 6:25