can we call startActivityForResult from adapter?

问题

is it possible to have method onActivityResume within adapter & call startActivityForResult?

回答1:

Yes. Just pass the context of the activity to the adapter in the adapter's constructor (here stored as mContext). In getView, just call

((Activity) mContext).startActivityForResult(intent,REQUEST_FOR_ACTIVITY_CODE);

回答2:

Not necessarily pass to pass context in adapter's constructor. You can get context from parent ViewGroup. Sample for RecyclerView adapter:

 Context mContext;
 @Override
    public RecyclerView.ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
        mContext = parent.getContext();
        ...
    }

Sample for ListView BaseAdapter

 Context mContext;
 @Override
    public View getView(int position, View convertView, ViewGroup parent) {
        mContext = parent.getContext();
        ...
}

And use it wherever you want

((Activity) mContext).startActivityForResult(intent, REQUEST_FOR_ACTIVITY_CODE);

回答3:

Offcource...

((Activity) context).startActivityForResult(intent, 911);

Caution !!

Only pass MyActivity.this from activity to adapter as context.

Only pass getActivity(); from fragment to adapter as context.

来源：https://stackoverflow.com/questions/11882927/can-we-call-startactivityforresult-from-adapter