Question

public static Bitmap blur(Context context, Bitmap image) {
    int width = Math.round(image.getWidth());
    int height = Math.round(image.getHeight());

    Bitmap inputBitmap = Bitmap.createScaledBitmap(image, width, height, false);
    Bitmap outputBitmap = Bitmap.createBitmap(inputBitmap);

    RenderScript rs = RenderScript.create(context);
    ScriptIntrinsicBlur theIntrinsic = ScriptIntrinsicBlur.create(rs, Element.U8_4(rs));
    Allocation tmpIn = Allocation.createFromBitmap(rs, inputBitmap);
    Allocation tmpOut = Allocation.createFromBitmap(rs, outputBitmap);
    theIntrinsic.setRadius(25);
    theIntrinsic.setInput(tmpIn);
    theIntrinsic.forEach(tmpOut);
    tmpOut.copyTo(outputBitmap);

    return outputBitmap;
}

public static Bitmap overlayBitmap(Bitmap bitmapBackground, Bitmap bitmapImage) {
    Bitmap resized_bitmap = Bitmap.createScaledBitmap(bitmapImage, (int) (bitmapBackground.getWidth()*0.8), bitmapBackground.getWidth(),true);

    Bitmap bmOverlay = Bitmap.createBitmap(bitmapBackground.getWidth(), bitmapBackground.getHeight(), bitmapBackground.getConfig());
    Canvas canvas = new Canvas(bmOverlay);
    canvas.drawBitmap(bitmapBackground, new Matrix(), null);
    canvas.drawBitmap(resized_bitmap,bitmapBackground.getWidth()/5,bitmapBackground.getHeight()/5, null);
    return bmOverlay;
}

Answer 1

如果您只想在输入中授权alpha numerique，这是我的建议：

<input type="text" id="yazi" value=""  onkeypress="return alpha(event)"/>
    <button onclick="ElaveEt();">OK</button>

    <div id="list"></div>
    </div>
        <script>
            function ElaveEt() {
                if (document.getElementById("yazi").value.length > 0) {
                    objYazi = document.getElementById("yazi");
                    objList = document.getElementById("list");

                    objList.innerHTML = objList.innerHTML  + '<div id="Step">'+ objYazi.value + '<button  onclick="YaziniSil();" >Sil</button>' + '<div>';
                    //document.getElementById("list").innerHTML = document.getElementById("list").innerHTML + '<br>' + document.getElementById("yazi").value;
                    document.getElementById("yazi").value = null;

                } else {
                    alert('Boş xana əlavə oluna bilməz!')
                }
            }
            function YaziniSil() {
                document.getElementById("Step").remove();
            }

         function alpha(e) {
            var k;
            document.all ? k = e.keyCode : k = e.which;
            return ((k > 64 && k < 91) || (k > 96 && k < 123) || k == 8 || k == 32 || (k >= 48 && k <= 57));
        }
        </script>

如何使用javascript阻止或限制输入字段中的特殊字符

1 个答案: