黑莓-设置字段背景图像以适应 [英] Blackberry - set field background image stetched to fit

问题描述

如何缩放图像-无论是使用Bitmap还是EncodedImage来填充字段的整个宽度和高度?

How can you scale an image - whether it be using Bitmap or EncodedImage to fill the entire width and height of a field?

尝试过:

protected void paintBackground(Graphics g) {
    super.paintBackground(g);
     //try bitmap
     //g.drawBitmap(0, 0, this.getWidth(), this.getHeight(), image 0, 0);
     //try encoded image
     g.drawImage(0, 0, this.getContentWidth(), this.getContentHeight(), image, 0, 0, 0);

}

推荐答案

在此问题被问到之前，这里是链接

This questn is asked before here is link Blackberry - how to resize image?

在OS 5.0中，api scaleInto方法在位图类中提供，即

In OS 5.0 the api scaleInto method is provided in Bitmap class i.e http://www.blackberry.com/developers/docs/5.0.0api/net/rim/device/api/system/Bitmap.html#scaleInto%28net.rim.device.api.system.Bitmap,%20int%29

对于低于OS 5.0，此bb kb文章将有助于图像处理 http://supportforums.blackberry. com/t5/Java-Development/Rotate-and-scale-bitmaps/ta-p/492524

For Below OS 5.0 this bb kb article will be helpful for image manipulations http://supportforums.blackberry.com/t5/Java-Development/Rotate-and-scale-bitmaps/ta-p/492524

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