Question

我最初显示的是一个空视图。当我点击“添加图像”按钮时，它会在网格中显示一组图像，然后单击图像。我通过使用拖动层动态添加ImageView将视频放置在视图中。通过这种方式，我添加了更多图像。现在我想以编程方式调整每个图像的大小。可能吗？如果可能，请提供代码。

Answer 1

您可以使用以下代码调整图像大小。如果您知道图像路径和所需的宽度和高度

public static Bitmap resizeBitMapImage1(String filePath, int targetWidth,
            int targetHeight) {
        Bitmap bitMapImage = null;
        // First, get the dimensions of the image
        Options options = new Options();
        options.inJustDecodeBounds = true;
        BitmapFactory.decodeFile(filePath, options);
        double sampleSize = 0;
        // Only scale if we need to
        // (16384 buffer for img processing)
        Boolean scaleByHeight = Math.abs(options.outHeight - targetHeight) >= Math
                .abs(options.outWidth - targetWidth);

        if (options.outHeight * options.outWidth * 2 >= 1638) {
            // Load, scaling to smallest power of 2 that'll get it <= desired
            // dimensions
            sampleSize = scaleByHeight ? options.outHeight / targetHeight
                    : options.outWidth / targetWidth;
            sampleSize = (int) Math.pow(2d,
                    Math.floor(Math.log(sampleSize) / Math.log(2d)));
        }

        // Do the actual decoding
        options.inJustDecodeBounds = false;
        options.inTempStorage = new byte[128];
        while (true) {
            try {
                options.inSampleSize = (int) sampleSize;
                bitMapImage = BitmapFactory.decodeFile(filePath, options);

                break;
            } catch (Exception ex) {
                try {
                    sampleSize = sampleSize * 2;
                } catch (Exception ex1) {

                }
            }
        }

        return bitMapImage;
    }

由于迪帕克

是否有可能通过点击按钮调整图像程序的大小？

1 个答案: