Android 将视图转换为位图 [英] Android Convert view to BitMap

问题描述

我正在尝试将视图转换为位图，但我失去了黑色.我是这样转换的:

I'm trying to convert a view to bitmap but I lose the black color. I'm converting like this:

Bitmap returnedBitmap = Bitmap.createBitmap(view.getWidth(),view.getHeight(), Bitmap.Config.ARGB_8888);

示例

如何转换为位图，使百分比值的黑色不丢失?

How can i convert to bitmap so the black of the percentage value is not lost?

谢谢，问候

推荐答案

您好，您可以使用此方法将View转换为Bitmap

Hi you can use this method to convert View to Bitmap

private Bitmap createBitmapFromView(Context context, View view) {
        DisplayMetrics displayMetrics = new DisplayMetrics();
        ((Activity) context).getWindowManager().getDefaultDisplay().getMetrics(displayMetrics);
        view.setLayoutParams(new LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT));

        view.measure(displayMetrics.widthPixels, displayMetrics.heightPixels);
        view.layout(0, 0, displayMetrics.widthPixels, displayMetrics.heightPixels);
        view.buildDrawingCache();
        Bitmap bitmap = Bitmap.createBitmap(view.getMeasuredWidth(), view.getMeasuredHeight(), Bitmap.Config.ARGB_8888);

        Canvas canvas = new Canvas(bitmap);
        view.draw(canvas);

        return bitmap;
    }

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