我正在使用InsertImage插入图像,但每次将图像存储在SD卡上时,其背景都会变黑。我怎样才能去掉那黑色的背景?
我的代码是:

> Bitmap Img = BitmapFactory.decodeResource(getResources(),
>              R.drawable.ic_launcher); String path =
> Images.Media.insertImage(getContentResolver(), Img, "myImg", "Image");

最佳答案

请在将图像保存到SD卡之前使用此格式--->>>bitmap.compressformat.png如果使用bitmap.compressformat.jpeg,则问题将重复出现

public class SDCard {

public void setBitmap(Bitmap bitmap, String filename)
        throws FileNotFoundException {

    File folder = new File(Environment.getExternalStorageDirectory()
            .getAbsolutePath() + "/JANU");

    if (!folder.exists()) {
        folder.mkdir();

    }
    File imagefile = new File(folder, filename);
    FileOutputStream fout = new FileOutputStream(imagefile);

    boolean bit = bitmap.compress(Bitmap.CompressFormat.PNG, 100, fout);

}

07-28 01:55
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