android - How to get view from context

Question

I want to get the view or findViewById   from Context  Or from intent   I m trying to reach a specific view in my broadcast receiver and the parameter of onReceive are context and intent   Well  I have a class and within it is my broadcast receiver   Now  I m trying to separate the broadcast receiver from it  but I need a way so I can still communicate with the views on my class from my separated broadcast receiver class   Thanks

User · Answer

Starting with a context  the root view of the associated activity can be had by  View rootView     Activity  context  Window DecorView FindViewById Android Resource Id Content     In Raw Android it d look something like   View rootView     Activity mContext  getWindow   getDecorView   findViewById android R id content    Then simply call the findViewById on this  View v   rootView findViewById R id your view id

User · Answer

In your broadcast receiver you could access a view via inflation a root layout from XML resource and then find all your views from this root layout with findViewByid     View view   View inflate context  R layout ROOT LAYOUT  null     Now you can access your views via  view  and cast them to your view type   myImage    ImageView  view findViewById R id my image

User · Answer

For example you can find any textView   TextView textView    TextView    Activity  context  findViewById R id textView1

User · Answer

first use this    LayoutInflater inflater    LayoutInflater  Read file this                  getSystemService Context LAYOUT INFLATER SERVICE    Read file is current activity in which you want your context   View layout   inflater inflate R layout your layout name  ViewGroup findViewById R id layout name id      then you can use this to find any element in layout   ImageView myImage    ImageView  layout findViewById R id my image

User · Answer

Why don t you just use a singleton   import android content Context    public class ClassicSingleton       private Context c null      private static ClassicSingleton instance   null      protected ClassicSingleton                   Exists only to defeat instantiation            public void setContext Context ctx            c ctx            public Context getContext                return c            public static ClassicSingleton getInstance                 if instance    null                instance   new ClassicSingleton                      return instance            Then in the activity class    private ClassicSingleton cs   ClassicSingleton getInstance      And in the non activity class   ClassicSingleton cs  ClassicSingleton getInstance            Context c cs getContext            ImageView imageView    ImageView    Activity c  findViewById R id imageView1

[android] android - How to get view from context?

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