java - How to resize background of imagebutton clickable space -


enter image description herei have custom imagebutton , want custom imagebutton clickable. of surrounding area of button "clickable" , initiates new activity. want minimize "clickable background" space. how can it? 

 <imagebutton     android:id="@+id/start_button"     android:layout_width="wrap_content"     android:layout_height="wrap_content"     android:layout_alignparentleft="true"     android:layout_alignparenttop="true"     android:background="@null"     android:src="@drawable/flashcardbutton" />

well giving shot api found imagebutton has method signature 

public void oninitializeaccessibilitynodeinfo(accessibilitynodeinfo info)

and accessibilitynodeinfo class has method 

public void setboundsinscreen (rect bounds)

so said think should achieve trying do, in adition @sushil answer should make work.


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