setCloseButtonIcon(位图可绘制)不适用于ChromeCustomTab中的SVG [英] setCloseButtonIcon(Bitmap drawable) is not working with SVGs in ChromeCustomTab

问题描述

我需要在ChromeCustomTab Android中更改默认的跨图标，我正在使用以下代码使用后图标进行更改:

I need to change the default cross-icon in ChromeCustomTab Android, I am changing it with back-icon using the code below:

Bitmap icon = BitmapFactory.decodeResource(context.getResources(),R.drawable.ic_arrow_back_white_24dp);

它与PNG兼容，但与SVG兼容.

It is working fine with PNGs but not with SVGs.

根据本文档，我们必须根据本文档维护图像的大小.

As per this documentation, we have to maintain size of image according to this documentation.

https://developer.android.com/reference/android/support/customtabs/CustomTabsIntent.html#KEY_ICON

我认为它不起作用，因为它们没有遵循文档中给出的尺寸.

I think it is not working because they are not following the dimensions given in Documentation.

推荐答案

您需要返回有效的Bitmap.对于VectorDrawable，有必要做更多的事情.您可以使用以下方法:

You need to return a valid Bitmap. For a VectorDrawable it is necessary to do something more. You can use these methods:

private static Bitmap bitmapFromDrawable(Context context, int drawableId) {
    Drawable drawable = ContextCompat.getDrawable(context, drawableId);
    if (drawable instanceof VectorDrawable) {
        return bitmapFromVectorDrawable((VectorDrawable) drawable);
    }
    return ((BitmapDrawable) drawable).getBitmap();
}

@TargetApi(Build.VERSION_CODES.LOLLIPOP)
private static Bitmap bitmapFromVectorDrawable(VectorDrawable vectorDrawable) {
    Bitmap bitmap = Bitmap.createBitmap(vectorDrawable.getIntrinsicWidth(), vectorDrawable.getIntrinsicHeight(), Bitmap.Config.ARGB_8888);
    Canvas canvas = new Canvas(bitmap);
    vectorDrawable.setBounds(0, 0, canvas.getWidth(), canvas.getHeight());
    vectorDrawable.draw(canvas);
    return bitmap;
}

然后您可以像使用它一样

Then you can use it like:

builder.setCloseButtonIcon(bitmapFromDrawable(this, R.drawable. ic_arrow_back_white_24dp));

这篇关于setCloseButtonIcon(位图可绘制)不适用于ChromeCustomTab中的SVG的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！