Android setButtonDrawable()的兼容问题解决办法

 /**  * Set the background to a given Drawable, identified by its resource id.  *  * @param resid the resource id of the drawable to use as the background   */ public void setButtonDrawable(int resid) {  if (resid != 0 && resid == mButtonResource) {   return;  }  mButtonResource = resid;  Drawable d = null;  if (mButtonResource != 0) {   d = getResources().getDrawable(mButtonResource);  }  setButtonDrawable(d); } /**  * Set the background to a given Drawable  *  * @param d The Drawable to use as the background  */ public void setButtonDrawable(Drawable d) {  if (d != null) {   if (mButtonDrawable != null) {    mButtonDrawable.setCallback(null);    unscheduleDrawable(mButtonDrawable);   }   d.setCallback(this);   d.setState(getDrawableState());   d.setVisible(getVisibility() == VISIBLE, false);   mButtonDrawable = d;   mButtonDrawable.setState(null);   setMinHeight(mButtonDrawable.getIntrinsicHeight());  }  refreshDrawableState(); }

 /**  * Sets a drawable as the compound button image given its resource  * identifier.  *  * @param resId the resource identifier of the drawable  * @attr ref android.R.styleable#CompoundButton_button  */ public void setButtonDrawable(@DrawableRes int resId) {  final Drawable d;  if (resId != 0) {   d = getContext().getDrawable(resId);  } else {   d = null;  }  setButtonDrawable(d); } /**  * Sets a drawable as the compound button image.  *  * @param drawable the drawable to set  * @attr ref android.R.styleable#CompoundButton_button  */ @Nullable public void setButtonDrawable(@Nullable Drawable drawable) {  if (mButtonDrawable != drawable) {   if (mButtonDrawable != null) {    mButtonDrawable.setCallback(null);    unscheduleDrawable(mButtonDrawable);   }   mButtonDrawable = drawable;   if (drawable != null) {    drawable.setCallback(this);    drawable.setLayoutDirection(getLayoutDirection());    if (drawable.isStateful()) {     drawable.setState(getDrawableState());    }    drawable.setVisible(getVisibility() == VISIBLE, false);    setMinHeight(drawable.getIntrinsicHeight());    applyButtonTint();   }  } }

button.setButtonDrawable(new ColorDrawable(Color.TRANSPARENT));