((ShapeDrawable) getBackground()).getPaint().setColor(getResources().getColor(colorRes));

今天遇见一个问题. 在studio2.3编译时,colorRes报红,

有错误的代码,如下

@SuppressWarnings("deprecation")
public void setBackgroundColor(int colorRes) {
    if (getBackground() instanceof ShapeDrawable) {
        final Resources res = getResources();
        ((ShapeDrawable) getBackground()).getPaint().setColor(res.getColor(colorRes));
    }
}

解决方案 如下:

在getColor源码中,取出@ColorRes.赋值给构造函数的值

@ColorInt
@Deprecated
public int getColor(@ColorRes int id) throws NotFoundException {
    return getColor(id, null);
}

public void setBackgroundColor(@ColorRes int colorRes) {
    if (getBackground() instanceof ShapeDrawable) {
        ((ShapeDrawable) getBackground()).getPaint().setColor(getResources().getColor(colorRes));
    }
}