用java改变drawableBottom

Question

是否可以通过java更改按钮上的drawable？

例; 我有一个像这样的按钮.

<Button 
style="@style/Buttons" 
android:id="@+id/butFavTeam"
android:drawableBottom="@drawable/venue"/>

我想用我的drawable目录中的另一个更改当前的drawableBottom图像.

Answer 1

你看过这个方法了吗:

/*
Sets the Drawables (if any) to appear to the left of, above, to the right of, and below the text. Use 0 if you do not want a Drawable there. The Drawables' bounds will be set to their intrinsic bounds.
*/
public void  setCompoundDrawablesWithIntrinsicBounds  (Drawable left, Drawable top, Drawable right, Drawable bottom)

试试这个:

/*remember to first clear the callback of the drawable you are replacing to prevent memory leaks...
* Get the Drawables for the button by calling: myButton.getCompoundDrawables(), then loop through that calling myOldDrawable.setCallback(null);
* e.g:*/

for(Drawable myOldDrawable : myButton.getCompoundDrawables())
{
   myOldDrawable.setCallback(null);
}

//use null where you don't want a drawable
myButton.setCompoundDrawablesWithIntrinsicBounds(null,null,null, myNewDrawable);

我希望有所帮助.