android - How to stretch ImageButton without the image getting blurred? -

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i create new imagebutton via "resource chooser" , end code:

<imagebutton     android:id="@+id/imagebutton1"     android:layout_width="wrap_content"     android:layout_height="wrap_content"     android:layout_alignleft="@+id/textview1"     android:layout_below="@+id/textview1"     android:layout_marginleft="14dp"     android:layout_margintop="94dp"     android:src="@drawable/mybutton" />

now, want make button way bigger, following changes:

<imagebutton     android:id="@+id/imagebutton1"     android:layout_width="120dp"     android:layout_height="120dp"     android:layout_alignleft="@+id/textview1"     android:layout_below="@+id/textview1"     android:layout_marginleft="14dp"     android:layout_margintop="94dp"     android:src="@drawable/aries" />

i change android:src="@drawable/mybutton" android:background="@drawable/mybutton" rid of grey button around image , stretch image instead.

problem:

my problem when stretching out image still uses file drawable-mdpi (as should), end stretched low resolution image. if change image drawable-mdpi folder high resolution 1 looks great, pretty sure not best solution out there have put image bigger resolution in each folder.

sound need nine-patch drawable.

a ninepatch png image in can define stretchable regions android scales when content within view exceeds normal image bounds. [...] when view grows accomodate content, nine-patch image scaled match size of view.


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