android – 找不到RippleDrawable

我想在代码中动态创建一个纹波.

码：

if (android.os.Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
      buyButton.setBackground(getPressedColorRippleDrawable(primaryColor, darkerVariant));
}

public static RippleDrawable getPressedColorRippleDrawable(int color, int darkerVariant) {
    if (android.os.Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
        ColorStateList colorStateList = new ColorStateList(
                new int[][]
                        {new int[]{}},
                new int[]
                        {darkerVariant}
        );
        return new RippleDrawable(colorStateList, new ColorDrawable(color), null);
    }
    return null;
}

这适用于棒棒糖,但使我的GNEX(4.3)上的应用程序崩溃.
错误：

Could not find class ‘android.graphics.drawable.RippleDrawable’, referenced from method fragments.ProductDetailFragment.getPressedColorRippleDrawable

07-17 12:57:45.757 30992-30992/com.comizzo.ginsonline E/AndroidRuntime﹕ FATAL EXCEPTION: main

java.lang.VerifyError: fragments/ProductDetailFragment

但RippleDrawable从未在Gnex上使用,因为代码未被执行.

我怎样才能解决这个问题 ？

解决方法:

问题是你需要在getPressedColorRippleDrawable中返回Drawable而不是RippleDrawable.否则,在pre-lollipop设备上,您将收到VerifyError.

标签：android,rippledrawable
来源： https://codeday.me/bug/20190923/1813901.html