When has the layout finished loading





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For my app I need to get the height and width of an image. However, the image has no params when I try to get them in the onCreate/ onStart/ onResume method.
At which point can I get the values of the image/ has the image been loaded?



Thanks in advance! :)










share|improve this question























  • try getting the width and height when the image is already viewable on your activity.

    – user1506104
    Jan 3 at 9:44











  • That's what I'm trying to achieve... but my method needs to be called immideately after the layout isVisible

    – L. Fath
    Jan 3 at 9:48











  • then onResume is your best chance. otherwise, your image might be empty

    – user1506104
    Jan 3 at 9:49











  • You're right, the image is empty ahh... thank you :)

    – L. Fath
    Jan 3 at 9:58











  • I have just found out that for both onStart and onResume, the layout is still completely empty (white) at the time of the image query. No wonder that the image is still empty at that time. Do you have any idea when the image has loaded and I can query the dimensions? :)

    – L. Fath
    Jan 3 at 12:49


















2















For my app I need to get the height and width of an image. However, the image has no params when I try to get them in the onCreate/ onStart/ onResume method.
At which point can I get the values of the image/ has the image been loaded?



Thanks in advance! :)










share|improve this question























  • try getting the width and height when the image is already viewable on your activity.

    – user1506104
    Jan 3 at 9:44











  • That's what I'm trying to achieve... but my method needs to be called immideately after the layout isVisible

    – L. Fath
    Jan 3 at 9:48











  • then onResume is your best chance. otherwise, your image might be empty

    – user1506104
    Jan 3 at 9:49











  • You're right, the image is empty ahh... thank you :)

    – L. Fath
    Jan 3 at 9:58











  • I have just found out that for both onStart and onResume, the layout is still completely empty (white) at the time of the image query. No wonder that the image is still empty at that time. Do you have any idea when the image has loaded and I can query the dimensions? :)

    – L. Fath
    Jan 3 at 12:49














2












2








2








For my app I need to get the height and width of an image. However, the image has no params when I try to get them in the onCreate/ onStart/ onResume method.
At which point can I get the values of the image/ has the image been loaded?



Thanks in advance! :)










share|improve this question














For my app I need to get the height and width of an image. However, the image has no params when I try to get them in the onCreate/ onStart/ onResume method.
At which point can I get the values of the image/ has the image been loaded?



Thanks in advance! :)







android layout load onresume onstart






share|improve this question













share|improve this question











share|improve this question




share|improve this question










asked Jan 3 at 9:42









L. FathL. Fath

182




182













  • try getting the width and height when the image is already viewable on your activity.

    – user1506104
    Jan 3 at 9:44











  • That's what I'm trying to achieve... but my method needs to be called immideately after the layout isVisible

    – L. Fath
    Jan 3 at 9:48











  • then onResume is your best chance. otherwise, your image might be empty

    – user1506104
    Jan 3 at 9:49











  • You're right, the image is empty ahh... thank you :)

    – L. Fath
    Jan 3 at 9:58











  • I have just found out that for both onStart and onResume, the layout is still completely empty (white) at the time of the image query. No wonder that the image is still empty at that time. Do you have any idea when the image has loaded and I can query the dimensions? :)

    – L. Fath
    Jan 3 at 12:49



















  • try getting the width and height when the image is already viewable on your activity.

    – user1506104
    Jan 3 at 9:44











  • That's what I'm trying to achieve... but my method needs to be called immideately after the layout isVisible

    – L. Fath
    Jan 3 at 9:48











  • then onResume is your best chance. otherwise, your image might be empty

    – user1506104
    Jan 3 at 9:49











  • You're right, the image is empty ahh... thank you :)

    – L. Fath
    Jan 3 at 9:58











  • I have just found out that for both onStart and onResume, the layout is still completely empty (white) at the time of the image query. No wonder that the image is still empty at that time. Do you have any idea when the image has loaded and I can query the dimensions? :)

    – L. Fath
    Jan 3 at 12:49

















try getting the width and height when the image is already viewable on your activity.

– user1506104
Jan 3 at 9:44





try getting the width and height when the image is already viewable on your activity.

– user1506104
Jan 3 at 9:44













That's what I'm trying to achieve... but my method needs to be called immideately after the layout isVisible

– L. Fath
Jan 3 at 9:48





That's what I'm trying to achieve... but my method needs to be called immideately after the layout isVisible

– L. Fath
Jan 3 at 9:48













then onResume is your best chance. otherwise, your image might be empty

– user1506104
Jan 3 at 9:49





then onResume is your best chance. otherwise, your image might be empty

– user1506104
Jan 3 at 9:49













You're right, the image is empty ahh... thank you :)

– L. Fath
Jan 3 at 9:58





You're right, the image is empty ahh... thank you :)

– L. Fath
Jan 3 at 9:58













I have just found out that for both onStart and onResume, the layout is still completely empty (white) at the time of the image query. No wonder that the image is still empty at that time. Do you have any idea when the image has loaded and I can query the dimensions? :)

– L. Fath
Jan 3 at 12:49





I have just found out that for both onStart and onResume, the layout is still completely empty (white) at the time of the image query. No wonder that the image is still empty at that time. Do you have any idea when the image has loaded and I can query the dimensions? :)

– L. Fath
Jan 3 at 12:49












1 Answer
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You need to use ViewTreeObserver with ViewTreeObserver.OnPreDrawListener.



For more details, check this answer: How to get the width and height of an android.widget.ImageView?






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    1 Answer
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    active

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    active

    oldest

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    You need to use ViewTreeObserver with ViewTreeObserver.OnPreDrawListener.



    For more details, check this answer: How to get the width and height of an android.widget.ImageView?






    share|improve this answer




























      1














      You need to use ViewTreeObserver with ViewTreeObserver.OnPreDrawListener.



      For more details, check this answer: How to get the width and height of an android.widget.ImageView?






      share|improve this answer


























        1












        1








        1







        You need to use ViewTreeObserver with ViewTreeObserver.OnPreDrawListener.



        For more details, check this answer: How to get the width and height of an android.widget.ImageView?






        share|improve this answer













        You need to use ViewTreeObserver with ViewTreeObserver.OnPreDrawListener.



        For more details, check this answer: How to get the width and height of an android.widget.ImageView?







        share|improve this answer












        share|improve this answer



        share|improve this answer










        answered Jan 3 at 10:10









        Alexey DenysenkoAlexey Denysenko

        1,8901821




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