ifbugfrog

Exception:Calling startActivity() from outside of an Activity context requires the FLAG_ACTIVITY_NEW_TASK flag. Is this really what you want? You should add flag of FLAG_ACTIVITY_NEW_TASK before start activity

the acceptButton can't change the text.So I add this method to fix it

Can't change the word of NegativeButton in dialog

1

only copy the code and add a method can do that

How to draw those picture of your guide

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I want to know which software can get those picture. Ps:thanks your guide , i like that style